Photosensor device and disk inspection apparatus using it

Details Photosensor device and disk inspection apparatus using it Photosensor device and disk inspection apparatus using it

2006-06-06

2006-06-06

Bruce, David V. (Department: 2882)

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

C250S559010

Reexamination Certificate

active

07057157

ABSTRACT:
A photosensor device is provided which includes a light-applying fiber to apply an inspection light to a subject to be inspected; a light-receiving fiber to receive a reflected light from the subject to be inspected; a laser beam source to emit the inspection light to the light-applying fiber; and a photosensor to receive the reflected light via the light-receiving fiber. A disk inspection apparatus for inspecting surface conditions of a disk is also provided which includes a turning table for rotating the disk; a photosensor body disposed opposite to the surface of the disk; and a transfer mechanism for reciprocally transferring the photosensor body in a direction perpendicular to a rotating direction of the disk along the surface of the disk; wherein the photosensor device is utilized as the photosensor body.

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