CN113266797A - High-beam and low-beam integrated car lamp optical element, car lamp module, car lamp and car - Google Patents
High-beam and low-beam integrated car lamp optical element, car lamp module, car lamp and car Download PDFInfo
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- CN113266797A CN113266797A CN202011280925.8A CN202011280925A CN113266797A CN 113266797 A CN113266797 A CN 113266797A CN 202011280925 A CN202011280925 A CN 202011280925A CN 113266797 A CN113266797 A CN 113266797A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
- F21S41/25—Projection lenses
- F21S41/27—Thick lenses
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2102/00—Exterior vehicle lighting devices for illuminating purposes
- F21W2102/10—Arrangement or contour of the emitted light
- F21W2102/13—Arrangement or contour of the emitted light for high-beam region or low-beam region
- F21W2102/135—Arrangement or contour of the emitted light for high-beam region or low-beam region the light having cut-off lines, i.e. clear borderlines between emitted regions and dark regions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2107/00—Use or application of lighting devices on or in particular types of vehicles
- F21W2107/10—Use or application of lighting devices on or in particular types of vehicles for land vehicles
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a vehicle lamp and discloses a high-low beam integrated vehicle lamp optical element, which comprises a low beam light inlet part, a high beam light inlet part, a first light inlet part, a second light inlet part, a third light inlet part and a lens part which are integrally formed; the low-beam light inlet part is positioned at the rear end of the first light communication part, the high-beam light inlet part is positioned at the rear end of the second light communication part, the second light communication part is positioned at the lower side of the first light communication part, the third light communication part is positioned at the front ends of the first light communication part and the second light communication part, and the lens part is positioned at the front end of the third light communication part; the first light-passing part and the second light-passing part are formed by different transparent materials, and the refractive index of the first light-passing part is larger than that of the second light-passing part. The optical element of the vehicle lamp can prevent light in the first light passing part from entering the second light passing part to form stray light, and partial light in the second light passing part can enter the first light passing part, so that the connection of far and near light shapes is improved. In addition, the invention also discloses a car lamp module, a car lamp and a vehicle.
Description
Technical Field
The invention relates to a vehicle lamp, in particular to an optical element of a high-beam and low-beam integrated vehicle lamp. The invention also relates to a car lamp module, a car lamp and a vehicle.
Background
The automobile lamps of the present automobiles show an obvious miniaturization trend, which requires that the structure of the automobile lamp module is more simplified and integrated, and the arrangement of each part in the automobile lamp module is more compact.
Chinese patent CN106439672B discloses an LED light source car lamp module, as shown in fig. 1, a low beam condenser 1 and a high beam condenser 2 are arranged up and down, the rear ends of the low beam condenser 1 and the high beam condenser 2 are respectively provided with a low beam LED circuit board 7 and a high beam LED circuit board 6, the low beam LED circuit board 7 and the high beam LED circuit board 6 are fixed on a heat sink 5, a lens 3 is installed on a lens retainer ring 4, and is fixed on the heat sink 5 through the lens retainer ring 4, thereby forming a car lamp module with a compact structure. However, the number of parts of the vehicle lamp module is still large, and the integration level of the optical element of the vehicle lamp is not high.
In order to achieve compact structure and connection of high beam and low beam, the gap between the parts in the existing vehicle lamp module is usually set to be small. In the vehicle lamp module shown in fig. 1, the low beam condenser 1 and the high beam condenser 2 are closely arranged, and the cut-off line structure of the lower boundary of the front end of the low beam condenser 1 and the cut-off line structure of the upper boundary of the front end of the high beam condenser 2 are installed in contact, and the following disadvantages are also formed: (1) as shown in fig. 2, when the high beam illumination function is used, the high and low beam light sources are turned on simultaneously, the cut-off line structure of the lower boundary of the front end of the low beam condenser 1 forms the upper boundary cut-off line 53 of the low beam profile 51, the cut-off line structure of the upper boundary of the front end of the high beam condenser 2 forms the lower boundary of the high beam profile 52, and the low beam profile 51 and the high beam profile 52 are connected by the above two boundaries. However, the light shapes are joined without overlapping transitions between the light shapes, resulting in a dark joint area 54 at the join, which may result in poor joining between the high and low beams. (2) Because the front ends of the low beam condenser 1 and the high beam condenser 2 are in contact with each other, when the vehicle runs and vibrates, the front ends of the low beam condenser 1 and the high beam condenser 2 are in contact with each other to be collided with each other to be worn or even to be dusted, so that the normal low beam shape and/or high beam shape are changed, and even the vehicle lamp module is failed because the low beam shape and/or the high beam shape do not meet the requirements of regulations.
The existing optical element for the vehicle lamp can not meet the development trend demand of miniaturization of the vehicle lamp at present, and the vehicle lamp optical element with higher integration level and better connection of far and near light shapes is urgently needed in the market.
Disclosure of Invention
The invention aims to solve the technical problem of providing a high-beam and low-beam integrated optical element for a vehicle lamp, which has high integration level and can form high-beam and low-beam light shapes which are well connected.
The invention further aims to provide a vehicle lamp module which has the advantages of simple structure, good connection of far and near light shapes and high light shape stability.
The invention further aims to provide the vehicle lamp which is small in size and good in illumination light shape.
The technical problem to be solved by the invention is to provide a vehicle, the size of the vehicle lamp is small, and the illumination light shape is good.
In order to solve the above technical problem, an aspect of the present invention provides a high-low beam integrated vehicle lamp optical element, including a low beam light incident portion, a high beam light incident portion, a first light incident portion, a second light incident portion, a third light incident portion and a lens portion which are integrally formed; the low-beam light inlet part is positioned at the rear end of the first light inlet part, the high-beam light inlet part is positioned at the rear end of the second light inlet part, the second light inlet part is positioned at the lower side of the first light inlet part, a material interface is formed between the first light inlet part and the second light inlet part, a cut-off line structure is arranged on the material interface, the third light inlet part is positioned at the front end of the first light inlet part and the front end of the second light inlet part, and the lens part is positioned at the front end of the third light inlet part; the first light-passing part and the second light-passing part are formed by different transparent materials, and the refractive index of the first light-passing part is larger than that of the second light-passing part.
Preferably, the third light-passing portion and the lens portion are molded from the same transparent material. In this preferred technical scheme, third light portion and lens portion adopt the shaping of same kind of transparent material, can avoid forming the interface between third light portion and lens portion, produce the reflection when leading to light to pass through, influence the light efficiency. In addition, the third light passing part and the lens part made of the same material are more convenient to process.
Further preferably, the first light passing portion, the third light passing portion and the lens portion are molded from the same transparent material, and the second light passing portion is molded from another transparent material; and a high beam primary light emitting surface is formed between the second light passing part and the third light passing part, and the cut-off line structure is formed at the front edge of the material interface. In this preferred technical scheme, first portion of passing light, third portion of passing light and lens portion of same kind of material have reduced the reflection when passing light of passing light, have improved the light efficiency, have also made things convenient for processing. The high-beam primary light-emitting surface between the second light-passing part and the third light-passing part is beneficial to secondary light distribution of high-beam light.
Further, the low-beam light incident portion and the first light passing portion are formed of the same transparent material, and the high-beam light incident portion and the second light passing portion are formed of the same transparent material. Through this preferred technical scheme, between passing light income light portion and the first portion of leading to light to and all there is not the interface between distance light income light portion and the second portion of leading to light, be favorable to improving the light efficiency of distance light ray.
Preferably, the low-beam light incident portion, the high-beam light incident portion, and the first light passing portion are formed of the same transparent material. In this preferred embodiment, since the structure of the incident light portion is generally complicated, the low-beam incident light portion and the high-beam incident light portion are formed of the same material, so that the processing is more convenient and the processing cost is lower.
Preferably, the low-beam incident light portion, the high-beam incident light portion, and the second light portion are formed of the same transparent material. In this preferred embodiment, the low-beam light incident portion and the high-beam light incident portion are similarly formed of the same material, which facilitates processing.
Preferably, the third light passing part is a cavity structure. Through this preferred technical scheme, the third light distribution portion of cavity structure can form the light distribution face around the cavity structure, can carry out the grading to the light that passes through this light distribution face, has increased the grading parameter. In addition, the cavity structure can also reduce the weight of the optical element of the high beam and low beam integrated vehicle lamp,
preferably, the front part of the upper side of the second light passing part is provided with a raised 50L structure, and the corresponding position of the lower side of the first light passing part is provided with a corresponding concave pit. In the preferred embodiment, the 50L structure can refract the light incident on the 50L structure, so that the light deviates from the 50L region of the low beam shape, and the brightness of the 50L region is reduced, so that the brightness of the 50L dark region of the low beam shape meets the requirements of regulations.
Preferably, the lower side of the low-beam light inlet part and the rear part of the lower side of the first light passing part are provided with zone III structures, and corresponding concave cavities are arranged at corresponding positions of the upper side of the second light passing part. According to the preferred technical scheme, part of the low-beam light guided by the low-beam light incident part can enter the III-zone structure, and is emitted out through the III-zone structure, and the low-beam III-zone light is formed after being projected by the lens part.
Preferably, the first light-passing part is molded by PC or PMMA, and the second light-passing part is molded by silicone. In the preferred technical scheme, the refractive indexes of the PC material and the PMMA material are both larger than that of the silica gel material, and the silica gel material has high temperature resistance, so that when the PC material and the PMMA material are used for being close to the light entering part of the light source, the temperature resistance of the light entering part can be improved, and the heat deformation of the light entering part is favorably reduced.
The invention provides a vehicle lamp module in a second aspect, which comprises a light source module and the high-beam and low-beam integrated vehicle lamp optical element provided by the first aspect of the invention.
A third aspect of the invention provides a vehicle lamp using the vehicle lamp module provided in the second aspect of the invention.
A fourth aspect of the invention provides a vehicle using the lamp provided in the third aspect of the invention.
According to the optical element of the high and low beam integrated vehicle lamp, the high and low beam light incident part, the high beam light incident part, the first light incident part, the second light incident part, the third light incident part and the lens part are integrated on one optical element, so that the optical element with functions of a low beam optical channel, a high beam optical channel and a lens is formed, the integration degree is higher, the positioning precision among the optical parts is higher, and the formed low beam light shape and high beam light shape are higher in stability. The optical element of the high-beam and low-beam integrated vehicle lamp has the advantages that the refractive index of the first light-passing part is larger than that of the second light-passing part, light passing through the first light-passing part can be totally reflected when being irradiated to a material interface between the first light-passing part and the second light-passing part, and all the light is reflected back to the first light-passing part, so that the optical efficiency of low beams is improved, a cut-off line structure on the material interface correspondingly forms a low-beam light and dark cut-off line, the low-beam light is prevented from entering the second light-passing part, and stray light is formed in a high-beam light shape area; when the light passing through the second light-passing part irradiates on the material interface between the first light-passing part and the second light-passing part, a part of light can enter the first light-passing part to continuously forward and transmit after being refracted by the interface, and the light irradiates on the transition area between the high beam light shape and the low beam light shape, so that the connection between the high beam light shape and the low beam light shape is improved. According to the vehicle lamp module, the high beam and low beam optical shapes can be formed only through the light source module and the high beam and low beam integrated vehicle lamp optical element, the structure is simpler, the high beam and low beam optical shapes are well connected, in addition, the positioning error between different optical elements of the traditional vehicle lamp module is avoided, the optical shape precision is better, and the stability is higher. The vehicle lamp and the vehicle of the invention also have the advantages due to the use of the vehicle lamp module and the vehicle lamp of the invention.
Other technical features and advantages of the present invention will be further described in the following detailed description.
Drawings
FIG. 1 is a schematic diagram of a conventional vehicular lamp module;
FIG. 2 is a schematic diagram of the distribution of far and near light shapes of a conventional vehicular lamp module;
FIG. 3 is a perspective view of one embodiment of the optical element of the high beam and low beam integrated vehicle lamp of the present invention;
FIG. 4 is a perspective view of another perspective of FIG. 3;
FIG. 5 is a top view of FIG. 3;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5;
FIG. 7 is a schematic diagram of the low beam path of the optical element of the high beam and low beam integrated vehicle lamp shown in FIG. 3;
FIG. 8 is a schematic view of the optical path of the high beam and low beam integrated lamp shown in FIG. 3;
FIG. 9 is a schematic view of a second light passing portion of an embodiment of the high-beam and low-beam integrated vehicular lamp optical element according to the present invention, assuming that the second light passing portion is separated from the vehicular lamp optical element, the vehicular lamp optical element is actually integrally formed and cannot be separated without damage;
FIG. 10 is a partial enlarged view of portion B of FIG. 9;
FIG. 11 is a partial structural view of an embodiment of the high beam and low beam integrated lamp optical element of the present invention, assuming that the partial structure is separated from the lamp optical element, in fact the lamp optical element is integrally formed, and it is impossible to separate it without loss;
FIG. 12 is a schematic view of a partial structure of the high beam and low beam integrated lamp optical element of the present invention corresponding to FIG. 11, assuming that the partial structure is separated from the lamp optical element, and the lamp optical element is actually integrally formed and cannot be separated without loss;
FIG. 13 is a schematic view of the optical path of the optical element III of the vehicle lamp shown in FIG. 11;
FIG. 14 is a perspective view of another embodiment of the optical element of the high beam and low beam integrated lamp of the present invention;
FIG. 15 is a top view of another embodiment of the optical element of the high beam and low beam integrated lamp of the present invention;
FIG. 16 is a cross-sectional view taken along the line C-C of FIG. 15;
FIG. 17 is a perspective view of another embodiment of the optical element of the high beam and low beam integrated lamp of the present invention;
FIG. 18 is a top view of FIG. 17;
FIG. 19 is a D-D azimuthal section of FIG. 18;
FIG. 20 is a perspective view of another embodiment of the optical element of the high beam and low beam integrated lamp of the present invention;
FIG. 21 is a top view of FIG. 20;
FIG. 22 is an E-E azimuth cross-sectional view of FIG. 21;
FIG. 23 is a schematic structural view of an embodiment of the vehicle lamp module of the present invention;
fig. 24 is a schematic diagram of the distribution of the high beam and the low beam of the embodiment of the vehicle lamp module of the present invention.
Description of the reference numerals
11 low beam light inlet part 12 high beam light inlet part
21 first light-passing part 22 second light-passing part
221 high-beam primary light-emitting surface 22250L structure
Third light passing part of 223 III area cavity 23
231 cavity 24 material interface
232 support frame 241 cut-off line structure
25 III zone structure 251 light focusing cup extension
Light-emitting surface of region 252 III of light-transmitting part 253 III
3 lens part 31 lens light-emitting surface
4 light source module 51 low beam light shape
52 high beam shape 53 cut-off line
54 dark zone 55 far and near light overlap zone
Detailed Description
In the present invention, the orientation or positional relationship indicated by the use of the orientation words such as "front, rear, upper, lower, left, and right" is based on the orientation or positional relationship after the lamp of the present invention is normally mounted on the vehicle, unless otherwise specified. Wherein the direction indicated by the directional word "front" is the normal direction of travel of the vehicle. The description of the orientation or positional relationship of the optical element for a vehicle lamp and the vehicle lamp module and parts thereof of the present invention is consistent with the mounting orientation thereof in actual use.
The terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and therefore the features defined "first", "second", "third" may explicitly or implicitly include one or more of the features described.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "disposed" or "connected" are to be construed broadly, e.g., the term "connected" may be a fixed connection, a detachable connection, or an integral connection; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, and it is to be understood that the detailed description is provided for purposes of illustration and explanation and is not intended to limit the scope of the invention.
As shown in fig. 3 to 6, an embodiment of the optical element of the high-low beam integrated vehicle lamp according to the present invention includes a low-beam light incident portion 11, a high-beam light incident portion 12, a first light incident portion 21, a second light incident portion 22, a third light incident portion 23, and a lens portion 3 which are integrally molded. The low-beam light inlet part 11 is formed at the rear end of the first light passing part 21, and low-beam light emitted by the low-beam light source can be guided through the low-beam light inlet part 11 and transmitted into the first light passing part 21; the high beam incident portion 12 is formed at the rear end of the second light communication portion 22, and the high beam light emitted from the high beam light source can be guided through the high beam incident portion 12 and transmitted to the second light communication portion 22; the second light-passing part 22 is formed at the lower side of the first light-passing part 21, and the third light-passing part 23 is formed at the front ends of the first light-passing part 21 and the second light-passing part 22, and the light rays in the first light-passing part 21 and the second light-passing part 22 can enter the third light-passing part 23; the front end of the third light passing portion 23 is integrally formed with the lens portion 3, and light in the third light passing portion 23 can be transmitted to the lens portion 3 and emitted from the lens light emitting surface 31 to form an illumination light shape, which includes a low beam shape and a high beam shape. The material interface 24 is formed by the interface between the first light-passing portion 21 and the second light-passing portion 22, the cut-off line structure 241 is disposed on the material interface 24, and the light guided by the low-beam light-entering portion 11 is blocked by the cut-off line structure 241 and then emitted from the lens portion 3, so as to form a low-beam light shape with a cut-off line. The light beam guided by the high beam incident portion 12 is emitted from the lens portion 3 to form a high beam shape. The first light-passing part 21 and the second light-passing part 22 are made of different transparent materials, and the refractive index of the first light-passing part 21 is larger than that of the second light-passing part 22, so that when low-beam light passing through the first light-passing part 21 irradiates on a material interface 24 between the first light-passing part 21 and the second light-passing part 22, total reflection can be generated and reflected back to the first light-passing part 21, the loss of the low-beam light in the first light-passing part 21 is reduced, the low-beam light effect is improved, and the low-beam light is prevented from entering the second light-passing part 22 to form stray light in a high-beam illumination area. The cut-off line structure 241 formed by the shaped material interface 24 can also correspondingly form a low beam cut-off line. However, when the high beam passing through the second light-passing portion 22 irradiates the material interface 24 between the first light-passing portion 21 and the second light-passing portion 22, total reflection does not occur, so that a part of the beam passing through the second light-passing portion 22 can enter the first light-passing portion 12 and exit through the lens light-exiting surface 31. The low-beam light incident part 11 and the high-beam light incident part 12 are provided with light incident structures, and the light incident structures can be light condensing cups or other light incident structures of which the light incident surfaces are planes, concave surfaces or convex surfaces; the low-beam light incident portion 11 and the high-beam light incident portion 12 may have the same or different light incident structures. The lens light emitting surface 31 of the lens unit 3 may be a spherical surface protruding forward, an ellipsoidal surface protruding forward, a free-form surface, or the like. The lens part 3 can function as a common lens, and can converge and project the passing light to form an illumination light shape meeting the requirements of the regulations. The optical element of the high-beam and low-beam integrated vehicle lamp can be integrally formed in an insert injection molding or double-shot injection molding mode, and can also be integrally formed in other suitable modes. As shown in fig. 7, the light emitted from the low-beam light source is guided by the low-beam light incident portion 11 and transmitted to the first light passing portion 21, a part of the low-beam light in the first light passing portion 21 is totally reflected when it irradiates the interface between the first light passing portion 21 and the second light passing portion 22, that is, the material interface 24, so that the part of the low-beam light is totally reflected back to the first light passing portion 21 and cannot enter the second light passing portion 22, the low-beam light in the first light passing portion 21 enters the third light passing portion 23 after being blocked by the cut-off structure 241, and is refracted by the lens portion 3 and projected, thereby forming a low-beam light shape 51 with a cut-off line 53 as shown in fig. 24. As shown in fig. 8, the light emitted from the high beam light source is guided by the high beam light incident portion 12 and transmitted to the second light passing portion 22, and the high beam light in the second light passing portion 22 does not generate total reflection when it irradiates on the material interface 24, and a part of the light can be refracted at the material interface 24 and enter the first light passing portion 21. The high beam in the second light passing part 22 enters the third light passing part 23 and is refracted by the lens part 3 to be projected, forming a high beam shape 52 as shown in fig. 24. The high beam light entering the first light passing portion 21 is transmitted by the third light passing portion 23 and projected to the high and low beam overlapping area 55 as shown in fig. 24 through the lens portion 3. Thus, when the low beam light source and the high beam light source emit light simultaneously, an illumination light pattern having no dark area and a good high and low beam light pattern can be formed as shown in fig. 24.
In some embodiments of the optical element of the high-beam and low-beam integrated vehicle lamp of the present invention, as shown in fig. 3 to 8, the third light passing portion 23 and the lens portion 3 are made of the same transparent material. The third light passing part 23 and the lens part 3 which are made of the same transparent material can be processed and molded at one time, and the processing is more convenient. The connecting part of the third light passing part 23 and the lens part 3 made of the same transparent material is not provided with an interface, so that light loss can not be generated due to reflection of the interface when light passes through, and the light efficiency is improved.
In some embodiments of the optical element for a high-beam and low-beam integrated vehicle lamp according to the present invention, as shown in fig. 3 to 13, the first light passing portion 21, the third light passing portion 23, and the lens portion 3 are made of the same transparent material, and the second light passing portion 22 is made of another transparent material, and the refractive index of the first transparent material is larger than that of the second transparent material. When the low beam in the first light passing part 21 is irradiated to the material boundary surface 24, total reflection can be generated, and when the high beam in the second light passing part 22 is irradiated to the material boundary surface 24, total reflection is not generated. A high beam primary light emitting surface 221 is formed between the second light passing portion 22 and the third light passing portion 23, and the high beam can be refracted when passing through the high beam primary light emitting surface 221, so that the high beam primary light emitting surface 221 can perform a light distribution function of the high beam again, that is, by adjusting the shape of the high beam primary light emitting surface 221, the light distribution of the high beam shape can be adjusted, so as to meet the requirements of the regulations. The shape of the high-beam primary light emitting surface 221 can be set according to the requirement of light distribution, and is preferably set to be a cambered surface that is concave from front to back. A line of cut-off structure 241 is formed at the leading edge of the material interface 24. The cut-off line structure 241 may be formed by the material interface 24 being shaped to correspond to the cut-off line.
As a specific embodiment of the optical element of the high-low beam integrated lamp according to the present invention, as shown in fig. 3 to 6, the low-beam light incident portion 11, the first light incident portion 21, the third light incident portion 23, and the lens portion 3 are made of the same transparent material, and the high-beam light incident portion 12 and the second light incident portion 22 are made of another transparent material. Thus, the low-beam passage composed of the low-beam light incident portion 11, the first light passing portion 21, the third light passing portion 23 and the lens portion 3 is made of the same transparent material, reflection formed by an interface without the material in the low-beam passage is avoided, and the light efficiency of the low beam is higher. In the high beam path composed of the high beam incident portion 12, the second beam incident portion 22, the third beam incident portion 23 and the lens portion 3, the high beam incident portion 12 and the second beam incident portion 22 are made of the same transparent material, the third beam incident portion 23 and the lens portion 3 are made of another transparent material, and only the high beam primary light exit surface 221 between the second beam incident portion 22 and the third beam incident portion 23 exists in the high beam path. The high-beam primary light exit surface 221 is an interface of two different transparent materials, and since the refractive index of the second light passing portion 22 is smaller than that of the third light passing portion 23, the high-beam light entering the third light passing portion 23 from the second light passing portion 22 will not be totally reflected, but can be refracted. Thus, the high-beam primary light emitting surface 221 can perform the function of redistributing the high-beam light pattern.
As one embodiment of the optical element of the high-low beam integrated lamp according to the present invention, as shown in fig. 17 to 19, the low-beam light entering portion 11, the high-beam light entering portion 12, the first light passing portion 21, the third light passing portion 23, and the lens portion 3 are made of the same transparent material, and the second light passing portion 22 is made of another transparent material. Thus, the whole optical element of the vehicle lamp is made of the same transparent material except the second light-passing portion 22, the second light-passing portion 22 is made of another transparent material, and the structure of the second light-passing portion 22 is simpler, the processing of the optical element of the vehicle lamp is more convenient, and the processing cost is lower. The interface between the high beam light incident portion 12 and the second through light portion 22 may be disposed as a plane perpendicular to the direction of the high beam light passage to reduce reflection of the high beam light passing therethrough. The light source can also be set to be a specific curved surface so as to correspondingly adjust the passing light and improve the uniformity of the light.
As another embodiment of the optical element of the high-low beam integrated lamp according to the present invention, as shown in fig. 20 to 22, the low-beam light entering portion 11, the high-beam light entering portion 12, and the second light entering portion 22 are made of the same transparent material, and the first light passing portion 21, the third light passing portion 23, and the lens portion 3 are made of another transparent material. The interface between the low beam light inlet part 11 and the first light passing part 21 can be set to be a plane perpendicular to the direction of the low beam light channel to reduce the reflection when the low beam light passes through, and can also be set to be a specific curved surface to correspondingly adjust the passing light, thereby improving the uniformity of the light. Since the structures of the low-beam light inlet portion 11 and the high-beam light inlet portion 12 are generally complex, the low-beam light inlet portion 11 and the high-beam light inlet portion 12 made of the same transparent material can be formed by injection molding at one time, so that the processing of the optical element of the vehicle lamp is more convenient.
In some embodiments of the optical element for a high beam and low beam integrated lamp according to the present invention, as shown in fig. 14 to 16, the third light passing portion 23 has a cavity structure. The cavity structure may be configured as a blind-hole-shaped cavity area 231 below the third light passing part 23, a support frame 232 formed between the first and second light passing parts 21 and 22 and the lens part 3 is formed at both sides of the cavity area 231, and a support frame 232 formed between the first light passing part 21 and the lens part 3 is also formed at the top of the cavity area 231. The cavity structure may also be a cavity area 231 which is located in the middle of the third light passing part 23 and is through up and down, and support frames 232 formed between the first light passing part 21 and the second light passing part 22 and the lens part 3 are located at two sides of the cavity area 231. Light distribution surfaces capable of adjusting light shape distribution are formed between the rear end of the cavity area 231 and the first light-passing part 21 and the second light-passing part 22 and between the front end of the cavity area 231 and the lens part 3, and light distribution parameters of the optical element of the vehicle lamp are increased. Meanwhile, the existence of the cavity area 231 can also save raw materials for manufacturing the optical element of the car lamp and reduce the weight of the optical element of the car lamp.
In some embodiments of the optical element of the high-beam and low-beam integrated vehicle lamp according to the present invention, as shown in fig. 9 and 10, the front end of the upper side of the second light passing portion 22 is provided with a convex 50L structure 222, and the 50L structure 222 may be formed of the same material as the second light passing portion 22, and a dimple corresponding to the shape of the 50L structure 222 is provided at a position corresponding to the 50L structure 222 on the lower side of the first light passing portion 21. The 50L structures 222 are in close contact with the corresponding dimples, and when passing through the first light passing portion 21, the 50L structures 222 can refract passing light, so that the light deviates from a 50L area in the passing light shape, the brightness of the 50L area is reduced, and the brightness of a 50L dark area of the passing light shape meets the requirements of regulations.
In some embodiments of the high and low beam integrated lamp optical element of the present invention, as shown in fig. 11 to 13, the rear portion of the lower side of the low beam light entrance portion 11 and the first light passage portion 21 is provided with the iii-zone structure 25. Specifically, the low-beam light incident portion 11 is provided with a low-beam light condensing cup, a lower portion of the low-beam light condensing cup extends forward to form a light condensing cup extension portion 251, a rear portion of a lower side of the first light passing portion 21 is provided with a iii-zone light passing portion 252 connected to the light condensing cup extension portion 251, and a front end of the iii-zone light passing portion 252 is formed as a iii-zone light emitting surface 253. The upper side of the second light passing part 22 is provided with a zone iii cavity 223 corresponding to the outer shape of the zone iii structure 25 at a position corresponding to the zone iii structure 25. When the low-beam light is guided from the low-beam light-gathering cup, part of the low-beam light enters the iii-zone light-passing portion 252 through the light-gathering cup extension portion 251, and is emitted from the iii-zone light-emitting surface 253, enters the inside of the second light-passing portion 22, passes through the high-beam primary light-emitting surface 221, the third light-passing portion 23 and the lens portion 3, and is emitted from the lens light-emitting surface 31, so as to form the low-beam iii-zone light for illuminating the road sign.
As one embodiment of the optical element of the high-beam and low-beam integrated vehicle lamp according to the present invention, the first light-passing portion 21 is made of a PC material or a PMMA material, and the second light-passing portion 22 is made of a silicone material. The refractive indexes of the PC and the PMMA are larger than that of the silica gel, total reflection can be generated when light transmitted in the PC or the PMMA irradiates an interface between the PC and the silica gel or the interface between the PMMA and the silica gel, and total reflection cannot be generated when the light transmitted in the silica gel irradiates the interface between the PC and the silica gel or the interface between the PMMA and the silica gel. And the silica gel has better temperature resistance and can better resist higher temperature generated by a light source.
As shown in fig. 23, in the embodiment of the vehicle lamp module of the present invention, the optical structure of the optical structure only includes the light source module 4 and the high beam and low beam integrated vehicle lamp optical element of any embodiment of the present invention, and the structure of the module is simpler. The light source module 4 is provided with the low-beam light sources with the same number of light entrance structures as the low-beam light entrance part 11, and light emitted by the low-beam light sources can be transmitted and projected through the optical elements of the high-beam and low-beam integrated vehicle lamp to form a low-beam light shape 51 as shown in fig. 24. The light source module 4 is provided with the same number of high beam light sources as the light entrance structures on the high beam light entrance part 12, and light emitted by the high beam light sources can be transmitted and projected through the optical elements of the high beam and low beam integrated vehicle lamp to form a high beam shape 52 as shown in fig. 24. The low beam light source and the high beam light source on the light source module 4 can be controlled separately, and when the low beam light source is turned on alone, the low beam light pattern 51 formed can be used for low beam illumination of the vehicle; when the low beam light source and the high beam light source on the light source module 4 are simultaneously turned on, the low beam light pattern 51 and the high beam light pattern 52 are combined with each other to form a light pattern for high beam illumination of the vehicle as shown in fig. 24. Due to the adoption of the high-low beam integrated vehicle lamp optical element, the positioning accuracy of a high-low beam channel and a high-low beam channel is higher, the stability of the low-low beam shape 51 and the high-low beam shape 52 is higher, a high-low beam overlapping area 55 can be formed between the low-low beam shape 51 and the high-low beam shape 52, a joint dark area between the low-low beam shape 51 and the high-low beam shape 52 is avoided, the joint between the low-low beam shape 51 and the high-low beam shape 52 is good, and the lighting effect is better.
The high-low beam integrated vehicle lamp optical element integrates the low beam light inlet part 11, the high beam light inlet part 12, the first light inlet part 21, the second light inlet part 22, the third light inlet part 23 and the lens part 3 into a whole, and has higher integration level and higher positioning precision and stability of a high-low beam channel. The refractive index of the first light-passing part 21 is greater than that of the second light-passing part 22, so that the low-beam light passing through the first light-passing part 21 can generate total reflection when irradiating on the material interface 24 between the first light-passing part 21 and the second light-passing part 22, the light efficiency of the low beam is improved, a low-beam cut-off line can be formed through a cut-off line structure 241 on the material interface 24, and the low-beam light can be prevented from entering a high-beam channel to form stray light; when the high beam light passing through the second light communication part 22 irradiates on the interface between the first light communication part 21 and the second light communication part 22, the high beam light can be refracted to enter the first light communication part 21 and projected to the high and low beam overlapping area 55 between the low beam light shape and the high beam light shape through the lens part 3, and the defect that a joint dark area exists between the traditional high and low beam light shapes is overcome. In the preferred embodiment of the optical element of the high-beam and low-beam integrated vehicle lamp, the light inlet part formed by the silica gel material has better temperature resistance, and can prevent the light inlet part from deforming under the higher temperature environment generated by the light source when working. The third light-passing portion 23 of the cavity structure can increase the light distribution parameters of the optical element of the high beam and low beam integrated vehicle lamp of the invention. The arrangement of the 50L structure and the III region structure increases the functions of the optical element of the high-beam and low-beam integrated vehicle lamp, and further improves the integration level of the optical element of the high-beam and low-beam integrated vehicle lamp. The car lamp module is simpler in structure, smaller in size, more stable in light shape and better in lighting effect.
The vehicle lamp and the vehicle of the invention respectively use the vehicle lamp module and the vehicle lamp of any embodiment of the invention, and have the advantages.
In the description of the present invention, reference to the description of "one embodiment," "some embodiments," "a specific implementation," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In the present disclosure, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the specific features in any suitable way, and the invention will not be further described in relation to the various possible combinations in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.
Claims (13)
1. The optical element of the high beam and low beam integrated vehicle lamp is characterized by comprising a low beam light inlet part (11), a high beam light inlet part (12), a first light inlet part (21), a second light inlet part (22), a third light inlet part (23) and a lens part (3) which are integrally formed; the low-beam light inlet part (11) is located at the rear end of the first light inlet part (21), the high-beam light inlet part (12) is located at the rear end of the second light inlet part (22), the second light inlet part (22) is located at the lower side of the first light inlet part (21), a material interface (24) is formed between the first light inlet part (21) and the second light inlet part (22), a cut-off line structure (241) is arranged on the material interface (24), the third light inlet part (23) is located at the front ends of the first light inlet part (21) and the second light inlet part (22), and the lens part (3) is located at the front end of the third light inlet part (23); the first light-passing portion (21) and the second light-passing portion (22) are molded from different transparent materials, and the refractive index of the first light-passing portion (21) is greater than the refractive index of the second light-passing portion (22).
2. The optical element for a high-beam and low-beam integrated vehicle lamp according to claim 1, wherein the third light passing portion (23) and the lens portion (3) are molded from the same transparent material.
3. The high-beam and low-beam integrated vehicular lamp optical element according to claim 2, wherein the first light-passing portion (21), the third light-passing portion (23) and the lens portion (3) are molded from the same transparent material, and the second light-passing portion (22) is molded from another transparent material; a high-beam primary light-emitting surface (221) is formed between the second light-passing part (22) and the third light-passing part (23), and the cut-off line structure (241) is formed at the front edge of the material interface (24).
4. The optical element of a high-beam and low-beam integrated vehicle lamp according to claim 3, wherein the low-beam light incident portion (11) and the first light passing portion (21) are molded from the same transparent material, and the high-beam light incident portion (12) and the second light passing portion (22) are molded from the same transparent material.
5. The optical element of a high beam and low beam integrated lamp according to claim 3, wherein the low beam light entering portion (11), the high beam light entering portion (12) and the first light passing portion (21) are molded from the same transparent material.
6. The optical element for a high-beam and low-beam integrated vehicle lamp according to claim 3, wherein the low-beam light incident portion (11), the high-beam light incident portion (12), and the second light incident portion (22) are molded from the same transparent material.
7. The high-beam and low-beam integrated vehicular lamp optical element according to claim 1, wherein the third light passing portion (23) has a cavity structure.
8. A high beam and low beam integrated vehicle lamp optical element according to any one of claims 1-7, wherein the front part of the upper side of the second light passing portion (22) is provided with a raised 50L structure (222), and the corresponding position of the lower side of the first light passing portion (21) is provided with a corresponding dimple.
9. A high beam and low beam integrated vehicle lamp optical element according to any one of claims 1-7, characterized in that the lower side of the low beam light inlet portion (11) and the rear portion of the lower side of the first light passing portion (21) are provided with zone iii structures (25), and the corresponding positions of the upper side of the second light passing portion (21) are provided with corresponding cavities.
10. The high-beam and low-beam integrated vehicular lamp optical element according to any one of claims 1 to 7, wherein the first light-passing portion (21) is molded from PC or PMMA, and the second light-passing portion (22) is molded from silicone rubber.
11. A vehicle lamp module comprising a light source module (4) and the high beam and low beam integrated vehicle lamp optical element according to any one of claims 1 to 10.
12. A vehicular lamp characterized by comprising the vehicular lamp module according to claim 11.
13. A vehicle characterized by comprising the lamp according to claim 12.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011280925.8A CN113266797A (en) | 2020-11-16 | 2020-11-16 | High-beam and low-beam integrated car lamp optical element, car lamp module, car lamp and car |
| PCT/CN2021/095822 WO2022100058A1 (en) | 2020-11-16 | 2021-05-25 | Vehicle lamp optical element having integrated high and low beams, vehicle lamp module, vehicle lamp, and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011280925.8A CN113266797A (en) | 2020-11-16 | 2020-11-16 | High-beam and low-beam integrated car lamp optical element, car lamp module, car lamp and car |
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| CN113266797A true CN113266797A (en) | 2021-08-17 |
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| CN202011280925.8A Pending CN113266797A (en) | 2020-11-16 | 2020-11-16 | High-beam and low-beam integrated car lamp optical element, car lamp module, car lamp and car |
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| CN (1) | CN113266797A (en) |
| WO (1) | WO2022100058A1 (en) |
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| WO2023097459A1 (en) * | 2021-11-30 | 2023-06-08 | 华域视觉科技(上海)有限公司 | High-beam and low-beam integrated vehicle lamp optical element, and vehicle lamp module and vehicle |
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| DE102022101926A1 (en) | 2022-01-27 | 2023-07-27 | Marelli Automotive Lighting Reutlingen (Germany) GmbH | Process for the production of a solid optics body from a solid, transparent material with an optically effective layer |
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| WO2022100058A1 (en) | 2022-05-19 |
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