Acta Photonica Sinica, Volume. 54, Issue 4, 0422002(2025)
High-power 2
Figures & Tables(13)
Fig. 2. The simulated temperature of the 2π-LED standard lamp based on the finite element analysis method
Fig. 3. Device for measuring the photometric values with the horizontal distributed photometer
Fig. 4. Vaules of Tari and E（0，0）of the 80 LED beads without the TEC cooling system
Fig. 6. Vaules of Tari and E（0，0）of the 80 LED beads with the TEC cooling system
Fig. 7. Adaptability of the 2π-LED standard lamp to the cooling temperature and the ambient temperature
Fig. 8. The spatial luminous intensity distribution of the 2π-LED standard lamp
Table 1. The material parameters of the 2π-LED standard lamp
View tableView in ArticleTable 1. The material parameters of the 2π-LED standard lamp
Component Ρ/（kg·m-3） Cp/（J·kg-1·K-1） λ/（W·m-1·K-1） LED beads 6 150 482 133 Aluminum lamp panel 2 700 900 201
Table 2. Simulated results on the surface of the LED lamp beads at the 8 symmetrical points
View tableView in ArticleTable 2. Simulated results on the surface of the LED lamp beads at the 8 symmetrical points
Point 1 2 3 4 5 6 7 8 Simulated results/oC 29.5 29.6 29.5 29.7 29.7 29.5 29.6 29.5
Table 3. The tested results on the surface of the LED lamp beads at the 8 symmetrical points
View tableView in ArticleTable 3. The tested results on the surface of the LED lamp beads at the 8 symmetrical points
Point 1 2 3 4 5 6 7 8 Tested results/（℃） 28.5 28.0 28.4 28.8 28.9 28.4 28.0 28.5
Table 4. The tested results of the repeatability of the 2π-LED standard lamp
View tableView in ArticleTable 4. The tested results of the repeatability of the 2π-LED standard lamp
Number of the measurements i 1 2 3 4 5 6 7 8 9 10 Measured value of the total luminous flux Φi/lm 3 008 3 006 3 007 3 006 3 008 3 006 3 006 3 009 3 010 3 008
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Wenrui DUAN, Yi LI, Yang BAI, Limin WEI, Xiaoying ZHANG, Peng ZANG, Heng ZHANG, Yingxin ZHANG, Ken CHENG. High-power 2
Paper Information
Category: Optical Design and Fabrication
Received: Oct. 9, 2024
Accepted: Dec. 10, 2024
Published Online: May. 15, 2025
The Author Email: Yi LI (ly13772065511@163.com)
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