Method and Apparatus for Generating Small Angles

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.

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Document Details

Document Type
Technical Report
Publication Date
Mar 20, 1990
Accession Number
ADD014534

Entities

People

  • Daniel F. Sullivan
  • Gary L. Brown
  • Jian P. Marchi
  • Robert J. Magee

Organizations

  • United States Department of the Navy

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Accuracy
  • Angular Motion
  • Calibration
  • Detectors
  • Generators
  • Intellectual Property
  • Inventions
  • Law
  • Line Of Sight
  • Micrometers
  • Patents
  • Refractive Index
  • Rotation
  • United States
  • Worm Gears

Fields of Study

  • Physics

Readers

  • Electrical Engineering
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Geodesy