Photosensor device and disk inspection apparatus using it
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United States of America Patent
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Jun 6, 2006
Grant Date -
Jun 27, 2002
app pub date -
Oct 29, 2001
filing date -
Nov 2, 2000
priority date (Note) -
Expired
status (Latency Note)
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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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