Journal of Applied Optics, Volume. 45, Issue 5, 896(2024)
Design of optical system for disposable epidural endoscope
Figures & Tables(9)
Fig. 3. MTF curves of disposable epidural endoscope optical system
Fig. 4. Spot diagram of disposable epidural endoscope optical system
Fig. 5. Field curvature and distortion curves of disposable epidural endoscope optical system
Fig. 6. Pupil ghost image formed by reflection from the 6th to 5th surface
Fig. 7. Focal ghost image formed by reflection from the 10th to 9th surface
Table 1. Design parameters of optical system for epidural endoscope
View tableView in ArticleTable 1. Design parameters of optical system for epidural endoscope
Parameters Specification Number of pixel 328×250 Pixel size/μm 2.5×2.5 Panel size/mm 0.82×0.625 Wavelength/nm Visible（486.1～656.3） F# 4.0 Field of view/(°) 90 System length/mm <1.6 Distortion/% <20（at 1.0 Field） Relative illuminance/% >60（at 1.0 Field）
Table 2. Aspherical coefficients
View tableView in ArticleTable 2. Aspherical coefficients
Coefficients S6 S7 a0 0.860 159 0.744 007 a1 −0.136 558 0.263 194 a2 0.043 941 −0.074 506 a3 −0.011 143 0.015 127 a4 −2.148 213×10−3 −8.066 591×10−4 a5 −7.474 335×10−4 −8.922 627×10−4
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Yuyao LI, Chunying PANG, Yu YANG, Xiaoling SUN. Design of optical system for disposable epidural endoscope[J]. Journal of Applied Optics, 2024, 45(5): 896
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Received: Dec. 21, 2023
Accepted: --
Published Online: Dec. 20, 2024
The Author Email: Yuyao LI (liyuyao1983@163.com)
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