Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Simplified unobscured optics design for a diffractive telescope

Not Accessible

Your library or personal account may give you access

Abstract

An unobscured optical system provides a good solution for a high-performance diffractive telescope. However, the unobscured diffractive telescope, such as an off-axis three-mirror diffractive telescope (OTDT), suffers from the complex calculation of initial parameters, strict tolerance, and fabrication of aspheric mirror diffractive optical elements (DOE). In this paper, a simplified unobscured design method, which is effective in achieving compact and loose tolerance, is proposed. Combining the deflection of an optical path and Schupmann achromatic theory, a novel unobscured diffractive telescope is rapidly converted from a coaxial transmissive system. Not only is the loose tolerance obtained, but the fabrication of an aspheric mirror DOE is avoided. The designed system, with a focal length of 400 mm, $f$-number of 5, and working waveband of 612.8–652.8 nm, is analyzed. The results show that the imaging quality approached the diffraction limit within a field of view of ${0.04}^\circ \times {0.02}^\circ $. Compared with the OTDT, the designed system has great advantages in design step, DOE fabricating, and system alignment. It also provides a reference for unobscured diffractive telescope development.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical design and fabrication of an all-aluminum unobscured two-mirror freeform imaging telescope

Yongjun Xie, Xianglong Mao, Jinpeng Li, Fengbiao Wang, Peng Wang, Rong Gao, Xing Li, Shangjie Ren, Zhichen Xu, and Rongguang Dong
Appl. Opt. 59(3) 833-840 (2020)

Optical design of diffraction-limited x-ray telescopes

Brandon D. Chalifoux, Ralf K. Heilmann, Herman L. Marshall, and Mark L. Schattenburg
Appl. Opt. 59(16) 4901-4914 (2020)

Design of a superresolution large-aperture telescopic optical system with a wide field of view

Chao Wang, Hao-dong Shi, Zhuang Liu, Qiang Fu, Su Zhang, Jun-tong Zhan, Ying-chao Li, Lun Jiang, and Peng Zhang
Appl. Opt. 59(26) 7883-7892 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (5)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (13)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved