Accession Number : ADD001443

Title :   Catadioptric Objective.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Lin,Wai Min

Report Date : 09 Jul 1975

Pagination or Media Count : 11

Abstract : The patent application discloses a catadioptric objective lens system that has a field of view of 10 degrees, and that will provide: a large relative aperture of 1.28; optimum performance in the S-20 spectral range; and, maximum light throughout the region of apertures for exactly the 10 degree field of view. The principal object of this invention is to teach the structure (i.e., the construction) of such a lens system.

Descriptors :   *Camera lenses, Patents, Photographic equipment

Subject Categories : Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE