DE2643990C2 - Vorrichtung zum optischen Lesen einer Aufzeichnung - Google Patents
Vorrichtung zum optischen Lesen einer AufzeichnungInfo
- Publication number
- DE2643990C2 DE2643990C2 DE2643990A DE2643990A DE2643990C2 DE 2643990 C2 DE2643990 C2 DE 2643990C2 DE 2643990 A DE2643990 A DE 2643990A DE 2643990 A DE2643990 A DE 2643990A DE 2643990 C2 DE2643990 C2 DE 2643990C2
- Authority
- DE
- Germany
- Prior art keywords
- lens
- reading
- radiation
- reading surface
- track
- 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
- 230000005855 radiation Effects 0.000 claims description 39
- 230000003287 optical effect Effects 0.000 claims description 33
- 230000010287 polarization Effects 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 7
- 210000001747 pupil Anatomy 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000001427 coherent effect Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000007935 neutral effect Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 13
- 238000005286 illumination Methods 0.000 description 7
- 238000004049 embossing Methods 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 238000002310 reflectometry Methods 0.000 description 3
- 201000009310 astigmatism Diseases 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000003595 spectral effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004804 winding 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
- G11B7/08—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
-
- 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
- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/005—Reproducing
-
- 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)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7529707A FR2325987A1 (fr) | 1975-09-29 | 1975-09-29 | Dispositif de lecture optique d'un enregistrement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2643990A1 DE2643990A1 (de) | 1977-04-14 |
| DE2643990C2 true DE2643990C2 (de) | 1983-11-24 |
Family
ID=9160561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2643990A Expired DE2643990C2 (de) | 1975-09-29 | 1976-09-29 | Vorrichtung zum optischen Lesen einer Aufzeichnung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4059841A (enExample) |
| JP (1) | JPS599085B2 (enExample) |
| CA (1) | CA1068404A (enExample) |
| DE (1) | DE2643990C2 (enExample) |
| FR (1) | FR2325987A1 (enExample) |
| GB (1) | GB1563318A (enExample) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047822A1 (de) * | 1979-12-19 | 1981-10-15 | Hitachi, Ltd., Tokyo | Vorrichtung zum auslesen optischer information |
| DE3616331A1 (de) * | 1985-05-20 | 1986-11-20 | Hitachi, Ltd., Tokio/Tokyo | Optische lese-/wiedergabevorrichtung |
| RU2208857C2 (ru) * | 2001-07-05 | 2003-07-20 | ООО Предприятие "ЗИП-Научприбор" | Измерительный шунт |
Families Citing this family (71)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7708200A (nl) * | 1976-07-28 | 1978-01-31 | Hitachi Ltd | Automatische scherpstellingsinrichting. |
| JPS5398802A (en) * | 1977-02-09 | 1978-08-29 | Mitsubishi Electric Corp | Optical reproducer |
| NL7703077A (nl) * | 1977-03-22 | 1978-09-26 | Philips Nv | Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager. |
| NL7703076A (nl) * | 1977-03-22 | 1978-09-26 | Philips Nv | Inrichting voor het uitlezen van een stralings- reflekterende registratiedrager. |
| CA1131361A (en) * | 1977-05-11 | 1982-09-07 | Fumitaka Kotaka | Focus servo device for use in optical read-out device of information |
| FR2396379A1 (fr) * | 1977-07-01 | 1979-01-26 | Thomson Brandt | Lecteur optique de disque d'information muni d'un dispositif d'acces automatique aux informations |
| US4142098A (en) * | 1977-07-05 | 1979-02-27 | Zenith Radio Corporation | Optical readout for reflective video discs |
| JPS54117333A (en) * | 1978-03-04 | 1979-09-12 | Nippon Steel Corp | Heat treating method for galvanized steel strip |
| JPS54133305A (en) * | 1978-04-07 | 1979-10-17 | Hitachi Ltd | Information recorder |
| JPS55927A (en) * | 1978-06-16 | 1980-01-07 | Pioneer Video Corp | Focus servo unit of optical information reader |
| JPS6038771B2 (ja) * | 1978-06-19 | 1985-09-03 | パイオニア株式会社 | 光学式情報読取装置のサ−ボ装置 |
| JPS6040093B2 (ja) * | 1978-09-09 | 1985-09-09 | パイオニアビデオ株式会社 | トラッキングサ−ボ引込装置 |
| NL7809227A (nl) * | 1978-09-11 | 1980-03-13 | Philips Nv | Registratiedrager met een optisch uitleesbare, stra- lingsreflekterende informatiestruktuur. |
| US4569026A (en) * | 1979-02-05 | 1986-02-04 | Best Robert M | TV Movies that talk back |
| US4445187A (en) * | 1979-02-05 | 1984-04-24 | Best Robert M | Video games with voice dialog |
| US4305131A (en) * | 1979-02-05 | 1981-12-08 | Best Robert M | Dialog between TV movies and human viewers |
| US4333152A (en) * | 1979-02-05 | 1982-06-01 | Best Robert M | TV Movies that talk back |
| FR2460523A1 (fr) * | 1979-06-29 | 1981-01-23 | Thomson Csf | Tete de lecture optique a source laser a semi-conducteur et dispositif de lecture par reflexion d'un support d'information comportant une telle tete optique |
| GB2066449B (en) * | 1979-12-21 | 1984-03-21 | Rolls Royce | Monitoring distance variations |
| NL8000122A (nl) * | 1980-01-09 | 1981-08-03 | Philips Nv | Schijfvormige, optisch uitleesbare registratiedrager als opslagmedium voor datainformatie, inrichting voor het vervaardigen van zo'n registratiedrager, inrichting voor het optekenen en/of weergeven van datainformatie in c.q. van zo'n registratiedrager. |
| CA1132258A (en) * | 1980-05-12 | 1982-09-21 | Herman W. Willemsen | Scanning head for an optical disc system |
| JPS5744236A (en) * | 1980-08-29 | 1982-03-12 | Matsushita Electric Ind Co Ltd | Optical information reproducer |
| JPS5766533A (en) * | 1980-10-09 | 1982-04-22 | Olympus Optical Co Ltd | Optical information reader |
| JPS5774837A (en) * | 1980-10-25 | 1982-05-11 | Olympus Optical Co Ltd | Signal detection system of optical information reproducing device |
| US4385373A (en) * | 1980-11-10 | 1983-05-24 | Eastman Kodak Company | Device for focus and alignment control in optical recording and/or playback apparatus |
| JPS57108811A (en) * | 1980-12-26 | 1982-07-07 | Hitachi Ltd | Optical focus position detector |
| FR2502800A1 (fr) * | 1981-03-24 | 1982-10-01 | Thomson Csf | Senseur optique d'asservissement de focalisation |
| US4504938A (en) * | 1981-04-07 | 1985-03-12 | Victor Company Of Japan, Limited | Device for feedback controlling focus of an optical system in an information recording/reproducing apparatus |
| JPS57195634U (enExample) * | 1981-06-05 | 1982-12-11 | ||
| DE3280232D1 (de) * | 1981-06-22 | 1990-09-27 | Toshiba Kawasaki Kk | Optischer kopf. |
| US4458144A (en) * | 1981-06-30 | 1984-07-03 | Storage Technology Corporation | Apparatus for reading information stored in a track pattern on a radiation reflecting record |
| JPS5819744A (ja) * | 1981-07-24 | 1983-02-04 | Sony Corp | 光学式記録再生装置 |
| JPS58102342A (ja) * | 1981-12-14 | 1983-06-17 | Mitsubishi Electric Corp | 光学式情報再生装置 |
| JPS5938937A (ja) * | 1982-08-25 | 1984-03-03 | Akai Electric Co Ltd | 非点収差式光ピツクアツプ |
| JPS59191144A (ja) * | 1983-04-14 | 1984-10-30 | Sony Corp | 光ピツクアツプのトラツキングサ−ボ回路 |
| US4555968A (en) * | 1984-06-07 | 1985-12-03 | Preco Industries, Inc. | Web fed die cutting press having automatic 3-axis die registration system |
| JPH069090B2 (ja) * | 1984-06-12 | 1994-02-02 | 株式会社東芝 | 光学ヘツド |
| US4563058A (en) * | 1984-06-28 | 1986-01-07 | International Business Machines Corporation | Optical signal recorder employing a transducer having an adjustable dichroic mirror |
| US4752922A (en) * | 1984-07-06 | 1988-06-21 | Storage Technology Partners 11 | Optical disk recording and readout system having read, write and coarse light beams |
| US4694447A (en) * | 1984-07-12 | 1987-09-15 | International Business Machines Corp. | Optical signal recorders employing two lasers and methods therefor |
| JPS6175684A (ja) * | 1984-09-21 | 1986-04-18 | Canon Inc | カメラ |
| US4899327A (en) * | 1985-02-04 | 1990-02-06 | International Business Machines Corporation | Focus servo loop correction |
| US4823330A (en) * | 1985-02-04 | 1989-04-18 | International Business Machines Corporation | Focus servo loop off-set compensation |
| JPS61177646A (ja) * | 1985-02-04 | 1986-08-09 | インタ−ナショナル ビジネス マシ−ンズ コ−ポレ−ション | 光学デイスク装置 |
| US4740940A (en) * | 1985-03-11 | 1988-04-26 | Matsushita Electric Industrial Co., Ltd. | Optical information read apparatus |
| JPS62132242A (ja) * | 1985-12-04 | 1987-06-15 | Hitachi Ltd | 光デイスク装置 |
| JPH063648B2 (ja) * | 1986-01-16 | 1994-01-12 | 松下電器産業株式会社 | 光学的情報再生装置 |
| US4799210A (en) * | 1986-11-05 | 1989-01-17 | Unisys Corporation | Fiber optic read/write head for an optical disk memory system |
| JPH0770088B2 (ja) * | 1986-12-18 | 1995-07-31 | キヤノン電子株式会社 | 光検出器 |
| JPH0777048B2 (ja) * | 1987-06-26 | 1995-08-16 | 三菱電機株式会社 | 記録媒体駆動装置 |
| US4958245A (en) * | 1988-04-07 | 1990-09-18 | Insite Peripherals, Inc. | Apparatus and method for optical servo control with media having information storage and servo control regions of different reflectivities |
| US6141300A (en) * | 1989-06-20 | 2000-10-31 | Discovision Associates | Optical actuator including lens assembly with optical axis having symmetric suspensory forces acting thereon and optical disc system including same |
| US5265079A (en) | 1991-02-15 | 1993-11-23 | Applied Magnetics Corporation | Seek actuator for optical recording |
| US5161133A (en) * | 1989-09-29 | 1992-11-03 | International Business Machines Corporation | Magneto-optical storage system |
| JPH03130972A (ja) * | 1989-10-16 | 1991-06-04 | Matsushita Electric Ind Co Ltd | トラック検索装置及びトラッキング制御装置 |
| US5729511A (en) * | 1991-02-15 | 1998-03-17 | Discovision Associates | Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal |
| US6069857A (en) * | 1991-02-15 | 2000-05-30 | Discovision Associates | Optical disc system having improved circuitry for performing blank sector check on readable disc |
| US6236625B1 (en) * | 1991-02-15 | 2001-05-22 | Discovision Associates | Optical disc system having current monitoring circuit with controller for laser driver and method for operating same |
| US5677899A (en) * | 1991-02-15 | 1997-10-14 | Discovision Associates | Method for moving carriage assembly from initial position to target position relative to storage medium |
| US5353272A (en) * | 1992-12-29 | 1994-10-04 | Eastman Kodak Company | Apparatus and method for a modified half-aperture focus/tracking/data sensor system |
| FR2723243B1 (fr) * | 1994-07-26 | 1996-09-06 | Thomson Csf | Dispositif d'enregistrement et/ou de lecture de tetes magnetiques et son procede de realisation |
| US6091684A (en) * | 1995-01-25 | 2000-07-18 | Discovision Associates | Optical disc system and method for changing the rotational rate of an information storage medium |
| US6434087B1 (en) | 1995-01-25 | 2002-08-13 | Discovision Associates | Optical disc system and method for controlling bias coil and light source to process information on a storage medium |
| US5748578A (en) * | 1995-01-25 | 1998-05-05 | Discovision Associates | Colpitts type oscillator having reduced ringing and improved optical disc system utilizing same |
| FR2739965B1 (fr) * | 1995-10-17 | 1997-11-07 | Thomson Csf | Dispositif emetteur-recepteur de lumiere et systeme de lecture optique |
| DE19611904A1 (de) * | 1996-03-26 | 1997-10-02 | Thomson Brandt Gmbh | Gerät zum Lesen und/oder Beschreiben optischer Aufzeichnungsträger |
| FR2786345B1 (fr) | 1998-11-24 | 2001-02-09 | Thomson Csf | Dispositif de cryptage quantique |
| US7149173B2 (en) * | 2000-10-17 | 2006-12-12 | Thales | Medium for recording optically readable data, method for making same and optical system reproducing said data |
| US6657219B2 (en) * | 2001-02-12 | 2003-12-02 | International Business Machines Corporation | Optical detection and measurement system |
| FR2824905B1 (fr) * | 2001-05-15 | 2003-08-29 | Thomson Csf | Gyrometre a fibre optique |
| RU2742816C1 (ru) * | 2020-03-24 | 2021-02-11 | Общество с ограниченной ответственностью «ФОРМ» | Низкоиндуктивный шунт |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2212070A6 (enExample) * | 1972-08-25 | 1974-07-19 | Thomson Csf | |
| US3909608A (en) * | 1972-12-26 | 1975-09-30 | Thomson Csf | Reproducing device for the optical reading out of a record carrying an embossed print |
| FR2266932B1 (enExample) * | 1973-03-02 | 1977-09-02 | Thomson Brandt | |
| FR2235448B1 (enExample) * | 1973-06-29 | 1976-05-07 | Thomson Brandt | |
| DE2445333A1 (de) * | 1973-10-01 | 1975-04-10 | Philips Nv | Optoelektronisches system zur bestimmung einer abweichung zwischen der istlage und der sollage einer ebene in einem optischen abbildungssystem |
| NL7413162A (nl) * | 1974-10-07 | 1976-04-09 | Philips Nv | Inrichting voor het uitlezen van een schijf- vormige registratiedrager. |
| US4001494A (en) * | 1974-11-01 | 1977-01-04 | Zenith Radio Corporation | Photoreceptor matrix for optical video playback system |
| NL181693C (nl) * | 1974-11-29 | 1987-10-01 | Philips Nv | Inrichting voor het langs optische weg uitlezen van een stralingsreflekterende registratiedrager. |
| US3983317A (en) * | 1974-12-09 | 1976-09-28 | Teletype Corporation | Astigmatizer for laser recording and reproducing system |
| NL177157C (nl) * | 1975-02-28 | 1985-08-01 | Philips Nv | Inrichting voor het uitlezen van een vlakke registratiedrager met een optisch uitleesbare informatiestruktuur. |
| NL182990C (nl) * | 1975-07-07 | 1988-06-16 | Philips Nv | Inrichting voor het uitlezen van een stralingsreflekterende registratiedrager. |
| UST953002I4 (en) | 1975-09-30 | 1976-12-07 | Rca Corporation | Optical videodisc playback system with plural photodetectors |
| US4025949A (en) * | 1975-12-31 | 1977-05-24 | Zenith Radio Corporation | Symmetrical astigmatic focus sensing system |
-
1975
- 1975-09-29 FR FR7529707A patent/FR2325987A1/fr active Granted
-
1976
- 1976-09-24 US US05/726,161 patent/US4059841A/en not_active Expired - Lifetime
- 1976-09-27 GB GB40079/76A patent/GB1563318A/en not_active Expired
- 1976-09-28 CA CA262,252A patent/CA1068404A/en not_active Expired
- 1976-09-29 DE DE2643990A patent/DE2643990C2/de not_active Expired
- 1976-09-29 JP JP51117061A patent/JPS599085B2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047822A1 (de) * | 1979-12-19 | 1981-10-15 | Hitachi, Ltd., Tokyo | Vorrichtung zum auslesen optischer information |
| DE3616331A1 (de) * | 1985-05-20 | 1986-11-20 | Hitachi, Ltd., Tokio/Tokyo | Optische lese-/wiedergabevorrichtung |
| RU2208857C2 (ru) * | 2001-07-05 | 2003-07-20 | ООО Предприятие "ЗИП-Научприбор" | Измерительный шунт |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2643990A1 (de) | 1977-04-14 |
| FR2325987B1 (enExample) | 1979-04-06 |
| CA1068404A (en) | 1979-12-18 |
| GB1563318A (en) | 1980-03-26 |
| FR2325987A1 (fr) | 1977-04-22 |
| JPS5242743A (en) | 1977-04-02 |
| US4059841A (en) | 1977-11-22 |
| JPS599085B2 (ja) | 1984-02-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8181 | Inventor (new situation) |
Free format text: LEHUREAU, JEAN-CLAUDE, GOMETZ-LE-CHATEL, FR BRICOT, CLAUDE, VILLEJUIF, FR |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition |