Low-cost 320x240 lead salt focal plane array

Timothy R. Beystrum; Niels Jacksen; Marcus L. Sutton; Mark K. Preis; Charles F. Walmsley

doi:10.1117/12.439144

10 September 2001 Low-cost 320x240 lead salt focal plane array

Timothy R. Beystrum, Niels Jacksen, Marcus L. Sutton, Mark K. Preis, Charles F. Walmsley

Proceedings Volume 4372, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XII; (2001) https://doi.org/10.1117/12.439144
Event: Aerospace/Defense Sensing, Simulation, and Controls, 2001, Orlando, FL, United States

Abstract

In pursuit of a low cost, high performance IR, Imager Litton Electro-Optical Systems has developed an Uncooled Lead Salt 320 X 240 camera. The 30 um pitch detectors consist of either Lead Sulfide or Lead Selenide photoconductors fabricated onto a CMOS Multiplexer Read-Out Integrated circuit. The multiplexer uses novel techniques to subtract the large bias current adaptively, and to integrate the residual signal current. The image is acquired in `snapshot' mode. A chopper provides a uniform reference. Although not necessary for functionality, a thermo-electric cooler is incorporated to improve performance. The signal is digitized off focal plane, and pixel substitution/correction functions are subsequently performed. The resulting video signal is either observed on a LCD display at the back of the camera or remoted to an external viewing device.

Citation Download Citation

Timothy R. Beystrum, Niels Jacksen, Marcus L. Sutton, Mark K. Preis, and Charles F. Walmsley "Low-cost 320x240 lead salt focal plane array", Proc. SPIE 4372, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XII, (10 September 2001); https://doi.org/10.1117/12.439144

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