JPS635806B2 - - Google Patents
Info
- Publication number
- JPS635806B2 JPS635806B2 JP3850582A JP3850582A JPS635806B2 JP S635806 B2 JPS635806 B2 JP S635806B2 JP 3850582 A JP3850582 A JP 3850582A JP 3850582 A JP3850582 A JP 3850582A JP S635806 B2 JPS635806 B2 JP S635806B2
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- fixed
- focus
- optical pickup
- permanent magnet
- 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 26
- 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
- 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
- 230000000694 effects Effects 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
Landscapes
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3850582A JPS58155529A (ja) | 1982-03-11 | 1982-03-11 | 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 |
|---|---|---|---|
| JP3850582A JPS58155529A (ja) | 1982-03-11 | 1982-03-11 | 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 |
|---|---|
| JPS58155529A JPS58155529A (ja) | 1983-09-16 |
| JPS635806B2 true JPS635806B2 (enrdf_load_stackoverflow) | 1988-02-05 |
Family
ID=12527122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3850582A Granted JPS58155529A (ja) | 1982-03-11 | 1982-03-11 | 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) | JPS58155529A (enrdf_load_stackoverflow) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10696590B2 (en) | 2012-06-01 | 2020-06-30 | Db Group (Holdings) Ltd | Activator composition and method for making concrete |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818066A (en) * | 1984-01-30 | 1989-04-04 | Canon Kabushiki Kaisha | Objective lens driving device |
-
1982
- 1982-03-11 JP JP3850582A patent/JPS58155529A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10696590B2 (en) | 2012-06-01 | 2020-06-30 | Db Group (Holdings) Ltd | Activator composition and method for making concrete |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58155529A (ja) | 1983-09-16 |