Design of a catadioptric near infrared TV camera

Wei-jun Chang

doi:10.1117/12.2603787

24 November 2021 Design of a catadioptric near infrared TV camera

Wei-jun Chang

Proceedings Volume 12065, AOPC 2021: Optical Sensing and Imaging Technology; 120650K (2021) https://doi.org/10.1117/12.2603787
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

In view of the detection requirements of "low slow and small" targets in the air, this paper introduces a kind of folded and reverse type near infrared television camera. The initial structure design of large aperture near infrared optical system is completed by using the characteristics of refraction optical system and reflective optical system. The focal length is 1200mm and f # is 10. The system is optimized by code V software. Optical transfer function and dispersion circle are used as the evaluation criteria. The image quality of the system reaches the diffraction limit. In this paper, the optical system selection, optical material selection, aberration analysis and other aspects are considered, and the folded optical scheme is proposed. The system blocking ratio is less than 28%, and the distortion is less than 0.5%. The transfer function is close to the diffraction limit, and MTF is more than 0.25 at 50lp/mm. The diameter of dispersion element is the same as the pixel size of detector, and the energy utilization rate is high. Then, the system structure design is completed, and the stray light analysis is completed for the optical machine model and the suppression measures are put forward to ensure the clear observation image of the whole market.

Citation Download Citation

Wei-jun Chang "Design of a catadioptric near infrared TV camera", Proc. SPIE 12065, AOPC 2021: Optical Sensing and Imaging Technology, 120650K (24 November 2021); https://doi.org/10.1117/12.2603787

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
5 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Mirrors

Stray light

Cameras

Monochromatic aberrations

Combined lens-mirror systems

Image quality

Diffraction

Show All Keywords

Keywords/Phrases

Search In:

Publication Years