JPH0440784B2 - - Google Patents
Info
- Publication number
- JPH0440784B2 JPH0440784B2 JP56079134A JP7913481A JPH0440784B2 JP H0440784 B2 JPH0440784 B2 JP H0440784B2 JP 56079134 A JP56079134 A JP 56079134A JP 7913481 A JP7913481 A JP 7913481A JP H0440784 B2 JPH0440784 B2 JP H0440784B2
- Authority
- JP
- Japan
- Prior art keywords
- bobbin
- objective lens
- yoke
- magnet
- coil
- 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 - Lifetime
Links
- 239000000696 magnetic material Substances 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 7
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 11
- 230000004907 flux Effects 0.000 description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004043 responsiveness Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 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
- G11B7/0925—Electromechanical actuators for lens positioning
- G11B7/0929—Electromechanical actuators for lens positioning for tracking 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
- G11B7/0932—Details of sprung supports
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7913481A JPS57195339A (en) | 1981-05-27 | 1981-05-27 | Objective lens driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7913481A JPS57195339A (en) | 1981-05-27 | 1981-05-27 | Objective lens driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57195339A JPS57195339A (en) | 1982-12-01 |
| JPH0440784B2 true JPH0440784B2 (ko) | 1992-07-06 |
Family
ID=13681478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7913481A Granted JPS57195339A (en) | 1981-05-27 | 1981-05-27 | Objective lens driver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57195339A (ko) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1249744A (en) * | 1983-08-03 | 1989-02-07 | Mitsuru Takashima | Optical pickup having a driving unit |
| DE3924189A1 (de) * | 1989-07-21 | 1991-01-24 | Thomson Brandt Gmbh | Halterung fuer ein optisches element |
| US5056902A (en) * | 1990-04-25 | 1991-10-15 | Smith & Nephew Dyonics, Inc. | Magnetically coupled lens actuator |
| US5836867A (en) * | 1996-11-27 | 1998-11-17 | Linvatec Corporation | Magnetic coupling assembly for endoscope |
| JP2008112003A (ja) * | 2006-10-31 | 2008-05-15 | Matsushita Electric Ind Co Ltd | レンズアクチュエータ |
| WO2008053427A1 (en) * | 2006-11-02 | 2008-05-08 | Koninklijke Philips Electronics N.V. | Actuator assembly and opto-mechanical device comprising an actuator assembly |
| DE102011078969B4 (de) * | 2011-07-11 | 2019-02-21 | Olympus Winter & Ibe Gmbh | Berührungslose Magnetkupplung für ein Endoskop und Endoskop |
| US8840543B2 (en) | 2011-12-07 | 2014-09-23 | Stryker Corporation | Parfocal coupler for endoscopic viewing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52139312A (en) * | 1976-05-17 | 1977-11-21 | Sony Corp | Recording/reproducing device |
| JPS5635890B2 (ko) * | 1976-05-18 | 1981-08-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6141429Y2 (ko) * | 1979-08-27 | 1986-11-25 |
-
1981
- 1981-05-27 JP JP7913481A patent/JPS57195339A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52139312A (en) * | 1976-05-17 | 1977-11-21 | Sony Corp | Recording/reproducing device |
| JPS5635890B2 (ko) * | 1976-05-18 | 1981-08-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57195339A (en) | 1982-12-01 |
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