Accession Number : ADD013273
Title : Panoramic Lens.
Descriptive Note : Patent, Filed 20 Sep 82, patented 27 Nov 84,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Cox, Arthur
Report Date : 27 Nov 1984
Pagination or Media Count : 5
Abstract : A panoramic lens grouping utilizes a number of negative and positive power lenses to provide 360 deg photography and projection capabilities. The lens grouping uses a hyperbolic mirror as its input or output, in the photographic or projection mode, respectively. The lensses of the group are selected to reduce the Petzval curvature introduced by the hyperbolic mirror. The lenses are arranged such that the negative power lenses are flanked by the positive power lenses. Provision is made for the use of an internal shutter in the spacing between lenses in the lens group.
Descriptors : *PATENTS, *PANORAMIC CAMERAS, *CAMERA LENSES, *PHOTOGRAPHY, PHOTOGRAPHIC PROJECTORS, HYPERBOLAS, MIRRORS, CURVATURE, REDUCTION, SHUTTERS(OPTICS), WIDE ANGLES, REFRACTION, VISIBILITY, THERMAL RESISTANCE
Subject Categories : Photography
Distribution Statement : APPROVED FOR PUBLIC RELEASE