Acta Physica Sinica, Volume. 69, Issue 9, 094201-1(2020)
Figures & Tables(14)
Fig. 4. Simulation of freeform surface shape: (a) Shape of surface 5; (b) shape of surface 6.
Table 1. Design requirements for the wide-angle microscope eyepiece.
View tableView in ArticleTable 1. Design requirements for the wide-angle microscope eyepiece.
设计指标 数值 焦距/mm 10 放大倍率 25× 出瞳直径/mm 2 出瞳距离/mm 7 视场角/(°) 60 后截距/mm 5 畸变/% < 5%
Table 2. Optical prescription data for wide-angle eyepiece optical system.
View tableView in ArticleTable 2. Optical prescription data for wide-angle eyepiece optical system.
表面 半径/mm 厚度/mm 材料 *表面5和6为非球面. 物面 Infinity Infinity 光阑 Infinity 7.11 2 –16.00 2.26 H-ZLAF78 B 3 –6.00 1.96 ZF4 4 –30.08 0.03 5* 15.27 5.03 PMMA 6* –8.31 0.02 7 8.92 3.00 H-ZK7 8 33.30 1.98 ZF52 9 6.40 5 像面 Infinity —
Table 3. XY polynomial coefficients.
View tableView in ArticleTable 3. XY polynomial coefficients.
表面5 表面6 Conic –4.00 –1.71 E3 4.18 × 10–3 0.017 E5 5.64 × 10–3 0.019 E10 2.33 × 10–3 3.00 × 10–3 E12 –8.73 × 10–5 2.58 × 10–4 E14 –4.19 × 10–5 1.10 × 10–4 E21 –4.19 × 10–4 –5.56 × 10–4 E23 4.59 × 10–6 6.61 × 10–6 E25 6.85 × 10–8 4.95 × 10–7 E27 1.38 × 10–7 2.77 × 10–7 E36 –7.25 × 10–6 6.64 × 10–9 E38 6.09 × 10–6 7.13 × 10–6 E40 3.81 × 10–8 3.39 × 10–7 E42 5.18 × 10–10 2.58 × 10–8 E44 –3.43 × 10–10 7.32 × 10–9
Table 4. Evaluation index of imaging quality
View tableView in ArticleTable 4. Evaluation index of imaging quality
评价指标 数值 40 lp/mm处MTF > 0.3 畸变/% < 5 场曲/mm < 0.2
Table 5. Distortion allowed by general visual systems.
View tableView in ArticleTable 5. Distortion allowed by general visual systems.
视场角2ω' 相对畸变δyz' 40° 5% 60°—70° 10% > 70° > 10%
Table 6. Tolerance Parameter.
View tableView in ArticleTable 6. Tolerance Parameter.
公差项 公差值 半径/mm 0.02 厚度/mm 0.03 元件倾斜/(°) 0.02 元件偏心/mm 0.02 不规则度/fringes 3 阿贝数/% 2 折射率 0.002
Table 7. Results of Monte Carlo analysis.
View tableView in ArticleTable 7. Results of Monte Carlo analysis.
概率 40 lp/mm处平均MTF 90% 0.508 80% 0.510 50% 0.523 20% 0.540 10% 0.549
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Yu-Tong Guo, Jun Chang, Yao-Yao Hu, Yue Zhong, Da-Lin Song.
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Received: Dec. 2, 2019
Accepted: --
Published Online: Nov. 26, 2020
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