Accession Number : ADD007676

Title :   Target Acquisition Apparatus.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Gould,Richard A

Report Date : 09 Jun 1980

Pagination or Media Count : 22

Abstract : A laser spot locator for identifying and locating a target illuminated by a laser emitted light beam is presented. Light energy including laser energy is received by a lens from objects within the field of view with the laser energy being imaged on one or more elements of an optical detector. A dichroic filter for discriminating as to light frequency is positioned in the light path. The non-visible infra-red laser energy is transmitted by the dichroic filter to the optical detector which produces electrical signals indicative of the direction of arrival of the laser energy. Visible light energy of the scene is reflected by the dichroic filter onto an LCD display device which serves as an optical viewing screen of the scene. The display device is connected to the electrical output of circuitry connected to the optical detector and provides an optical indication of the direction of the received laser energy superimposed upon the view of the scene. The apparatus further comprises a reflex camera body which enables lenses to be changed for adapting the sensitivity and viewability of the apparatus to different requirements with the dichroic filter being securely positioned in place of the usual movable reflex mirror of the camera body. (Author)

Descriptors :   *Patent applications, *Target acquisition, *Laser spots, *Optical detectors, Infrared lasers, Infrared detectors, Display systems, Locators, Signals, Lenses, Energy, Paths, Light

Subject Categories : Lasers and Masers
      Optical Detection and Detectors
      Infrared Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE