JPH02773B2 - - Google Patents
Info
- Publication number
- JPH02773B2 JPH02773B2 JP56008547A JP854781A JPH02773B2 JP H02773 B2 JPH02773 B2 JP H02773B2 JP 56008547 A JP56008547 A JP 56008547A JP 854781 A JP854781 A JP 854781A JP H02773 B2 JPH02773 B2 JP H02773B2
- Authority
- JP
- Japan
- Prior art keywords
- axis
- carriage
- coil
- frame
- disk
- 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
- 230000033001 locomotion Effects 0.000 claims description 36
- 230000003287 optical effect Effects 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 description 14
- 230000001133 acceleration Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003831 antifriction material Substances 0.000 description 1
- 229910052790 beryllium Inorganic materials 0.000 description 1
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005855 radiation 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
- G11B7/085—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
- G11B7/0857—Arrangements for mechanically moving the whole head
- G11B7/08582—Sled-type positioners
-
- 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
- G11B7/08—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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
Landscapes
- Optical Recording Or Reproduction (AREA)
- Automatic Focus Adjustment (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8001525A FR2474740A1 (fr) | 1980-01-24 | 1980-01-24 | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56134327A JPS56134327A (en) | 1981-10-21 |
JPH02773B2 true JPH02773B2 (US07909887-20110322-C00021.png) | 1990-01-09 |
Family
ID=9237833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP854781A Granted JPS56134327A (en) | 1980-01-24 | 1981-01-22 | Moving system for device for reading and recording video disk |
Country Status (5)
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2474740A1 (fr) * | 1980-01-24 | 1981-07-31 | Thomson Csf | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
FR2522861B1 (fr) * | 1982-03-02 | 1988-01-08 | Thomson Csf | Tete optique d'ecriture-lecture d'un disque optique et dispositif optique associe a une telle tete |
JPS59129952A (ja) * | 1983-01-17 | 1984-07-26 | Ricoh Co Ltd | 光ピツクアツプ |
JPS59168941A (ja) * | 1983-03-15 | 1984-09-22 | Ricoh Co Ltd | 光ピツクアツプ |
JPS60155017U (ja) * | 1984-03-24 | 1985-10-16 | パイオニア株式会社 | 光学情報読取装置 |
NL8500592A (nl) * | 1985-03-04 | 1986-10-01 | Philips Nv | Electro-optische inrichting. |
US4862441A (en) * | 1986-05-27 | 1989-08-29 | Mitsubishi Denki Kabushiki Kaisha | Carriage assembly |
US4945526A (en) * | 1988-10-18 | 1990-07-31 | Laser Magnetic Storage International Company | Actuator assembly for optical disk systems |
US5296767A (en) * | 1991-08-15 | 1994-03-22 | Applied Magnetics Corporation | Efficient magnetic motor armatures |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3530258A (en) * | 1968-06-28 | 1970-09-22 | Mca Technology Inc | Video signal transducer having servo controlled flexible fiber optic track centering |
FR2294605A1 (fr) * | 1974-12-13 | 1976-07-09 | Thomson Brandt | Transducteur electrodynamique |
US4092529A (en) * | 1975-10-08 | 1978-05-30 | Olympus Optical Company Limited | Detecting head for use in an apparatus for reading optically an information recorded on a record carrier as a track or tracks |
NL176315C (nl) * | 1976-05-12 | 1985-03-18 | Philips Nv | Optische aftastinrichting. |
NL7608561A (nl) * | 1976-08-02 | 1978-02-06 | Philips Nv | Optische uitleeseenheid voor het aftasten van een registratiedrager voorzien van een stra- lingsreflekterende informatiestruktuur. |
JPS6032265B2 (ja) * | 1977-04-19 | 1985-07-26 | ソニー株式会社 | 光学式再生装置の焦点制御装置 |
JPS5826087B2 (ja) * | 1977-07-25 | 1983-05-31 | 日本ビクター株式会社 | 光学的情報記録媒体円盤の再生装置 |
FR2425782B1 (fr) * | 1978-05-10 | 1988-02-12 | Olympus Optical Co | Appareil de lecture d'informations optiques |
US4302830A (en) * | 1978-05-10 | 1981-11-24 | Olympus Optical Company Ltd. | Optical information reading-out apparatus |
JPS5542369A (en) * | 1978-09-19 | 1980-03-25 | Mitsubishi Electric Corp | Pickup controller |
FR2443734A1 (fr) * | 1978-12-08 | 1980-07-04 | Thomson Csf | Dispositif d'acces a une piste portee par un support enregistrable ou lisible optiquement et systeme optique comportant un tel dispositif |
US4318145A (en) * | 1979-10-18 | 1982-03-02 | Burroughs Corporation | Multiple-transducer/actuator array |
FR2474740A1 (fr) * | 1980-01-24 | 1981-07-31 | Thomson Csf | Equipage mobile d'un lecteur enregistreur de videodisque, et lecteur enregistreur de videodisque comprenant un tel equipage |
-
1980
- 1980-01-24 FR FR8001525A patent/FR2474740A1/fr active Granted
- 1980-12-24 DE DE8080401863T patent/DE3067716D1/de not_active Expired
- 1980-12-24 EP EP80401863A patent/EP0033047B1/fr not_active Expired
-
1981
- 1981-01-21 US US06/226,905 patent/US4414657A/en not_active Expired - Fee Related
- 1981-01-22 JP JP854781A patent/JPS56134327A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
US4414657A (en) | 1983-11-08 |
EP0033047B1 (fr) | 1984-05-02 |
JPS56134327A (en) | 1981-10-21 |
FR2474740A1 (fr) | 1981-07-31 |
DE3067716D1 (en) | 1984-06-07 |
FR2474740B1 (US07909887-20110322-C00021.png) | 1984-10-26 |
EP0033047A1 (fr) | 1981-08-05 |
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