JPS54123916A - Optical recorder - Google Patents
Optical recorderInfo
- Publication number
- JPS54123916A JPS54123916A JP3084878A JP3084878A JPS54123916A JP S54123916 A JPS54123916 A JP S54123916A JP 3084878 A JP3084878 A JP 3084878A JP 3084878 A JP3084878 A JP 3084878A JP S54123916 A JPS54123916 A JP S54123916A
- Authority
- JP
- Japan
- Prior art keywords
- sets
- laser
- slits
- light
- recording
- 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
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
Abstract
PURPOSE: To perform well optical recording by so controlling the apparatus that the centers of beams pass through the slits or pinholes in the optical path and defining the relation position of two sets of projection laser spots to a specified state.
CONSTITUTION: Laser light from a laser 6 is bisected by a half mirror 9, is modulated according to recording signals with light modulators 22, 10 and is projected as two sets of light sports onto a grooveless original disc D via convex lens or the like 24, cylindrical lens 13, slit members 25, 15. When the two sets of these laser luminous fluxes are received with the position deviation detectors 31, 30 formed by two sets of photo detectors PD3 and PD4, PD1 and PD2 via half mirror 18, etc. to control the lenses 25, 14, then the laser beams dividedly focus at the slits S2, S1 of the members 25, 15. Hence, even when the length of optical path has changed owing to temperature, etc., the relative positions of two sets of the laser spots are defined constant by two sets of the laser beams whose centers pass through the slits S2, S1, whereby the good recording of adequate pit depth and sectional shape is accomplished.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3084878A JPS54123916A (en) | 1978-03-17 | 1978-03-17 | Optical recorder |
NLAANVRAGE7812171,A NL186205C (en) | 1977-12-17 | 1978-12-14 | DEVICE FOR OPTICAL RECORDING OF SIGNALS ON A RECORD MEDIUM. |
US05/969,444 US4209793A (en) | 1977-12-17 | 1978-12-14 | Apparatus for optically recording signals on a recording medium |
FR7835396A FR2412133B1 (en) | 1977-12-17 | 1978-12-15 | OPTICAL SIGNAL RECORDING APPARATUS ON A RECORDING MEDIUM |
DE2854474A DE2854474C2 (en) | 1977-12-17 | 1978-12-16 | Apparatus for the optical recording of signals on a recording medium |
GB7848843A GB2012996B (en) | 1977-12-17 | 1978-12-18 | Apparatus for optically recording signals on a recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3084878A JPS54123916A (en) | 1978-03-17 | 1978-03-17 | Optical recorder |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54123916A true JPS54123916A (en) | 1979-09-26 |
Family
ID=12315114
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3084878A Pending JPS54123916A (en) | 1977-12-17 | 1978-03-17 | Optical recorder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54123916A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6246445A (en) * | 1985-08-22 | 1987-02-28 | Matsushita Electric Ind Co Ltd | Information recorder |
KR20030019692A (en) * | 2001-08-30 | 2003-03-07 | 삼성전자주식회사 | Method of making multi-beams |
-
1978
- 1978-03-17 JP JP3084878A patent/JPS54123916A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6246445A (en) * | 1985-08-22 | 1987-02-28 | Matsushita Electric Ind Co Ltd | Information recorder |
KR20030019692A (en) * | 2001-08-30 | 2003-03-07 | 삼성전자주식회사 | Method of making multi-beams |
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