Optical design and fabrication of an all-aluminum unobscured two-mirror freeform imaging telescope

被引：41

作者：

Xie, Yongjun ^{[1
]}

Mao, Xianglong ^{[1
]}

Li, Jinpeng ^{[1
]}

Wang, Fengbiao ^{[1
]}

Wang, Peng ^{[1
]}

Gao, Rong ^{[1
]}

Li, Xing ^{[1
]}

Ren, Shangjie ^{[1
]}

Xu, Zhichen ^{[1
]}

Dong, Rongguang ^{[1
]}

机构：

[1] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China

来源：

APPLIED OPTICS | 2020年 / 59卷 / 03期

关键词：

FIELD-OF-VIEW; SYSTEMS; DISPLAY;

D O I：

10.1364/AO.379324

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Freeform optics offers more degrees of freedom to optical design that can benefit from a compact package size and a large field of view for imaging systems. Motivated by the advances in modern optical fabrication and metrology, freeform optics has been found in many applications. In this paper, we will describe the challenging optical design, fabrication, metrology, and assembly of an all-aluminum unobscured two-mirror freeform imaging telescope. The telescope has a large field of view of 20 degrees x 15 degrees. The freeform aluminum mirrors are manufactured by diamond turning based on a feedback modification strategy. The freeform mirrors are measured by a computer-generated hologram-based interferometric null test method. All-aluminum configuration has the advantages of being athermal and cost-effective. (C) 2020 Optical Society of America

引用

页码：833 / 840

页数：8

共 38 条

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