Accession Number : ADD001497
Title : Zoom Lens System Having Four Movable Members.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Betensky,Ellis I ; Schwarz,Alfred
Report Date : 08 Oct 1974
Pagination or Media Count : 6
Abstract : The patent relates generally to zoom lens systems and more particularly it relates to a zoom-type of lens assembly having a variable focal length over a range of substantially 6 to 18 inches. It is an object of the present invention to provide a high quality lens suitable for aircraft reconnaissance applications.
Descriptors : *Zoom lenses, *Patents, Aerial photography
Subject Categories : Cartography and Aerial Photography
Distribution Statement : APPROVED FOR PUBLIC RELEASE