Method for Segmented Color Temperature Adjustment Using Multiple Full Spectrum White Light Sources
A white light source and color temperature adjustment technology, which is applied in the field of color temperature adjustment of full-spectrum white light source, can solve problems such as no simultaneous satisfaction, high color rendering index, etc.
Active Publication Date: 2020-01-10
FUDAN UNIV +1
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Problems solved by technology
However, the above methods do not meet the three optimization criteria at the same time: high color rendering index (Ra≥95, color rendering index R1−R8≥90, at least 5 special color rendering indexes R9−R15≥90), large-scale adjustment of color temperature (2000−8000 K) and low color tolerance (SDCM≤3 and color coordinates below the black body line)
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[0030] Below in conjunction with accompanying drawing and example, the present invention will be further described. The described embodiments are only some of the embodiments of the invention. All other embodiments without creative achievements based on the embodiments of the present invention belong to the protection scope of the present invention.
[0031] The present invention selects and mixes a plurality of full-spectrum white light sources in sections to obtain a target light source with a high white light preference at a required color temperature, and the color tolerance SDCM is less than or equal to 3. The specific design method includes the following steps:
[0032] Step 1: Select 5 full-spectrum white light sources (S 1 , S 2 , S 3 , S 4 , S 5 ), their color temperatures are 3468 K, 3953 K, 5042 K, 5956 K and 6474 K respectively, and their light color parameters are shown in Table 1, and their relative spectral distribution curves are shown in figure 1 −5 sh...
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Abstract
The invention belongs to the technical field of semiconductor lighting, and specifically relates to a method for segmented color temperature adjustment using a plurality of full-spectrum white light sources. The present invention selects and mixes a plurality of full-spectrum white light sources in sections to obtain a target light source with high color rendering and high white light preference at the required color temperature. The color temperature adjustment range is 2000−8000 K, and the color tolerance SDCM≤3 and Below the blackbody curve in the CIE 1931xy chromaticity diagram, the general color rendering index Ra≥95, the color rendering index R1−R8≥90, and at least 5 special color rendering indexes R9−R15≥90. The white light source obtained by optimizing the color temperature range, color tolerance and color rendering index adjustment method of the present invention can be applied to lighting occasions that require high light quality.
Description
technical field [0001] The invention belongs to the technical field of semiconductor lighting, and in particular relates to a method for adjusting the color temperature of a full-spectrum white light source. Background technique [0002] With the improvement of human living standards, the light quality of lighting sources is getting more and more attention. In indoor lighting occasions such as homes, shopping malls, museums, art galleries, art studios, printing factories, textile factories, clothing factories, high-end hotels, etc., the importance of light quality is much higher than that of light efficiency, which plays a key role in shaping the overall indoor environment. At present, there are many studies to improve the color temperature adjustment range and color rendering index of white light through dimming and toning, but the color tolerance SDCM is also important for improving the preference of white light. Studies have shown that under the same color temperature an...
Claims
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IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 李福生金宇章韩秋漪蒋昀张善端
Owner FUDAN UNIV