JPS6453356A - Objective lens driving device - Google Patents
Objective lens driving deviceInfo
- Publication number
- JPS6453356A JPS6453356A JP21062087A JP21062087A JPS6453356A JP S6453356 A JPS6453356 A JP S6453356A JP 21062087 A JP21062087 A JP 21062087A JP 21062087 A JP21062087 A JP 21062087A JP S6453356 A JPS6453356 A JP S6453356A
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- confronted
- generating means
- field generating
- base
- 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.)
- Granted
Links
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To improve the responsiveness of displacement of an objective lens, by linking a fixed part to an objective lens mounting part by a flexible deformation part, and providing a magnetic material and a magnetic field generating means for focusing servo and tracking servo, respectively, at a part where a base is confronted with the objective lens mounting part. CONSTITUTION:A thin plate shape objective lens holding plate 10 in which the objective lens mounting part 10b in a center part is formed integrally in shape linked by the flexible deformation part 10c and the base 11 are arranged oppositely at an outside fixed part 10a in parallel with each other. And at the part where the base 11 and the objective lens mounting part 10b are confronted with an objective lens 15, the magnetic material 13 on one side, and the magnetic field generating means 17 on the other side for focusing servo are provided and also, at the part confronted separately from the above position, the magnetic material 14 on one side and the magnetic field generating means 18 on the other side for tracking servo are provided. The objective lens 15 can be displaced in its optical axial direction or a direction at right angles to the optical axis corresponding to magnetic strength, thereby, the responsiveness can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21062087A JPH0675295B2 (en) | 1987-08-25 | 1987-08-25 | Objective lens drive |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21062087A JPH0675295B2 (en) | 1987-08-25 | 1987-08-25 | Objective lens drive |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6453356A true JPS6453356A (en) | 1989-03-01 |
JPH0675295B2 JPH0675295B2 (en) | 1994-09-21 |
Family
ID=16592342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21062087A Expired - Lifetime JPH0675295B2 (en) | 1987-08-25 | 1987-08-25 | Objective lens drive |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0675295B2 (en) |
-
1987
- 1987-08-25 JP JP21062087A patent/JPH0675295B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH0675295B2 (en) | 1994-09-21 |
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