DE69420214D1 - Optischer Abtastkopf und optischer Detektor dafür - Google Patents
Optischer Abtastkopf und optischer Detektor dafürInfo
- Publication number
- DE69420214D1 DE69420214D1 DE69420214T DE69420214T DE69420214D1 DE 69420214 D1 DE69420214 D1 DE 69420214D1 DE 69420214 T DE69420214 T DE 69420214T DE 69420214 T DE69420214 T DE 69420214T DE 69420214 D1 DE69420214 D1 DE 69420214D1
- Authority
- DE
- Germany
- Prior art keywords
- optical
- scanning head
- detector therefor
- optical scanning
- optical detector
- 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 - Fee Related
Links
- 230000003287 optical effect Effects 0.000 title 2
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
- G11B7/13—Optical detectors therefor
- G11B7/131—Arrangement of detectors in a multiple array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/1443—Devices controlled by radiation with at least one potential jump or surface barrier
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- Optical Head (AREA)
- Light Receiving Elements (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15470393 | 1993-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69420214D1 true DE69420214D1 (de) | 1999-09-30 |
DE69420214T2 DE69420214T2 (de) | 2000-03-23 |
Family
ID=15590113
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69420214T Expired - Fee Related DE69420214T2 (de) | 1993-06-25 | 1994-06-23 | Optischer Abtastkopf und optischer Detektor dafür |
Country Status (3)
Country | Link |
---|---|
US (1) | US5532999A (de) |
EP (1) | EP0634742B1 (de) |
DE (1) | DE69420214T2 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5648950A (en) * | 1994-10-25 | 1997-07-15 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Hologram integrated with a beam splitter to separate a plurality of polarized reflected light beams |
KR100200857B1 (ko) * | 1995-10-04 | 1999-06-15 | 윤종용 | 광픽업장치 |
GB2312346B (en) * | 1996-04-20 | 2000-07-12 | Northern Telecom Ltd | Marshalling in optical tdma systems |
KR19990036225A (ko) | 1996-06-07 | 1999-05-25 | 이데이 노부유끼 | 광 픽업 장치 |
JP3533836B2 (ja) * | 1996-08-08 | 2004-05-31 | ミツミ電機株式会社 | 光ディスクドライブのミラー信号演算回路 |
JP3435067B2 (ja) | 1998-08-06 | 2003-08-11 | シャープ株式会社 | 光ピックアップ装置 |
JP4446507B2 (ja) * | 1999-02-03 | 2010-04-07 | 株式会社キーエンス | 光検出器のヘッド部 |
JP4156484B2 (ja) * | 2003-09-30 | 2008-09-24 | シャープ株式会社 | 光ピックアップ |
JP4379209B2 (ja) * | 2004-06-07 | 2009-12-09 | ソニー株式会社 | 光ヘッド装置、記録再生装置、トラッキングエラー信号生成方法 |
JP4805292B2 (ja) * | 2008-02-08 | 2011-11-02 | シャープ株式会社 | 光ピックアップ装置、再生装置、記録装置およびトラッキングエラー信号生成方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5623788A (en) * | 1979-07-31 | 1981-03-06 | Fujitsu Ltd | Semiconductor light receiving element |
JPH0633537Y2 (ja) * | 1984-06-30 | 1994-08-31 | ソニ−株式会社 | 感光性半導体装置 |
JPH07101517B2 (ja) * | 1985-03-19 | 1995-11-01 | 松下電器産業株式会社 | 光検出素子 |
JPS63103448A (ja) * | 1986-10-20 | 1988-05-09 | Sony Corp | 光検出器 |
US5189297A (en) * | 1988-08-29 | 1993-02-23 | Santa Barbara Research Center | Planar double-layer heterojunction HgCdTe photodiodes and methods for fabricating same |
JPH04195938A (ja) * | 1990-11-28 | 1992-07-15 | Olympus Optical Co Ltd | 光学的情報記録再生装置 |
JPH04205727A (ja) * | 1990-11-29 | 1992-07-27 | Matsushita Electric Ind Co Ltd | 光学ヘッド |
JP2705326B2 (ja) * | 1991-02-19 | 1998-01-28 | 日本電気株式会社 | 光磁気ヘッド装置 |
JPH0567340A (ja) * | 1991-09-09 | 1993-03-19 | Seiko Epson Corp | 光学ヘツド及びその信号検出手段 |
JPH05334712A (ja) * | 1992-06-02 | 1993-12-17 | Hitachi Ltd | 光情報処理装置 |
-
1994
- 1994-06-22 US US08/263,549 patent/US5532999A/en not_active Expired - Lifetime
- 1994-06-23 EP EP94109716A patent/EP0634742B1/de not_active Expired - Lifetime
- 1994-06-23 DE DE69420214T patent/DE69420214T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0634742B1 (de) | 1999-08-25 |
US5532999A (en) | 1996-07-02 |
EP0634742A1 (de) | 1995-01-18 |
DE69420214T2 (de) | 2000-03-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |