Image analysis – Applications – Manufacturing or product inspection
Patent
1996-06-05
2000-11-14
Couso, Jose L.
Image analysis
Applications
Manufacturing or product inspection
382144, 382145, G06K 900
Patent
active
061480975
ABSTRACT:
An optical member inspection apparatus includes an inspection optical system having a light source, and a diffusing means for diffusing the light emitted from the light source. The diffusing means has a central portion and a peripheral portion. The diffusion transmittance of the peripheral portion is higher than the diffusion transmittance of the central portion. The inspection optical system is also provided with an image pick-up means to pick-up an image of the optical member to be inspected, and is positioned so as to receive that light emitted from the light source and transmitted through the diffusing means and the optical member. A judging means is also provided, for judging whether or not the optical member has a defect, in accordance with image signals output from the image pick-up means.
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Hara Masato
Kida Atsushi
Nakayama Toshihiro
Sugiura Masayuki
Asahi Kogaku Kogyo Kabushiki Kaisha
Couso Jose L.
Dang Duy M.
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