Radiant energy – Photocells; circuits and apparatus – Housings
Reexamination Certificate
2007-08-16
2010-10-26
Luu, Thanh X (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
Housings
C250S216000, C250S551000, C257S081000, C369S112230
Reexamination Certificate
active
07820959
ABSTRACT:
A photodetector to be incorporated in an optical pickup device, comprising: a photodiode that a laser light emitted from a laser diode is applied to and that outputs a signal corresponding to light amount of the laser light; and a translucent resin member configured to cover the photodiode, including a light receiving portion that the laser light is applied to and that causes the laser light to be applied to the photodiode, and a peripheral portion provided around the light receiving portion, the light receiving portion being smaller in thickness than the peripheral portion.
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Kawabuchi Kenichirou
Kawasaki Ryoichi
Fish & Richardson P.C.
Luu Thanh X
Sanyo Electric Co,. Ltd.
Sanyo Optec Design Co., Ltd.
Wyatt Kevin
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