JPH0321973B2 - - Google Patents
Info
- Publication number
- JPH0321973B2 JPH0321973B2 JP56111191A JP11119181A JPH0321973B2 JP H0321973 B2 JPH0321973 B2 JP H0321973B2 JP 56111191 A JP56111191 A JP 56111191A JP 11119181 A JP11119181 A JP 11119181A JP H0321973 B2 JPH0321973 B2 JP H0321973B2
- Authority
- JP
- Japan
- Prior art keywords
- face
- laser light
- prism
- semiconductor laser
- light source
- 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 29
- 239000004065 semiconductor Substances 0.000 claims description 19
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- GNLJOAHHAPACCT-UHFFFAOYSA-N 4-diethoxyphosphorylmorpholine Chemical compound CCOP(=O)(OCC)N1CCOCC1 GNLJOAHHAPACCT-UHFFFAOYSA-N 0.000 description 1
- 230000005374 Kerr effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000007738 vacuum evaporation Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
- G11B11/10532—Heads
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Optical Elements Other Than Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56111191A JPS5812148A (ja) | 1981-07-14 | 1981-07-14 | 光学ヘッド |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56111191A JPS5812148A (ja) | 1981-07-14 | 1981-07-14 | 光学ヘッド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5812148A JPS5812148A (ja) | 1983-01-24 |
| JPH0321973B2 true JPH0321973B2 (US08066781-20111129-C00013.png) | 1991-03-25 |
Family
ID=14554800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56111191A Granted JPS5812148A (ja) | 1981-07-14 | 1981-07-14 | 光学ヘッド |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5812148A (US08066781-20111129-C00013.png) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4643366A (en) * | 1985-07-10 | 1987-02-17 | Kawasaki Jukogyo Kabushiki Kaisha | Roller mill |
| JPS62212111A (ja) * | 1986-03-14 | 1987-09-18 | Mitsubishi Rayon Eng Co Ltd | 連続加圧方法 |
| JPS62266743A (ja) * | 1986-05-14 | 1987-11-19 | Asahi Optical Co Ltd | 光デイスクの情報記録・再生装置 |
| JPS6339310A (ja) * | 1986-08-05 | 1988-02-19 | Mitsubishi Rayon Eng Co Ltd | 連続加圧装置 |
| DE3719976A1 (de) * | 1987-06-15 | 1988-12-29 | Hymmen Theodor Gmbh | Verfahren und vorrichtung zum aufbringen einer flaechenpressung auf pressbandgetriebene werkstuecke |
| JP2544639B2 (ja) * | 1987-11-30 | 1996-10-16 | コニカ株式会社 | 光ピックアップ |
| JPH0298832A (ja) * | 1988-10-04 | 1990-04-11 | Yokogawa Electric Corp | 光学ヘッド |
-
1981
- 1981-07-14 JP JP56111191A patent/JPS5812148A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5812148A (ja) | 1983-01-24 |
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