Accession Number : ADA018703

Title :   Visible Light Sensor.

Descriptive Note : Final rept. Oct 74-Aug 75,


Personal Author(s) : Fowski,R. ; Levenstein,H. ; Stoll,R. ; Grosso,R. ; Moorhead,J.

Report Date : NOV 1975

Pagination or Media Count : 209

Abstract : The work was primarily concerned with examination of optical systems for employment in the detection of faintly visible objects. The general problems of image quality, field of view, focal surface definition, throughput, optical form, out-of-field source rejection, and sensitivity to thermal and radiation effects of the environment are specific with solutions directed to minimize size and weight. The parameters that are summarized are for three candidate step and stare systems, that is to say, a system that searches the sky by serially examining contiguous areas of angular space, dwelling (staring) long enough at each site to effect detection and then moving into the next segment. A good design allows close approach to earth limb to assure overlap with current space track detection capability, and allows close approach to the sun to minimize blind regions of operational outage.

Descriptors :   *Optical detectors, *Space surveillance systems, Image processing, Optical images, Optical equipment, Mirrors, Optical lenses, Diffraction, Optical scanning, Cost estimates

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE