Guangping ZHA, Haoyu WU, Jianjun LI, Yinlin YUAN. Angular uniformity of cascaded integrating sphere radiation source[J]. Journal of Applied Optics, 2022, 43(3): 481
- Journal of Applied Optics
- Vol. 43, Issue 3, 481 (2022)
Fig. 1. Irradiance distribution generated by cascaded sub-sphere in integrating sphere
Fig. 2. Simulation model of integrating sphere radiation source with randomly distributed light-emitting units
Fig. 3. Relative reflected radiance distribution curves of symmetrically distributed cascaded sub-sphere at position γ in area ±α
Fig. 4. Relative standard deviation of reflected radiance value in area ±α when angle γ taking points at equal intervals of 20°
Fig. 5. Relative standard deviation of reflected radiance distribution of angle distribution of γ 1, γ 2 and in area ±α
Fig. 6. Optimal solution of relative standard deviation and corresponding angular distribution of γ 1, γ 2
Fig. 7. Schematic block diagram of experimental device
Fig. 8. Structure diagram of cascaded integrating sphere
Fig. 9. Test data curve of light source stability
Fig. 10. Test data curves of horizontal angular uniformity
Fig. 11. Test data curves of vertical angular uniformity
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Table 1. Test results of horizontal angular uniformity
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Table 2. Test results of vertical angular uniformity
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