JPS6255217B2 - - Google Patents
Info
- Publication number
- JPS6255217B2 JPS6255217B2 JP4795382A JP4795382A JPS6255217B2 JP S6255217 B2 JPS6255217 B2 JP S6255217B2 JP 4795382 A JP4795382 A JP 4795382A JP 4795382 A JP4795382 A JP 4795382A JP S6255217 B2 JPS6255217 B2 JP S6255217B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic flux
- lens barrel
- generation source
- pair
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 99
- 230000004907 flux Effects 0.000 claims description 51
- 238000004804 winding Methods 0.000 claims description 23
- 230000003287 optical effect Effects 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification 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
- G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4795382A JPS58164036A (ja) | 1982-03-25 | 1982-03-25 | 光ディスク用ピックアップ |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4795382A JPS58164036A (ja) | 1982-03-25 | 1982-03-25 | 光ディスク用ピックアップ |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58164036A JPS58164036A (ja) | 1983-09-28 |
| JPS6255217B2 true JPS6255217B2 (fr) | 1987-11-18 |
Family
ID=12789712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4795382A Granted JPS58164036A (ja) | 1982-03-25 | 1982-03-25 | 光ディスク用ピックアップ |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58164036A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179635U (ja) * | 1982-05-25 | 1983-12-01 | 株式会社三協精機製作所 | ピックアップの対物レンズ駆動装置 |
| JPH05258325A (ja) * | 1992-01-13 | 1993-10-08 | Sharp Corp | 対物レンズ駆動装置 |
| KR100733258B1 (ko) | 2003-04-17 | 2007-06-27 | 니혼 덴산 산쿄 가부시키가이샤 | 렌즈 구동장치，박형 카메라 및 카메라 부착 휴대 전화기 |
-
1982
- 1982-03-25 JP JP4795382A patent/JPS58164036A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58164036A (ja) | 1983-09-28 |
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