JPS6417226A - Objective lens driving device - Google Patents
Objective lens driving deviceInfo
- Publication number
- JPS6417226A JPS6417226A JP17338987A JP17338987A JPS6417226A JP S6417226 A JPS6417226 A JP S6417226A JP 17338987 A JP17338987 A JP 17338987A JP 17338987 A JP17338987 A JP 17338987A JP S6417226 A JPS6417226 A JP S6417226A
- Authority
- JP
- Japan
- Prior art keywords
- flow
- axis
- coils
- error signal
- current corresponding
- 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.)
- Pending
Links
Landscapes
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To prevent the generation of an unnecessary higher-order resonance, a crosstalk, a jitter, etc., by allowing a current corresponding to a focus error signal to flow to all of plural focus coils, and allowing a current corresponding to a tracking error signal to flow to all of plural tracking coils. CONSTITUTION:When a current corresponding to a focus error signal is allowed to flow to four pieces of focus coils 3, a lens holder 2 is driven in the Z axis direction, and in the same way, when a current corresponding to a tracking error signal is allowed to flow to four pieces of tracking coils 4, the lens holder 2 is driven in the X axis direction. It is driven in the Y axis direction, as well, in the same way by a tangential coil 5. A detecting signal of a photosensor 13 for detecting a rotation of the Z axis is amplified, and the current is allowed to flow so that the coils opposed to each other by placing an objective lens 1 between them generate force in the opposite direction, by which the lens holder 2 rotates with regard to the Z axis. Also, by a detecting signal of a photosensor 14, the rotation related to the X axis and the Y axis is also controlled in the same way. In such a way, an unnecessary higher-order resonance is eliminated, and also, the generation of a crosstalk and a jitter can be suppressed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17338987A JPS6417226A (en) | 1987-07-10 | 1987-07-10 | Objective lens driving device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17338987A JPS6417226A (en) | 1987-07-10 | 1987-07-10 | Objective lens driving device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6417226A true JPS6417226A (en) | 1989-01-20 |
Family
ID=15959491
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17338987A Pending JPS6417226A (en) | 1987-07-10 | 1987-07-10 | Objective lens driving device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6417226A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285434A (en) * | 1991-05-13 | 1994-02-08 | Samsung Electronics Co. Ltd. | Objective lens driving apparatus for optical pickup |
US5359459A (en) * | 1991-05-13 | 1994-10-25 | Samsung Electronics Co., Ltd. | Optical system driving apparatus |
-
1987
- 1987-07-10 JP JP17338987A patent/JPS6417226A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5285434A (en) * | 1991-05-13 | 1994-02-08 | Samsung Electronics Co. Ltd. | Objective lens driving apparatus for optical pickup |
US5359459A (en) * | 1991-05-13 | 1994-10-25 | Samsung Electronics Co., Ltd. | Optical system driving apparatus |
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