Design of the compact off-axis four-mirror optical system with conformal fairing

Qi Li; Song Xu; Kun Yu; Jinyan Kan; Rongsheng Qiu

doi:10.1117/12.2320503

14 September 2018 Design of the compact off-axis four-mirror optical system with conformal fairing

Qi Li, Song Xu, Kun Yu, Jinyan Kan, Rongsheng Qiu

Proceedings Volume 10742, Optical Manufacturing and Testing XII; 107421B (2018) https://doi.org/10.1117/12.2320503
Event: SPIE Optical Engineering + Applications, 2018, San Diego, California, United States

Abstract

Off-axis reflective optics, due to its no chromatic, no obscuration, small size, compact structure, easy to achieve wide field of view(FOV), high-quality imaging and other features, are widely concerned. In this paper, the conformal ellipsoidal dome of MgF₂ material is used to allay the air resistance and reduce the aerodynamic heating effect of the missile head. The compact off-axis four-mirror is used to realize a conformal optical system of the seeker with medium wave infrared(MWIR)，which the working waveband is 3~5μm, F number is 2, FOV is ±1 degree and the focal length is 55mm. The optics achieve 100% cold aperture efficiency and the MTF value of each field at 17lp/mm is greater than 0.7. It has a working distance of 17.4mm and a sapphire window 14.7mm apart from the focal plane, leaving plenty of room for the refrigerant detector. This system can also meet the high accuracy positioning with imaging quality requirements and ensure light design of the seeker.

Citation Download Citation

Qi Li, Song Xu, Kun Yu, Jinyan Kan, and Rongsheng Qiu "Design of the compact off-axis four-mirror optical system with conformal fairing", Proc. SPIE 10742, Optical Manufacturing and Testing XII, 107421B (14 September 2018); https://doi.org/10.1117/12.2320503

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
7 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mirrors

Modulation transfer functions

Imaging systems

Monochromatic aberrations

Aerodynamics

Distortion

Missiles

Show All Keywords

Keywords/Phrases

Search In:

Publication Years