Illuminator for visual inspection of curved specular surfaces

Details Illuminator for visual inspection of curved specular surfaces Illuminator for visual inspection of curved specular surfaces

1986-08-04

1988-03-01

Husar, Stephen F.

Illumination

Light modifier

Reflector

362 32, 362247, F21V 700

Patent

active

047290790

ABSTRACT:
An illuminator for providing high contrast illumination of curved surfaces is provided comprising a diffuse spherical reflector having an aperture at its peak. A source of radiant energy distributed along a ring, illuminates the interior of the reflector, which in turn illuminates the curved surfaces situated at the center of a sphere of which the spherical reflector is a part. Light reflected from the curved surfaces is reflected through the aperture.

REFERENCES:
patent: 261037 (1882-07-01), Plympton
patent: 1413315 (1922-04-01), Correll
patent: 1648955 (1927-11-01), McGinnis
patent: 2447923 (1948-08-01), Tuck
patent: 2507909 (1950-05-01), Kayser
patent: 3786243 (1974-01-01), Ilzig et al.
patent: 4242727 (1980-12-01), de Vos
patent: 4459647 (1984-07-01), Yamauchi et al.
patent: 4651262 (1987-03-01), Piironen

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