Accession Number : ADD007104

Title :   Doppler Extended Depth of Field Imaging System with Coherent Object Illumination.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Smith,James L ; Christensen,Charles R

Report Date : 03 Dec 1979

Pagination or Media Count : 14

Abstract : A packageable system employs priciples of Doppler holography on near-field objects to produce images from which photographs, transparencies or video reproductions can be made with simultaneous improvements in depth of field, foreground-backregion exposure ratio, and resolution (where degraded by the object medium). The apparatus consists of two units: a main unit containing a laser and optics, and an external platform that rotates at an appropriate angular velocity, through a very small arc, during image recording of an object on the platform. (Author)

Descriptors :   *Patent applications, *Holograms, *Doppler effect, Photographic analysis, Image converters, Photographs, Transparencies, Video frames, Near field, Portable equipment, Field conditions, Illumination, Coherent optical radiation

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE