Off-axis three-mirror reflective zoom system based on freeform surface

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作者
Guijuan XIE
Jun CHANG
Ke ZHANG
Jide ZHOU
Yajun NIU
机构
[1] SchoolofOptoelectronics,BeijingInstituteofTechnology
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摘要
A reflective optical system is not affected by chromatic aberration,so it has a wide range of applications.Based on the design theory of reflective zoom system with three mirrors,this paper presents the simulation,optimization,and image quality evaluation of the traditional offaxis three-mirror zoom system and freeform off-axis threemirror reflective zoom system..In these systems,the optical design was aided by software CODEV.Through the analysis of aberrations and structural performance for the traditional aspherical off-axis three-mirror system,the freeform surface was introduced to the tertiary mirror to improve the balance capacity for optical aberrations.This off-axis three-mirror reflective zoom system based on freeform surface could provide technical reference to the study of such systems.
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页数:7
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