CN217382673U - Wide-range lighting device suitable for animals and plants - Google Patents

Abstract

The utility model relates to a wide-range lighting device suitable for animals and plants, comprising: a light source installation assembly, which includes a lamp frame, the lamp frame has a plurality of installation bars for installing the light source; and a light source supply assembly, which is arranged on the installation bar , including an LED light source array composed of a plurality of LED light sources, and the LED light source array includes: a first LED light source array, which is arranged on the bottom surface of the mounting bar in a manner opposite to the object to be illuminated; a second LED light source array, which is opposite to The first LED light source array is arranged on both sides of the mounting bar; wherein, the first LED light source array is configured with a light homogenizer which is arranged opposite to the LED light source and includes a plurality of light transmission regions with different light transmittances.

Description

A wide-range lighting device suitable for animals and plants

technical field

The utility model relates to the technical field of lighting devices, in particular to a wide-range lighting device suitable for animals and plants.

Background technique

Due to factors such as seasonal changes or climatic instability, plants often do not receive sufficient and continuous natural light. In recent years, in the field of agriculture, in order to allow plants to receive light stably to accumulate organic matter through, for example, photosynthesis and thereby grow, a greenhouse cultivation method for plant cultivation using artificial simulated light has been widely recognized and used in the industry, and in particular, has been It is known that the use of red light and blue light can promote the flowering and fruiting of plants or the growth of stems and leaves.

Compared with traditional light sources, LED is a kind of semiconductor solid-state electric light source with the advantages of energy saving, environmental protection, small size, long service life and strong durability. In addition, it also has some unique advantages that can be applied in plant cultivation, for example, the cold light source and spectrum can be adjusted according to the actual planting needs, and the intelligent control of light can be realized. Since the LED light source can intelligently adjust and control the light of the cultivation environment according to the actual needs, in general, it can manage and control the light environment in terms of the duration and degree of illumination, light quality and light intensity.

CN209749235U discloses an intelligent plant growth lighting device, which includes a frame, an electric lifting mechanism and a lamp frame. A planting plate is arranged at the bottom of the frame, a plurality of vegetable planting holes are opened in the planting plate, and a plurality of LED plant lighting lamps are installed on the lamp frame. , the light-emitting surface of the LED plant lighting lamp is attached with a convex lens, a reference frame is set outside any vegetable planting hole, the vegetable planting hole is located in the reference frame, and a camera and a measuring device are set on the lamp frame at the position facing the reference frame. A distance sensor; the lighting device further includes an MCU controller for controlling the electric lifting mechanism, and the camera and the ranging sensor are all electrically connected to the MCU controller.

For plant factories or vertical cultivation racks that cultivate plants, most of them use fewer fixed light sources, and for the growth of most plants, traditional LED light sources are usually direct-type light sources. It is widely used in plant cultivation. However, the light emission of traditional LED light sources is not uniform, especially based on the characteristics of optical structure, it cannot effectively provide high-density and uniform light intensity distribution to meet the growth needs of plants. Therefore, the prior art still has at least one or more technical problems to be solved urgently.

In addition, on the one hand, there are differences in the understanding of those skilled in the art; on the other hand, because the applicant has studied a large number of documents and patents when making the present utility model, but the space limit does not list all the details and contents in detail. The present invention does not have the features of the prior art, on the contrary, the present invention already possesses all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art.

Utility model content

Aiming at the deficiencies of the prior art, the present invention provides a wide-range lighting device suitable for animals and plants, aiming to solve at least one or more technical problems existing in the prior art.

In order to achieve the above purpose, the present utility model provides a wide-range lighting device suitable for animals and plants, including:

a light source installation assembly, which includes a light stand, the light stand has a plurality of mounting bars for installing the light source;

The light source supply assembly, which is arranged on the mounting bar, includes an LED light source array composed of a plurality of LED light sources, and the LED light source array includes:

a first LED light source array, which is arranged on the bottom surface of the mounting bar in a manner opposite to the object to be irradiated;

The second LED light source array is disposed on both sides of the mounting bar relative to the first LED light source array;

Wherein, the first LED light source array is configured with a light homogenizer which is arranged opposite to the LED light sources and includes a plurality of light transmission regions with different light transmittances.

Preferably, the light homogenizer has a plurality of light-transmitting regions which are sequentially arranged along the middle of the light-transmitting region and the light transmittance is increasing.

Preferably, the plurality of light-transmitting regions of the light homogenizer are configured with sawtooth, and each light-transmitting region has different serration arrangement densities.

Preferably, the arrangement density of the sawtooth of each light-transmitting area of the light homogenizer increases sequentially along the middle of the light homogenizer toward the outside.

Preferably, the light homogenizer has a light shielding structure, and the light shielding structure is composed of a plurality of light shielding layers with different lamination degrees, wherein the coverage of each light shielding layer corresponding to the light transmission area decreases along the lamination direction away from the light homogenizer.

Preferably, the illuminating device of the present invention further includes a reflective member, and the reflective member is disposed between adjacent second LED light source arrays in a manner of reflecting the light emitted by the second LED light source arrays.

Preferably, the reflective member has a prismatic structure, wherein the reflective member has reflective surfaces respectively opposite to the second LED light source arrays on both sides and arranged at a predetermined angle with respect to the horizontal reference plane.

Preferably, a heat pipe extending in the longitudinal direction of the mounting bar is arranged inside.

Preferably, the bottom of the light frame is provided with a diffuser plate and a brightness enhancement film that are stacked on each other, and the diffuser plate is arranged on top of the brightness enhancement film relative to the first LED light source array.

Preferably, the lighting device of the present invention further comprises a top plate opposite to the diffuser plate and the brightness enhancement film, the top plate is arranged at the top opening of the light frame, and the mounting strip for installing the light source is arranged on the bottom surface of the top plate.

The beneficial technical effects of the utility model include: the utility model is constructed with LED light source arrays with different light exit directions, which can be used to make up for the blind area of illumination or the dark area of mixed light that directly illuminates the light, so as to improve the uniform coverage of the light, thereby improving the The uniform illumination effect of illumination, in addition, based on the optical characteristics, considering the difference in the light intensity distribution of the direct illumination light due to the light distance, a light homogenizer is arranged in the first LED light source array for direct illumination, and a sawtooth is constructed in the light homogenizer Or the light-shielding structure is laminated to form a plurality of light-transmitting regions with different light transmittances, so that when a plurality of light beams with different initial light intensities from different directions are emitted through the light homogenizer, they can be almost relative to each other. The state with the same intensity of light is irradiated to the target area or the target object, so as to be better satisfied with the natural growth form of animals and plants, so that it has an excellent shape and performance state.

Description of drawings

1 is a schematic structural diagram of a lighting device according to a preferred embodiment provided by the present invention;

Fig. 2 is the partial structure schematic diagram of the top plate of a preferred embodiment provided by the present utility model;

FIG. 3 is a schematic structural diagram of a light homogenizer according to a preferred embodiment of the present invention.

List of reference signs

1: Lamp stand; 2: Top plate; 3: Diffuser plate; 4: Brightness enhancement film; 5: Reflector; 6: Mounting strip; 7: Heat pipe; 8: LED light source; 9: Homogenizer; 100: First transparent light area; 110: second light transmission area; 120: third light transmission area; 200: sawtooth; 201: first tooth pitch; 202: second tooth pitch; 203: third tooth pitch.

Detailed ways

The following detailed description is given in conjunction with the accompanying drawings.

The utility model provides a wide-range lighting device suitable for animals and plants, which can include:

The light source installation component can be configured in the plant factory or on the plant cultivation rack to install and fix the light source supply component;

The light source supply assembly, including at least one LED light source 8, can be used to provide illumination.

According to a preferred embodiment, as shown in FIG. 1 , the light source mounting assembly may include a lamp holder 1 . The light frame 1 is an open rectangular frame body, which can be installed on the top ceiling of a cultivation greenhouse, or installed on the bottom plates of each cultivation layer of a plant cultivation rack or an animal cultivation rack, for example. Further, as shown in FIG. 1 , the opening of the lamp holder 1 can be provided with a top plate 2 , and the top plate 2 can block the opening of the lamp holder 1 .

According to a preferred embodiment, as shown in FIG. 1 , the bottom surface of the top plate 2 can be used to install a plurality of LED light sources 8 . Specifically, a plurality of mounting bars 6 are arranged in the clearance of the bottom surface of the top plate 2 , and each mounting bar 6 may be a substantially rectangular hollow bar body. Further, as shown in FIG. 1 , each mounting bar 6 may be installed with a heat pipe 7 extending along its axial direction. In particular, a heat pipe 7 is installed in the mounting bar 6 , so that the entire mounting bar 6 constitutes a heat dissipation structure of the LED light source 8 .

According to a preferred embodiment, multiple rows of LED light sources 8 are arranged on the outer side of the mounting bar 6 . Specifically, as shown in FIG. 1 , corresponding to each side surface of the mounting bar 6 , the LED light sources 8 arranged on the outer side of the mounting bar 6 include a first LED light source array arranged vertically to the object to be illuminated, and a first LED light source array arranged on the mounting bar respectively. 6 The second LED light source arrays on both sides in the lateral direction. In particular, the illumination angles of the first LED light source array and the second LED light source array are different, and are substantially perpendicular to each other. Preferably, each LED light source array can be composed of a plurality of LED light sources 8 arranged with gaps along the extending direction of the mounting bar 6 .

According to a preferred embodiment, the first LED light source array is used to provide illumination to an almost directly facing object to be illuminated. The second LED light source array is arranged on both sides of the first LED light source array, and the illumination angle of the second LED light source array is different from that of the first LED light source array, so as to compensate for the blind spot or dark illumination of the first LED light source array The light intensity at the area is missing. Specifically, as shown in FIG. 1 , a reflector 5 can be installed on the bottom surface of the top plate 2 , and the reflector 5 is preferably arranged between adjacent mounting bars 6 . In other words, the mounting bars 6 equipped with the LED light source array and the The reflectors 5 are alternately arranged on the top plate 2 .

According to a preferred embodiment, as shown in FIG. 2 , the reflector 5 may be a prismatic structure, preferably a triangular prismatic structure. Further, the triangular prism is configured in such a manner that the two reflective surfaces correspond to the second LED light source arrays on both sides respectively, so as to receive the emitted light from the second LED light source arrays. In particular, the two light-reflecting surfaces of the light-reflecting member 5 are inclined with respect to the horizontal reference plane, or are arranged in a manner of having a predetermined included angle. The inclined angle of the reflective surface of the reflective member 5 may be, for example, 15° or 30°.

According to a preferred embodiment, when the outgoing light from the second LED light source array strikes the reflective surface of the reflective member 5 in an approximately horizontal direction, the reflective member 5 reflects the outgoing light provided by the second LED light source array to the reflective surface as shown in the figure. The illumination blind area or the illumination dark area of the adjacent first LED light source arrays that provide illumination at a direct angle as shown in 1 is used to make up for the lack of illumination intensity of the directly illuminated first LED light source arrays for part of the illumination area.

In particular, based on the performance parameters of the selected LED light sources 8 in the directly illuminated first LED light source array, the irradiation area/area that can be covered by the first LED light source array can be determined. The configuration gap of the first LED light source array and the height relative to the object to be irradiated meet the irradiation requirements. Further, under the condition that the illumination state of the first LED light source array is determined, there is still an illumination blind area or a mixed light dark area in the adjacent first LED light source array. The reflection of the outgoing light can make up for the lack of light intensity in the blind area or the dark area of mixed light.

According to a preferred embodiment, the difference between the reflective surface of the reflective member 5 configured in the prismatic structure and the reflective surface of the second LED light source array can be determined based on the actual area of the illumination blind area or the light mixing dark area of the adjacent first LED light source array. The angle between the outgoing light rays relative to each other, so as to adjust the angle at which most of the outgoing light of the second LED light source array is reflected to the illumination blind area or the mixed light dark area of the adjacent first LED light source array, so as to control the supplementary illumination. The luminous flux in the blind area or in the dark area of mixed light.

According to a preferred embodiment, whether it is the first LED light source array that directly provides illumination to the object to be illuminated in a direct form, or the second LED light source array that indirectly provides illumination to the object to be illuminated through the reflection of the reflective member 5, The luminous flux finally provided to the object to be irradiated has non-uniformity. For plants, this non-uniformity cannot adapt to the irregular morphology of plant growth, especially most plant growth has phototaxis, and the difference in light intensity distribution is extremely high. To a large extent, the final growth form of the plant will have a strong specificity, which is unfavorable for the appearance of the plant and the generation and accumulation of organic matter in each growth part. The parts are dull in color and even the stems and leaves are fragile and easily broken; and for animals, the growth and daily activities of most animals also require suitable light, and uneven light intensity distribution will lead to animals in the same breeding area. The actual amount of effective light that can be received varies, so that animals that receive sufficient and uniform light are more active, while animals that lack or are unevenly distributed may perform better. Exhausted and sluggish activity state will even affect the growth and development of animal limbs and organs in the long run. Therefore, it is extremely necessary to provide a uniform and reasonable light intensity distribution to meet the growth needs of plants and even animals.

According to a preferred embodiment, as shown in FIG. 3, the present invention provides a light homogenizer 9, and the light homogenizer 9 can be arranged on the opposite side of the LED light source 8 for receiving the light L, so as to provide almost Uniform light intensity distribution. Specifically, the light homogenizer 9 can be, for example, a lens, and in the present invention, the light homogenizer 9 is preferably arranged on the opposite side of the first LED light source array to receive the light L emitted by the LED light source 8 . The homogenizer 9 can be a circular or square lens structure. In particular, when a light homogenizer 9 is disposed on the opposite side of each LED light source 8 of the first LED light source array, or on the outgoing direction of the light L provided by each LED light source 8, the light passing through different areas of the light homogenizer 9 is transmitted through the light homogenizer 9. The outgoing ray L ₁ , the outgoing ray L ₂ and the outgoing ray L ₃ from different directions have almost the same luminous flux.

According to a preferred embodiment, based on the optical characteristics, for the same LED light source 8, the light L emitted from the middle has a short light distance relative to the target area, and in addition, the refraction of the interfering medium (such as air) during the light transmission process, Diffuse reflection effects, etc., compared with the light L emitted from both sides of the LED light source 8, the actual luminous flux provided to the target area by the light L emitted vertically from the central area of the LED light source 8 is higher, that is, the closer to the center of the LED light source 8, The greater the intensity of the light L, the smaller the vice versa.

According to a preferred embodiment, different light-transmitting regions of the light homogenizer 9 may have light-transmitting structures with different light transmittances, so that multiple light rays L with different light paths pass through the different light-transmitting regions of the light homogenizer 9 . Afterwards, the outgoing light ray L ₁ , the outgoing light ray L ₂ and the outgoing light ray L ₃ with almost equal luminous fluxes are formed. Specifically, as shown in FIG. 3 , the light homogenizer 9 has a first light transmission area 100 , a second light transmission area 110 and a third light transmission area 120 which are sequentially arranged along the middle of the light to the outside.

According to a preferred embodiment, as shown in FIG. 3 , the first transparent area 100 is located at the center of the light homogenizer 9 , the second transparent area 110 is disposed outside the first transparent area 100 , and the third transparent area 120 It is disposed outside the second light-transmitting area 110 . It should be understood that the number of light-transmitting regions here should not be construed as a limitation on the structure of the present invention, and the actual number of light-transmitting regions can be changed according to the usage scenarios.

According to a preferred embodiment, when the light L emitted by the LED light source 8 is irradiated to a target area, such as a plant growth part, the intensities of the light L from different light paths are different, and the difference in the light intensity, for example, will lead to The luminous flux that can be received at the edge of the plant is less or lower than that in the middle area. Therefore, it is necessary to provide uniform light intensity in all directions to adapt to the irregular growth form of the plant.

According to a preferred embodiment, in the present invention, the light transmittances of the first light transmission area 100 , the second light transmission area 110 and the third light transmission area 120 of the light homogenizer 9 can be sequentially increased, in other words, The light transmittance of the first light transmission area 100 is lower than that of the second light transmission area 110 , and the light transmittance of the second light transmission area 110 is lower than that of the third light transmission area 120 .

Specifically, as shown in FIG. 3 , the first transparent area 100 , the second transparent area 110 and the third transparent area 120 are all configured with saw teeth 200 . Further, the difference in light transmittance between the first light transmission area 100 , the second light transmission area 110 and the third light transmission area 120 is adjusted by adjusting the first light transmission area 100 , the second light transmission area 110 and the third light transmission area 120 by means of the tooth pitch of the saw teeth 200 in their respective regions. In particular, the adjacent saw teeth 200 in the first light-transmitting area 100 are arranged with a first tooth spacing 201 relative to each other. Adjacent saw teeth 200 in the second light-transmitting area 110 are arranged with a second tooth spacing 202 relative to each other. Adjacent saw teeth 200 in the third light-transmitting area 120 are arranged with a third tooth pitch 203 relative to each other.

According to a preferred embodiment, as shown in FIG. 3 , in the present invention, the first tooth spacing 201 , the second tooth spacing 202 , and the third tooth spacing 203 increase in sequence, in other words, the first light-transmitting area 100 The arrangement density of sawtooth is the highest, and the arrangement density of sawtooth gradually decreases from the first light-transmitting area 100 to the outer second light-transmitting area 110 and the third light-transmitting area 120 . Preferably, when the arrangement density of the sawtooth is higher, the frequency of reflection or refraction of the light L therebetween increases, so the light intensity of the corresponding outgoing light is attenuated more severely. The arrangement density is the highest, and the arrangement density of the sawtooth in the third transparent area 120 is the lowest. At the same time, the initial light intensity of the light L received by the first transparent area 100 is larger because it is closer to the light source, and the third transparent area 120 is smaller because it is farther away from the light source. Therefore, according to the initial light intensity difference of the light L passing through the first transparent area 100 and the third transparent area 120 respectively, by adjusting the sawtooth in the corresponding transparent area The tooth spacing of 200 makes the intensity of the final emitted light tend to be consistent.

According to a preferred embodiment, since the light transmittances of the first light transmission area 100 , the second light transmission area 110 and the third light transmission area 120 of the light homogenizer 9 are sequentially increased, when the light L irradiates and penetrates the first light transmission area respectively After the transparent area 100, the second transparent area 110 and the third transparent area 120, the outgoing light L ₁ , the outgoing light L ₂ and the outgoing light L ₃ are respectively generated, and the outgoing light L ₁ , the outgoing light L ₂ and the outgoing light The respective light intensity attenuation degrees of the light rays L ₃ gradually decrease. Therefore, when the light rays L emitted by the LED light sources 8 in the first LED light source array pass through the light homogenizer 9 and irradiate to, for example, plants, the light distributed throughout the plants The intensities are approximately equal.

According to a preferred embodiment, in order to make the outgoing light ray L ₁ , the outgoing light ray L ₂ and the outgoing light ray L ₃ passing through the first light-transmitting area 100 , the second light-transmitting area 110 and the third light-transmitting area 120 have almost For the purpose of equal luminous flux, in addition to changing the light-transmitting structure of each light-transmitting area, different light-shielding layers ( not shown in the figure). Specifically, for example, a first light-shielding layer formed of a first light-shielding material may be coated and covered to the first light-transmitting region 100 , the second light-transmitting region 110 , and the third light-transmitting region 120 . A second light-shielding layer formed of a second light-shielding material is coated on the first light-shielding layer and covers the first light-transmitting area 100 and the second light-transmitting area 110 . A third light-shielding layer formed of a third light-shielding material is coated on the second light-shielding layer and covers only the first light-transmitting area 100 . The first light-shielding layer, the second light-shielding layer and the third light-shielding layer are stacked in sequence to form a stepped structure. In particular, the first light-shielding material, the second light-shielding material and the third light-shielding material may be the same or different depending on the actual usage. Preferably, the light shielding layer may be a film structure formed by printing, vapor deposition or the like.

According to a preferred embodiment, when light rays L from different directions pass through at least one of the first light-shielding layer, the second light-shielding layer and the third light-shielding layer with different coverage of the light-transmitting area, the light-shielding material causes the The difference in the shading rate of the first light-transmitting area 100, the second light-transmitting area 110, and the third light-transmitting area 120 may show a sequential increase Thus, the luminous fluxes corresponding to the outgoing light ray L ₁ , the outgoing light ray L ₂ and the outgoing light ray L ₃ passing through the first light-transmitting area 100 , the second light-transmitting area 110 and the third light-transmitting area 120 respectively can be almost equal. .

According to a preferred embodiment, based on the difference in transmittance of the first light-transmitting area 100, the second light-transmitting area 110 and the third light-transmitting area 120, the wavelength of the light L exiting through each light-transmitting area can also be formed. In other words, the respective wavelengths of the outgoing light L ₁ , the outgoing light L ₂ and the outgoing light L ₃ can also be different from each other, for example, for different regions of the same plant, or different growth stages of the same plant, The wavelengths of the required light are not completely consistent, so changing the wavelengths of the outgoing light L ₁ , the outgoing light L ₂ and the outgoing light L ₃ can better meet the wavelength requirements of different growing parts of the plant.

According to a preferred embodiment, the present invention configures the light homogenizer 9 so that the outgoing light L ₁ and the outgoing light L ₂ generated by the light L emitted by the same LED light source 8 and facing in different directions after passing through the light homogenizer 9 And the outgoing light L3 has almost the same luminous flux, and especially the light homogenizer ₉ is arranged on the opposite side of the first LED light source array which is almost directly illuminated, so as to provide almost uniform and comparable light to the target area, so as to adapt to plants and The growth needs of animals, providing them with suitable light to make them grow well.

According to a preferred embodiment, the present invention preferably configures a light homogenizer 9 in the first LED light source array. Further, in the actual use process, the light homogenizer 9 can also be configured in the second LED light source array according to the requirements of the use scene, so that each LED light source 8 in the second LED light source array is reflected to the reflective surface of the reflective member 5. The intensity of the light L is almost the same, but considering that the main function of the second LED light source array is to make up for the blind area of illumination or the dark mixed light area of the first LED light source array, and the light L provided by the second LED light source array needs to experience at least once Therefore, compared with the first LED light source array reaching the target area directly through the light homogenizer 9, the consistency of the light emitted by the second LED light source array reaching the target area is higher than that of the first LED light source array. It is difficult to guarantee the LED light source array, and the design is relatively complicated. It is necessary to accurately calculate the distance and included angle between each LED light source 8 in the second LED light source array and the reflective surface of the reflective member 5, and it is necessary to reasonably configure the light transmission area of each light transmission area. The light transmission range and the corresponding gap and number of sawtooth structures, etc.

According to a preferred embodiment, the diffuser plate 3 and the brightness enhancement film 4 can be arranged in the outgoing direction or the target direction of the light. Specifically, as shown in FIG. 1 , the diffuser plate 3 and the brightness enhancement film 4 can be arranged on the side of the lamp holder 1 away from the top plate 2 , that is, the bottom surface of the lamp holder 1 . Above Bright Film 4. In particular, in some optional embodiments, two diffuser plates 3 can be arranged, and the brightness enhancement film 4 can be arranged between the two diffuser plates 3, so that the brightness enhancement film 4 can correct the light emitted by the diffuser plates 3 , and can condense the light and improve the brightness, while the diffuser plate 3 can further homogenize the light and improve its brightness.

It should be noted that the above-mentioned specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the scope of the present invention. into the scope of protection of the present invention. It should be understood by those skilled in the art that the description of the present utility model and the accompanying drawings are illustrative rather than limiting to the claims. The protection scope of the present invention is defined by the claims and their equivalents. The specification of the present utility model contains a number of utility model concepts, such as "preferably", "according to a preferred embodiment" or "optionally" all indicate that the corresponding paragraph discloses a separate concept, and the applicant reserves the basis for each utility model concept. The right to file a divisional application.

Claims (10)

1. A wide-range lighting device suitable for animals and plants, characterized in that, comprising: A light source mounting assembly, comprising a light stand (1), the light stand (1) having a plurality of mounting bars (6) for mounting light sources; A light source supply assembly, which is arranged on the mounting bar (6), includes an LED light source array composed of a plurality of LED light sources (8), and the LED light source array includes: a first LED light source array, which is arranged on the bottom surface of the mounting bar (6) in a manner opposite to the object to be irradiated; A second LED light source array is disposed on both sides of the mounting bar (6) relative to the first LED light source array; Wherein, the first LED light source array is configured with a light homogenizer (9) arranged opposite to the LED light source (8) and comprising a plurality of light transmission regions with different light transmittances. 2 . The lighting device according to claim 1 , characterized in that, the light homogenizer ( 9 ) has a plurality of light-transmitting regions that are sequentially arranged along the middle of the light to the outside and have increasing light transmittance. 3 . 3 . The lighting device according to claim 2 , wherein the plurality of light-transmitting regions of the light homogenizer ( 9 ) are configured with sawtooths, and the arrangement densities of sawtooths provided in each light-transmitting region are different. 4 . 4 . The lighting device according to claim 3 , wherein the arrangement density of the sawtooth of each light-transmitting area of the light homogenizer ( 9 ) increases sequentially along the middle of the light homogenizer ( 9 ) toward the outside. 5 . 5. The lighting device according to claim 2, wherein the light homogenizer (9) has a light shielding structure, and the light shielding structure is composed of a plurality of light shielding layers with different lamination degrees, wherein each light shielding layer corresponds to The coverage in the light-transmitting area decreases along the stacking direction away from the light homogenizer (9). 6 . The lighting device according to claim 5 , further comprising a reflective member ( 5 ), and the reflective member ( 5 ) is disposed adjacent to the second LED light source array in a manner of reflecting the emitted light of the second LED light source array. 7 . between the second LED light source arrays. 7 . The lighting device according to claim 6 , wherein the reflective member ( 5 ) is of a prismatic structure, wherein the reflective member ( 5 ) has opposite and opposite to the second LED light source arrays on both sides respectively. 8 . A reflective surface arranged at a predetermined angle with respect to the horizontal reference plane. 8. The lighting device according to claim 7, characterized in that, a heat pipe (7) extending along the longitudinal direction of the mounting bar (6) is arranged inside the mounting bar (6). 9. The lighting device according to claim 8, characterized in that, the bottom of the lamp holder (1) is provided with a diffuser plate (3) and a brightness enhancement film (4) that are stacked on each other, and the diffuser plate ( 3) It is arranged on the top of the brightness enhancement film (4) relative to the first LED light source array. 10 . The lighting device according to claim 9 , further comprising a top plate ( 2 ) opposite to the diffuser plate ( 3 ) and the brightness enhancement film ( 4 ), the top plate ( 2 ) being disposed on the At the top opening of the lamp holder (1), the mounting strip (6) for mounting the light source is arranged on the bottom surface of the top plate (2).

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