Accession Number : AD0915227

Title :   Investigation of a Multibeam FLIR Display System.

Descriptive Note : Final rept. Jun 72-Aug 73,

Corporate Author : NORTHROP CORP PALOS VERDES PENINSULA CA ELECTRONICS DIV

Personal Author(s) : McDade, John L.

Report Date : SEP 1973

Pagination or Media Count : 89

Abstract : This report summarizes the results of a one year research and development effort to design, fabricate, test and demonstrate the performance of a compact 160 X 256 resolution element multibeam FLIR display system. The display system (DIGISPLAY) was designed with 40 simultaneous writing electron beams so as to be directly compatible with the AVCO Night Sensor FLIR scanner, which utilizes 40 I.R. sensors, without the utilization of multiplexing circuitry as is required by conventional CRT systems. The DIGISPLAY system was fabricated and successfully demonstrated with the AVCO Night Sensor FLIR scanner. The display provided stable FLIR imagery when operated with the video input signals from the multi element I.R. scanner and fulfilled most of the design goal that were established for the system. The DIGISPLAY provided a highlight screen brightness of 51 foot lamberts and 8 shades of gray scale (square root of 2 per step) which were obtained by means of pulse width modulation circuitry. Performance measurements were obtained from the operating system including such parameters as brightness, contrast, screen uniformity, gray scale performance and power consumption. (Author)

Descriptors :   *FORWARD LOOKING INFRARED SYSTEMS), (*DISPLAY SYSTEMS, (*IMAGE TUBES, ELECTRON BEAMS), ELECTROMAGNETIC COMPATIBILITY, MULTIPLE BEAMS(RADIATION), ELECTRON GUNS, PULSE DURATION MODULATION, NIGHT, INDIUM ANTIMONIDES, ELECTRONIC SCANNERS, RESOLUTION, TRANSFER FUNCTIONS, VIDEO SIGNALS.

Subject Categories : Electrooptical and Optoelectronic Devices
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE