Small angle generating apparatus

Details Small angle generating apparatus Small angle generating apparatus

1988-07-05

1990-01-02

Scott, Jr., Leon

Optics: measuring and testing

Angle measuring or angular axial alignment

G01B 1126

Patent

active

048909173

ABSTRACT:
A small angle generating apparatus is described for deviating optical beams y accurately measurable 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 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.

REFERENCES:
patent: 3904295 (1975-09-01), Hock et al.
patent: 3958884 (1976-05-01), Smith

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