Accession Number : ADD014534

Title :   Method and Apparatus for Generating Small Angles.

Descriptive Note : Patent, Filed 5 Jul 88, patented 20 Mar 90,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Magee, Robert J ; Marchi, Jian P ; Sullivan, Daniel F ; Brown, Gary L

Report Date : 20 Mar 1990

Pagination or Media Count : 4

Abstract : A method and apparatus for generating small angles for calibrating autocollimators or the like is described. It includes a small angle wedge which is rigidly attached to a mechanical beam which is rotatable about a pivot point. The rotation of wedge causes a very small deviation in the line of sight of an autocollimator under test after passing through the wedge and thus gives a large optical advantage. Patents.

Descriptors :   *COLLIMATORS, *PATENTS, ANGLES, AUTOMATIC, LINE OF SIGHT, MECHANICAL PROPERTIES, PIVOTS, ROTATION, WEDGES

Subject Categories : Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE