JPS57127937A - Insufficient balance compensator for rotating deviation mirror - Google Patents
Insufficient balance compensator for rotating deviation mirrorInfo
- Publication number
- JPS57127937A JPS57127937A JP56206255A JP20625581A JPS57127937A JP S57127937 A JPS57127937 A JP S57127937A JP 56206255 A JP56206255 A JP 56206255A JP 20625581 A JP20625581 A JP 20625581A JP S57127937 A JPS57127937 A JP S57127937A
- Authority
- JP
- Japan
- Prior art keywords
- insufficient balance
- deviation mirror
- rotating deviation
- balance compensator
- compensator
- 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.)
- Granted
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
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08505—Methods for track change, selection or preliminary positioning by moving the head
- G11B7/08517—Methods for track change, selection or preliminary positioning by moving the head with tracking pull-in 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
- G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
- G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
- G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
- G11B7/08564—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
Landscapes
- Optical Recording Or Reproduction (AREA)
- Mechanical Optical Scanning Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8027694A FR2497378B1 (fr) | 1980-12-29 | 1980-12-29 | Dispositif compensateur de desequilibre d'un miroir de renvoi appartenant a un systeme optique d'eclairement d'un support d'information |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57127937A true JPS57127937A (en) | 1982-08-09 |
JPH0353702B2 JPH0353702B2 (ja) | 1991-08-15 |
Family
ID=9249575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56206255A Granted JPS57127937A (en) | 1980-12-29 | 1981-12-22 | Insufficient balance compensator for rotating deviation mirror |
Country Status (6)
Country | Link |
---|---|
US (1) | US4589102A (ja) |
EP (1) | EP0055646B1 (ja) |
JP (1) | JPS57127937A (ja) |
CA (1) | CA1196097A (ja) |
DE (1) | DE3164772D1 (ja) |
FR (1) | FR2497378B1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104437A (ja) * | 1984-10-25 | 1986-05-22 | Nec Corp | 光ヘツド |
JPS62102433A (ja) * | 1985-10-29 | 1987-05-12 | Seiko Epson Corp | 光学ヘツド |
WO2024150620A1 (ja) * | 2023-01-11 | 2024-07-18 | ミツミ電機株式会社 | 揺動アクチュエータ |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2523351B1 (fr) * | 1982-03-09 | 1989-07-13 | Thomson Csf | Tete optique dans un dispositif d'enregistrement-lecture d'un support d'information |
JPS58166567A (ja) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | 情報トラックの検索装置 |
JPS6012825U (ja) * | 1983-06-30 | 1985-01-28 | パイオニア株式会社 | 電気機械変換器の支持機構 |
CA1255385A (en) * | 1985-01-31 | 1989-06-06 | Shigeru Arai | Track servo system for controllably projecting an optical beam to an optical disk |
EP0191467B1 (en) * | 1985-02-15 | 1991-03-27 | Hitachi, Ltd. | Optical disc apparatus |
US4956833A (en) * | 1986-03-31 | 1990-09-11 | Asahi Kogaku Kogyo Kabushiki Kaisha | Objective driving device for an optical disk apparatus |
JPH0777048B2 (ja) * | 1987-06-26 | 1995-08-16 | 三菱電機株式会社 | 記録媒体駆動装置 |
US5010537A (en) * | 1987-07-27 | 1991-04-23 | Nikon Corporation | Optical disc device with multi-head slider and tracking control |
US4785167A (en) * | 1987-08-26 | 1988-11-15 | International Business Machines Corporation | Photodetector having cascaded photoelements |
JPH0262734A (ja) * | 1988-08-30 | 1990-03-02 | Hitachi Ltd | 分離形光ヘッド |
JP2593941B2 (ja) * | 1989-08-19 | 1997-03-26 | 富士通株式会社 | 光ディスク装置のアクチュエータオフセット除去装置 |
JPH03185639A (ja) * | 1989-12-14 | 1991-08-13 | Konica Corp | 光ピックアップ |
JP2861457B2 (ja) * | 1990-05-24 | 1999-02-24 | セイコーエプソン株式会社 | 光学式記録再生装置 |
US5420848A (en) * | 1990-08-02 | 1995-05-30 | Canon Kabushiki Kaisha | Optical system for optical information recording/reproducing apparatus having a galvano mirror |
JPH0728585Y2 (ja) * | 1990-12-17 | 1995-06-28 | 旭光学工業株式会社 | ガルバノミラー装置 |
JPH05334703A (ja) * | 1992-05-29 | 1993-12-17 | Matsushita Electric Ind Co Ltd | ミラー移動量検出装置 |
EP1157379B1 (en) * | 1999-12-24 | 2008-10-08 | Koninklijke Philips Electronics N.V. | Optical scanning unit comprising a detection system for detecting the position of a movable element within the unit |
JP4418152B2 (ja) * | 2002-12-25 | 2010-02-17 | オリンパス株式会社 | ミラー支持装置 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551612A (en) * | 1978-06-19 | 1980-01-08 | Hitachi Ltd | Light beam position correcting method |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3452163A (en) * | 1965-12-08 | 1969-06-24 | Phillip B Dahlen | Optical phonograph apparatus with polarized light |
US3654624A (en) * | 1969-03-17 | 1972-04-04 | Precision Instr Co | Laser recording system using drum mounted record strips |
US3588218A (en) * | 1969-10-27 | 1971-06-28 | Ampex | Multiple spot,optical scanner utilizing periodic light beam refocusing |
FR2174353A5 (ja) * | 1972-02-29 | 1973-10-12 | Thomson Csf | |
FR2197495A5 (ja) * | 1972-08-25 | 1974-03-22 | Thomson Csf | |
US3944727A (en) * | 1972-10-24 | 1976-03-16 | Mca Discovision, Inc. | Video disc player with movable mirror for directing light beam onto reflective disc |
NL7402169A (nl) * | 1974-02-15 | 1975-08-19 | Philips Nv | Inrichting voor het uitlezen van een registra- tiedrager waarop informatie is aangebracht in een optisch uitleesbare struktuur. |
US3992593A (en) * | 1974-08-22 | 1976-11-16 | Heine William K | Disc phonograph record playback by laser generated diffraction pattern |
FR2294605A1 (fr) * | 1974-12-13 | 1976-07-09 | Thomson Brandt | Transducteur electrodynamique |
US4100576A (en) * | 1976-04-28 | 1978-07-11 | Zenith Radio Corporation | Electromagnetic optical beam controller having an eddy current damper for arresting mechanical resonance |
JPS533305A (en) * | 1976-06-30 | 1978-01-13 | Mitsubishi Electric Corp | Optical reproduction device |
JPS5387203A (en) * | 1977-01-11 | 1978-08-01 | Victor Co Of Japan Ltd | Stabilizing system for rotary mirror in optical information recorder/reproducer |
JPS5398802A (en) * | 1977-02-09 | 1978-08-29 | Mitsubishi Electric Corp | Optical reproducer |
JPS5417703A (en) * | 1977-07-08 | 1979-02-09 | Sony Corp | Reproducer of optical type video discs |
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 |
JPS5542304A (en) * | 1978-09-14 | 1980-03-25 | Pioneer Video Corp | Tracking mirror protector of optical information reader |
US4232337A (en) * | 1978-12-13 | 1980-11-04 | Mca Discovision, Inc. | Method and apparatus for tracking an optically readable information track |
FR2462758A1 (fr) * | 1979-08-03 | 1981-02-13 | Thomson Csf | Dispositif optique d'acces a une piste portee par un support d'information et systeme de memoire optique comportant un tel dispositif |
NL8005633A (nl) * | 1980-10-13 | 1982-05-03 | Philips Nv | Inrichting voor het uitlezen en/of inschrijven van een optisch uitleesbare informatiestruktuur. |
-
1980
- 1980-12-29 FR FR8027694A patent/FR2497378B1/fr not_active Expired
-
1981
- 1981-12-04 DE DE8181401936T patent/DE3164772D1/de not_active Expired
- 1981-12-04 EP EP81401936A patent/EP0055646B1/fr not_active Expired
- 1981-12-21 CA CA000392763A patent/CA1196097A/en not_active Expired
- 1981-12-22 JP JP56206255A patent/JPS57127937A/ja active Granted
-
1984
- 1984-07-20 US US06/632,280 patent/US4589102A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS551612A (en) * | 1978-06-19 | 1980-01-08 | Hitachi Ltd | Light beam position correcting method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61104437A (ja) * | 1984-10-25 | 1986-05-22 | Nec Corp | 光ヘツド |
JPS62102433A (ja) * | 1985-10-29 | 1987-05-12 | Seiko Epson Corp | 光学ヘツド |
WO2024150620A1 (ja) * | 2023-01-11 | 2024-07-18 | ミツミ電機株式会社 | 揺動アクチュエータ |
Also Published As
Publication number | Publication date |
---|---|
EP0055646A3 (en) | 1982-08-04 |
CA1196097A (en) | 1985-10-29 |
FR2497378B1 (fr) | 1985-06-28 |
JPH0353702B2 (ja) | 1991-08-15 |
US4589102A (en) | 1986-05-13 |
FR2497378A1 (fr) | 1982-07-02 |
EP0055646A2 (fr) | 1982-07-07 |
DE3164772D1 (en) | 1984-08-16 |
EP0055646B1 (fr) | 1984-07-11 |
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