Accession Number:

ADD014534

Title:

Method and Apparatus for Generating Small Angles

Descriptive Note:

Patent, Filed 5 Jul 1988, patented 20 Mar 1990

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:

1990-03-20

Pagination or Media Count:

4.0

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.

Descriptors:

• *COLLIMATORS
• *PATENTS
• ANGLES
• AUTOMATIC
• LINE OF SIGHT
• MECHANICAL PROPERTIES
• PIVOTS
• ROTATION
• WEDGES

Subject Categories:

• Machinery and Tools

Distribution Statement:

APPROVED FOR PUBLIC RELEASE