JPS6233656B2 - - Google Patents
Info
- Publication number
- JPS6233656B2 JPS6233656B2 JP20699281A JP20699281A JPS6233656B2 JP S6233656 B2 JPS6233656 B2 JP S6233656B2 JP 20699281 A JP20699281 A JP 20699281A JP 20699281 A JP20699281 A JP 20699281A JP S6233656 B2 JPS6233656 B2 JP S6233656B2
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- permanent magnet
- focus
- fixed
- objective lens
- 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 14
- 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 2
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000003466 welding 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
- G11B7/0932—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
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20699281A JPS58111135A (ja) | 1981-12-23 | 1981-12-23 | 光ピツクアツプ装置の対物レンズ上下左右移動装置 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20699281A JPS58111135A (ja) | 1981-12-23 | 1981-12-23 | 光ピツクアツプ装置の対物レンズ上下左右移動装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58111135A JPS58111135A (ja) | 1983-07-02 |
| JPS6233656B2 true JPS6233656B2 (de) | 1987-07-22 |
Family
ID=16532384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20699281A Granted JPS58111135A (ja) | 1981-12-23 | 1981-12-23 | 光ピツクアツプ装置の対物レンズ上下左右移動装置 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58111135A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818066A (en) * | 1984-01-30 | 1989-04-04 | Canon Kabushiki Kaisha | Objective lens driving device |
| US4811320A (en) * | 1986-03-04 | 1989-03-07 | Sanyo Electric Co., Ltd. | Optical type pickup apparatus with lens holder supported by frame wires each having an end inserted into a frame hole |
-
1981
- 1981-12-23 JP JP20699281A patent/JPS58111135A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58111135A (ja) | 1983-07-02 |
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