CN1270305C - 数字通用光盘光学头 - Google Patents
数字通用光盘光学头 Download PDFInfo
- Publication number
- CN1270305C CN1270305C CN 200410089334 CN200410089334A CN1270305C CN 1270305 C CN1270305 C CN 1270305C CN 200410089334 CN200410089334 CN 200410089334 CN 200410089334 A CN200410089334 A CN 200410089334A CN 1270305 C CN1270305 C CN 1270305C
- Authority
- CN
- China
- Prior art keywords
- plane
- light source
- optical
- laser light
- beam splitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410089334 CN1270305C (zh) | 2004-12-09 | 2004-12-09 | 数字通用光盘光学头 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410089334 CN1270305C (zh) | 2004-12-09 | 2004-12-09 | 数字通用光盘光学头 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1619671A CN1619671A (zh) | 2005-05-25 |
CN1270305C true CN1270305C (zh) | 2006-08-16 |
Family
ID=34766198
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200410089334 Expired - Fee Related CN1270305C (zh) | 2004-12-09 | 2004-12-09 | 数字通用光盘光学头 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1270305C (zh) |
-
2004
- 2004-12-09 CN CN 200410089334 patent/CN1270305C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1619671A (zh) | 2005-05-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: SHANGHAI OPTICS AND PRECISION MECHANICS INSTITUTE Free format text: FORMER OWNER: SHANGHAI OPTICS AND PRECISION MECHANICS INSTITUTE, CHINESE ACADEMY OF SCIENCES Effective date: 20080912 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20080912 Address after: Shanghai 800-211 post office mailbox: 201800 Co-patentee after: Shanghai Xinhui Shidai Optical Disk Technology Co., Ltd. Patentee after: Shanghai Institute of Optics and Fine Mechanics.CAS, Chinese Academy of Sciences Address before: Shanghai 800-211 post office mailbox: 201800 Patentee before: Shanghai Optical Precision Machinery Inst., Chinese Academy of Sciences |
|
C17 | Cessation of patent right | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060816 Termination date: 20121209 |