Shiliang Lou, Jun Wu, Zhitao Xiao, Lei Geng, Fang Zhang, Wen Wang. Optical System Design of Portable Stereoscopic Imaging Fundus Camera[J]. Acta Optica Sinica, 2018, 38(11): 1122004
- Acta Optica Sinica
- Vol. 38, Issue 11, 1122004 (2018)
Fig. 1. Optical structure of fundus camera
![Two forms of stereomicroscope[4]. (a) Parallel optical path system; (b) Tilted optical path system](/richHtml/gxxb/2018/38/11/1122004/img_2.jpg)
Fig. 2. Two forms of stereomicroscope[4]. (a) Parallel optical path system; (b) Tilted optical path system
Fig. 3. Imaging system
Fig. 4. Optical characteristic curves of imaging system. (a) MTF curves; (b) field curvature and distortion curves; (c) chromatic aberration curves
Fig. 5. MTF curves under different diopters
Fig. 6. Illumination system
Fig. 7. Simulation results of illumination uniformity in fundus. (a) Annular spot near cornea; (b) on retina
Fig. 8. Simulated disparity map
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Table 1. Expression of relationship between each lens parameter and human eye diopter
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Table 2. Comparison among our designed optical system and other designs
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