Background compensating interferometer

Details Background compensating interferometer Background compensating interferometer

1980-01-04

1981-12-08

Corbin, John K.

Optics: measuring and testing

Range or remote distance finding

With photodetection

356346, 356353, 356360, G02B 500

Patent

active

043044646

ABSTRACT:
A device for reducing the effects of scattered light in an optical instrument utilizes an interferometer for interfering the scattered light and placing the image of the desired object within a dark fringe of the scattered light interference pattern to increase the contrast between the image of the desired object and the background.

REFERENCES:
patent: 3698814 (1972-10-01), Clark

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