ATE36617T1 - Optisches aufzeichnungsgeraet. - Google Patents
Optisches aufzeichnungsgeraet.Info
- Publication number
- ATE36617T1 ATE36617T1 AT82107867T AT82107867T ATE36617T1 AT E36617 T1 ATE36617 T1 AT E36617T1 AT 82107867 T AT82107867 T AT 82107867T AT 82107867 T AT82107867 T AT 82107867T AT E36617 T1 ATE36617 T1 AT E36617T1
- Authority
- AT
- Austria
- Prior art keywords
- sub
- light
- spots
- light spots
- guide groove
- Prior art date
Links
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
- 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
- G11B7/0901—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 for track following only
- G11B7/0903—Multi-beam tracking systems
-
- 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
- G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
- Optical Head (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56134070A JPH0675297B2 (ja) | 1981-08-28 | 1981-08-28 | 光学的情報記録再生装置 |
EP82107867A EP0073066B1 (de) | 1981-08-28 | 1982-08-26 | Optisches Aufzeichnungsgerät |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE36617T1 true ATE36617T1 (de) | 1988-09-15 |
Family
ID=15119670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT82107867T ATE36617T1 (de) | 1981-08-28 | 1982-08-26 | Optisches aufzeichnungsgeraet. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4532522A (de) |
EP (1) | EP0073066B1 (de) |
JP (1) | JPH0675297B2 (de) |
AT (1) | ATE36617T1 (de) |
CA (1) | CA1182911A (de) |
DE (1) | DE3278923D1 (de) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4695992A (en) * | 1983-01-31 | 1987-09-22 | Canon Kabushiki Kaisha | Optical information recording-reproducing apparatus in which the relative position of a primary beam and secondary beams on recording medium is varied during recording and reproduction of information |
JPS59198542A (ja) * | 1983-04-26 | 1984-11-10 | Sony Corp | 光学デイスクプレ−ヤ |
DE3323007C1 (de) * | 1983-06-25 | 1984-06-28 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Spurfolgesystem mit einem optischen Abtaster für ein Audio- oder Video-Plattenwiedergabegerät |
NL8303564A (nl) * | 1983-10-17 | 1985-05-17 | Philips Nv | Inrichting voor het weergeven van informatie van een optisch uitleesbare registratiedrager. |
DE3339736C1 (de) * | 1983-11-03 | 1985-06-05 | Deutsche Thomson-Brandt Gmbh, 7730 Villingen-Schwenningen | Spurfolgesystem zur Korrektur von Tangentenfehlwinkeln bei optischer Plattenabtastung |
US4703408A (en) * | 1983-11-28 | 1987-10-27 | Hitachi, Ltd. | Apparatus and record carrier for optically writing information |
US4720825A (en) * | 1984-02-06 | 1988-01-19 | Asahi Kogaku Kogyo Kabushiki Kaisha | Optical data reproducing devices having improved trick play capability |
US4652722A (en) * | 1984-04-05 | 1987-03-24 | Videojet Systems International, Inc. | Laser marking apparatus |
US4773052A (en) * | 1984-09-20 | 1988-09-20 | Pioneer Electronic Corporation | Dual mode disk player/recorder |
NL8601876A (nl) * | 1986-07-18 | 1988-02-16 | Philips Nv | Inrichting voor het aftasten van een optische registratiedrager. |
JPH0675307B2 (ja) * | 1987-01-30 | 1994-09-21 | 富士写真フイルム株式会社 | 光磁気記録媒体用ピツクアツプ |
US4998234A (en) * | 1987-03-31 | 1991-03-05 | Rees Theodore D | Logarithmic servo error detection for optical disk drive |
JP2649231B2 (ja) * | 1987-11-20 | 1997-09-03 | 株式会社 日本コンラックス | 光学的情報再生装置 |
NL8703041A (nl) * | 1987-12-16 | 1989-07-17 | Philips Nv | Optische aftasteenheid en een optische uitlees- en/of inschrijfinrichting daarvan voorzien. |
JPH01171129A (ja) * | 1987-12-25 | 1989-07-06 | Copal Co Ltd | 光学ヘッド及びトラッキング方法 |
US5224082A (en) * | 1988-02-26 | 1993-06-29 | Fujitsu Limited | Method for detecting tracking error in optical disk system and its optical system devices thereof |
JPH0642288B2 (ja) * | 1988-03-17 | 1994-06-01 | シャープ株式会社 | 光学式ピックアップ装置 |
JPH01237940A (ja) * | 1988-03-18 | 1989-09-22 | Csk Corp | 光記録装置 |
JPH01269240A (ja) * | 1988-04-20 | 1989-10-26 | Csk Corp | 光記録装置 |
US5073888A (en) * | 1988-04-21 | 1991-12-17 | Ricoh Company, Ltd. | Optical pickup device |
DE68923833T2 (de) * | 1988-06-20 | 1996-06-13 | Mitsubishi Electric Corp | Optischer Kopf mit Kippkorrekturservomechanismus. |
US4982395A (en) * | 1988-10-03 | 1991-01-01 | Storage Technology Partners Ii | Composite optical grating for optical disk data storage systems |
EP0392777B1 (de) * | 1989-04-10 | 1996-02-07 | Fujitsu Limited | Steuersystem für Spursuche in Geräten mit rotierenden Platten mit Korrektur der Exzentrizität |
JPH0354733A (ja) * | 1989-07-21 | 1991-03-08 | Sony Corp | 光学記録および/または再生装置 |
US5278816A (en) * | 1989-09-22 | 1994-01-11 | Russell James T | Recording/reproducing system using wavelength/depth selective optical storage medium |
FR2724042B1 (fr) * | 1994-08-30 | 1997-01-03 | Thomson Csf | Systeme d'ecriture/lecture optique d'un support d'enregistrement et application a un disque d'enregistrement |
DE19514881A1 (de) * | 1995-04-22 | 1996-10-24 | Thomson Brandt Gmbh | Kompatibles Aufzeichnungs- und/oder Wiedergabegerät |
JP3402997B2 (ja) * | 1997-03-12 | 2003-05-06 | 株式会社リコー | 光ピックアップ装置 |
US6963522B2 (en) * | 2001-05-31 | 2005-11-08 | Nec Corporation | Optical head apparatus and optical information recording and reproducing apparatus |
US20020181353A1 (en) * | 2001-05-31 | 2002-12-05 | Nec Corporation | Optical head apparatus and optical information recording and reproducing apparatus |
JP4151313B2 (ja) * | 2002-06-03 | 2008-09-17 | 株式会社日立製作所 | 光再生装置 |
JP2009104732A (ja) * | 2007-10-25 | 2009-05-14 | Hitachi Maxell Ltd | 光ピックアップレンズ |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL160138C (nl) * | 1972-05-11 | 1979-09-17 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratie- drager. |
US3767310A (en) * | 1972-06-23 | 1973-10-23 | Ibm | Diffraction grating beam splitter |
NL174591C (nl) * | 1973-02-09 | 1984-07-02 | Philips Nv | Schijfvormig registratiedragerlichaam. |
US4037252A (en) * | 1973-11-10 | 1977-07-19 | U.S. Philips Corporation | Apparatus for reading a disc-shaped record carrier with plural scanning spots for stable radial tracking |
JPS5191612A (en) * | 1975-02-08 | 1976-08-11 | Kirokubaitaiheno johonokirokuhoho | |
US4170396A (en) * | 1975-04-14 | 1979-10-09 | Siemens Aktiengesellschaft | Optical component element |
JPS5855567B2 (ja) * | 1975-06-06 | 1983-12-10 | 株式会社日立製作所 | ジヨウホウサイセイホウシキ |
GB1506400A (en) * | 1975-12-08 | 1978-04-05 | Rank Organisation Ltd | Diffraction gratings |
JPS5320904A (en) * | 1976-08-11 | 1978-02-25 | Toshiba Corp | Optical information reader |
US4133600A (en) * | 1976-10-01 | 1979-01-09 | Eli S. Jacobs | Method of manufacturing and utilizing holographic lens means |
US4205338A (en) * | 1977-11-03 | 1980-05-27 | Laser File Inc. | Disc recording tracking system |
NL7802860A (nl) * | 1978-03-16 | 1979-09-18 | Philips Nv | Registratiedragerlichaam en registratiedrager voor optische informatie en inrichting voor het inschrijven en uitlezen. |
JPS54146613A (en) * | 1978-05-10 | 1979-11-16 | Hitachi Ltd | Optical head |
JPS55113139A (en) * | 1979-02-16 | 1980-09-01 | Pioneer Video Corp | Optical information reading pickup unit |
US4283777A (en) * | 1979-05-14 | 1981-08-11 | Xerox Corporation | Optical memory having a parallel read out |
JPS57200960A (en) * | 1981-06-04 | 1982-12-09 | Pioneer Electronic Corp | Recording and reproducing method and its device |
-
1981
- 1981-08-28 JP JP56134070A patent/JPH0675297B2/ja not_active Expired - Lifetime
-
1982
- 1982-08-16 US US06/408,678 patent/US4532522A/en not_active Expired - Lifetime
- 1982-08-26 EP EP82107867A patent/EP0073066B1/de not_active Expired
- 1982-08-26 AT AT82107867T patent/ATE36617T1/de not_active IP Right Cessation
- 1982-08-26 DE DE8282107867T patent/DE3278923D1/de not_active Expired
- 1982-08-27 CA CA000410348A patent/CA1182911A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPH0675297B2 (ja) | 1994-09-21 |
CA1182911A (en) | 1985-02-19 |
US4532522A (en) | 1985-07-30 |
EP0073066B1 (de) | 1988-08-17 |
JPS5837848A (ja) | 1983-03-05 |
EP0073066A3 (en) | 1985-05-15 |
EP0073066A2 (de) | 1983-03-02 |
DE3278923D1 (en) | 1988-09-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |