JPS6430032A - Optical system driver - Google Patents
Optical system driverInfo
- Publication number
- JPS6430032A JPS6430032A JP18562487A JP18562487A JPS6430032A JP S6430032 A JPS6430032 A JP S6430032A JP 18562487 A JP18562487 A JP 18562487A JP 18562487 A JP18562487 A JP 18562487A JP S6430032 A JPS6430032 A JP S6430032A
- Authority
- JP
- Japan
- Prior art keywords
- holding body
- optical system
- weight
- objective lens
- diacetylene
- 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
Abstract
PURPOSE:To improve the follow-up performance of focus control and tracking control by forming an optical system holding body by resin whose main component is diacetylene. CONSTITUTION:The objective lens holding body 1 is inserted into a supporting shaft 11 through a bearing and an objective lens 2 and a dead weight 12 having weight almost similar to that of the objective lens 2 to hold weight balance are fixed in the vicinity of the bearing. A focusing coil 3 is wound around the external peripheral part of the holding body 1, rectangular tracking coils 4a, 4b are fitted under the coil 3 and a magnetic circuit for generating a magnetic field is arranged so as to cross the coils 4a, 4b. The holding part 1 is formed by resin whose main component is diacetylene. Since the light-weight optical system holding body 1 excellent in electric insulating property and rigidity is used, the follow-up performance of focus control and tracking control can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18562487A JPS6430032A (en) | 1987-07-27 | 1987-07-27 | Optical system driver |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18562487A JPS6430032A (en) | 1987-07-27 | 1987-07-27 | Optical system driver |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430032A true JPS6430032A (en) | 1989-01-31 |
Family
ID=16174046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18562487A Pending JPS6430032A (en) | 1987-07-27 | 1987-07-27 | Optical system driver |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430032A (en) |
-
1987
- 1987-07-27 JP JP18562487A patent/JPS6430032A/en active Pending
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