CN112687668A - Fresh lighting device - Google Patents
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- CN112687668A CN112687668A CN202011639540.6A CN202011639540A CN112687668A CN 112687668 A CN112687668 A CN 112687668A CN 202011639540 A CN202011639540 A CN 202011639540A CN 112687668 A CN112687668 A CN 112687668A
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Abstract
The utility model provides a give birth to bright lighting device, give birth to bright lighting device includes casing, ruddiness chip, blue light chip and green medium, the casing has and holds the chamber, ruddiness chip with blue light chip all locates hold the chamber, green medium fill in hold the chamber, ruddiness chip with blue light chip arouses green medium to launch white light, the normalized spectrogram of white light satisfies the condition: the normalized spectrogram comprises a first red light wave band, the half-wave width of the first red light wave band is 15 nm-30 nm, the wave peak of the first red light wave band is a first wave peak, the relative optical power corresponding to the first wave peak is 0.9-1, and the wavelength corresponding to the first wave peak is 645 nm-665 nm. Through the first red light wave band that sets up above-mentioned parameter, can reduce the generation of yellow light, the bright illumination colour of giving birth to is comparatively restoreed, and the red of showing is difficult to the preferred brown, and the colour comparatively matches with the article of being shone.
Description
Technical Field
The invention belongs to the technical field of fresh lighting, and particularly relates to a fresh lighting device.
Background
The fresh lighting lamp is a new generation special lighting specially designed for fresh food lighting, and can highlight the color characteristics of the fresh food, so that the purchasing desire of people is stimulated.
The spectrum used for the fresh illuminating lamp in the current market mainly takes common white light or monochromatic light mixing, and does not consider refined color management and special scientific adjustment for difference corresponding to the color reducing capability of different illuminated objects. The bright light of giving birth to that common on the market adopts white lamp pearl + red lamp pearl scheme usually, and its mixed light effect is relatively poor. There is also a scheme of blue light chip + green phosphor + red phosphor, and the normalized spectrum of the fresh white light excited by the scheme is shown in fig. 1 or fig. 2, which results in the following disadvantages: (1) the fresh lighting color is distorted, and the displayed red color is more prone to be towards the brown color; (2) the colors do not specifically match the illuminated object.
Disclosure of Invention
The invention aims to provide a fresh lighting device, which has more restored fresh lighting color and stronger color pertinence, solves the problem of spectral interference of red and green light parts, and improves the saturation of red light and green light; greatly improves the color rendering of the white part of the fresh meat and greatly improves the color rendering of the red part.
In a first aspect, the present invention provides a fresh lighting device, which includes a housing, a red light chip, a blue light chip, and a green medium, wherein the housing has a cavity, the red light chip and the blue light chip are both disposed in the cavity, the green medium is filled in the cavity and covers the red light chip and the blue light chip, the blue light chip excites the green medium, the red light chip participates in synthesis to emit white light, and a normalized spectrogram of the white light satisfies a condition: the normalized spectrogram comprises a first red light wave band, the half-wave width of the first red light wave band is 15 nm-30 nm, the wave peak of the first red light wave band is a first wave peak, the relative optical power corresponding to the first wave peak is 0.9-1, and the wavelength corresponding to the first wave peak is 645 nm-665 nm.
In one embodiment, the normalized spectrogram further comprises a green light band, the half-wave width of the green light band is 35nm to 60nm, the peak of the green light band is a second peak, the relative optical power corresponding to the second peak is 0.2 to 0.4, and the wavelength corresponding to the second peak is 530nm to 550 nm.
In one embodiment, the normalized spectrogram further comprises a blue light band, the half-wave width of the blue light band is 15nm to 30nm, the peak of the blue light band is a third peak, the third peak corresponds to a relative optical power of 0.3 to 0.5, and the wavelength of the third peak corresponds to 445nm to 455 nm.
In one embodiment, the normalized spectrogram further comprises a yellow band corresponding to a wavelength in the range of 585nm to 630nm, and the relative optical power of the yellow band is less than 0.15.
In one embodiment, the normalized spectrogram further includes a cyan light band, the cyan light band corresponds to a wavelength range of 465nm to 515nm, and the relative optical power of the cyan light trough is lower than 0.1.
In one embodiment, the normalized spectrogram further comprises a violet band, the violet band corresponds to a wavelength range of 350nm to 420nm, and the relative optical power of the violet band is less than 0.1.
In one embodiment, the normalized spectrogram further comprises a second red wavelength band adjacent to the first red wavelength band, the second red wavelength band corresponding to a wavelength range of 680nm to 780nm, and the relative optical power of the second red wavelength band is lower than 0.1.
In one embodiment, the green dielectric material includes beta-Sialon, the blue chip material includes gallium nitride (GaN), and the red chip material includes aluminum gallium indium phosphide (AlGaInP).
In one embodiment, the fresh lighting device further comprises an encapsulation colloid filled in the cavity, and the mixing ratio of the green medium and the encapsulation colloid is 1: 12-1: 2.
In one embodiment, in a CIE1931 chromaticity diagram, the distribution range of the white light on an X axis is 0.31-0.39, the distribution range of the white light on a Y axis is 0.3-0.4, and the color temperature range of the white light is 4000K-7000K.
Through the scheme that the red light chip and the blue light chip excite the green medium, the half wave width of the excited first red light wave band is between 15nm and 30nm, so that the energy is concentrated, the red light saturation is high, the wavelength of the first wave peak of the first red light wave band is between 650nm and 670nm, the penetrating power of red light is strong, the color and luster of fresh food are restored to be better, meanwhile, the relative optical power corresponding to the first wave peak of the first red light wave band is between 0.9 and 1, and the red display effect is better. In addition, the first red light wave band of above-mentioned parameter can reduce the generation of yellow light to a certain extent, avoids the yellow light to influence the demand of giving birth to bright meat to red saturation to further improve the bright illumination colour of giving birth to and restore the degree, avoid appearing the tawny that influences the purchase desire, can demonstrate the red that comparatively matches with giving birth to bright meat.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a normalized spectrum of a fresh light of the prior art;
FIG. 2 is another normalized spectrum of a fresh light of the prior art;
fig. 3 is a schematic front view of the fresh lighting device according to the embodiment of the present invention;
fig. 4 is a schematic top view of the fresh food lighting device according to the embodiment of the present invention;
fig. 5 is a normalized spectrum diagram of white light excited by the fresh lighting device according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the prior art, please refer to the normalized spectrogram of the existing fresh illuminating lamp shown in fig. 1 and another normalized spectrogram of the existing fresh illuminating lamp shown in fig. 2, it can be seen that the wavelengths corresponding to the peaks of the red light bands in the two normalized spectrograms are both lower than 600nm, the penetrability of red light is insufficient, the color of the fresh illuminating lamp is distorted, and the reduction degree of the color of the fresh meat is low. Moreover, the relative optical power (i.e. relative light intensity) of the red band peaks of the two normalized spectrograms is lower than 0.75, and the bright red color is poor in display effect. Moreover, the red light wave band is connected with the green light wave band, yellow light is easily generated, the yellow light can influence the requirement of the fresh meat on the red saturation, and the brown color of consumers is easily misled, so that the problem that the existing fresh illuminating lamp generally exists is solved.
Referring to fig. 3 and 4, an embodiment of the invention provides a fresh lighting device 100, the fresh lighting device 100 is preferably applied to lighting fresh meat such as fresh pork and fresh beef, and the fresh lighting device 100 can greatly reduce the color of the fresh meat to promote the purchase of consumers. The fresh lighting device 100 can be selected from a fresh lighting lamp, or an electronic device such as a refrigerator and a freezer with a fresh lighting function. The fresh lighting device 100 includes a housing 10, a red chip 20, a blue chip 30, and a green medium 40. The housing 10 has a cavity 101, the red light chip 20 and the blue light chip 30 are both disposed in the cavity 101, and the green medium 40 is filled in the cavity 101 and covers the red light chip 20 and the blue light chip 30. The red chip 20 and the blue chip 30 excite the green medium 40 to emit white light.
Specifically, the red chips 20 may be selected to have a vertical structure or a horizontal structure, and the blue chips 30 may also be selected to have a vertical structure or a horizontal structure. The red light chip 20 and the blue light chip 30 are fixed at the bottom of the shell 10 through solid crystal glue, and are baked for 1-2H at 150 ℃ so that the solid crystal glue is completely cured. Wherein, if the chip is a chip with a horizontal structure, the silicon resin transparent solid crystal glue is adopted; if the chip is a vertical structure chip, the silicon resin silver-doped solid crystal glue is adopted. The fresh lighting device 100 uses the chip LED lamp beads or the COB as the light source, and when using the chip LED lamp beads as the light source, the casing 10 is preferably an LED support, and when using the COB as the light source, the casing 10 is preferably an COB substrate. In addition, bonding wires are required to be arranged between the red light chip 20 and the blue light chip 30 and the housing 10, the bonding wires are generally 0.9mil and 80% of Au, and an M or S wire arc process can be selected. The arrangement and connection mode of the bonding wires depend on the structure of the housing 10, the structural arrangement of the red light chip 20 and the blue light chip 30, and the circuit is conducted. Preferably, the red light chip 20 with a vertical structure, the blue light chip 30 with a horizontal structure, the bracket, the blue light chip 30 and the red light chip 20 are sequentially connected through bonding wires.
Referring to fig. 5, the normalized spectrum of white light satisfies the condition:
the normalized spectrogram comprises a first red light wave band, and the half-wave width of the first red light wave band is 15 nm-30 nm. Specifically, the half-wave width of the first red light band may be selected from 15nm, 18nm, 24nm, 27nm, 30nm, and the like, wherein 30nm is preferred, and the half-wave range is 640nm to 670 nm.
The wave peak of the first red light wave band is a first wave peak, the relative optical power corresponding to the first wave peak is 0.9-1, and the wavelength corresponding to the first wave peak is 645 nm-665 nm. Specifically, the relative optical power (i.e., relative light intensity) corresponding to the first peak is 0.9, 0.92, 0.95, 0.99, 1, etc., wherein 1 is preferred. The wavelength corresponding to the first peak can be selected from 645nm, 651nm, 654nm, 659nm, 665nm, etc., wherein 660nm is preferred.
Through the scheme that the red light chip 20 and the blue light chip 30 excite the green medium 40, the half-wave width of the excited first red light wave band is between 15nm and 30nm, so that the energy is concentrated, the red light saturation is high, the wavelength of the first wave peak of the first red light wave band is between 650nm and 670nm, the penetrating power of red light is high, the color and luster of fresh meat are restored well, meanwhile, the relative optical power corresponding to the first wave peak of the first red light wave band is between 0.9 and 1, and the fresh red display effect is good. In addition, the first red light wave band of above-mentioned parameter can reduce the generation of yellow light to a certain extent, avoids the yellow light to influence the demand of giving birth to bright meat to red saturation to further improve the bright illumination colour of giving birth to and restore the degree, avoid appearing the tawny that influences the purchase desire, can demonstrate the red that comparatively matches with giving birth to bright meat.
In one embodiment, referring to FIG. 5, the normalized spectrogram further comprises a green band. The half-wave width of the green light wave band is 35 nm-60 nm. Specifically, the half-wave width of the green light band can be selected from 35nm, 41nm, 48nm, 53nm, 57nm, 60nm and the like, wherein 60nm is preferred, and the half-wave range is 510nm to 570 nm. By setting the half-wave width of the green light wave band between 35nm and 60nm, the green light wave band can not influence the color development effect of the white fresh meat, and can not influence the color development effect of the red fresh meat, so that the process cost is high, the color is easy to be disordered and the white color is easy to be distorted if the half-wave width of the green light wave band is below 35nm, and the color reduction of the white part of the fresh meat is not facilitated; if the half-wave width of the green light wave band is more than 60nm, the proportion of white light occupied by the green light wave band is too large, red light is easily affected, red color is easily distorted, and the color development of red parts of fresh meat is not facilitated.
The peak of the green light wave band is a second peak, the relative optical power corresponding to the second peak is 0.2-0.4, and the wavelength corresponding to the second peak is 530-550 nm. Specifically, the relative optical power corresponding to the second peak may be selected from 0.2, 0.24, 0.29, 0.34, 0.38, 0.4, and the like. The wavelength corresponding to the second peak can be selected from 530nm, 532nm, 538nm, 544nm, 550nm, etc., wherein 540nm is preferred. Relative luminous power through setting up the second crest is between 0.2 and 0.4, when not influencing white colour development, can also carry out better red colour development, is favorable to avoiding giving birth to bright illumination distortion. The wavelength corresponding to the second peak is between 530nm and 550nm, and the distance between the second peak and the first peak of the first red light band is large, so that the red light color development is not easily influenced.
In one embodiment, referring to fig. 5, the normalized spectrogram further includes a yellow band corresponding to a wavelength range of 585nm to 630nm, and the relative optical power of the yellow band is less than 0.15. Specifically, the left side of the yellow light band is connected with the green light band, and the right side is connected with the red light band. The yellow light band is concave, i.e. the relative optical power of the left and right sides of the yellow light band is higher than that of the middle part. The relative light power of the yellow light trough is lower than 0.15, so that the generation of yellow light is further reduced, the yellow light is prevented from influencing the requirement of fresh meat on red saturation, the brown color is caused, and the red color which is matched with the fresh meat can be presented.
In one embodiment, referring to fig. 5, the normalized spectrogram further includes a blue light band, and the half-wave width of the blue light band is 15nm to 30 nm. Specifically, the half-wave width of the blue light band can be selected from 15nm, 17nm, 19nm, 22nm, 26nm, 29nm, 30nm and the like, wherein 15nm is preferred, and the half-wave range is 435 nm-465 nm. By meeting the requirement that the half-wave width of the blue light wave band is between 15nm and 30nm, the blue light wave band can produce white which meets the requirements of fresh and fresh products, and can not influence the color development of the fresh and fresh red. It can be understood that when the half-wave width of the blue light band is below 15nm, the process is difficult and the requirement for the wafer substrate is high. When the half-wave width of the blue light wave band is more than 30nm, the overall brightness of the wafer is greatly reduced, white light is easily disordered to show a tragic white color, and the vivid effect of the white part is not facilitated.
The wave peak of the blue light wave band is a third wave peak, the relative optical power corresponding to the third wave peak is 0.3-0.5, and the wavelength corresponding to the third wave peak is 445-455 nm. Specifically, the relative optical power of the third peak may be selected to be 0.3, 0.34, 0.39, 0.44, 0.5, and so on. The wavelength corresponding to the third peak can be selected from 445nm, 447nm, 449nm, 451nm, 452nm, 454nm, 455nm, etc., wherein 450nm is preferred. Relative luminous power through setting up the third crest is between 0.3 and 0.5, when not influencing white colour development, can also carry out better red colour development, is favorable to avoiding giving birth to bright illumination distortion. The wavelength corresponding to the second peak is between 445nm and 455nm, so that white meeting the fresh requirement of a white part can be well produced.
It can be understood that the relative optical power corresponding to the first peak of the red wavelength band is between 0.9 and 1, the relative optical power corresponding to the green wavelength band is between 0.2 and 0.4, and the relative optical power corresponding to the third peak of the blue wavelength band is between 0.3 and 5, so as to accurately define the spectral radiance distribution.
In one embodiment, referring to fig. 5, the normalized spectrogram further includes a cyan light band, the wavelength range corresponding to the cyan light band is 465nm to 515nm, and the relative optical power of the cyan light trough is lower than 0.1. Specifically, the left side of the blue light band is connected with the blue light band, and the right side of the blue light band is connected with the green light band. The cyan wavelength band is concave, i.e. the relative optical power corresponding to the left and right sides of the cyan wavelength band is higher than the relative optical power corresponding to the middle part. Relative optical power through setting up the blue or green light trough is less than 0.1, has reduced the formation of blue or green light, avoids the blue or green light to influence the bright red presentation of giving birth to and avoid the blue or green light to influence the bright white presentation of giving birth to, is favorable to improving the bright effect that shows of giving birth to bright meat.
In one embodiment, referring to fig. 5, the normalized spectrogram further includes a violet band, the wavelength range corresponding to the violet band is 350nm to 420nm, and the relative optical power of the violet band is lower than 0.1. Specifically, the violet band is connected to the left side of the blue band. The violet band decreases (substantially does not change after decreasing to a certain degree) with a decrease in the corresponding wavelength. By satisfying that the relative optical power of the violet band is lower than 0.1, the method is beneficial to reducing the probability of appearing tragic white and further improving the fresh effect of white parts.
In one embodiment, referring to fig. 5, the normalized spectrogram further includes a second red light band adjacent to the first red light band, the second red light band has a wavelength ranging from 680nm to 780nm, and the relative optical power of the second red light band is lower than 0.1. Specifically, the left side of the second red band is connected to the first red band. The relative optical power of the second red light wave band is lower than 0.1, so that the saturation of red light is improved, and the fresh effect of a red part is improved.
In one embodiment, referring to fig. 3 and 4, the green dielectric 40 includes beta-Sialon, the blue chip 30 includes gallium nitride (GaN), and the red chip 20 includes aluminum gallium indium phosphide (AlGaInP). It can be understood that the above materials can determine the half wave widths and the wavelength positions corresponding to the wave crests of the red light wave band, the blue light wave band and the green light wave band, which is beneficial to obtaining the white light according with the normalized spectrogram provided by the embodiment of the invention.
In one embodiment, the fresh lighting device 100 further includes an encapsulation glue 50 filled in the cavity 101, and a mixing ratio of the green medium 40 to the encapsulation glue 50 is 1:12 to 1: 2. Specifically, the mixing ratio of the green medium 40 and the encapsulant 50 may be selected from 1:12, 1:11, 1:10.5, 1:8, 1:6.5, 1:4.5, 1:3, 1:2, and the like. The packaging colloid 50 and the green medium 40 are oscillated by a stirrer to be uniformly mixed, the stirring condition can be 200-400 s, and the speed is 1000-2000 n/min, so that the packaging colloid 50 and the green medium 40 can be uniformly mixed. In addition, after the mixture of the encapsulation colloid 50 and the green medium 40 is encapsulated in the cavity 101 of the shell 10, the mixture is cured by baking for 3-4H at 150 ℃, so that encapsulation is completed. It will be appreciated that by satisfying the mixing ratio of the green medium 40 to the encapsulant 50 being between 1:12 and 1:2, it is advantageous to adjust the heights (relative optical powers) of the first, second and third peaks to further define the spectral radiance distribution accurately.
In one embodiment, in the CIE1931 chromaticity diagram, the distribution range of the white light on the X axis is 0.31-0.39, the distribution range of the white light on the Y axis is 0.3-0.4, the color temperature range of the white light is 4000K-7000K, specifically, the color temperature can be selected from 4000K, 4300K, 4500K, 4900K, 5120K, 5870K, 6370K, 7000K and the like. By satisfying the color temperature of the white light between 4000K and 7000K, the fresh light illuminating device 100 provided by the embodiment of the invention can be adapted to human eyes easily while fully exhibiting the fresh effect, and the problem of dazzling or over-darkness can be avoided. Moreover, the CIE1931 distribution of white light is reasonable, which is beneficial to improving the fresh effect.
While the foregoing is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.
Claims (10)
1. The fresh lighting device is characterized by comprising a shell, a red light chip, a blue light chip and a green medium, wherein the shell is provided with a containing cavity, the red light chip and the blue light chip are arranged in the containing cavity, the green medium is filled in the containing cavity and covers the red light chip and the blue light chip, the red light chip and the blue light chip excite the green medium to emit white light, and the normalized spectrogram of the white light meets the conditions that:
the normalized spectrogram comprises a first red light wave band and a green light wave band, the half wave width of the first red light wave band is 15 nm-30 nm, the wave peak of the first red light wave band is a first wave peak, the relative optical power corresponding to the first wave peak is 0.9-1, and the wavelength corresponding to the first wave peak is 645 nm-665 nm.
2. The fresh light fixture of claim 1 wherein the normalized spectrogram further comprises a green band, the half-wave width of the green band is between 35nm and 60nm, the peak of the green band is a second peak, the relative optical power of the second peak is between 0.2 and 0.4, and the wavelength of the second peak is between 530nm and 550 nm.
3. The fresh light device as claimed in claim 1, wherein the normalized spectrogram further comprises a blue light band, the half-wave width of the blue light band is 15nm to 30nm, the peak of the blue light band is a third peak, the third peak corresponds to a relative optical power of 0.3 to 0.5, and the wavelength of the third peak corresponds to 445nm to 455 nm.
4. The fresh lighting device of claim 1 wherein the normalized spectrogram further comprises a yellow band corresponding to a wavelength in the range of 585nm to 630nm, the yellow trough having a relative optical power of less than 0.15.
5. The fresh light fixture of claim 1 wherein the normalized spectrogram further comprises a cyan light band, the cyan light band corresponding to a wavelength in the range of 465nm to 515nm, the relative optical power of the cyan light band being less than 0.1.
6. The fresh light fixture of claim 1 wherein the normalized spectrogram further comprises a violet wavelength band corresponding to a wavelength in the range of 350nm to 420nm, the violet wavelength band having a relative optical power of less than 0.1.
7. The fresh light fixture of claim 1 wherein the normalized spectrum further includes a second band of red light adjacent to the first band of red light, the second band of red light corresponding to a wavelength range of 680nm to 780nm, the second band of red light having a relative optical power of less than 0.1.
8. The device as claimed in any one of claims 1 to 7 wherein the green medium comprises β -Sialon, the blue chip comprises gallium nitride (GaN), and the red chip comprises aluminum gallium indium phosphide (AlGaInP).
9. The fresh lighting device as claimed in any one of claims 1 to 7, further comprising an encapsulation glue filled in the cavity, wherein a mixing ratio of the green medium to the encapsulation glue is in a range of 1:12 to 1: 2.
10. The fresh lighting device as claimed in claim 1, wherein in CIE1931 chromaticity diagram, the distribution range of the white light on the X-axis is 0.31-0.39, the distribution range of the white light on the Y-axis is 0.3-0.4, and the color temperature of the white light is 4000K-7000K.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639540.6A CN112687668A (en) | 2020-12-31 | 2020-12-31 | Fresh lighting device |
| JP2023535480A JP7538389B2 (en) | 2020-12-11 | 2021-12-10 | LED BRACKET, LIGHT-EMITTING UNIT, AND LIGHT-EMITTING ASSEMBLY |
| EP21902718.2A EP4261904A1 (en) | 2020-12-11 | 2021-12-10 | Led bracket, light-emitting unit, and light-emitting assembly |
| KR1020237020528A KR20230107347A (en) | 2020-12-11 | 2021-12-10 | LED bracket, light emitting unit and light emitting assembly |
| US18/266,298 US20240047623A1 (en) | 2020-12-11 | 2021-12-10 | Led bracket, light-emitting unit, and light-emitting assembly |
| PCT/CN2021/137073 WO2022122013A1 (en) | 2020-12-11 | 2021-12-10 | Led bracket, light-emitting unit, and light-emitting assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011639540.6A CN112687668A (en) | 2020-12-31 | 2020-12-31 | Fresh lighting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112687668A true CN112687668A (en) | 2021-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011639540.6A Pending CN112687668A (en) | 2020-12-11 | 2020-12-31 | Fresh lighting device |
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| CN (1) | CN112687668A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022122013A1 (en) * | 2020-12-11 | 2022-06-16 | 深圳市聚飞光电股份有限公司 | Led bracket, light-emitting unit, and light-emitting assembly |
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2020
- 2020-12-31 CN CN202011639540.6A patent/CN112687668A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022122013A1 (en) * | 2020-12-11 | 2022-06-16 | 深圳市聚飞光电股份有限公司 | Led bracket, light-emitting unit, and light-emitting assembly |
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