JPS5483810A - Optical recording method - Google Patents
Optical recording methodInfo
- Publication number
- JPS5483810A JPS5483810A JP15225277A JP15225277A JPS5483810A JP S5483810 A JPS5483810 A JP S5483810A JP 15225277 A JP15225277 A JP 15225277A JP 15225277 A JP15225277 A JP 15225277A JP S5483810 A JPS5483810 A JP S5483810A
- Authority
- JP
- Japan
- Prior art keywords
- light flux
- diffracted lights
- recording
- intensities
- orders
- 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
Abstract
PURPOSE: To make the longitudinal section of a recording bit into a satisfactory shape by dividing the modulated flat light flux for recording, which contain diffracted lights of high order, into the diffracted lights of zero and first orders, the intensities of which are adjusted.
CONSTITUTION: The laser light flux, the intensity of which is optically codulated in accordance with recording signals , is converted into a flat light flux containing diffracted lights of high order, through a cylindrical lends 8c, a shielding member 8d, a cylindrical lens 8e and a reflecting mirror 9. The light flux is converted through a slit SL of a preset width into diffracted lights of zero and first orders, the intensities of which are adjusted, to illuminate the positive type photoresist of an original disc D which is turned together with a turntable 1. As a result, the longitudinal shape of the recording bit is changed into a satisfactory rectangular shape by the light flux having a preset intensity distribution according to the width wise signals. As a the excellent result, even if a contact type reproducing element is used, it is possible to effect reproduction of less noise and to reduce the damage of the reproducing element.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15225277A JPS5483810A (en) | 1977-12-17 | 1977-12-17 | Optical recording method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15225277A JPS5483810A (en) | 1977-12-17 | 1977-12-17 | Optical recording method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5483810A true JPS5483810A (en) | 1979-07-04 |
| JPS6149730B2 JPS6149730B2 (en) | 1986-10-30 |
Family
ID=15536410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15225277A Granted JPS5483810A (en) | 1977-12-17 | 1977-12-17 | Optical recording method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5483810A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57176014A (en) * | 1981-04-21 | 1982-10-29 | Fujitsu Ltd | Combined lens |
| JPS61236026A (en) * | 1985-04-10 | 1986-10-21 | Matsushita Electric Ind Co Ltd | Method of recording information recording master disk |
| JPS6380243A (en) * | 1986-09-24 | 1988-04-11 | Nikon Corp | Illuminating optical device for exposing device |
| EP0411525A2 (en) * | 1989-08-02 | 1991-02-06 | Hitachi, Ltd. | A method of making optical disk master and an optical disk |
| KR20030019692A (en) * | 2001-08-30 | 2003-03-07 | 삼성전자주식회사 | Method of making multi-beams |
| JP2016091006A (en) * | 2014-11-04 | 2016-05-23 | オリンパス株式会社 | Sheet-illuminated microscope, and sheet-illuminating method |
-
1977
- 1977-12-17 JP JP15225277A patent/JPS5483810A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57176014A (en) * | 1981-04-21 | 1982-10-29 | Fujitsu Ltd | Combined lens |
| JPS61236026A (en) * | 1985-04-10 | 1986-10-21 | Matsushita Electric Ind Co Ltd | Method of recording information recording master disk |
| JPS6380243A (en) * | 1986-09-24 | 1988-04-11 | Nikon Corp | Illuminating optical device for exposing device |
| EP0411525A2 (en) * | 1989-08-02 | 1991-02-06 | Hitachi, Ltd. | A method of making optical disk master and an optical disk |
| US5581531A (en) * | 1989-08-02 | 1996-12-03 | Hitachi, Ltd. | Method of making optical disk master and an optical disk |
| KR20030019692A (en) * | 2001-08-30 | 2003-03-07 | 삼성전자주식회사 | Method of making multi-beams |
| JP2016091006A (en) * | 2014-11-04 | 2016-05-23 | オリンパス株式会社 | Sheet-illuminated microscope, and sheet-illuminating method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6149730B2 (en) | 1986-10-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0346844A3 (en) | Optical head apparatus | |
| TW328129B (en) | Compact disk and its driving device | |
| JPS5647933A (en) | Optical signal head | |
| CA2241544A1 (en) | Method and device for recording a refractive index pattern in an optical medium | |
| JPS5558832A (en) | Signal recording and reproducing unit of optical type | |
| JPS5266405A (en) | Optical recording system of information recording discs | |
| JPS54128303A (en) | Optical reproducing device of information recording medium disc | |
| JPS5483810A (en) | Optical recording method | |
| CA2041928A1 (en) | Optical head | |
| JPS6455746A (en) | Optical pickup device | |
| JPS6482348A (en) | Overwritable magneto-optical disk device | |
| JPS55125546A (en) | Information recorder | |
| JPS5622231A (en) | Optical disk duplicator | |
| JPS5445156A (en) | Optical system | |
| JPS5617318A (en) | Hologram scanner | |
| JPS5348504A (en) | Optical recorder/reproducer | |
| MY116906A (en) | Optical recording and reproducing device | |
| JPS5237007A (en) | Optical recording reproducing equipment | |
| JPS6452240A (en) | Magneto-optical recording and reproducing device | |
| JPS5348704A (en) | Optical signal regenerator | |
| JPS5315105A (en) | Spacing detector of optical recorder/reproducer | |
| JPS52119952A (en) | Signal recorder using acousto/optic light modulator | |
| JPS5362502A (en) | Optical recording-reproducing apparatus | |
| JPS5694530A (en) | Optical signal reader | |
| JPS57203233A (en) | Optical recorder and reproducer |