Invention Grant
- Patent Title: Photodetector and optical pickup apparatus including the same
- Patent Title (中): 包括其的光检测器和光拾取装置
-
Application No.: US12182098Application Date: 2008-07-29
-
Publication No.: US08213286B2Publication Date: 2012-07-03
- Inventor: Tohru Hotta , Ryoichi Kawasaki
- Applicant: Tohru Hotta , Ryoichi Kawasaki
- Applicant Address: JP Osaka JP Tokyo
- Assignee: Sanyo Electric Co., Ltd.,Sanyo Optec Design Co., Ltd.
- Current Assignee: Sanyo Electric Co., Ltd.,Sanyo Optec Design Co., Ltd.
- Current Assignee Address: JP Osaka JP Tokyo
- Agency: Fish & Richardson P.C.
- Priority: JP2007-196924 20070730; JP2008-185517 20080717
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
A photodetector comprising: a substrate; a photodiode fixed to the substrate, the photodiode configured to output a signal according to a light amount of a laser beam when applied with the laser beam; and a translucent resin covering the photodiode, the translucent resin being irradiated with ultraviolet light in advance for a predetermined time such that a change in transmittance of the translucent resin for the laser beam having a predetermined wavelength is set within a predetermined range.
Public/Granted literature
- US20090034392A1 PHOTODETECTOR AND OPTICAL PICKUP APPARATUS INCLUDING THE SAME Public/Granted day:2009-02-05
Information query
IPC分类:
