JPH0424770B2 - - Google Patents
Info
- Publication number
- JPH0424770B2 JPH0424770B2 JP57155458A JP15545882A JPH0424770B2 JP H0424770 B2 JPH0424770 B2 JP H0424770B2 JP 57155458 A JP57155458 A JP 57155458A JP 15545882 A JP15545882 A JP 15545882A JP H0424770 B2 JPH0424770 B2 JP H0424770B2
- Authority
- JP
- Japan
- Prior art keywords
- beams
- optical
- recording
- angle
- light
- 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.)
- Expired - Lifetime
Links
- 230000003287 optical effect Effects 0.000 claims description 66
- 230000010287 polarization Effects 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 7
- 230000010355 oscillation Effects 0.000 claims description 6
- 239000002609 medium Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000002612 dispersion medium Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57155458A JPS5945641A (ja) | 1982-09-07 | 1982-09-07 | 複数ビ−ム・光学ヘツド |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57155458A JPS5945641A (ja) | 1982-09-07 | 1982-09-07 | 複数ビ−ム・光学ヘツド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5945641A JPS5945641A (ja) | 1984-03-14 |
| JPH0424770B2 true JPH0424770B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1992-04-28 |
Family
ID=15606482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57155458A Granted JPS5945641A (ja) | 1982-09-07 | 1982-09-07 | 複数ビ−ム・光学ヘツド |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5945641A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59135525U (ja) * | 1983-02-25 | 1984-09-10 | パイオニア株式会社 | 光学装置 |
| JPS62109242A (ja) * | 1985-11-07 | 1987-05-20 | Omron Tateisi Electronics Co | ダブルビ−ム光ヘツド |
| JPH0827971B2 (ja) * | 1990-09-25 | 1996-03-21 | インターナショナル・ビジネス・マシーンズ・コーポレイション | 複数ビーム式光記録のためのシステム |
-
1982
- 1982-09-07 JP JP57155458A patent/JPS5945641A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5945641A (ja) | 1984-03-14 |