JPS6430028A - Optical head position detecting mechanism - Google Patents
Optical head position detecting mechanismInfo
- Publication number
- JPS6430028A JPS6430028A JP18547487A JP18547487A JPS6430028A JP S6430028 A JPS6430028 A JP S6430028A JP 18547487 A JP18547487 A JP 18547487A JP 18547487 A JP18547487 A JP 18547487A JP S6430028 A JPS6430028 A JP S6430028A
- Authority
- JP
- Japan
- Prior art keywords
- optical
- beams
- optical head
- made incident
- position detecting
- 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.)
- Pending
Links
Landscapes
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Abstract
PURPOSE:To reduce the size and weight of the titled mechanism by combining a part of beams projected from a light source for an optical head with an optical position detector for receiving the beams to detect a position. CONSTITUTION:A semiconductor laser is used as an optical source for a fixed optical system 1, beams are projected as parallel beams 8 and the parallel beams 8 are made incident upon an optical pickup 2 and focused on an optical disk by an objective lens 3 through a beam splitter 6. On the other hand, a part of the parallel beams 8 is separated by the beam splitter 6 and made incident upon an optical position detector 5 through a condenser lens 7. Since the separated beams are made incident upon the detector 5, the position of the optical head can be extracted as an electric signal and the position of the optical head can be detected. Consequently, the size and weight of the mechanism can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547487A JPS6430028A (en) | 1987-07-27 | 1987-07-27 | Optical head position detecting mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18547487A JPS6430028A (en) | 1987-07-27 | 1987-07-27 | Optical head position detecting mechanism |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430028A true JPS6430028A (en) | 1989-01-31 |
Family
ID=16171398
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18547487A Pending JPS6430028A (en) | 1987-07-27 | 1987-07-27 | Optical head position detecting mechanism |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430028A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61280030A (en) * | 1985-06-05 | 1986-12-10 | Toshiba Corp | Recording and reproducing device for optical disk |
-
1987
- 1987-07-27 JP JP18547487A patent/JPS6430028A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61280030A (en) * | 1985-06-05 | 1986-12-10 | Toshiba Corp | Recording and reproducing device for optical disk |
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