Optics: measuring and testing – Of light reflection – With diffusion
Reexamination Certificate
2005-09-20
2005-09-20
Stafira, Michael P. (Department: 2877)
Optics: measuring and testing
Of light reflection
With diffusion
C356S071000, C250S556000
Reexamination Certificate
active
06947146
ABSTRACT:
An optical object identification device has a light emission element, an optical system condensing light from the light emission element, a photodetector integrated with a mask provided with a pinhole, and an identification unit for identifying a type of a measurement object by an output waveform from the photodetector.
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Sugiyama Hisakazu
Yamaguchi Akifumi
Sharp Kabushiki Kaisha
Stafira Michael P.
Valentin II Juan D
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