Illuminating system for the visual inspection of objects

Details Illuminating system for the visual inspection of objects Illuminating system for the visual inspection of objects

1988-03-30

1990-11-06

Rosenberger, Richard A.

Optics: measuring and testing

Inspection of flaws or impurities

Having predetermined light transmission regions

350601, 356241, F21V 1302

Patent

active

049681397

ABSTRACT:
An illuminating system for the visual inspection of objects is proposed, in which a partly reflecting mirror directing the radiation onto the object is arranged crosswise in the optical path of a light source. An observer optical path is directed onto the object over the side of the partly reflecting mirror remote from the light source. There is also a light trap arranged in such a way that it absorbs the residual radiation not directed onto the object, which passes through the mirror or which is reflected on the mirror surface remote from the object.

REFERENCES:
patent: 2813230 (1957-11-01), Fruengel
patent: 3873212 (1975-03-01), Shell
patent: 3944336 (1976-03-01), Carr
patent: 4242702 (1980-12-01), Kuni et al.
patent: 4300835 (1981-11-01), Schiemann et al.
patent: 4325636 (1982-04-01), Schiffner
patent: 4722607 (1988-02-01), Anselment et al.
patent: 4791534 (1988-12-01), Lindberg

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