Light path structure for picking up signal in laser reading head |
Title： |
| Light path structure for picking up signal in laser reading head |
|
Application Number： |
200610061769 |
Application Date： |
2006/07/19 |
Announcement Date： |
2007/07/25 |
Pub. Date： |
|
Publication Number： |
101004926 |
Announcement Number： |
|
Grant Date： |
|
Granted Pub. Date： |
|
ApplicationType： |
Invention |
State/Country： |
94[China|shenzhen] |
IPC： |
G11B 7/135, G11B 7/12 |
Applicant(s)： |
Shenzhen Graduate School, Tsinghua Univ. |
Inventor(s)： |
Ma Jianshe, Li Lihua, Yan Shuang, Cheng Xuemin, Ma Leshan, Pan Longfa, Zhang Lei, Li Hui, Lu Junhui, Wang Yuxiu, Sun Manlong, Yang Mingsheng |
Key Words： |
laser reading head, signal, picking up, light path structure |
Abstract： |
A signal pick-up light path structure of laser fetching head consists of reflection beam from disc, single lens, and cylindrical mirror and PDIC protection glass. It is featured as setting flat glass used for increasing astigmation effect between single lens and cylindrical mirror. |
Claim： |
|
Priority： |
|
PCT： |
|
LegalStatus： |
|
Relevancy information
