JPS6432434A - Optical information recording and reproducing device - Google Patents
Optical information recording and reproducing deviceInfo
- Publication number
- JPS6432434A JPS6432434A JP62186641A JP18664187A JPS6432434A JP S6432434 A JPS6432434 A JP S6432434A JP 62186641 A JP62186641 A JP 62186641A JP 18664187 A JP18664187 A JP 18664187A JP S6432434 A JPS6432434 A JP S6432434A
- Authority
- JP
- Japan
- Prior art keywords
- light
- actuator
- bobbin
- providing
- movable part
- 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 Head (AREA)
Abstract
PURPOSE:To prevent exerting of a harmful influence upon operating characteristics by holding an optical system with a holder, providing a light reflection means for reflecting optically a light to the holder, providing also a fixed light source for emitting its light against the light reflection means and providing sensors for receiving a reflected light out of the light source. CONSTITUTION:A bobbin 1 as a movable part of an actuator is turned around a pin 2 by a magnetic coil and a magnet in the direction of an arrow (a) and also moved up and down in the direction of an arrow (b). An objective lens 3 for positional detection is constituted integrally of the bobbin 1. The light of the light source 5 fitted to a non-movable part of the actuator or a head main body is reflected by a mirror part 4, and the reflected light by the mirror part 4 is received by the bisectional photo sensors 6a and 6b fitted again to the non-movable part of the actuator or the head main body, so that the turning position of the bobbin 1, i.e., the position of the objective lens 3 in a tracking direction is obtained by an amplifier 7. By this method, the exerting of harmful influences upon the operating characteristics of the actuator will be eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186641A JPS6432434A (en) | 1987-07-28 | 1987-07-28 | Optical information recording and reproducing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62186641A JPS6432434A (en) | 1987-07-28 | 1987-07-28 | Optical information recording and reproducing device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6432434A true JPS6432434A (en) | 1989-02-02 |
Family
ID=16192142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62186641A Pending JPS6432434A (en) | 1987-07-28 | 1987-07-28 | Optical information recording and reproducing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6432434A (en) |
-
1987
- 1987-07-28 JP JP62186641A patent/JPS6432434A/en active Pending
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