JPS6430033A - Optical head - Google Patents
Optical headInfo
- Publication number
- JPS6430033A JPS6430033A JP18694787A JP18694787A JPS6430033A JP S6430033 A JPS6430033 A JP S6430033A JP 18694787 A JP18694787 A JP 18694787A JP 18694787 A JP18694787 A JP 18694787A JP S6430033 A JPS6430033 A JP S6430033A
- Authority
- JP
- Japan
- Prior art keywords
- moving
- head
- york
- objective lens
- fixed
- 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 reduce the weight of a moving head by separating a part of a magnetic circuit for an objective lens actuator, fixing the separated part on a case body and mounting only a part of the residual of the magnetic circuit on the moving head. CONSTITUTION:An optical head consists of an objective lens 4, an objective lens driving coil 14 for driving the lens 4, a head moving part, the moving head movably supporting the head moving part, including a moving york 15 and capable of being moved from the case body 10, and a linear motor fixed on the case body 10, having a magnet 12 and a fixed york 11 and arranged adjacently to the moving head 18. The magnet 12, the fixed york 11 and the moving york 15 constitute the magnetic circuit and the objective lens driving coil 14 is arranged on a magnetic gap constituted between the moving york 15 and the magnet 12 or the fixed york 11. Since a part of the magnetic circuit used for the objective lens actuator is fixed, the weight of the head can be reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18694787A JPS6430033A (en) | 1987-07-27 | 1987-07-27 | Optical head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18694787A JPS6430033A (en) | 1987-07-27 | 1987-07-27 | Optical head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6430033A true JPS6430033A (en) | 1989-01-31 |
Family
ID=16197510
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18694787A Pending JPS6430033A (en) | 1987-07-27 | 1987-07-27 | Optical head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6430033A (en) |
-
1987
- 1987-07-27 JP JP18694787A patent/JPS6430033A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69025771D1 (en) | COIL ARRANGEMENTS | |
FR2443784A1 (en) | Electromechanical transducer for AF signals - has damping piece in plane of air gap in which coil moves through magnetic field | |
IE801856L (en) | Linear motor | |
AU3288295A (en) | Linear motor for extended travel | |
JPS5771532A (en) | Two axia driver | |
AU7724391A (en) | Voice coil type actuator | |
JPS6430033A (en) | Optical head | |
JPS56125984A (en) | Magnetically floating movable base | |
EP0425780A3 (en) | Miniaturized power relay for printed circuits | |
EP0511808A3 (en) | Magnet structure for focusing of magnetic resonance images | |
JPS56137532A (en) | Optical pickup driving device | |
EP0408963A3 (en) | Method for controlling the armature movement of switching magnets | |
DE3878528D1 (en) | REGULATION OF THE PSEUDO RESONANCES FOR MAGNETIC CORE RESONANCE COILS. | |
JPS5718200A (en) | Plane type loudspeaker | |
JPS5782234A (en) | Optical head | |
KR910003596A (en) | Objective lens drive | |
DE3577601D1 (en) | Sensor. | |
JPS57100602A (en) | Pickup arm device | |
JPS56114133A (en) | Optical pickup device | |
JPS648518A (en) | Actuator for optical head | |
JPS5769540A (en) | Optical information recording and producting device | |
SU726634A1 (en) | Linear motor inductor | |
JPS5736442A (en) | Reproducer of optical information | |
JPS6423431A (en) | Optical system driver | |
JPS5653405A (en) | Linear encoder |