DE68912370D1 - Vorrichtung zur Unterstützung einer optischen Linse in einem optischen Kopf. - Google Patents
Vorrichtung zur Unterstützung einer optischen Linse in einem optischen Kopf.Info
- Publication number
- DE68912370D1 DE68912370D1 DE89302674T DE68912370T DE68912370D1 DE 68912370 D1 DE68912370 D1 DE 68912370D1 DE 89302674 T DE89302674 T DE 89302674T DE 68912370 T DE68912370 T DE 68912370T DE 68912370 D1 DE68912370 D1 DE 68912370D1
- Authority
- DE
- Germany
- Prior art keywords
- optical
- supporting
- optical lens
- optical head
- head
- 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
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
-
- 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
- G11B7/0932—Details of sprung supports
-
- 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
-
- 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
- G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1988036014U JP2529876Y2 (ja) | 1988-03-17 | 1988-03-17 | 対物レンズ支持装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68912370D1 true DE68912370D1 (de) | 1994-03-03 |
DE68912370T2 DE68912370T2 (de) | 1994-09-08 |
Family
ID=12457894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68912370T Expired - Fee Related DE68912370T2 (de) | 1988-03-17 | 1989-03-17 | Vorrichtung zur Unterstützung einer optischen Linse in einem optischen Kopf. |
Country Status (5)
Country | Link |
---|---|
US (1) | US4969715A (de) |
EP (1) | EP0333512B1 (de) |
JP (1) | JP2529876Y2 (de) |
KR (1) | KR910009103B1 (de) |
DE (1) | DE68912370T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2536436Y2 (ja) * | 1988-05-25 | 1997-05-21 | シャープ株式会社 | 対物レンズ駆動装置 |
US5136565A (en) * | 1988-12-20 | 1992-08-04 | Sanyo Electric Co., Ltd. | Optical device for reading and writing data on a recording medium |
US5293363A (en) * | 1989-10-13 | 1994-03-08 | Mitsubishi Denki Kabushiki Kaisha | Optical head apparatus with light weight movable lens holder |
US5416640A (en) * | 1989-11-24 | 1995-05-16 | Matsushita Electric Industrial Co., Ltd. | Objective actuator |
JP2866160B2 (ja) * | 1990-07-19 | 1999-03-08 | パイオニア株式会社 | 光学式ディスクプレーヤ |
JPH0521325U (ja) * | 1991-08-13 | 1993-03-19 | 旭光学工業株式会社 | 光学式情報記録再生装置 |
JPH0954969A (ja) * | 1995-08-11 | 1997-02-25 | Minebea Co Ltd | 対物レンズ支持装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5920438U (ja) * | 1982-07-27 | 1984-02-07 | パイオニア株式会社 | 光学式情報読取装置における光学系駆動装置 |
JPS60160032A (ja) * | 1984-01-30 | 1985-08-21 | Canon Inc | 光学的記録再生装置の対物レンズ駆動装置 |
JPS60209935A (ja) * | 1984-03-31 | 1985-10-22 | Toshiba Corp | 光学ヘツド装置 |
JPH0668843B2 (ja) * | 1985-08-16 | 1994-08-31 | ソニー株式会社 | 光学ピツクアツプ装置 |
US4813033A (en) * | 1985-10-30 | 1989-03-14 | International Business Machines Corporation | Two axis electromagnetic actuator with axis balanced suspension |
JPS62283430A (ja) * | 1986-05-31 | 1987-12-09 | Sony Corp | 光学ヘツド |
US4823331A (en) * | 1986-02-24 | 1989-04-18 | Sony Corporation | Focusing detection apparatus |
JPH0750526B2 (ja) * | 1986-03-15 | 1995-05-31 | ソニー株式会社 | デイスクプレ−ヤの光学ヘツド装置 |
-
1988
- 1988-03-17 JP JP1988036014U patent/JP2529876Y2/ja not_active Expired - Lifetime
-
1989
- 1989-03-13 KR KR1019890003040A patent/KR910009103B1/ko not_active IP Right Cessation
- 1989-03-17 EP EP89302674A patent/EP0333512B1/de not_active Expired - Lifetime
- 1989-03-17 US US07/324,687 patent/US4969715A/en not_active Expired - Lifetime
- 1989-03-17 DE DE68912370T patent/DE68912370T2/de not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE68912370T2 (de) | 1994-09-08 |
JP2529876Y2 (ja) | 1997-03-19 |
EP0333512A2 (de) | 1989-09-20 |
KR890015214A (ko) | 1989-10-28 |
JPH01140621U (de) | 1989-09-26 |
US4969715A (en) | 1990-11-13 |
EP0333512B1 (de) | 1994-01-19 |
KR910009103B1 (ko) | 1991-10-28 |
EP0333512A3 (en) | 1990-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8328 | Change in the person/name/address of the agent |
Free format text: PATENTANWAELTE MUELLER & HOFFMANN, 81667 MUENCHEN |
|
8339 | Ceased/non-payment of the annual fee |