CN115779279A

CN115779279A - Head health care device

Info

Publication number: CN115779279A
Application number: CN202211480880.8A
Authority: CN
Inventors: 杨小琴; 曾胜; 曾骄阳; 陈华; 李刚; 陈道蓉; 曾小东
Original assignee: Sichuan Century Heguang Technology Development Co ltd
Current assignee: Sichuan Century Heguang Technology Development Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-03-14
Also published as: WO2024109894A1

Abstract

The invention is suitable for the technical field of physiotherapy products, and provides a head health care device which comprises a shell and a light source module arranged on the shell, wherein the shell is used for covering the head when the shell is worn, the light source module is used for emitting light towards the head when the shell is worn, and the light source module can emit 600-700 nm continuous red light with spectral power greater than 0.7; the head health-care device also comprises a pulse control device electrically connected with the light source module; the head health care device also comprises a temperature sensor arranged on the shell; the temperature sensor is electrically connected with the pulse control device and is used for detecting the temperature of one surface of the shell, which is contacted with the head, or a preset area in a space surrounded by the shell; the pulse control device is used for receiving the detection data of the temperature sensor and controlling the on-off and the current of the light source module according to the detection data of the temperature sensor. The head health care device provided by the invention can provide a wider spectrum and has better phototherapy effect.

Description

Head health care device

Technical Field

The invention belongs to the technical field of physiotherapy products, and particularly relates to a head health-care device.

Background

Alopecia is a nightmare of many people, and the number of people suffering from alopecia is increasing. Alopecia generally develops due to genetic or acquired influences. Although the hair loss does not affect the physical health of people, the hair loss seriously affects the appearance. Many people are anxious, inferior, irritable, resistant to external contact and have physical and psychological damage due to alopecia. In order to solve the problem, a head health care device for growing hair by utilizing the phototherapy principle is produced.

The action principle of phototherapy for hair growth is mainly to increase the metabolism of hair follicles and peripheral cells, promote the blood circulation of the scalp, increase the activity of the hair follicles and the peripheral cells and the delivery of nutrient substances through the irradiation of red light, integrally improve the microenvironment of the scalp, prevent alopecia and promote the growth of hairs.

However, the existing head health care device mostly adopts a single-wavelength red light source, and the phototherapy effect is weak.

Disclosure of Invention

The invention aims to provide a head health-care device, and aims to solve the technical problem that the head health-care device in the prior art is weak in phototherapy effect.

The invention is realized in such a way that the head health care device comprises a shell and a light source module arranged on the shell, wherein the shell is used for covering the head when being worn, the light source module is used for emitting light towards the head when the shell is worn, and the light source module can emit 600-700 nm continuous red light with spectral power more than 0.7.

In one embodiment, the head health care device further comprises a pulse control device electrically connected with the light source module.

In one embodiment, the head care device further comprises a temperature sensor disposed on the housing; the temperature sensor is electrically connected with the pulse control device and is used for detecting the temperature of one surface of the shell, which is in contact with the head, or a preset area in a space surrounded by the shell; the pulse control device is used for receiving the detection data of the temperature sensor and controlling the on-off and the current of the light source module according to the detection data of the temperature sensor.

In one embodiment, the light source module comprises a plurality of red light sources, and each red light source can emit 600-700 nm red light; the shell comprises a plurality of functional areas, and different functional areas correspond to different parts of the head; each functional area is provided with at least one red light source, and the absolute spectral power of a 600-700 nm waveband in mixed light formed by light emitted by all the red light sources in the same functional area is greater than 0.7.

In one embodiment, the density of the red light sources in any two of the functional regions satisfies the following relationship:

the density of the red light sources in the functional area corresponding to the head hair loss prone position is greater than that of the red light sources in the functional area corresponding to the head hair loss prone position;

the density of the red light sources is the number of the red light sources in a unit area.

In one embodiment, the pulse control device is configured to output a control signal corresponding to the functional regions one to one, so as to control the red light sources in each of the functional regions to blink according to a preset frequency through the control signal, so that the red light sources in any two of the functional regions satisfy the following relationship:

the lighting time of the red light source in the functional area corresponding to the head hair losing prone position is longer than the lighting time of the red light source in the functional area corresponding to the head hair losing prone position.

In one embodiment, the red light sources in any two of the functional regions satisfy the following relationship:

the pulse width corresponding to the red light source in the functional area corresponding to the head hair losing part is smaller than the pulse width corresponding to the red light source in the functional area corresponding to the head hair losing part;

and/or the pulse interval corresponding to the red light source in the functional area corresponding to the head hair loss prone position is smaller than the pulse interval corresponding to the red light source in the functional area corresponding to the head hair loss prone position.

In one embodiment, the pulse control device is connected in series with the light source component formed by all the red light sources in any one of the functional regions through a resistor, so that the red light sources in any two functional regions satisfy the following relationship:

the current of the red light source in the functional area corresponding to the head hair loss part is larger than that of the red light source in the functional area corresponding to the head hair loss part.

In one embodiment, the red light source comprises a blue light chip and a wavelength conversion element formed on the light-emitting side of the blue light chip, and the peak wavelength of the blue light chip is 440-475 nm.

In one embodiment, the wavelength converting element comprises a phosphor.

In one embodiment, the fluorescent body comprises a first fluorescent moiety, a second fluorescent moiety, and a third fluorescent moiety; wherein:

the material of the first fluorescent part comprises a first colloid and first fluorescent powder dispersed in the first colloid;

the material of the second fluorescent part comprises a second colloid and second fluorescent powder dispersed in the second colloid;

the material of the third fluorescent part comprises a third colloid and third fluorescent powder dispersed in the third colloid;

the first fluorescent powder comprises fluorescent powder A, fluorescent powder B and fluorescent powder D1;

the second fluorescent powder comprises fluorescent powder C, fluorescent powder D2 and fluorescent powder E1;

the third fluorescent powder comprises fluorescent powder D3, fluorescent powder E2 and fluorescent powder F;

the light-emitting wavelength of the fluorescent powder A is 600 nm-640 nm;

the light-emitting wavelength of the fluorescent powder B is 650 nm-660 nm;

the light-emitting wavelength of the fluorescent powder C is 670 nm-700 nm;

the emission wavelengths of the fluorescent powder D1, the fluorescent powder D2 and the fluorescent powder D3 are 710-730 nm independently;

the light-emitting wavelengths of the fluorescent powder E1, the fluorescent powder E2 and the fluorescent powder F are independently more than 730nm and less than or equal to 800nm.

In one embodiment, in the first phosphor, a mass ratio of the phosphor a, the phosphor B, and the phosphor D1 is 3 to 25:3 to 35:5 to 50 percent; and/or

In the second phosphor, the mass ratio of the phosphor C, the phosphor D2 and the phosphor E1 is 7-35: 7 to 40:10 to 50; and/or

In the third phosphor, the mass ratio of the phosphor D3, the phosphor E2 and the phosphor F is 10-40: 10 to 40:15 to 50 percent; and/or

The particle sizes of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder are independently less than or equal to 50 micrometers.

In one embodiment, in the first fluorescent part, the first fluorescent powder accounts for 40-87% of the total mass of the first fluorescent powder and the first colloid; and/or

In the second fluorescent part, the second fluorescent powder accounts for 30-87% of the total mass of the second fluorescent powder and the second colloid; and/or

In the third fluorescent part, the third fluorescent powder accounts for 30-87% of the total mass of the third fluorescent powder and the third colloid; and/or

At least one of the first, second and third fluorescent portions is provided separately from the other two fluorescent portions.

In one embodiment, any one of the first fluorescent moiety, the second fluorescent moiety and the third fluorescent moiety is prepared using a press molding method; and/or

The thickness of any one of the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion is 0.06mm to 0.6mm.

In one embodiment, any one of the first fluorescent moiety, the second fluorescent moiety and the third fluorescent moiety is prepared using a spray method; and/or

The thickness of any one of the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion is 0.001mm to 0.01mm.

In one embodiment, the red light source includes three light emitting units:

a first light-emitting unit including a first chip and the first fluorescent part disposed on the first chip optical path;

a second light emitting unit including a second chip and the second fluorescent part disposed on an optical path of the second chip; and

a third light emitting unit including a third chip and the third fluorescent part disposed on an optical path of the third chip;

the first chip, the second chip and the third chip are all the blue light chips.

In one embodiment, in the first light emitting unit, the light emitting wavelength of the first chip is 440nm to 460nm, and the mass ratio of the phosphor a, the phosphor B, and the phosphor D1 in the first phosphor included in the first phosphor portion is 5 to 25:5 to 25: 10-40 percent of the total mass of the first fluorescent powder and the first colloid, wherein the first fluorescent powder accounts for 50-80 percent of the total mass of the first fluorescent powder and the first colloid; and/or

In the second light emitting unit, the light emitting wavelength of the second chip is 440nm to 460nm, and the mass ratio of the phosphor C, the phosphor D2, and the phosphor E1 in the second phosphor included in the second phosphor portion is 10 to 30:10 to 35: 15-40 percent of the total mass of the second fluorescent powder and the second colloid, wherein the second fluorescent powder accounts for 50-80 percent of the total mass of the second fluorescent powder and the second colloid; and/or

In the third light-emitting unit, the light-emitting wavelength of the third chip is 440nm to 460nm, and the mass ratio of the phosphor D3, the phosphor E2, and the phosphor F in the third phosphor contained in the third phosphor portion is 12 to 35:12 to 35: 15-40 percent of the total mass of the third fluorescent powder and the third colloid, and the third fluorescent powder accounts for 50-80 percent of the total mass of the third fluorescent powder and the third colloid.

In one embodiment, the shell comprises a main body, a circuit layer and a protective layer which are sequentially stacked from outside to inside; the light source module is arranged on the circuit layer; the protective layer is an insulating light-transmitting layer and is used for covering the circuit layer and the light source module and allowing light rays emitted by the light source module to pass through.

In one embodiment, the main body, the circuit layer and the protective layer are all flexible layers.

Compared with the prior art, the invention has the technical effects that: the head health care device provided by the embodiment of the invention at least has the following effects:

the light source module in the head health-care device can obtain a flat and continuous broad spectrum, the light energy is uniformly distributed, the spectrum color of the light source module is extremely close to the corresponding spectrum color of red light in a solar spectrum, the adaptability of a biological tissue to a natural spectrum is irreplaceable, and the closer to the photon energy of the natural spectrum, the more effective the biological effect of the human biological tissue can be generated, so the growth or regeneration effect of the continuous spectrum to the biological tissue is better than the spectrum of a single wavelength, namely the head health-care device provided by the embodiment of the invention has better phototherapy effect compared with the traditional narrow-spectrum head health-care device.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic view of a head care device according to an embodiment of the present invention;

FIG. 2 is a schematic representation of a spectrum of light obtained using a head care device provided by an embodiment of the present invention;

FIG. 3 is a schematic view of a head care device according to another embodiment of the present invention, wherein the housing is exploded;

FIG. 4 is a block diagram of a control structure employed in an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of a single red light source employed in an embodiment of the present invention;

FIG. 6 is a spectrum of a red light source provided in example B1;

FIG. 7 is a spectrum of a red light source provided in example B2;

FIG. 8 is a spectrum of a red light source provided in example B3;

FIG. 9 is a spectrum of a red light source provided in example B4;

FIG. 10 is a spectrum of a red light source provided in example B5;

FIG. 11 is a spectrum of a red light source provided in example B6;

FIG. 12 is a spectrum of a red light source provided in example B7;

FIG. 13 is a spectrum of a red light source provided in example B8;

FIG. 14 is a spectrum of a red light source provided in example B9;

FIG. 15 is a spectrum of a red light source provided in comparative example B1;

FIG. 16 is a spectrum of a red light source provided in comparative example B2;

FIG. 17 is a spectrum of a red light source provided in comparative example B3.

Description of the reference numerals:

100. a housing; 110. a main body; 111. a housing; 112. a support layer; 120. a circuit layer; 130. a protective layer; 200. a light source module; 210. a blue light chip; 220. a wavelength conversion element; 221. a first film layer; 222. a second film layer; 300. a pulse control device; 400. a temperature sensor; d. the thickness of the phosphor.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present invention and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.

Explanation of technical terms:

1. spectral power:

the spectrum emitted by a light source is often not a single wavelength, but consists of a mixture of many different wavelengths of radiation. The spectral radiation of the light source in wavelength order and the intensity distribution of the individual wavelengths is referred to as the spectral power distribution of the light source.

The parameters for characterizing the magnitude of the spectral power are divided into absolute spectral power and relative spectral power. And then the absolute spectral power distribution curve: refers to a curve made of absolute values of the energy of various wavelengths of the spectral radiation;

relative spectral power distribution curve: the spectral power distribution curve is a spectral power distribution curve in which energies of various wavelengths of a light source radiation spectrum are compared with each other, and the radiation power is changed only within a predetermined range after normalization processing. The relative spectral power with the maximum radiation power is 1, and the relative spectral power of other wavelengths is less than 1.

The invention provides a new head health care device, which is improved aiming at the head health care device. The head health care device can emit 600-700 nm red light, and the spectral power of the 600-700 nm wave band in the near natural light is more than 0.7. The head care device of the present invention may be a head care cap, a head care helmet, or other shaped head care devices.

Referring to fig. 1, the head health device includes a housing 100 and a light source module (not shown) disposed on the housing 100. Wherein the housing 100 is used to cover the head when worn. The light source module is used for emitting light towards the head when the shell 100 is worn, and the light source module can emit 600-700 nm continuous red light with spectral power larger than 0.7. The spectral power may be absolute spectral power or relative spectral power. Compared with the case where the spectral power is relative spectral power, when the spectral power is absolute spectral power, the spectrum formed by the mixed light formed by the light emitted by all the white light sources located in the same functional region is closer to the solar spectrum, and therefore the absolute spectral power is preferred for the spectral power.

Specifically, the housing 100 has an inner side contacting with the head when worn and an outer side exposed to the outside, wherein the light source module may be disposed on the inner side wall of the housing 100 or disposed inside the housing 100. When the light source module is disposed in the housing 100, the component located inside the light source module needs to be made of a light-transmitting material, so that the light emitted from the light source module can be emitted through the component.

The wave band of 600-700 nm in the embodiment corresponds to red light, can penetrate 5-10 mm below biological tissue, and can promote blood circulation and hair regeneration on the surface layer of the head of a human body.

The light source module in this embodiment generally includes a plurality of light sources, each of which can emit 600 to 700nm red light, and can also emit light with a partial spectrum, as long as the light emitted by all the light sources can be mixed to form 600 to 700nm red light, and the spectral power of 600 to 700nm band in the near-natural light is greater than 0.7.

The head health care device provided by the embodiment of the invention can emit red light with the wavelength of 600-700 nm, the spectrum of the red light is shown in figure 2, wherein the light with different wave bands has different physical therapy effects:

615nm spectrum can improve color depth of color spots, remove fine lines and soften skin; the activity of skin collagen cells can be effectively enhanced by the spectrum of 633nm (the skin is tender, elastic and anti-wrinkle); the spectrum of 640nm can inhibit large pores and color deposition, remove fine lines and tender skin; the 650nm spectrum can be matched with the light absorption peak of cell mitochondria, thereby enhancing the energy supply of cells and promoting metabolism; the 660nm spectrum can enhance the migration capacity of the mesenchymal stem cells; the 670nm spectrum can promote the metabolism of the cortex (deep repair of cells); the 683nm spectrum can be matched with the light absorption peak value of hair follicle cells to promote hair regeneration; the 690nm spectrum can improve cell activity, promote metabolism and enhance skin elasticity.

The head health care device provided by the embodiment of the invention at least has the following effects:

the light source module in the head health-care device can obtain a flat and continuous broad spectrum, the light energy is uniformly distributed, the spectrum color of the light source module is extremely similar to the spectrum color corresponding to red light in a solar spectrum, and the adaptability of a biological tissue to a natural spectrum is irreplaceable, the closer to the photon energy of the natural spectrum, the more effective the biological effect of the biological tissue of a human body can be generated, so the growth or regeneration effect of the continuous spectrum to the biological tissue is superior to the spectrum of a single wavelength, namely, the head health-care device provided by the embodiment of the invention has better phototherapy effect compared with the traditional narrow-spectrum head health-care device.

There are many ways to arrange the housing 100, for example, the housing 100 may be an integrally formed structure, or may be a plurality of flexible layers arranged in a stacked manner. In order to ensure the aesthetic appearance and safety of the casing 100, in an alternative embodiment, as shown in fig. 1, the casing 100 includes a main body 110, a circuit layer 120 and a protective layer 130, which are sequentially stacked from outside to inside. The light source module is disposed on the circuit layer 120. The protective layer 130 is an insulating transparent layer for covering the circuit layer 120 and the light source module and allowing light emitted from the light source module to pass through.

Specifically, the main body 110 in the present embodiment may be an integrally molded structure, or may be a combined structure of a plurality of components, such as a stacked structure formed by combining a plurality of stacked layered structures, a combined structure formed by splicing a plurality of blocks, and the like. The circuit layer 120 includes a plurality of electrical conductors. The electric conductors can be wires, conductive strips and the like, and the number and the structure of the electric conductors can be determined according to the electric connection relationship between the light source module and an external control device or a self-contained control device of the head health care device. If the light source module only needs two electrical conductors to be connected in series with the external connection or the head health care device is provided with a control device, only two electrical conductors can be arranged in the circuit layer 120; if the light source module requires 10 conductors to achieve connection with an external connection or a control device of the head health care device, at least 10 conductors need to be disposed in the circuit layer 120. In addition, if the head health device has other functions, the functional elements can be disposed on the circuit layer 120, and the number of the electrical conductors on the circuit layer 120 will increase accordingly. The protective layer 130 in this embodiment may be a light-transmitting film, a light-transmitting adhesive layer, or the like, as long as the above-described functions are achieved.

The housing 100 has the structure provided by the embodiment, the structure is simple, and the light source module 200 and the circuit layer 120 are prevented from being exposed, so that the housing 100 has an attractive appearance and high safety.

As shown in fig. 1, in a specific embodiment, the main body 110 includes a housing 111 and a support layer 112 stacked in sequence from outside to inside. The supporting layer 112 is a supporting structure of the main body 110, is used for shaping the main body 110, and may be made of a material having a certain hardness, such as plastic and cardboard, and the outer shell 111 is a decorative structure, may be made of a material, such as plastic and cotton-flax, and generally has a high aesthetic degree. The main body 110 adopts the structure provided by the embodiment, and has the advantages of simple structure, difficult damage and long service life.

To improve the wearing comfort of the head care device, in an alternative embodiment, the main body 110, the circuit layer 120, and the protective layer 130 are all flexible layers. The flexible layer is a layered structure capable of bending and deforming under certain action force. Specifically, the main body 110 and the protective layer 130 may be made of flexible materials such as silicone, rubber, and textile materials. The circuit layer 120 may be made of a flexible circuit board, a copper foil, or the like. The structure that casing 100 adopted this embodiment to provide can be according to the head shape deformation when wearing, improves the travelling comfort when wearing, can also make the ruddiness that light source module 200 sent simultaneously near apart from the head distance, and then improves the phototherapy effect.

The light source module can be directly connected with a power line, and when the light source module is used, the light source module is directly electrified and used through the power line, and can also be connected with a power supply through a control device. In order to increase the intelligence of the head health device, as shown in fig. 3 and 4, in an alternative embodiment, the head health device further includes a pulse control device 300 electrically connected to the light source module 200. The pulse control device 300 in this embodiment may be installed on the housing 100, or may be located outside the housing 100, and may control the operation of the light source module 200 by using a PWM pulse modulation method. The head health care device adopts the structure that this embodiment provided, and accessible pulse control device 300 realizes the intelligent control of light source module 200, if regularly open or close to and adjust light source module 200's luminance etc. for the head health care device adapts to the user demand that more people are different, with promotion customer experience, enlarges the application scope of product.

Illustratively, the pulse control device 300 may include a power supply assembly, a drive controller, and a switch. The power supply component can be a rechargeable power supply module, a storage battery and/or a connecting wire connected with an external power supply. The switch can be connected with the driving controller and the power supply assembly in series, and the connection or the disconnection between the power supply assembly and the driving controller can be controlled through the switch during use, or the connection or the disconnection between the driving controller and the light source module can be controlled through the switch, so that the on-off of the light source module can be controlled. The drive controller may be comprised of one or more programmable control chips (e.g., CPU). The pulse control device 300 is connected to the light source module 200 through a wire.

The principle of the pulse control device 300 controlling the light emitting brightness of the light source module 200 through PWM is as follows: the change of different brightness is realized by adjusting the duty ratio, the duty ratio represents average voltage, the average voltage at two ends of the light source module 200 and the current-limiting resistor changes after the duty ratio changes, and the current flowing through two ends of the light source module 200 changes, therefore, when the duty ratio of PWM is adjusted to be minimum, the brightness emitted by the light source module 200 is controlled to be maximum, the duty ratio of PWM is increased in a preset time interval, the brightness emitted by the light source module 200 becomes dark, and the change period of the duty ratio is set, so that the cyclic switching of a plurality of brightness is realized, and the dynamic flicker effect of the light and dark brightness during the solar luminescence is simulated.

The principle of the pulse control device 300 adjusting the color temperature of the light source module 200 by PWM is as follows: the light flux of each light source is changed by changing the driving current of different light sources in the light source module 200, specifically, different light sources are controlled by PWM segment, for example, one or some light sources are controlled by PWMA, and the other light sources are controlled by PWMB, and the duty ratios of PWMA and PWMB are set respectively, so that the color temperature of red light generated by mixing all the light sources can be adjusted.

To further increase the intelligence of the head care device, as shown in fig. 4, in an alternative embodiment, the head care device further comprises a temperature sensor 400 disposed on the housing 100. The temperature sensor 400 is electrically connected to the pulse control device 300, and is configured to detect a temperature of a surface of the housing 100 contacting the head or a predetermined area in a space surrounded by the housing 100. The pulse control device 300 is used for receiving the detection data of the temperature sensor 400 and controlling the on/off and the current of the light source module 200 according to the detection data of the temperature sensor 400.

The arrangement of the temperature sensor 400 in this embodiment may enable the head care device to have the effect of controlling the thermal effect of the photobiological tissue. Specifically, when the head health care device is used, the function of the pulse control device 300 can be set through programming, so that the pulse control device 300 receives data acquired by the temperature sensor 400 in real time, and when the temperature sensor 400 detects that the temperature of the head health care device and the face of the head, which are contacted with each other, or the temperature in a preset area in the space enclosed by the shell 100 reaches a first preset temperature (which can be 39 ℃ or other temperatures), the pulse current transmitted to the light source module 200 is automatically reduced; when the temperature sensor 400 detects that the temperature of the head health-care device in contact with the head or the temperature of the preset area in the space surrounded by the housing 100 reaches a second preset temperature (which may be 41 degrees or other temperatures), the power supply is automatically turned off, and the power supply to the light source module 200 is stopped. Therefore, the risk that the internal temperature rise of the biological tissue is caused by the action of light and the adverse effect is caused on the activity of the biological enzyme can be effectively reduced.

The light source module has a plurality of arrangement modes, for example, the light source module can comprise a plurality of light sources which are uniformly distributed on the shell, and can also comprise a plurality of light sources which are only arranged in a local area of the shell. In an alternative embodiment, the light source module comprises a plurality of red light sources. Each red light source can emit red light of 600-700 nm. The housing includes a plurality of functional areas. Different functional areas correspond to different parts of the head. At least one red light source is arranged in each functional area. The absolute spectral power of 600-700 nm wave band in the mixed light formed by the lights emitted by all the red light sources positioned in the same functional area is more than 0.7.

Specifically, the functional regions in this embodiment may be divided according to the biological tissue characteristics (e.g., the degree of hair loss) of different parts of the head, such as a first functional region corresponding to the top region of the head, a second functional region corresponding to the back region of the brain, and a third functional region corresponding to the two side regions of the head; it is also possible to divide into a first functional area corresponding to the head top area and a second functional area corresponding to an area other than the above-mentioned area.

In the embodiment, each red light source can form a wide spectrum, and the spectral power of a 600-700 nm waveband in mixed light formed by light emitted by all light sources in each functional region is greater than 0.7, so that the head part corresponding to each functional region can obtain stronger red light irradiation, and each part of the head can obtain a good phototherapy effect.

Because the biological tissue characteristics of different parts of the head are different, the arrangement is obviously unreasonable if the number of the red light sources corresponding to different areas is consistent. In order to realize reasonable layout of the light source module, in an alternative embodiment, the density of the red light sources in any two functional regions satisfies the following relationship:

the density of the red light sources in the functional area corresponding to the head alopecia-prone part is greater than that of the red light sources in the functional area corresponding to the head alopecia-prone part. Wherein, the density of the red light sources is the number of the red light sources in a unit area. Specifically, the hair-losing part of the head and the hair-losing-prevention part of the head can be automatically set according to the hair loss degree of different parts of the head, for example, the hair-losing-prevention part of the head can be the top of the head, and the hair-losing-prevention part of the head can be the back of the brain and the temples; or the head baldness-prone part can be a certain area of the top of the head (such as at least one area in the middle of the top of the head, the middle seam and the forehead), and the head baldness-prone part is other areas except the head baldness-prone part.

The red light physiotherapy principle is to produce photochemical action on organism, so that it can produce important biological effect and therapeutic effect. The mitochondria in the cells absorb the red light most, after the red light is irradiated, the catalase activity of the mitochondria is increased, so the metabolism of the cells can be increased, the content of glycogen is increased, the protein synthesis is increased, the adenosine triphosphate decomposition is increased, the cell regeneration is enhanced, the scalp blood circulation is promoted, the activity of hair follicles and peripheral cells and the delivery of nutrient substances are increased, the scalp microenvironment is integrally improved, the alopecia is prevented, and the hair growth is promoted. Compared with the area which is not easy to lose hair, the area which is easy to lose hair needs to be repaired more, the needed light is more, the arrangement mode of the embodiment can ensure that the parts with different biological tissue characteristics can obtain corresponding light according to the requirement, and meanwhile, the problems of cost increase and the like caused by unreasonable arrangement of the red light source can be solved.

Illustratively, 4-12 red light sources can be arranged in each square centimeter in the functional region corresponding to the vertex, and 2-6 red light sources can be arranged in each square centimeter in the functional regions corresponding to other parts.

In order to obtain corresponding light from different parts of the biological tissue according to the requirement, in another optional embodiment, the pulse control device is configured to output control signals corresponding to the functional regions one to one, so as to control the red light sources in the functional regions to blink according to a preset frequency through the control signals, so that the red light sources in any two functional regions satisfy the following relationship:

It should be noted that the scheme provided by this embodiment may be applied together with the previous embodiment, or may be applied separately, and may be flexibly selected according to the use requirement.

By adopting the scheme provided by the embodiment, the control signals can be adjusted in a partition-by-partition manner according to the thicknesses of different parts of the biological tissue, so that a better beautifying effect is realized.

To achieve the above effect, the following three ways can be adopted:

firstly, the red light sources in each functional area are controlled to flicker according to a preset frequency through a control signal, so that the red light sources in any two functional areas meet the following relation:

the pulse width corresponding to the red light source in the functional region corresponding to the head hair loss prone position is smaller than the pulse width corresponding to the red light source in the functional region corresponding to the head hair loss prone position.

Secondly, controlling the red light sources in each functional area to flicker according to a preset frequency through a control signal, so that the red light sources in any two functional areas meet the following relation:

the pulse interval corresponding to the red light source in the functional region corresponding to the head hair loss prone position is smaller than the pulse interval corresponding to the red light source in the functional region corresponding to the head hair loss prone position.

Thirdly, the red light sources in the functional regions are controlled to flicker according to a preset frequency through the control signal, so that the red light sources in any two functional regions meet the following relation:

By adopting any mode, the red light sources in any two functional regions can meet the following relation:

the lighting time of the red light source in the functional area corresponding to the head hair losing prone position is longer than the lighting time of the red light source in the functional area corresponding to the head hair losing prone position. When in use, the specific setting mode can be flexibly selected according to the use requirement. When the third mode is adopted, the difference between the lighting time length of the red light source in the functional area corresponding to the hair loss position of the head and the lighting time length of the red light source in the functional area corresponding to the hair loss position of the head is the largest.

In order to obtain corresponding light rays at the parts with different biological tissue characteristics according to requirements, the following scheme can be adopted besides the above modes: the pulse control device is connected with the light source components formed by all the red light sources in any functional region in series through resistors, so that the red light sources in any two functional regions meet the following relationship:

Adopt the scheme that this embodiment provided, can be so that the luminous flux of the light source in the different functional areas is different, with the biological tissue characteristic looks adaptation at different positions in the head, and then make different positions all can realize good phototherapy effect.

For example, the current of the red light source in the functional region corresponding to the vertex of the head can be 3 to 30mA, preferably 5 to 15mA, the pulse width is 5 to 120mS, and the pulse interval is 5 to 40mS; the current of the red light source in the functional region corresponding to other parts can be 3-15 mA, the pulse width is 10-120 mS, and the pulse interval is 10-40 mS.

In an alternative embodiment, as shown in fig. 5, the red light source includes a blue chip 210 and a wavelength conversion element 220 formed on the light emitting side of the blue chip 210, and the peak wavelength of the blue chip 210 is 440-475 nm. The blue light chip 210 is configured to emit blue light, and the wavelength conversion element 220 is configured to perform wavelength conversion on monochromatic light emitted by the blue light chip 210 to generate other color light (may be red light or light of other colors), where the multiple color lights are mixed to form near-natural light. Specifically, in this embodiment, each of the red light sources may emit light having a full-color biomimetic spectrum, or may emit light having a partial spectrum, as long as the lights emitted by all the red light sources in the same light emitting assembly are mixed to form red light having a wavelength of 600-700 nm, and the spectral power of the red light is greater than 0.7. And each red light source can emit near-natural light, so that the light source can emit the near-natural light under the condition that the light source comprises a plurality of red light sources.

Since each blue light chip 210 in the present embodiment has the wavelength conversion element 220, according to the prior art, it is easier to keep the spectrum of each red light source stable and not change due to the change of the driving current, compared with the case where a plurality of blue light chips 210 share one phosphor.

The wavelength conversion element 220, which is an optical transduction element, may take various forms, and may include a phosphor color wheel, a nonlinear optical crystal, or a phosphor. Where the wavelength converting element 220 includes a phosphor, the structure is simple, facilitating light source size control. Specifically, the phosphor may be a fluorescent thin film, a fluorescent ceramic, a fluorescent glass, or the like. For convenience of processing, a fluorescent film, a fluorescent coating, a fluorescent colloid, etc. are preferable, and these fluorescent structures are generally made by mixing a phosphor in a binder such as silica gel or epoxy resin. Specifically, when the blue light chip is mounted on the substrate in a forward mounting manner, the phosphor may be a block structure formed after the entire reflection cup is filled with dots, may also be a phosphor layer sealed on the top of the reflection cup, and may also be in other forms specifically determined according to actual use requirements; when the blue light chip is mounted on the substrate in a flip-chip manner, the phosphor can be in the form of a fluorescent film, a fluorescent coating, or the like. More specifically, when the blue light chip is manufactured in a flip-chip manner, all the blue light chips 210 can be sequentially arranged at intervals, fluorescent layers are uniformly manufactured on all the blue light chips 210 in a spraying manner, a printing manner and the like, then all the light emitting units are manufactured in a cutting manner, and finally all the light emitting units are assembled on the substrate and are electrically connected with the electric connecting pieces formed on the substrate. It follows that when a fluorescent film is used for the wavelength conversion element 220, the processing is facilitated.

In an alternative embodiment, the phosphor comprises a first fluorescent moiety, a second fluorescent moiety and a third fluorescent moiety. The material of the first fluorescent part comprises a first colloid and first fluorescent powder dispersed in the first colloid. The material of the second fluorescent part comprises a second colloid and second fluorescent powder dispersed in the second colloid. The material of the third fluorescent part comprises a third colloid and third fluorescent powder dispersed in the third colloid.

The structure of each fluorescent moiety in the present embodiment may be determined as the case may be. For example, when the blue chip is mounted on the substrate in a normal mounting manner, and the phosphor is a block structure that is dotted to fill the entire reflective cup, the first fluorescent portion may be a block structure that is dotted to fill the bottom of the reflective cup, the second fluorescent portion may be a block structure that is dotted to fill the middle of the reflective cup on the upper surface of the first fluorescent portion, and the third fluorescent portion may be a block structure that is dotted to fill the top of the reflective cup on the upper surface of the second fluorescent portion; when the phosphor is a thin film or a layered structure, the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion may be a fluorescent thin film, a fluorescent coating, or the like, which are stacked.

The first fluorescent powder comprises fluorescent powder A, fluorescent powder B and fluorescent powder D1. The second phosphor includes phosphor C, phosphor D2, and phosphor E1. The third phosphor includes phosphor D3, phosphor E2, and phosphor F. The luminescent wavelength of the fluorescent powder A is 600 nm-640 nm. The luminescent wavelength of the fluorescent powder B is 650 nm-660 nm. The luminescent wavelength of the fluorescent powder C is 670 nm-700 nm. The emission wavelengths of the phosphor D1, the phosphor D2 and the phosphor D3 are 710nm to 730nm independently. The light-emitting wavelengths of the fluorescent powder E1, the fluorescent powder E2 and the fluorescent powder F are independently more than 730nm and less than or equal to 800nm.

It should be noted that, in the embodiment of the present application, the wavelength band refers to a wavelength range of red light, and the effective wavelength band refers to a wavelength range of red light capable of generating a physiotherapy effect. It is understood that the emission wavelength of the phosphor refers to the wavelength at the peak of the main peak in the spectrum of the light generated by the phosphor upon photon excitation.

Specifically, in the present embodiment, the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion may be stacked in sequence, or may be separately provided. For example, in some embodiments, the first fluorescent moiety, the second fluorescent moiety and the third fluorescent moiety are separately provided. In other examples, the first phosphor layer and the second phosphor layer are stacked to form a fourth phosphor layer comprising a double layer film layer and are disposed separately from the third phosphor layer.

The first fluorescent part, the second fluorescent part and the third fluorescent part respectively comprise the first fluorescent powder, the second fluorescent powder and the third fluorescent powder, so that when the red-light fluorescent composition is used, the first fluorescent powder, the second fluorescent powder and the third fluorescent powder do not need to be mixed in proportion, and the proportion of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder can be flexibly adjusted according to requirements during preparation of the fluorescent body. Meanwhile, the film thicknesses of the first fluorescent part, the second fluorescent part and the third fluorescent part and the concentration of the fluorescent powder can be respectively adjusted so as to further optimize the luminous efficiency.

The fluorophor that this embodiment provided can be excited by the photon and produce the wide-spectrum ruddiness as shown in fig. 2, and in the spectrogram of this ruddiness, the wave band interior peak shape of broad wave band around the crest is flat, and this wave band is effective waveband, and the luminous power and the energy density of the ruddiness in this wave band within range are close, and the homoenergetic produces physiotherapy effect, and then makes the effective waveband width of the produced ruddiness physiotherapy of the fluorophor of this application embodiment, and physiotherapy effect is good.

In a further embodiment, the light emitting wavelength of the phosphor a may be 630nm, the light emitting wavelength of the phosphor B may be 660nm, the light emitting wavelength of the phosphor C may be 679nm, the light emitting wavelengths of the phosphor D1, the phosphor D2, and the phosphor D3 may be 720nm, the light emitting wavelengths of the phosphor E1 and the phosphor E2 may be 738nm to 742nm, specifically may be 740nm, and the light emitting wavelength of the phosphor F may be 793nm to 797nm, specifically may be 795nm.

In some embodiments, the first phosphor, the second phosphor, and the third phosphor may each include at least one of a nitride red powder and a fluoride red powder. Specifically, the phosphor a, the phosphor B, the phosphor C, the phosphor D1, the phosphor D2, the phosphor D3, the phosphor E1, the phosphor E2, and the phosphor F may respectively include at least one of nitride red and fluoride red.

In an exemplary embodiment, phosphor A, phosphor B, phosphor C, phosphor D1, phosphor D2, phosphor D3, phosphor E1, phosphor E2, and phosphor F independently can be, but are not limited to, (Ca, sr) AlSiN3 (calcium strontium aluminum silicon nitrogen three, 1113) or K2SiF6: mn4+ (potassium fluorosilicate). In addition, phosphors such as phosphor a, phosphor B, phosphor C, phosphor D1, phosphor D2, phosphor D3, phosphor E1, phosphor E2, and phosphor F of each emission wavelength may be directly commercially available according to the emission wavelength.

It should be noted that any one of the phosphor a, the phosphor B, the phosphor C, the phosphor D1, the phosphor D2, the phosphor D3, the phosphor E1, the phosphor E2, or the phosphor F specifically includes several compounds, and is not limited, and may include only a single compound pure substance, or may include a mixture of a plurality of compounds.

Of course, the specific light emitting wavelengths of the phosphor D1 contained in the first phosphor, the phosphor D2 contained in the second phosphor, and the phosphor D3 contained in the third phosphor may be the same, for example, the light emitting wavelengths of the phosphor D1, the phosphor D2, and the phosphor D3 are all 720nm. The emission wavelengths of the phosphor D1, the phosphor D2, and the phosphor D3 may also be different, for example, the emission wavelengths of the phosphor D1, the phosphor D2, and the phosphor D3 are 715nm, 720nm, and 725nm, respectively. When the light emitting wavelengths of the phosphor D1, the phosphor D2 and the phosphor D3 are the same, the phosphor D1, the phosphor D2 and the phosphor D3 may be the same material, for example, the phosphor D1, the phosphor D2 and the phosphor D3 are all (Ca, sr) AlSiN3, and the phosphor D1, the phosphor D2 and the phosphor D3 may also be different materials, for example, the phosphor D1 is (Ca, sr) AlSiN3, and the phosphor D2 and the phosphor D3 are K2SiF6: mn4+. Similarly, the specific light emitting wavelengths of the phosphor E1 and the phosphor E2 may be the same or different, and when the light emitting wavelengths of the phosphor E1 and the phosphor E2 are the same, the phosphor E1 and the phosphor E2 may be the same substance or different substances.

In some embodiments, the mass ratio of the phosphor a, the phosphor B, and the phosphor D1 in the first phosphor may be controlled to be (3 to 25): (3-35): (5-50), further (5-20): (5-25): (10-40), further (5-15): (5-20): (10 to 30).

In some embodiments, the mass ratio of the phosphor C, the phosphor D2, and the phosphor E1 in the second phosphor may be controlled to be (7 to 35): (7-40): (10 to 50), further (10 to 30): (10-35): (15 to 40), further (10 to 25): (10-30): (20 to 40).

In some embodiments, the mass ratio of the phosphor D3, the phosphor E2, and the phosphor F in the third phosphor may be controlled to be (10 to 40): (10-40): (15 to 50), further (12 to 35): (12-35): (15 to 40), further (15 to 30): (15-30): (15 to 35).

The mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1, the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F are controlled within the range, so that the light intensity of red light generated by a fluorescent body, the flatness degree of a wave peak, the wavelength of the wave peak and the width degree of the wave peak can be adjusted, the wave peak in the spectrum of the red light is flatter and wider, the effective wavelength of the red light is further widened, and the physiotherapy effect of the red light is improved. Meanwhile, in the range, the specific light power of one or more wavelengths in the red light can be improved by adjusting the proportion of one or more fluorescent powders, so that the light power of the wavelength protrudes out of other wavelengths, and the phototherapy effect or function of the red light of the wavelength can be improved.

In some embodiments, the particle sizes of the first phosphor, the second phosphor and the third phosphor may be independently controlled to be less than or equal to 50 μm, and further may be 5 μm to 50 μm, and further may be 10 μm to 50 μm. The particle diameters of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder are controlled within the range, so that the particles of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder have larger specific surface areas, and the luminous efficiency is further improved. Meanwhile, when the first fluorescent powder, the second fluorescent powder, the third fluorescent powder and the colloid are molded, the particles of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder have better compatibility with the colloid, and the film thickness is thinner.

In some embodiments, the first colloid, the second colloid, and the third colloid independently may include at least one of a silicone gel and an epoxy resin. The materials such as silica gel have excellent light transmission, anti-aging property, anti-ultraviolet aging property and the like, so that the fluorescent body has good light transmission and is not easy to turn yellow due to aging in the using process.

In addition, the first colloid, the second colloid, and the third colloid may be the same, for example, in a specific example, the first colloid, the second colloid, and the third colloid are all silica gel; the first colloid, the second colloid, and the third colloid may also be different, for example, in other specific examples, the first colloid is a silica gel, and the second colloid and the third colloid are epoxy resins.

In some embodiments, the mass ratio of the first phosphor in the first phosphor portion, the second phosphor in the second phosphor portion, and the third phosphor in the third phosphor portion may be controlled to (5 to 30): (10-40): (15 to 60), further (7 to 25): (12 to 30): (17 to 50), further (10 to 20): (15-25): (20 to 40). By controlling the mass ratio of the first fluorescent powder, the second fluorescent powder and the third fluorescent powder within the range, the flatness of the front and rear peak shapes of the wave crest in the spectrogram of red light generated by the fluorescent body in the embodiment of the application is further improved, the effective wave band of red light physiotherapy is enlarged, and the physiotherapy effect is improved.

In some embodiments, any one of the first, second, and third fluorescent portions may be a single layer of film, and thus, the film thickness of the first, second, and third fluorescent portions may be made thinner. In a further embodiment, the thicknesses of the first fluorescent part, the second fluorescent part and the third fluorescent part can be controlled to be in the sub-millimeter level, such as 0.06 mm-0.60 mm, so as to improve the luminous efficiency.

In some embodiments, the first fluorescent portion includes a plurality of single film layers that are laminated and combined to form a composite film. As in the exemplary embodiment, the first fluorescent portion is a composite film formed by combining a film a, a film B and a film D1, wherein the film a contains phosphor a, the film B contains phosphor B, and the film D1 contains phosphor D1. During preparation, the film layer A, the film layer B and the film layer D1 can be separately prepared through a film pressing method, then the film layer A, the film layer B and the film layer D1 are sequentially stacked, vacuum lamination is carried out to form the first fluorescent part, the film layer A can also be formed through film spraying, film spraying is carried out on the film layer A to form the film layer B, finally, the film layer D1 is formed through film spraying again on the basis of the film layer A and the film layer B, and the film layer A, the film layer B and the film layer D1 are compounded to form the first fluorescent part.

In some embodiments, the second fluorescent part includes a plurality of single film layers, and the single film layers are laminated and combined to form the second fluorescent part, wherein the single film layers in the second fluorescent part may be combined in the same manner as the single film layers in the first fluorescent part.

In some embodiments, the third fluorescent portion includes a plurality of single film layers, and the single film layers are laminated and combined to form the third fluorescent portion, wherein the single film layers in the third fluorescent portion may be combined in the same manner as the single film layers in the first fluorescent portion.

The first fluorescent part, the second fluorescent part and the third fluorescent part are respectively formed by compounding a plurality of single film layers, so that the mass ratio and the concentration of the fluorescent powder can be flexibly controlled during the preparation of the first fluorescent part, the second fluorescent part and the third fluorescent part, the red light generated by the fluorescent body in the embodiment of the application can be further adjusted according to needs, and for example, the mass ratio and the concentration of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder can be controlled.

In some embodiments, the concentration of the first phosphor in the first phosphor portion may be controlled to be 40% to 87%, further 50% to 80%, and further 60% to 75%. The concentration of the first fluorescent powder is the ratio of the mass of the first fluorescent powder to the total mass of the first fluorescent powder and the first colloid.

In some embodiments, the concentration of the second phosphor in the second phosphor portion may be controlled to be 30% to 87%, further 40% to 80%, and further 60% to 75%. And the concentration of the second fluorescent powder is the mass ratio of the second fluorescent powder to the total mass of the second fluorescent powder and the second colloid.

In some embodiments, the concentration of the third phosphor in the third phosphor part may be controlled to be 30% to 87%, further 45% to 80%, and further 60% to 75%. And the concentration of the third fluorescent powder is the mass ratio of the third fluorescent powder to the total mass of the third fluorescent powder and the third colloid.

The concentrations of the first phosphor, the second phosphor and the third phosphor have an obvious effect on the red light power generated by the phosphor in the embodiment of the application, and the larger the concentration is, the larger the generated red light power is. The concentration of the first fluorescent powder, the concentration of the second fluorescent powder and the concentration of the third fluorescent powder are controlled within the range, and the luminous power of red light emitted by the fluorescent body can be adjusted, so that the physiotherapy effect of the red light is improved.

It is understood that the phosphor of the present embodiment can be formed by a film pressing method and/or a film spraying method.

In some embodiments, the phosphor of the embodiments of the present application is formed by a film-pressing method, and the film thickness of any one of the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion may be controlled to be 0.06mm to 0.6mm.

In some examples, the phosphor of the examples of the present application is formed by a film-spraying method, and the film thickness of any one of the first fluorescent portion, the second fluorescent portion and the third fluorescent portion may be controlled to be 0.001mm to 0.01mm, further 0.002mm to 0.006mm, and further 0.002mm to 0.003mm.

The film thickness of the fluorescent body in the embodiment of the application is controlled in the range and almost approaches to the particle size of the red fluorescent composition particles, so that after the fluorescent body and the chip are made into a light source, the refraction of exciting light generated by the chip in the fluorescent body can be further reduced, the exciting light can reach the surface of the red fluorescent composition particles to the maximum extent, the red fluorescent composition is promoted to be excited to generate red light to the maximum extent, and the light efficiency is improved. In the phosphor, the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion may have the same or different film thicknesses, and those skilled in the art can adjust the film thicknesses as necessary or depending on the luminous efficiency.

In some embodiments, the red light source of the embodiments of the present application includes a plurality of light emitting units, and specifically may include three light emitting units, namely a first light emitting unit, a second light emitting unit, and a third light emitting unit. Wherein, the first light-emitting unit comprises a first chip and the above-mentioned first fluorescent part arranged on the optical path of the first chip, the second light-emitting unit comprises a second chip and the above-mentioned second fluorescent part arranged on the optical path of the second chip, and the third light-emitting unit comprises a third chip and the above-mentioned third fluorescent part arranged on the optical path of the third chip. In other embodiments, the red light source according to the embodiment of the present application may further include two light emitting units, namely a fourth light emitting unit and a fifth light emitting unit, where the fourth light emitting unit includes a fourth chip and the fourth fluorescent portion described above, and the fifth light emitting unit includes a fifth chip and the third fluorescent portion described above.

The first fluorescent part, the second fluorescent part and the third fluorescent part are independently made into different light-emitting units, so that red light generated by different light-emitting units is compounded to form red light with wide effective waveband and good physical therapy effect. Meanwhile, the wavelength range and the flatness degree of the peak shape of the red light peak generated by the red light source can be flexibly adjusted by adjusting the peak shape of the red light generated by different light-emitting units, so that the peak shape in the wave bands before and after the peak shape is flatter, and the light power and the energy density of the red light under the wave band are closer.

In some embodiments, any one of the first fluorescent portion, the second fluorescent portion and the third fluorescent portion is formed by compounding a plurality of single film layers, and the single film layers are sequentially arranged away from the chip in the order of smaller refractive index to larger refractive index, that is, the smaller the refractive index of the single film layer is, the closer to the chip is, the larger the refractive index of the single film layer is, the farther away from the chip is. The film layer with the small refractive index is arranged close to the chip, so that light rays are transmitted to the optically denser medium from the optically denser medium in the light source, and the problem that the brightness of the red light source is low because the incident angle of the light rays is larger than the critical angle of total reflection and the light rays cannot be emitted due to the fact that the light rays are transmitted to the optically denser medium from the optically denser medium when the light rays are transmitted is solved.

In some embodiments, the light emitting wavelength of any one of the first chip, the second chip and the third chip can be controlled to be 440nm to 475nm, further 440nm to 460nm, and further 452nm to 455nm. By controlling the light-emitting wavelength of the chip within the range, the light power of the 435 nm-440 nm blue light can be reduced, so that the damage of the 435 nm-440 nm blue light to a retina is reduced. It is understood that the light emitting wavelengths of the first chip, the second chip and the third chip may be the same, for example, the light emitting wavelengths of the first chip, the second chip and the third chip are all 452nm, and the light emitting wavelengths of the first chip, the second chip and the third chip may also be different, for example, the light emitting wavelengths of the first chip, the second chip and the third chip are 452nm, 455nm and 458nm, respectively, which can be set by those skilled in the art according to the needs.

It is understood that the light emission wavelength of the chip refers to the wavelength at the peak of the main peak in the spectrum of the generated light when the chip is excited by the current.

In some embodiments, the phosphor in the red light source of the embodiments of the present application is prepared by a press molding method, and the film thickness of any one of the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion can be controlled to be 0.06mm to 0.6mm, and the emission wavelength of any one of the first chip, the second chip, and the third chip is 440nm to 475nm. In the first fluorescent part, the concentration of the first fluorescent powder is 40-87%, and the mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder is (3-25): (3-35): (5-50). In the second fluorescent part, the concentration of the second fluorescent powder is 40-87%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (7-35): (7-40): (10 to 50). The concentration of the third fluorescent powder in the third fluorescent part is 40-87%, and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F in the third fluorescent powder is (10-40): (10-40): (15 to 50).

In a further embodiment, the light emitting wavelengths of the first chip, the second chip and the third chip can be controlled to be 440nm to 460nm. The concentration of the first fluorescent powder in the first fluorescent part is 50-80%, and the mass ratio of the fluorescent powder A to the fluorescent powder B to the fluorescent powder D1 in the first fluorescent powder is (5-20): (5-25): (10 to 40). The concentration of the second fluorescent powder in the second fluorescent part is 50-80%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (10-30): (10-35): (15 to 40). The concentration of the third fluorescent powder in the third fluorescent part is 50-80%, and in the third fluorescent powder, the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F is (12-35): (12 to 35): (15 to 40).

In a further embodiment, the light emitting wavelengths of the first chip, the second chip and the third chip may be controlled to be 452nm to 455nm. The concentration of the first fluorescent powder in the first fluorescent part is 60-75%, and the mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder is (5-15): (5-20): (10 to 30). The concentration of the second fluorescent powder in the second fluorescent part is 60-75%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (10-25): (10-30): (20 to 40). The concentration of the third fluorescent powder in the third fluorescent part is 60-75%, and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F in the third fluorescent powder is (15-30): (15-30): (15 to 35).

In some embodiments, the phosphor of the red light source in the embodiments of the present application is prepared by a spray coating method, and the film thickness of any one of the first fluorescent portion, the second fluorescent portion, and the third fluorescent portion may be controlled to be 0.001mm to 0.01mm, and the emission wavelength of any one of the first chip, the second chip, and the third chip may be controlled to be 440nm to 475nm. The concentration of the first fluorescent powder in the first fluorescent part is 40-87%, and the mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder is (3-25): (3-35): (5-50). The concentration of the second fluorescent powder in the second fluorescent part is 30-85%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (7-35): (7-40): (10 to 50). The concentration of the third fluorescent powder in the third fluorescent part is 30-85%, and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F in the third fluorescent powder is (10-40): (10-40): (15 to 50).

In a further embodiment, the film thicknesses of the first fluorescent part, the second fluorescent part and the third fluorescent part may be controlled to be 0.002mm to 0.006mm, and the light emission wavelengths of the first chip, the second chip and the third chip may be controlled to be 440nm to 460nm. The concentration of the first fluorescent powder in the first fluorescent part is 50-80%, and the mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder is (5-20): (5-25): (10 to 40). The concentration of the second fluorescent powder in the second fluorescent part is 40-75%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (10-30): (10-35): (15 to 40). The concentration of the third fluorescent powder in the third fluorescent part is 45-75%, and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F in the third fluorescent powder is (12-35): (12-35): (15 to 40).

In still further embodiments, the first, second, and third fluorescent portions may have film thicknesses of 0.002 to 0.003mm, and the first, second, and third chips may have emission wavelengths of 452 to 455nm. The concentration of the first fluorescent powder in the first fluorescent part is 60-75%, and the mass ratio of the fluorescent powder A, the fluorescent powder B and the fluorescent powder D1 in the first fluorescent powder is (5-15): (5-20): (10 to 30). The concentration of the second fluorescent powder in the second fluorescent part is 60-75%, and the mass ratio of the fluorescent powder C, the fluorescent powder D2 and the fluorescent powder E1 in the second fluorescent powder is (10-25): (10-30): (20 to 40). The concentration of the third fluorescent powder in the third fluorescent part is 60-69%, and the mass ratio of the fluorescent powder D3, the fluorescent powder E2 and the fluorescent powder F in the third fluorescent powder is (15-30): (15-30): (15 to 35).

In order to make the details and operation of the above embodiments of the present application clearly understood by those skilled in the art, and to make the advanced performance of the phosphor and the red light source obvious in the embodiments of the present application, the above technical solutions are exemplified by the following embodiments.

Examples A1 to A9

Examples A1 to A9 each provide a phosphor. The phosphors of embodiments A1 to A9 include a first fluorescent portion including a colloid and a first phosphor, a second fluorescent portion including a colloid and a second phosphor, and a third fluorescent portion including a colloid and a third phosphor. The colloid in each fluorescent part is silica gel. The phosphor is in the form of a fluorescent film.

The first fluorescent powder comprises fluorescent powder A, fluorescent powder B and fluorescent powder D1. (Ca, sr) AlSiN with luminescent wavelength of 630nm of phosphor A ₃ (Ca, sr) AlSiN with luminescent wavelength of 660nm of phosphor B ₃ (Ca, sr) AlSiN with 720nm light-emitting wavelength of the fluorescent powder D1 ₃ 。

The second phosphor includes phosphor C, phosphor D2, and phosphor E1. (Ca, sr) AlSiN with luminescent wavelength of 679nm of phosphor C ₃ (Ca, sr) AlSiN with 720nm light-emitting wavelength of the phosphor D2 ₃ (Ca, sr) AlSiN with the luminescence wavelength of 740nm of the fluorescent powder E1 ₃ 。

The third fluorescent powder comprises fluorescent powder D3,Phosphor E2 and phosphor F. (Ca, sr) AlSiN with luminous wavelength of 720nm of fluorescent powder D3 ₃ (Ca, sr) AlSiN with the luminescence wavelength of 740nm of the fluorescent powder E2 ₃ (Ca, sr) AlSiN with light-emitting wavelength of 795nm of phosphor F ₃ 。

The mass ratio of the phosphor a, the phosphor B, and the phosphor D1 in the first phosphor, the mass ratio of the phosphor C, the phosphor D2, and the phosphor E1 in the second phosphor, and the mass ratio of the phosphor D3, the phosphor E2, and the phosphor F in the third phosphor contained in the red phosphor compositions of examples A1 to A9 are detailed in table 1 below.

The thicknesses of the first, second, and third fluorescent portions, the concentration of the first phosphor in the first fluorescent portion, the concentration of the second phosphor in the second fluorescent portion, and the concentration of the third phosphor in the third fluorescent portion in the phosphors of examples A1 to A9 are detailed in table 2.

Comparative example A1

This comparative example provides a phosphor. The phosphor of the comparative example was prepared by a press molding method, had a film thickness of 0.20mm, and comprised silica gel and a red-light fluorescent composition having a concentration of 50%, which comprised phosphor a, phosphor B and phosphor D1. Phosphor a, phosphor B, and phosphor D1 of this comparative example are the same as phosphor a, phosphor B, and phosphor D1 of example A5. The mass ratio of the phosphor a, the phosphor B and the phosphor D1 in this comparative example is detailed in table 1 below.

Comparative example A2

This comparative example provides a phosphor. The phosphor of this comparative example is substantially the same as the phosphor of comparative example A1 except that the red fluorescent composition in this comparative example includes phosphor C, phosphor D2 and phosphor E1. Phosphor C, phosphor D2, and phosphor E1 of this comparative example were the same as phosphor C, phosphor D2, and phosphor E1 of example A5. The mass ratio of the phosphor C, the phosphor D2 and the phosphor E1 in this comparative example is detailed in table 1.

Comparative example A3

This comparative example provides a phosphor. The phosphor of this comparative example is substantially the same as the phosphor of comparative example A1 except that the red fluorescent composition in this comparative example includes a phosphor D3, a phosphor E2 and a phosphor F. The phosphor D3, the phosphor E2, and the phosphor F in this comparative example are the same as the phosphor D3, the phosphor E2, and the phosphor F in example A5. In this comparative example, the mass ratio of the phosphor D3, the phosphor E2, and the phosphor F is specified in table 1.

TABLE 1 component ratios of the phosphors

TABLE 2 phosphor film thickness and phosphor concentration parameters

3. Red light source embodiments

Examples B1 to B9

Embodiments B1 to B9 provide a red light source including a first light emitting unit, a second light emitting unit, and a third light emitting unit.

The first light-emitting unit comprises a first chip and a first fluorescent part, the second light-emitting unit comprises a second chip and a second fluorescent part, and the third light-emitting unit comprises a third light-emitting chip and a third fluorescent part. Wherein, the light emitting wavelengths of the first chip, the second chip and the third chip are as shown in table 3 below.

In example B1, the first fluorescent moiety is the first fluorescent moiety of example A1, the second fluorescent moiety is the second fluorescent moiety of example A1, and the third fluorescent moiety is the third fluorescent moiety of example A1; in example B2, the first fluorescent moiety is the first fluorescent moiety of example A2, the second fluorescent moiety is the second fluorescent moiety of example A2, and the third fluorescent moiety is the third fluorescent moiety of example A2; by analogy, in example B9, the first fluorescent moiety is the first fluorescent moiety of example A9, the second fluorescent moiety is the second fluorescent moiety of example A9, and the third fluorescent moiety is the third fluorescent moiety of example A9.

Comparative example B1

The present comparative example provides a red light source. The red light source of this comparative example includes a light emitting unit including a chip and a phosphor provided in a light exit path of the chip, the phosphor being the phosphor provided in comparative example A1, the chip having an emission wavelength of 452nm.

Comparative example B2

The present comparative example provides a red light source. The red light source of this comparative example is substantially the same as the red light source of comparative example B1 except that the phosphor of this comparative example is the phosphor provided in comparative example A2.

Comparative example B3

The present comparative example provides a red light source. The red light source of this comparative example is substantially the same as the red light source of comparative example B1 except that the phosphor of this comparative example is the phosphor provided in comparative example A3.

TABLE 3 luminescence wavelengths of the first, second and third chips

Spectral testing of each light source:

the red light sources provided in the above examples B1 to B9 and comparative examples B1 to B3 were subjected to spectral tests, respectively.

The test results are shown in fig. 6 to 17, in which the spectral patterns of the light sources in examples B1 to B9 are shown in fig. 6 to 14, and the spectral patterns of the light sources in ratios B1 to B3 are shown in fig. 15 to 17.

As can be seen from fig. 6 to 14, in the red light generated by the red light sources provided in embodiments B1 to B9 of the present application, the peak shape is flat in a wider band around the peak, the absolute spectrum of the red light in the band is close to the maximum absolute spectrum value of the red light (for example, the optical power or the absolute relative spectrum value of the band is greater than or equal to 80% of the maximum optical power or the maximum absolute relative spectrum value), and during physical therapy, the red light in the band can generate a physical therapy effect, and the band is an effective band, and the red light generated by the red light sources provided in embodiments B1 to B9 has a wide effective band and a good physical therapy effect.

As can be seen from fig. 15 to 17, in the red light generated by the red light sources of comparative examples B1 to B3, the peak shapes before and after the peak are steep, the peak is narrow and sharp, the absolute spectral value or optical power of the red light rapidly increases with the increase of the wavelength, the absolute spectral value or optical power rapidly decreases after reaching the maximum value, the maximum absolute spectral value or optical power of the red light is greatly different from the absolute spectral values or optical powers of other wavelengths, only the spectral value or optical power in the narrow band range before and after the peak is close to the maximum absolute spectral value or optical power, during physiotherapy, only the red light in the narrow band before and after the peak can generate physiotherapy effects, and the physiotherapy effect is not good. The red light sources provided by the comparative examples B1 to B3 have narrow effective wave bands for red light physiotherapy and poor physiotherapy effect.

The foregoing is considered as illustrative only of the preferred embodiments of the invention, and is presented merely for purposes of illustration and description of the principles of the invention and is not intended to limit the scope of the invention in any way. Any modifications, equivalents and improvements made within the spirit and principles of the invention and other embodiments of the invention without the creative effort of those skilled in the art are included in the protection scope of the invention based on the explanation here.

Claims

1. The head health-care device is characterized by comprising a shell and a light source module arranged on the shell, wherein the shell is used for covering the head when the head health-care device is worn, the light source module is used for emitting light towards the head when the shell is worn, and the light source module can emit 600-700 nm continuous red light with spectral power greater than 0.7.

2. The head care device of claim 1, further comprising a pulse control device electrically connected to the light source module.

3. The head care device of claim 2, further comprising a temperature sensor disposed on the housing; the temperature sensor is electrically connected with the pulse control device and is used for detecting the temperature of one surface of the shell, which is in contact with the head, or a preset area in a space surrounded by the shell; the pulse control device is used for receiving the detection data of the temperature sensor and controlling the on-off and the current of the light source module according to the detection data of the temperature sensor.

4. The head health device according to claim 2, wherein the light source module comprises a plurality of red light sources, each of which is capable of emitting red light of 600 to 700nm; the shell comprises a plurality of functional areas, and different functional areas correspond to different parts of the head; each functional area is provided with at least one red light source, and the absolute spectral power of a 600-700 nm waveband in mixed light formed by light emitted by all the red light sources in the same functional area is greater than 0.7.

5. The head care device according to claim 4, wherein the density of said red light sources in any two of said functional areas satisfies the following relationship:

the density of the red light sources in the functional area corresponding to the head alopecia-prone part is greater than that of the red light sources in the functional area corresponding to the head alopecia-prone part;

6. The head health device according to claim 4, wherein the pulse control device is configured to output control signals corresponding to the functional regions one to one, so as to control the red light sources in each of the functional regions to blink according to a preset frequency through the control signals, so that the red light sources in any two of the functional regions satisfy the following relationship:

7. The head care device of claim 6, wherein said red light sources in any two of said functional areas satisfy the following relationship:

8. The head care device according to claim 4, wherein said pulse control means is connected in series with the light source assembly formed by all said red light sources in any one of said functional regions through resistors, so that said red light sources in any two functional regions satisfy the following relationship:

the current of the red light source in the functional area corresponding to the head hair losing part is larger than the current of the red light source in the functional area corresponding to the head hair losing part.

9. The head care device according to claim 4, wherein the red light source includes a blue chip having a peak wavelength of 440 to 475nm and a wavelength conversion element formed on a light exit side of the blue chip.

10. The head care device of claim 9, wherein said wavelength conversion element comprises a phosphor.

11. The head care device according to claim 10, wherein said fluorescent body comprises a first fluorescent moiety, a second fluorescent moiety, and a third fluorescent moiety; wherein:

the light-emitting wavelength of the fluorescent powder A is 600 nm-640 nm;

the light-emitting wavelength of the fluorescent powder B is 650 nm-660 nm;

the light-emitting wavelength of the fluorescent powder C is 670 nm-700 nm;

12. The head health device according to claim 11, wherein in the first phosphor, a mass ratio of the phosphor a, the phosphor B, and the phosphor D1 is 3 to 25:3 to 35:5 to 50 percent; and/or

In the second phosphor, the mass ratio of the phosphor C to the phosphor D2 to the phosphor E1 is 7-35: 7 to 40:10 to 50; and/or

13. The head health device according to claim 11, wherein in the first fluorescent portion, the first fluorescent powder accounts for 40% to 87% of the total mass of the first fluorescent powder and the first colloid; and/or

14. The head health device according to claim 11, wherein any one of the first fluorescent moiety, the second fluorescent moiety and the third fluorescent moiety is prepared by a press molding method; and/or

15. The head health device according to claim 11, wherein any one of the first fluorescent moiety, the second fluorescent moiety and the third fluorescent moiety is prepared by a spray method; and/or

And the thickness of any one of the first, second, and third fluorescent portions is 0.001 to 0.01mm.

16. The head health device of claim 11, wherein the red light source comprises three light emitting units:

a first light emitting unit including a first chip and the first fluorescent part disposed on an optical path of the first chip;

17. The head health device according to claim 16, wherein in the first light emitting unit, the light emitting wavelength of the first chip is 440nm to 460nm, and the first phosphor contained in the first phosphor portion has a mass ratio of the phosphor a, the phosphor B, and the phosphor D1 of 5 to 25:5 to 25: 10-40 percent of the total mass of the first fluorescent powder and the first colloid, wherein the first fluorescent powder accounts for 50-80 percent of the total mass of the first fluorescent powder and the first colloid; and/or

In the third light emitting unit, the light emitting wavelength of the third chip is 440nm to 460nm, and the mass ratio of the phosphor D3, the phosphor E2, and the phosphor F in the third phosphor included in the third phosphor portion is 12 to 35:12 to 35: 15-40 percent of the total mass of the third fluorescent powder and the third colloid, and the third fluorescent powder accounts for 50-80 percent of the total mass of the third fluorescent powder and the third colloid.

18. The head health device according to any one of claims 1 to 17, wherein the housing comprises a main body, a circuit layer and a protective layer, which are sequentially stacked from outside to inside; the light source module is arranged on the circuit layer; the protective layer is an insulating light-transmitting layer and is used for covering the circuit layer and the light source module and allowing light rays emitted by the light source module to pass through.

19. The head restraint of claim 18, wherein said body, said circuit layer and said protective layer are all flexible layers.