JPS55139642A - Optical information recording and reproducing device - Google Patents
Optical information recording and reproducing deviceInfo
- Publication number
- JPS55139642A JPS55139642A JP4845679A JP4845679A JPS55139642A JP S55139642 A JPS55139642 A JP S55139642A JP 4845679 A JP4845679 A JP 4845679A JP 4845679 A JP4845679 A JP 4845679A JP S55139642 A JPS55139642 A JP S55139642A
- Authority
- JP
- Japan
- Prior art keywords
- light
- strike
- control signal
- recording surface
- detector
- 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.)
- Granted
Links
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4845679A JPS55139642A (en) | 1979-04-18 | 1979-04-18 | Optical information recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4845679A JPS55139642A (en) | 1979-04-18 | 1979-04-18 | Optical information recording and reproducing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55139642A true JPS55139642A (en) | 1980-10-31 |
JPS6123572B2 JPS6123572B2 (ja) | 1986-06-06 |
Family
ID=12803850
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4845679A Granted JPS55139642A (en) | 1979-04-18 | 1979-04-18 | Optical information recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55139642A (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133526A (en) * | 1981-02-10 | 1982-08-18 | Sharp Corp | Processor of optical information |
EP0068390A2 (en) * | 1981-06-22 | 1983-01-05 | Kabushiki Kaisha Toshiba | An optical head |
EP0070552A2 (en) * | 1981-07-20 | 1983-01-26 | Kabushiki Kaisha Toshiba | Optical head |
US4497048A (en) * | 1981-04-22 | 1985-01-29 | Olympus Optical Co. Ltd. | Technique for controlling tracking in an optical disc apparatus |
US4755454A (en) * | 1983-03-29 | 1988-07-05 | Fuji Photo Film Co., Ltd. | Element having a silver halide photographic layer on a polyolefin coated paper base |
-
1979
- 1979-04-18 JP JP4845679A patent/JPS55139642A/ja active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57133526A (en) * | 1981-02-10 | 1982-08-18 | Sharp Corp | Processor of optical information |
JPS6223373B2 (ja) * | 1981-02-10 | 1987-05-22 | Sharp Kk | |
US4497048A (en) * | 1981-04-22 | 1985-01-29 | Olympus Optical Co. Ltd. | Technique for controlling tracking in an optical disc apparatus |
EP0068390A2 (en) * | 1981-06-22 | 1983-01-05 | Kabushiki Kaisha Toshiba | An optical head |
EP0070552A2 (en) * | 1981-07-20 | 1983-01-26 | Kabushiki Kaisha Toshiba | Optical head |
EP0070552B1 (en) * | 1981-07-20 | 1990-06-27 | Kabushiki Kaisha Toshiba | Optical head |
US4755454A (en) * | 1983-03-29 | 1988-07-05 | Fuji Photo Film Co., Ltd. | Element having a silver halide photographic layer on a polyolefin coated paper base |
Also Published As
Publication number | Publication date |
---|---|
JPS6123572B2 (ja) | 1986-06-06 |
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