Patent ID: 7820959
Filing Date: 2010-10-26
Classification: H01L

Abstract:
1. 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 wherein: the laser diode-facing surface of the light receiving portion is located between the laser diode-facing surface of the photodiode and the laser diode-facing surface of the peripheral portion, the laser diode-facing surface of the light receiving portion is parallel to the laser diode-facing surface of the photodiode, and a periphery of the concave portion is inclined toward the light receiving portion so that an open area of the concave portion becomes smaller toward the laser diode-facing surface of the light receiving portion from the laser diode-facing surface of the peripheral portion.