JPH056257B2 - - Google Patents
Info
- Publication number
- JPH056257B2 JPH056257B2 JP58236165A JP23616583A JPH056257B2 JP H056257 B2 JPH056257 B2 JP H056257B2 JP 58236165 A JP58236165 A JP 58236165A JP 23616583 A JP23616583 A JP 23616583A JP H056257 B2 JPH056257 B2 JP H056257B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- photodetector
- disk
- lens
- optical head
- 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 31
- 238000001514 detection method Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 239000013078 crystal Substances 0.000 description 4
- 239000004065 semiconductor Substances 0.000 description 4
- 238000010897 surface acoustic wave method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910013641 LiNbO 3 Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000010365 information processing 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
- G02B6/12004—Combinations of two or more optical elements
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
- G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
- G11B7/1245—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides the waveguides including means for electro-optical or acousto-optical deflection
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Optical Head (AREA)
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58236165A JPS60129938A (ja) | 1983-12-16 | 1983-12-16 | 光ヘツド |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58236165A JPS60129938A (ja) | 1983-12-16 | 1983-12-16 | 光ヘツド |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4090607A Division JPH05101416A (ja) | 1992-04-10 | 1992-04-10 | 光ヘツド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60129938A JPS60129938A (ja) | 1985-07-11 |
| JPH056257B2 true JPH056257B2 (enrdf_load_stackoverflow) | 1993-01-26 |
Family
ID=16996728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58236165A Granted JPS60129938A (ja) | 1983-12-16 | 1983-12-16 | 光ヘツド |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60129938A (enrdf_load_stackoverflow) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0795372B2 (ja) * | 1984-06-27 | 1995-10-11 | キヤノン株式会社 | 光ヘツド装置 |
| JPS6289250A (ja) * | 1985-10-16 | 1987-04-23 | Fuji Photo Film Co Ltd | 光デイスク用ピツクアツプ |
| JPH0743845B2 (ja) * | 1985-12-16 | 1995-05-15 | キヤノン株式会社 | 光ヘツド装置 |
| JPS632128A (ja) * | 1986-06-20 | 1988-01-07 | Matsushita Electric Ind Co Ltd | 光ピツクアツプ |
| JP2594970B2 (ja) * | 1986-09-09 | 1997-03-26 | 株式会社日立製作所 | 薄膜光導波路型光ヘツド |
| JPH0622065B2 (ja) * | 1987-02-25 | 1994-03-23 | 株式会社日立製作所 | 集積型光ヘツド |
| US5191624A (en) * | 1990-09-19 | 1993-03-02 | Hitachi, Ltd. | Optical information storing apparatus and method for production of optical deflector |
| JP2828227B2 (ja) * | 1996-11-18 | 1998-11-25 | オリンパス光学工業株式会社 | 光ヘッド |
-
1983
- 1983-12-16 JP JP58236165A patent/JPS60129938A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60129938A (ja) | 1985-07-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5231620A (en) | Magneto-optical recording/reproducing apparatus with light beam splitting means | |
| US5450387A (en) | Optical pickup apparatus for phase changing optical disk | |
| US5930220A (en) | Tracking method for optical disk apparatus using diffraction light | |
| JPH056257B2 (enrdf_load_stackoverflow) | ||
| JP2901728B2 (ja) | 光ヘッド及びそれを用いた情報記録再生装置 | |
| JPH1097753A (ja) | 光ヘッド装置および傾き検出装置および光情報処理装置 | |
| JP2877044B2 (ja) | 光ヘッド装置 | |
| JPH0370859B2 (enrdf_load_stackoverflow) | ||
| JPS6297144A (ja) | 光ピツクアツプ | |
| JPS63247925A (ja) | 光ヘツド | |
| JP2595937B2 (ja) | 光ヘツド装置 | |
| JPH0327978B2 (enrdf_load_stackoverflow) | ||
| JPH056741B2 (enrdf_load_stackoverflow) | ||
| JPH05101416A (ja) | 光ヘツド | |
| JPS62124637A (ja) | 光ピツクアツプ | |
| JP2513237B2 (ja) | 光ヘッド装置 | |
| JPS62124636A (ja) | 光ピツクアツプ | |
| JP2594957B2 (ja) | 光記録再生装置 | |
| JPS61227233A (ja) | 光学的読取装置 | |
| JPS63856B2 (enrdf_load_stackoverflow) | ||
| KR940022435A (ko) | 광 픽업 시스템 | |
| JPH05266500A (ja) | 光ピックアップ装置 | |
| JPS5933643A (ja) | 光ピツクアツプ | |
| JPH02141942A (ja) | 光ピックアップ装置 | |
| JPS63279439A (ja) | 光学ヘッド |