Mengxin Zhou, Daqing Zhu, Xinyi Liao. Relationship Between Spectrum and Color Gamut Area of LED Light Sources[J]. Laser & Optoelectronics Progress, 2020, 57(23): 232302
- Laser & Optoelectronics Progress
- Vol. 57, Issue 23, 232302 (2020)
Fig. 1. Spectral power distribution of sample sources. (a) 2800K light sources; (b) 4000K light sources; (c) 5000K light sources; (d) 6500K light sources
Fig. 2. Change of color temperature after monochromatic light is superimposed on light sources. (a) 2800K light sources; (b) 4000K light sources; (c) 5000K light sources; (d) 6500K light sources
Fig. 3. Change of gamut area after monochromatic light is superimposed on light sources. (a) 2800K light sources; (b) 4000K light sources; (c) 5000K light sources; (d) 6500K light sources
Fig. 4. Spectrum tristimulus curve of CIE1931-RGB system
Fig. 5. Color gamuts of 2800K source 3, superposition of 425nm and 630 nm monochromatic light on 2800K source 3
Fig. 6. Color gamuts of 2800K source 3, superposition of 505nm and 590nm monochromatic light on 2800K source 3
Fig. 7. Visual experiment
Fig. 8. Statistical results of visual experiment
Fig. 9. Change of gamut area of 2800K source 5 after superposition of double monochromatic light. (a) 420nm and 635nm; (b) 420nm and 660nm; (c) 435nm and 635nm; (d) 435nm and 660nm; (e) 450nm and 635nm; (f) 450nm and 660nm
Fig. 10. Results after superposition of double monochromatic light. (a) 2800K light sources; (b) 4000K light sources; (c) 5000K light sources; (d) 6500K light sources
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Table 1. Gamut area index of sample sources
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Table 2. Color temperature of sample sources unit: K
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Table 3. Light source parameters matched by light box
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Table 4. Quantitative scoring of visual experiment
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Table 5. Result of constant color temperature and increased color gamut after double monochromatic light superimposing
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