JPH0325294Y2 - - Google Patents
Info
- Publication number
- JPH0325294Y2 JPH0325294Y2 JP1984007293U JP729384U JPH0325294Y2 JP H0325294 Y2 JPH0325294 Y2 JP H0325294Y2 JP 1984007293 U JP1984007293 U JP 1984007293U JP 729384 U JP729384 U JP 729384U JP H0325294 Y2 JPH0325294 Y2 JP H0325294Y2
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- optical axis
- cylindrical body
- magnets
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 52
- 230000003993 interaction Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 6
- 230000007935 neutral effect Effects 0.000 description 5
- 239000000696 magnetic material Substances 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 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 1
- 238000013016 damping Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007787 solid Substances 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
- G11B7/093—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
- G11B7/08—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
- G11B7/0933—Details of stationary parts
-
- 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
- G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
- G11B7/1372—Lenses
- G11B7/1374—Objective lenses
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984007293U JPS60120519U (ja) | 1984-01-23 | 1984-01-23 | 光学ピツクアツプ |
| US06/635,607 US4643522A (en) | 1983-08-03 | 1984-07-30 | Optical pickup having a driving unit for moving objective lens |
| CA000459979A CA1249744A (en) | 1983-08-03 | 1984-07-30 | Optical pickup having a driving unit |
| KR8404614A KR910005642B1 (en) | 1983-08-03 | 1984-08-02 | Optical pick-up unit |
| DE8484109181T DE3482921D1 (de) | 1983-08-03 | 1984-08-02 | Optischer lesekopf mit antriebseinheit. |
| EP84109181A EP0133994B1 (en) | 1983-08-03 | 1984-08-02 | Optical pickup having a driving unit |
| KR2019840011869U KR910003737Y1 (ko) | 1984-01-23 | 1984-11-21 | 광학 픽업 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1984007293U JPS60120519U (ja) | 1984-01-23 | 1984-01-23 | 光学ピツクアツプ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60120519U JPS60120519U (ja) | 1985-08-14 |
| JPH0325294Y2 true JPH0325294Y2 (US20100056889A1-20100304-C00004.png) | 1991-05-31 |
Family
ID=30485509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1984007293U Granted JPS60120519U (ja) | 1983-08-03 | 1984-01-23 | 光学ピツクアツプ |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS60120519U (US20100056889A1-20100304-C00004.png) |
| KR (1) | KR910003737Y1 (US20100056889A1-20100304-C00004.png) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040013828A (ko) * | 2002-08-08 | 2004-02-14 | 삼성전기주식회사 | 광 픽업 엑츄에이터의 보빈 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6220902Y2 (US20100056889A1-20100304-C00004.png) * | 1981-02-13 | 1987-05-27 |
-
1984
- 1984-01-23 JP JP1984007293U patent/JPS60120519U/ja active Granted
- 1984-11-21 KR KR2019840011869U patent/KR910003737Y1/ko not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR910003737Y1 (ko) | 1991-06-01 |
| JPS60120519U (ja) | 1985-08-14 |
| KR850009674U (ko) | 1985-12-05 |
