Apparatus for measuring the characteristics of an optical system

Details Apparatus for measuring the characteristics of an optical system Apparatus for measuring the characteristics of an optical system

1982-03-01

1986-07-22

Arnold, Bruce Y.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

356125, 356127, G01B 900

Patent

active

046015752

ABSTRACT:
An apparatus for measuring the optical characteristics of an optical system includes a light source, collimator means for collimating a beam of light from the light source, a mask means, a means for holding the optical system to be tested between the collimator means and the mask means, a detector, a calculator, and first beam splitting means. The mask means includes at least one mask provided in each optical path following the first beamsplitter means, each having a linear band group consisting of at least two parallel linear bands, with each mask disposed to provide a different orientation for the linear bands.

REFERENCES:
patent: 257271 (1981-04-01), Tamaki
patent: 3880525 (1975-04-01), Johnson
patent: 4007990 (1977-02-01), McDevitt et al.
patent: 4180325 (1979-12-01), Humphrey
patent: 4275964 (1981-06-01), Vassiliadis
patent: 4370058 (1983-01-01), Trotscher et al.
patent: 4410268 (1981-04-01), Tamaki

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