Angular distortion measurements by moire fringe patterns

Details Angular distortion measurements by moire fringe patterns Angular distortion measurements by moire fringe patterns

1993-07-23

1995-04-11

Rosenberger, Richard A.

Optics: measuring and testing

Lens or reflective image former testing

For optical transfer function

G01B 900

Patent

active

054063752

ABSTRACT:
A process and apparatus for measuring angular distortion in an optical imaging system in order to provide a mapping that completely characterizes the distortion of the imaging system involves electronically capturing the image of a test pattern at the image plane of the imaging system, superposing a computer generated reference pattern on the test pattern, and measuring the deviation of the test pattern from the reference pattern at selected areas of the reference pattern.

REFERENCES:
patent: 1590532 (1926-06-01), Lenouvel
patent: 4386849 (1983-06-01), Haeusler et al.
patent: 4429992 (1984-02-01), Hausler et al.
patent: 4794550 (1988-12-01), Greivenkamp
patent: 5062705 (1991-11-01), Sato et al.
patent: 5243542 (1993-09-01), Noguchi
McGraw-Hill Encyclopedia of Science & Technology, vol. 11, 6th Ed. 1987, (no month) pp. 299-300.

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