发明授权
- 专利标题： Integrated optical information detector for an optical information processing apparatus with a plurality of photo detecting strips and a common bonding pad
- 专利标题（中）： 一种用于具有多个光检测条和公共接合焊盘的光信息处理装置的集成光信息检测器
-
申请号： US69511申请日： 1993-06-01
-
公开(公告)号： US5404009A公开(公告)日： 1995-04-04
- 发明人: Hidehiko Kando , Mamoru Kainuma , Masaru Muranishi , Katsuhiko Kimura
- 申请人： Hidehiko Kando , Mamoru Kainuma , Masaru Muranishi , Katsuhiko Kimura
- 申请人地址： JPX Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-141311 19920602
- 主分类号： G11B7/13
- IPC分类号： G11B7/13 ; G11B7/135 ; H01J5/16
摘要：
An information processing apparatus such as an optical disc device which is provided with an integrated photo detector for transducing a reflected light beam from an optical information medium to an electric signal. The integrated photo detector used in the apparatus comprises a substrate; an optical guide formed on the substrate; and a plurality of integrated photo detecting sections each including a grating coupler for guiding the reflected light beam to the optical guide, and a photo detecting unit for detecting a guided light beam in the optical guide. The use of this integrated photo detector results in increasing error tolerance relative to incident angle and incident position to improve the incidence efficiency, thereby elevating the reliability of the apparatus.
公开/授权文献
- US4861324A Apparatus for manufacturing tobacco filter 公开/授权日：1989-08-29
信息查询
IPC分类:
