Accession Number : ADD011059

Title :   Target for Optically Activated Seekers and Trackers.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Lakin,C T ; Willett,N F

Report Date : 01 May 1984

Pagination or Media Count : 6

Abstract : This abstract discloses a target for optically activated seekers and trackers (TOAST) which provides for calibrated and variable target characteristics such as size, intensity, spatial position, color and interfering background. The TOAST has a first ilumination system providing a target light beam through an adjustable iris which controls image size. The target beam passes through a collimator lens which focuses the light at infinity. With the target beam focused at infinity, the motion of an elevation plate lengthens or shortens the distance from the collimator lens to a one motion mirror. The target beam is attenuated by a variable filter driven by a servo-motor, and a color selection process is provided by passing the beam through spectral filters. A background light beam with background imagery is provided to the beamsplitter mirror and mixed with the target image so as to simulate the target environment encountered by an operating optically activated seeker and tracker.

Descriptors :   *Patents, Targets, Optical tracking, Homing devices, Simulation, Calibration, Variations, Images, Reflection, Beam splitting, Mirrors, Optical lenses

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE