Accession Number : ADD003210

Title :   Invisible Radiation Imaging Device.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : VanBuskirk,Lyman F

Report Date : 24 Aug 1976

Pagination or Media Count : 4

Abstract : A device is presented for visually imaging invisible radiation, having a detector and light emitting diode circuit interposed between two identical coded rotating discs, wherein the LED provides an output in response to the invisible radiation passed by the first disc and detected by the detector. That portion of LED output passed by the second disc is the output of the system. This output will visually appear as a gray field with a bright spot corresponding in position to the position of the radiation source in the field of view of the system. The appearance of the output results from the patterns of the disc which permits 50% transmissivity at any moment in time when an infrared source is present. The visual appearance resulting from at least one complete rotation of the disc is a field of 25% illumination with bright spots of 50% illumination therein corresponding to bright spots in the field of view.

Descriptors :   *Patents, *Infrared detectors, *Image processing, Light emitting diodes, Photodetectors, Rotation, Light, Optical images

Subject Categories : Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE