Design of pupil off-axis space telescope with freeform surfaces based on the nodal aberration theory

Haodong Shi; Lingjie Wang; Chao Wang; Zhuang Liu; Guanlin Li; Huilin Jiang

doi:10.1117/12.2505376

11 January 2019 Design of pupil off-axis space telescope with freeform surfaces based on the nodal aberration theory

Haodong Shi, Lingjie Wang, Chao Wang, Zhuang Liu, Guanlin Li, Huilin Jiang

Proceedings Volume 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes; 108370G (2019) https://doi.org/10.1117/12.2505376
Event: Ninth International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT2018), 2018, Chengdu, China

Abstract

Pupil off-axis optical system has the advantages of imaging unobscured and restraining the stray light for the next generation space telescope. However, non-rotationally asymmetric aberrations lead by the pupil off-axis structure becomes the main influencing factor of imaging quality. Since the freeform surface can provide more degrees of freedom for optical design, it is widely used to control the non-rotationally asymmetric aberrations. In order to guide designer optimize the pupil off-axis optical systems with freeform surfaces efficiently, an aberration analysis method for pupil off-axis optical system with Fringe Zernike polynomial freeform surfaces is proposed. The analysis expressions of third-order astigmatism and coma of the pupil off-axis freeform system are deduced. The freeform impacts on aberration nodal properties are analyzed. According to the aberration distribution, a pupil off-axis space telescope freeform optical system is designed by optimizing the Zernike terms pointedly. The effective focal length is 25m, the pupil diameter is 2m. By stitching multi-detectors to realize the field of view (FOV) of 1.2°×1.2°. Because of introducing freeform surfaces, the third-order astigmatism and coma nodes are both moved back to the FOV. Therefore, the asymmetric aberrations lead by pupil off-axis are balanced. The final imaging quality is closed to the diffraction limit, which meets the requirements.

Citation Download Citation

Haodong Shi, Lingjie Wang, Chao Wang, Zhuang Liu, Guanlin Li, and Huilin Jiang "Design of pupil off-axis space telescope with freeform surfaces based on the nodal aberration theory", Proc. SPIE 10837, 9th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Large Mirrors and Telescopes, 108370G (11 January 2019); https://doi.org/10.1117/12.2505376

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
8 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Monochromatic aberrations

Space telescopes

Aberration theory

Optical instrument design

Mirrors

Zernike polynomials

Diffraction

Show All Keywords

Keywords/Phrases

Search In:

Publication Years