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- Title
Optimization of the light‐emitting diode daylight simulator based on the CIE metamerism index method.
- Authors
Zhao, Yifei; Zhong, Ping; He, Guoxing
- Abstract
By using spectral loss simulation, it was found that six spectral bands are needed to produce a daylight simulator with good performance. The optimization model for both Commission Internationale de l'Eclairage metamerism index and luminous efficacy (LE) of light‐emitting diode (LED) daylight simulator (LDS) was developed. The optimal LDSs with AA grade for D50, D55, D65, and D75 illuminants should consist of the violet LEDs with violet phosphor excited by an ultraviolet chip, and the white LEDs with green, yellow, and red phosphors excited by a blue chip. Their limit luminous efficacies under the ideal case could reach 179 to 204 lm/W. And finally, a scheme for a spectrally tunable LDS with AA grade was presented.
- Subjects
INTERNATIONAL Commission on Illumination; LIGHT emitting diodes; DAYLIGHT; PHOSPHORS; QUANTUM dots
- Publication
Color Research & Application, 2022, Vol 47, Issue 1, p65
- ISSN
0361-2317
- Publication type
Article
- DOI
10.1002/col.22700