JPS5661045A - Optical information reader - Google Patents
Optical information readerInfo
- Publication number
- JPS5661045A JPS5661045A JP13699779A JP13699779A JPS5661045A JP S5661045 A JPS5661045 A JP S5661045A JP 13699779 A JP13699779 A JP 13699779A JP 13699779 A JP13699779 A JP 13699779A JP S5661045 A JPS5661045 A JP S5661045A
- Authority
- JP
- Japan
- Prior art keywords
- prism
- disc
- light
- polarized
- detection
- 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)
- Optical Head (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13699779A JPS5661045A (en) | 1979-10-25 | 1979-10-25 | Optical information reader |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13699779A JPS5661045A (en) | 1979-10-25 | 1979-10-25 | Optical information reader |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5661045A true JPS5661045A (en) | 1981-05-26 |
JPH0120498B2 JPH0120498B2 (ja) | 1989-04-17 |
Family
ID=15188368
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13699779A Granted JPS5661045A (en) | 1979-10-25 | 1979-10-25 | Optical information reader |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5661045A (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050967A1 (en) * | 1980-10-25 | 1982-05-05 | Olympus Optical Co., Ltd. | Signal detection system for use in an optically operating reproducing apparatus |
US5128919A (en) * | 1987-11-16 | 1992-07-07 | Sony Corporation | Apparatus for reproducing an optically recorded information |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54125005A (en) * | 1978-03-23 | 1979-09-28 | Olympus Optical Co Ltd | Optical reading method |
-
1979
- 1979-10-25 JP JP13699779A patent/JPS5661045A/ja active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54125005A (en) * | 1978-03-23 | 1979-09-28 | Olympus Optical Co Ltd | Optical reading method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0050967A1 (en) * | 1980-10-25 | 1982-05-05 | Olympus Optical Co., Ltd. | Signal detection system for use in an optically operating reproducing apparatus |
US5128919A (en) * | 1987-11-16 | 1992-07-07 | Sony Corporation | Apparatus for reproducing an optically recorded information |
Also Published As
Publication number | Publication date |
---|---|
JPH0120498B2 (ja) | 1989-04-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |