JPS52119304A - Optical device - Google Patents
Optical deviceInfo
- Publication number
- JPS52119304A JPS52119304A JP3573676A JP3573676A JPS52119304A JP S52119304 A JPS52119304 A JP S52119304A JP 3573676 A JP3573676 A JP 3573676A JP 3573676 A JP3573676 A JP 3573676A JP S52119304 A JPS52119304 A JP S52119304A
- Authority
- JP
- Japan
- Prior art keywords
- optical device
- light
- recording
- distribution
- 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.)
- Granted
Links
Landscapes
- Optical Head (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE: To control the distribution of light patterns by detecting the shape and light quantity of a light beam in recording of video discs using light beams.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3573676A JPS52119304A (en) | 1976-03-31 | 1976-03-31 | Optical device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3573676A JPS52119304A (en) | 1976-03-31 | 1976-03-31 | Optical device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52119304A true JPS52119304A (en) | 1977-10-06 |
JPS623490B2 JPS623490B2 (en) | 1987-01-26 |
Family
ID=12450102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3573676A Granted JPS52119304A (en) | 1976-03-31 | 1976-03-31 | Optical device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52119304A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61192038A (en) * | 1985-02-20 | 1986-08-26 | Matsushita Electric Ind Co Ltd | Optical information recorder |
JPH05225584A (en) * | 1982-09-07 | 1993-09-03 | Discovision Assoc | Apparatus for display of beam-spot shape |
-
1976
- 1976-03-31 JP JP3573676A patent/JPS52119304A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05225584A (en) * | 1982-09-07 | 1993-09-03 | Discovision Assoc | Apparatus for display of beam-spot shape |
JP2580390B2 (en) * | 1982-09-07 | 1997-02-12 | ディスコビジョン アソシエイツ | Optical disc master creation device |
JPS61192038A (en) * | 1985-02-20 | 1986-08-26 | Matsushita Electric Ind Co Ltd | Optical information recorder |
Also Published As
Publication number | Publication date |
---|---|
JPS623490B2 (en) | 1987-01-26 |
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