Lighting device for inspecting objects for flaws

Details Lighting device for inspecting objects for flaws Lighting device for inspecting objects for flaws

1985-05-20

1987-09-29

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356240, 209526, G01N 2147, B07C 5342

Patent

active

046970762

ABSTRACT:
A lighting device for apparatus detecting flaws in objects having a photoelectric sensor aligned with the object and a processor responsive to the sensor for determining the light received by the sensor. The lighting device includes a ring-shaped lamp and an opaque shield having predetermined light paths controlling the direction of the light from the lamp in a selected direction, so that the light irradiates the object to be inspected in a manner whereby the light is reflected from the object to the sensor only when the object is flawed.

REFERENCES:
patent: 4284353 (1981-08-01), Yoshida et al.
patent: 4424441 (1984-01-01), Bieringer et al.

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