Accession Number : ADA294028

Title :   Multi-Band Infrared Camera Systems.

Descriptive Note : Final rept. Jun 90-Jun 93,

Corporate Author : DAVID SARNOFF RESEARCH CENTER PRINCETON NJ

Personal Author(s) : Davis, Tim ; Lang, Frank ; Sinneger, Joe ; Stabile, Paul ; Tower, John

PDF Url : ADA294028

Report Date : DEC 1994

Pagination or Media Count : 34

Abstract : The program resulted in one of the first IR camera systems to utilize a unique MOS addressable focal plane array with full TV resolution, electronic control capability, and windowing capability. Two systems were delivered, each with two different camera heads: a Stirling-cooled 3-5 um band head and a liquid nitrogen-cooled, filter-wheel-based, 1.5-5 um band head. Signal processing features include averaging up to 16 frames, flexible compensation modes, gain and offset control, and real-time dither. The primary digital interface is a Hewlett-Packard standard GPID) (IEEE-488) port that is used to upload and download data. The FPA employs an X-Y addressed PtSi photodiode array, CMOS horizontal and vertical scan registers, horizontal signal line (HSL) buffers followed by a high-gain pre-amplifier and a depletion NMOS output amplifier. The 640 z 480 MOS X-Y addressed FPA has a high degree of flexibility in operational modes. By changing the digital data pattern applied to the vertical scan register, the FPA can be operated in either an interlaced or non-interlaced format. The thermal sensitivity performance of the second system's Stirling-cooled head was the best of the systems produced. (MM)

Descriptors :   *CAMERAS, *INFRARED DETECTORS, SIGNAL PROCESSING, ARRAYS, FOCAL PLANES, MULTIPLEXING, PIXELS, PHOTODIODES, COMPLEMENTARY METAL OXIDE SEMICONDUCTORS, DEWAR FLASKS.

Subject Categories : Photography
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE