Illumination apparatus and appearance inspection apparatus...

Details Illumination apparatus and appearance inspection apparatus... Illumination apparatus and appearance inspection apparatus...

2011-06-07

2011-06-07

Fuller, Rodney E (Department: 2862)

Photography

With object illumination for exposure

Reexamination Certificate

active

07957636

ABSTRACT:
An illumination apparatus which illuminates a surface of an object having a three-dimensional shape includes a light source, a guide configured to guide light from the light source to a surface of the object, and a diffuser which has a diffusion-reflection surface that faces a light exit surface of the guide via the object, wherein the diffuser is arranged at such a position that the light which is emitted from the guide and is not directly incident on the object is incident on the diffusion-reflection surface while a part of the light reflected and diffused by the diffusion-reflection surface is incident on a surface of the object.

REFERENCES:
patent: 5117249 (1992-05-01), Spector
patent: 2007/0292088 (2007-12-01), Saitoh
patent: 2000-315256 (2000-11-01), None
patent: 2004-194689 (2004-07-01), None
patent: 2007-334216 (2007-12-01), None

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