Spectral Reconfiguration of Lighting Based on Nonvisual and Visual Effects

Weisen Zeng; Jinze Zheng; Xiaoming Zhou

doi:10.3788/AOS201939.1033001

Acta Optica Sinica, Volume. 39, Issue 10, 1033001(2019)

Spectral Reconfiguration of Lighting Based on Nonvisual and Visual Effects

Weisen Zeng, Jinze Zheng, and Xiaoming Zhou^*

State Key Laboratory of Subtropical Building Science, School of Physics and Optoelectronics, South China University of Technology, Guangzhou, Guangdong 510641, China

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Figures & Tables(8)

Fig. 1. Diagram of experimental test platform

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Fig. 2. RGBW LED system block diagram

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Fig. 3. Absolute spectral distribution of each channel of RGBW LED system

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Fig. 4. Tunability analysis curves. (a) Tunable range of C_AF; (b) tunable range of R_a

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Fig. 5. Experimental results. (a) Target and measured values of chromaticity coordinate; (b) target and measured values of T_cp and E; (c) target and measured values of C_AF and R_a; (d) partially measured spectra

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Fig. 6. Experimental results of regulation of C_AF and R_a. (a) Relationship between C_AF and T_cp under different R_a; (b) partially measured spectra

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Table 1. Related parameters of each channel of RGBW LED system
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Table 1. Related parameters of each channel of RGBW LED system
Channel (x_k,y_k) C_k C_AF_k ${T_{cp}}_{}$ /K
r (0.6934, 0.3061) 2.1656 0.0014 -
g (0.1831, 0.7223) 1.4067 0.0445 -
b (0.1242, 0.0789) 4.7508 7.8207 -
w (0.3803, 0.3784) 3.0248 0.5517 4023

Table 2. Maximum error between the target and measured values of the relevant parameters
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Table 2. Maximum error between the target and measured values of the relevant parameters
E /lx Δ ${T_{cp}}_{}$ /K D_uv Relative error of E /% Relative error of ${C_{AF}}_{}$ /% Relative error of ${R_{a}}_{}$ /%
100 41 0.0036 3.5 4.6 5.6
200 30 0.0041 2.0 4.3 4.9
300 29 0.0034 2.0 5.2 3.3

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Weisen Zeng, Jinze Zheng, Xiaoming Zhou. Spectral Reconfiguration of Lighting Based on Nonvisual and Visual Effects[J]. Acta Optica Sinica, 2019, 39(10): 1033001

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