Accession Number : ADD014467

Title :   Small Angle Generating Apparatus.

Descriptive Note : Patent, Filed 5 Jul 88, patented 2 Jan 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Magee, Robert J ; Marchi, Jian P

Report Date : 02 Jan 1990

Pagination or Media Count : 5

Abstract : A small angle generating apparatus is described for deviating optical beams by accurately measureable small angles to calibrate autocollimators or the like. It includes a double mirror combination which is mounted on an elongated mechanical beam which is rotatable on an elongated mechanical beam which is rotatable about a pivot at one end of the beam by means of a micrometer coupled at the opposite end thereof. Rotation of the double mirror combination deviates a beam of light from a test autocollimator from its original position either horizontally or vertically through a small angle which is linearly proportional to the angular rotation of the mechanical beam. Keywords: Patents; PAT-CL-356-138. (kr)

Descriptors :   *COLLIMATORS, *PATENTS, ANGLES, ANGULAR MOTION, AUTOMATIC, BEAMS(ELECTROMAGNETIC), LIGHT, MECHANICAL PROPERTIES, MIRRORS

Subject Categories : Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE