Light collector for optical contaminant and flaw detector

Details Light collector for optical contaminant and flaw detector Light collector for optical contaminant and flaw detector

1983-12-09

1986-07-22

Kittle, John E.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

356430, 250563, 250572, G01N 2100

Patent

active

046015760

ABSTRACT:
A two-stage light collector, including a first stage which admits a scanning beam and a second stage which is optically connected to the first stage and has a light detector therein. The first stage has a shape which re-images diffusely scattered radiation from a target on which the radiation impinges. The first stage directs light toward an entrance aperture in the second stage which indirectly reflects light toward the detector associated with the second stage.

REFERENCES:
patent: 3663824 (1972-05-01), Blaisdell et al.
patent: 3712979 (1973-01-01), Padgitt
patent: 4321630 (1982-03-01), Kramer
patent: 4360275 (1982-11-01), Louderback
patent: 4378159 (1983-03-01), Galbraith
patent: 4412746 (1983-11-01), Yokouchi

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