Hailong Chen, Yang Gao, Dewen Cheng, Yifan Huang, Yongtian Wang. Optical Description and Design Method of Annularly Piecewise Surface[J]. Acta Optica Sinica, 2018, 38(5): 0522002
- Acta Optica Sinica
- Vol. 38, Issue 5, 0522002 (2018)
Fig. 1. Schematic of surface transformation
Fig. 2. Structural diagram of phone lens
Fig. 3. ERMS curves under different numbers of segments. (a) 2-6; (b) 6-13; (c) 13-20
Fig. 4. Optical path of initial structure
Fig. 5. (a) Optical path when overlap of rays exists; (b) optical path when overlap of rays is solved
Fig. 6. System after optimization of aspherical surface. (a) MTF curve; (b) distortion grid
Fig. 7. Layout of optical system with ultra-short projection lens
Fig. 8. System after optimization of annularly piecewise surface. (a) MTF curve; (b) distortion grid
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Table 1. Performance parameters of ultra-short projection lens
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Table 2. ERMS for three piecewise methods
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Table 3. Polynomial coefficients of each piecewise surface
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