CN215636704U - Environmental illumination simulation light source based on multi-primary-color spectrum superposition process - Google Patents
Environmental illumination simulation light source based on multi-primary-color spectrum superposition process Download PDFInfo
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Abstract
The patent discloses an ambient illumination simulation light source based on polybase color spectrum stack process, its characterized in that includes: a case constructed of a light-impermeable material; the integrated circuit board comprises a plurality of circuit board units spliced in a hexagon, and all the units are laid in the box body in a splicing mode; the LED primary color lamp beads comprise a plurality of channels of LED primary color lamp beads, and the spectral characteristics of the LED primary color lamp beads in each channel are the same; the plurality of LED lamp beads are uniformly arranged on each unit of the integrated circuit board; and the power supply controller is arranged on the box body and electrically connected with the integrated circuit board and the LED lamp beads. This patent adopts the lamp pearl of different passageways to simulate the spectral characteristic of ambient light source, can follow the spectral simulation angle and reproduce ambient light source.
Description
Technical Field
This patent belongs to image processing technology field, particularly relates to an environmental illumination analog system based on polybase color spectral superposition process.
Background
The LED light source is widely applied to various industries due to the advantages of environmental protection, energy conservation, long service life, rich colors and the like, or used as a signal indicating lamp or a lighting source. In the aspect of household lighting, with the appearance of new words such as big health, intelligent furniture and healthy lighting, people have new requirements on household lighting light, such as color temperature and brightness can be adjusted, and even intelligent control can be realized. In the aspect of commercial lighting, consumer electronics display flagship stores such as brand clothing stores, jewelry stores, mobile phones and the like in large markets also require higher and higher environmental lighting capable of faithfully reproducing colors, for example, the color rendering index of lighting light is not lower than 85. The imaging technology has higher relative requirements with the image reproduction industry, and the related industry of the camera requires that the spectrum of the light source in the imaging color calibration of the imaging equipment meets the standard, such as the standard spectral power distribution specified by the International Lighting Association; the requirement of the image reproduction industry on the illumination environment, the CRI (color rendering index) greater than 95 and the like. The new requirements of new state promote the development of the mixed light source technology using the LED as the primary color, and light sources with adjustable color temperature and brightness such as 2 primary colors, 4 primary colors and the like appear in the market, thereby meeting the requirements of partial markets to different degrees.
In recent years, the research of a multi-channel mixed light source with LEDs as primary colors is proposed, and the technical development target tends to simulate the application technology development of sunlight spectrum: 1) in order to meet the use of standard photochromic calibration in the imaging technical field, a scientific-grade light source is needed, the light source needs adjustable spectrum, the spectral range is not only in the visible light range of 380-780nm, but also can be expanded to 940nm or even 1050 nm; 2) in order to meet the use requirements of health illumination, intelligent illumination and the like, the color temperature and the brightness of a light source need to be intelligently adjustable, and the change of the color temperature of the simulated sunlight from morning to evening, such as the adjustment range of the color temperature needs to realize the range of 1600-25000 and the like; 3) in order to meet the requirements of standardized lighting environments in the video reproduction and reproduction industry, the spectral power distribution of the light source is required to meet the requirements of standard light sources such as CIE A, B, C, D50, D55, D65, D75 and the like, the color rendering index is not lower than 90, and the illumination intensity is not lower than 3000Lux and the like.
The mixed color light source using LED as primary color mainly aims at realizing the adjustability of color temperature and brightness, and can be divided into two types: one is a matching method in which color coordinates are set as a target value, and the other is a matching method in which a spectrum is set as a target. The matching mode of the color coordinates is metamerism colors, and at present, the color coordinates mainly have two primary colors, four primary colors and the like. The two primary colors are mixed, namely the primary colors participating in mixing are composed of 2 LED lamps, such as the mixture of a cold white LED and a warm white LED, and the color temperature adjusting range of the mixed color light can only be between the color temperatures of the two primary colors. The four-primary-color light mixing means that primary colors participating in mixing are composed of 4 LED lamps, such as RGB + white (warm white or cold white), compared with two primary colors, the four-primary-color light mixing color rendering index is improved, the matching accuracy of color coordinates is improved greatly, the color temperature adjusting range is wide, and due to the fact that the coefficient solution of the four primary colors is not unique when the same color temperature is matched, the spectrum is not fixed or the spectrum distribution range is not ideal. The matching mode taking the spectrum as a target expects the matching with the same spectrum, a plurality of primary colors participating in mixing are needed, for example, a scheme of adopting 11, 14 and 15 channels is adopted, and the spectral power distribution is adjustable by optimizing LEDs with different peak wavelengths, wherein the wavelength range is 350-700nm or 400-730 nm. Multi-channel light mixing requires the primary color LEDs to be optimized in hardware, how many, how wide the individual distribution needs to be addressed, etc. The multichannel mixed light requires to develop a spectrum matching algorithm on software, the spectrum matching precision is a challenge, the distribution property of the spectrum of the primary colors of the LED needs to be planned, and the distribution property is limited by the distribution state of the spectrum of the LED. Compared with a low channel, the multi-channel light mixing mode solves the problems of low color rendering index, low color coordinate matching precision, large color temperature error and the like, realizes the simulation of spectral light distribution conceptually, and is a research direction and a solution of the current light source color matching technology.
According to the colorimetry calculation theory, the color temperature of the mixed color light of the two primary colors can only be between the color temperatures of the two primary colors, when the same color temperature is matched, the number of the used primary colors is unchanged, the solution is unique, but sometimes the color temperature deviates far from the black body track, the color difference is more than 0.005, the requirement of national standard on color coordinate precision is not met, the color rendering index is low, and the color rendering method is suitable for common household illumination.
Compared with the two primary colors, the four primary colors have the advantages that the color rendering index can be improved, the matching precision of color coordinates is improved greatly, the color temperature adjusting range is wide, when the color coordinates of a black body are matched, if a circular correction algorithm is configured, the color coordinates can be close to the black body track, the color is good in vision, and the requirement of national standard precision can be met in most cases.
The matching mode with the spectrum as the target expects the same spectrum matching, and a plurality of primary colors, for example, more than 10 primary colors, are needed to participate in the mixing, so that the difficulty of the algorithm for selecting the primary colors and matching the spectrum is great. And due to the limitation of the existing LED primary color spectrum, the algorithm for realizing CIE standard light source spectral distribution matching with higher precision or products are fewer. The existing multi-channel LED color light mixing mode can complete the matching of CIE standard light sources, but the difference of spectral curves such as CIE A, CIE B, CIE D series and the like is still very obvious, and the simulation of sunlight spectrums can not be completed or is difficult to complete due to the optional LED number and the spectrum distribution characteristics of primary colors.
Disclosure of Invention
In view of the above, to solve the above technical problems or some technical problems, an ambient light simulation light source based on a multi-primary light spectrum overlapping process is provided to simulate the light source characteristics of the environment from the perspective of spectrum overlapping.
In order to solve the above problem, the technical scheme provided by the patent comprises:
an ambient illumination simulation light source based on a multi-primary color spectrum superposition process is characterized by comprising: a case constructed of a light-impermeable material; the integrated circuit board comprises a plurality of circuit board units spliced in a hexagon, and all the units are laid in the box body in a splicing mode; the LED primary color lamp beads comprise a plurality of channels of LED primary color lamp beads, and the spectral characteristics of the LED primary color lamp beads in each channel are the same; the plurality of LED lamp beads are uniformly arranged on each unit of the integrated circuit board; and the power supply controller is arranged on the box body and electrically connected with the integrated circuit board and the LED lamp beads.
Preferably, the whole luminous spectrum range of the LED primary color lamp beads covers the spectrum range of visible light.
Preferably, six LED primary color lamp beads are mounted on each circuit board unit; the six LED primary color lamp beads have different spectral parameters respectively.
Preferably, the LED lamp beads on at least two circuit board units have not identical spectral parameters.
Preferably, the power supply controller generates direct current, and the current precision of the direct current transmitted to the primary color lamp beads is within 0.002 mA.
Preferably, a light softening plate is arranged on one surface of the box body.
Preferably, the inner wall of the case is black.
Preferably, the portable electronic device further comprises an ambient light sensor, wherein the ambient light sensor is arranged at four corners of the top of the box body.
Preferably, the LED lamp beads of the same channel are connected with the same power controller.
This patent adopts the lamp pearl of different passageways to simulate the spectral characteristic of ambient light source, can follow the spectral simulation angle and reproduce ambient light source.
Drawings
In order to more clearly illustrate the embodiments of the present specification or the technical solutions in the prior art, the drawings needed to be 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 described in the embodiments of the present specification, and other drawings can be obtained by those skilled in the art according to the drawings.
Fig. 1 is a schematic structural diagram of an ambient illumination simulation light source based on a multi-primary color spectrum superposition process according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram of a primary LED light source according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a primary LED light source according to an embodiment of the present disclosure;
fig. 4 is a schematic view of a lamp panel arrangement structure on the bottom surface of the box body in the specific embodiment of the present patent.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, 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 some embodiments of the present application, but not all 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.
For the purpose of facilitating understanding of the embodiments of the present application, the following description will be made in terms of specific embodiments with reference to the accompanying drawings, which are not intended to limit the embodiments of the present application.
The present embodiment provides an ambient light simulation light source system based on a multi-primary color spectrum stacking process, so as to simulate a target lighting environment. The system provided in the present embodiment preferably includes two parts, a light source device 1 and an analog device as a virtual device.
The light source device 1 includes: the LED packaging box comprises a packaging box body 2, a plurality of LED primary color light sources 3, an integrated circuit board 4, a power supply controller 5, an ambient light measuring sensor 6 and a light softening plate 7.
The whole of the packaging box body 2 is made of a lightproof material, and in the present embodiment, the box body can be made of metal, plastic or paper with high strength. The box body plays a role in bearing each part on one hand, and plays a role in blocking the light source on the other hand. The box body includes a bottom plate 8, side plates 9, and a top plate 10, and the box body takes the shape of a rectangular parallelepiped as shown in fig. 1 in the present embodiment, but the shape of the box body is not limited thereto, and includes a circular truncated cone, a cylinder, a truncated pyramid, a prism, a cube, and the like. The inner wall of the box body is black and is insulated from the outside.
In this embodiment, as shown in fig. 1, the integrated circuit board 4 is laid on the bottom plate of the box body, the integrated circuit board 4 is preferably formed by splicing a plurality of hexagonal units, the hexagonal arrangement light-emitting uniformity tends to be more annular, the uniformity is good, and each module can be controlled independently or cooperatively. In the specific embodiment, each module is formed by the hexagon, so that the light source is convenient to assemble, and the corresponding modules can be adjusted, added and subtracted as required. Moreover, the hexagonal shape has high stability and is similar to a circular shape, so that the uniformity of the light source is good.
The multi-color LED primary light source 8 comprises a plurality of LED lamp beads 11, the circuit board and the lamp beads are connected with a power supply, and the lamp beads are narrow-band LED lamp beads and wide-band LED lamp beads. Thereby forming a mixed light source with a spectral coverage range of not less than 360-830 nm. Preferably, the LED lamp beads are arranged at the corner positions of the hexagonal unit, and preferably, the LED lamp beads of 6 primary colors are arranged on one module. Therefore, the LED lamp beads can be arranged relatively uniformly and stably, and a good color mixing effect is obtained. The LED lamp beads are indispensable elements of the environment illumination simulation system.
And the power supply controller 5 is arranged on the box body, is electrically connected with the integrated circuit board 4 and the LED lamp beads 12 and supplies power to the LED lamp beads 11. The power supply controller generates direct current, and in order to meet the requirement of light source stability, the current precision of the direct current transmitted to the primary color lamp is required to be controlled within 0.002mA, and the power supply controller has good linearity.
And the light softening plate 7 is arranged on the opening on the upper surface of the packaging box body 2. The light softening plate is a light emitting surface of mixed light, can scatter single LED lamp light or a comprehensive light source on the circuit board module to complete spatial mixing, and has certain uniformity, for example, the difference between the four corners and the center of the light emitting surface divided into a squared figure is less than 5%.
Claims (9)
1. An ambient illumination simulation light source based on a multi-primary color spectrum superposition process is characterized by comprising:
a case constructed of a light-impermeable material;
the integrated circuit board comprises a plurality of circuit board units spliced in a hexagon, and all the units are laid in the box body in a splicing mode;
the LED primary color lamp beads are distributed in the plurality of channels, and the spectral characteristics of the LED primary color lamp beads in each channel are the same; a plurality of LED base color lamp beads are uniformly arranged on each unit of the integrated circuit board;
and the power supply controller is arranged on the box body and electrically connected with the integrated circuit board and the LED lamp beads.
2. The ambient illumination simulation light source based on the multi-primary color spectrum superposition process as claimed in claim 1, wherein the entire light emission spectrum range of the LED primary color lamp beads covers the spectrum range of visible light.
3. The ambient lighting simulation light source based on the multi-primary-color spectrum superposition process according to claim 1, wherein six LED primary-color lamp beads are mounted on each circuit board unit; the six LED primary color lamp beads have different spectral parameters respectively.
4. The ambient lighting simulation light source based on the multi-primary color spectrum superposition process as claimed in claim 3, wherein the LED lamp beads on at least two circuit board units have different spectral parameters.
5. The ambient illumination simulation light source based on the multi-primary color spectrum superposition process according to claim 3, wherein the power controller generates direct current, and the current precision of the direct current transmitted to the primary color lamp beads is within 0.002 mA.
6. The ambient lighting simulation light source based on the multi-primary color spectrum superposition process as claimed in claim 1, wherein a soft light plate is arranged on one surface of the box body.
7. The ambient lighting simulation light source based on the multi-primary color spectrum superposition process as claimed in claim 6, wherein the inner wall of the box body is black.
8. The simulated light source of environmental illumination based on multi-primary color spectrum superposition process according to claim 1, further comprising ambient light sensors disposed at four corners of the top of the box.
9. The ambient illumination simulation light source based on the multi-primary color spectrum superposition process as claimed in claim 5, wherein the LED lamp beads of the same channel are connected with the same power controller.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022419465 | 2020-10-27 | ||
| CN2020224194654 | 2020-10-27 |
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| Publication Number | Publication Date |
|---|---|
| CN215636704U true CN215636704U (en) | 2022-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121227079.3U Active CN215636704U (en) | 2020-10-27 | 2021-06-03 | Environmental illumination simulation light source based on multi-primary-color spectrum superposition process |
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| CN (1) | CN215636704U (en) |
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- 2021-06-03 CN CN202121227079.3U patent/CN215636704U/en active Active
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Effective date of registration: 20240712 Address after: 518000 Room 201, building A, No. 1, Qian Wan Road, Qianhai Shenzhen Hong Kong cooperation zone, Shenzhen, Guangdong (Shenzhen Qianhai business secretary Co., Ltd.) Patentee after: Shenzhen Yimeitu Technology Co.,Ltd. Country or region after: China Address before: 518000 Xili street xilihu town xilihu bank, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN POLYTECHNIC Country or region before: China |