Accession Number : ADD001455
Title : Nonrotationally Symmetric Corrections for Optical Systems with Nonrotationally Symmetric Filed-of-View Requirements.
Descriptive Note : Patent Application,
Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C
Personal Author(s) : Field,David L
Report Date : 20 Aug 1975
Pagination or Media Count : 18
Abstract : The patent application discloses the novel structure of six preferred embodiments of variations of the Schmidt-type telescope, wherein the telescope has a one-dimensional field-of-view requirement. The variations include: a conventional refractive corrector Schmidt system; an all reflective Schmidt system; a Baker three corrector variant of a Schmidt refractive corrector system; a three mirror concentric system; a centered corner corrector reflective Schmidt system; and, a triple reflective corrector system. The variations provide a factor of about 10 improvement in spot size over the standard Schmidt. In addition, elliptical aperture shaping is taught which, in certain cases, provides a factor of 2 improvement over a circular aperture.
Descriptors : *Telescopes, *Corrections, *Optical equipment components, Patents
Subject Categories : Test Facilities, Equipment and Methods
Distribution Statement : APPROVED FOR PUBLIC RELEASE