JPH0210490B2 - - Google Patents
Info
- Publication number
- JPH0210490B2 JPH0210490B2 JP22109582A JP22109582A JPH0210490B2 JP H0210490 B2 JPH0210490 B2 JP H0210490B2 JP 22109582 A JP22109582 A JP 22109582A JP 22109582 A JP22109582 A JP 22109582A JP H0210490 B2 JPH0210490 B2 JP H0210490B2
- Authority
- JP
- Japan
- Prior art keywords
- tracking
- focus
- objective lens
- control coil
- lens holder
- 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 22
- 238000000926 separation method Methods 0.000 claims description 8
- 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
- 238000010586 diagram Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 239000013585 weight reducing agent 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
Landscapes
- Automatic Focus Adjustment (AREA)
- Optical Recording Or Reproduction (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22109582A JPS59112443A (ja) | 1982-12-18 | 1982-12-18 | 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 |
|---|---|---|---|
| JP22109582A JPS59112443A (ja) | 1982-12-18 | 1982-12-18 | 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 |
|---|---|
| JPS59112443A JPS59112443A (ja) | 1984-06-28 |
| JPH0210490B2 true JPH0210490B2 (enrdf_load_stackoverflow) | 1990-03-08 |
Family
ID=16761406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22109582A Granted JPS59112443A (ja) | 1982-12-18 | 1982-12-18 | 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) | JPS59112443A (enrdf_load_stackoverflow) |
-
1982
- 1982-12-18 JP JP22109582A patent/JPS59112443A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59112443A (ja) | 1984-06-28 |