Dual-aperture optical system for infrared camera

Kim-Hwee Lee

doi:10.1117/12.368511

4 November 1999 Dual-aperture optical system for infrared camera

Kim-Hwee Lee

Proceedings Volume 3898, Photonic Systems and Applications in Defense and Manufacturing; (1999) https://doi.org/10.1117/12.368511
Event: International Symposium on Photonics and Applications, 1999, Singapore, Singapore

Abstract

Conventional IR optical systems with high magnification and switchable FOBs suffer form strong unwanted Narcissus effect. This is mainly caused by retro-reflections from the objective lens back to the detector plane. In this project, a new dual aperture optical configuration has been developed to reduce substantially the Narcissus effect while maintaining good optical performance. A design example is presented in this paper. The relative Narcissus Induced Temperature is reduced from about 1.4 degree C to about 0.1 degree C, thus enhancing the detection range of the IR system.

Citation Download Citation

Kim-Hwee Lee "Dual-aperture optical system for infrared camera", Proc. SPIE 3898, Photonic Systems and Applications in Defense and Manufacturing, (4 November 1999); https://doi.org/10.1117/12.368511

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