Yihan YANG, Lihao HUANG, Dingcheng WANG, Yang LI, Xuanyu WANG, Guorong SUI. Luminescence performance of pc-WLED excited by blue ray LD[J]. Optical Instruments, 2024, 46(4): 64
- Optical Instruments
- Vol. 46, Issue 4, 64 (2024)
Fig. 1. Structure of pc-WLED system excited by blue LD
Fig. 2. RC laser module
Fig. 3. Photos of fluorescent sheets plates pasted on different reflective substrates
Fig. 4. SEM photos of S1−S4 surface after polishing
Fig. 5. Schematic diagram of self-made test system for thermal emission characteristics
Fig. 6. Output light efficiency and color temperature curves of four fluorescent ceramic sheets with temperature variation
Fig. 7. Photo of fluorescent ceramic sheet after packaging
Fig. 8. Spectra of S1-S4 with 1 A current
Fig. 9. Light flux of four LEDs under different current
Fig. 10. The variation of light flux of S1-S4 with LD current under different LED bias current
Fig. 11. Light efficiency of LED and LD as a function of current （S3 sample）
Fig. 12. Photos of light spots cast by four samples in RC laser module
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Table 1. Output light flux of fluorescent ceramic sheets pasted on different reflection substrates
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Table 2. List of components of S1−S4
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Table 3. Optical parameters of S1-S4 with 1 A current
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Table 4. Optical parameters for excitation of LD only（@1 A）
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Table 5. Optical parameters for excitation of LED only（@1 A）
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Table 6. Optical parameters for excitation of both LED and LD（@1 A）
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