JPS6115496B2 - - Google Patents
Info
- Publication number
- JPS6115496B2 JPS6115496B2 JP55146525A JP14652580A JPS6115496B2 JP S6115496 B2 JPS6115496 B2 JP S6115496B2 JP 55146525 A JP55146525 A JP 55146525A JP 14652580 A JP14652580 A JP 14652580A JP S6115496 B2 JPS6115496 B2 JP S6115496B2
- Authority
- JP
- Japan
- Prior art keywords
- beam splitter
- light source
- reflecting mirror
- light
- optical pickup
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 20
- 239000004065 semiconductor Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012536 packaging technology Methods 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 Recording Or Reproduction (AREA)
- Optical Head (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55146525A JPS5771537A (en) | 1980-10-20 | 1980-10-20 | Optical pickup device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55146525A JPS5771537A (en) | 1980-10-20 | 1980-10-20 | Optical pickup device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5771537A JPS5771537A (en) | 1982-05-04 |
| JPS6115496B2 true JPS6115496B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1986-04-24 |
Family
ID=15409616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55146525A Granted JPS5771537A (en) | 1980-10-20 | 1980-10-20 | Optical pickup device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771537A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58200443A (ja) * | 1982-05-19 | 1983-11-22 | Matsushita Electric Ind Co Ltd | 光学的記録再生装置の光学装置 |
| FR2584223B1 (fr) * | 1985-06-28 | 1994-06-17 | Thomson Alcatel Gigadisc | Memoire optique a suivi de piste echantillonne pour support d'information pregrave. |
| JP2786484B2 (ja) * | 1989-01-25 | 1998-08-13 | オリンパス光学工業株式会社 | 光磁気再生装置 |
| JPH03106525U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1990-02-20 | 1991-11-05 | ||
| US5563870A (en) * | 1995-02-14 | 1996-10-08 | Eastman Kodak Company | Optical write/read head with laser power control |
-
1980
- 1980-10-20 JP JP55146525A patent/JPS5771537A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5771537A (en) | 1982-05-04 |