Optical object identification device and printing apparatus...

Details Optical object identification device and printing apparatus... Optical object identification device and printing apparatus...

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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