JPS554785A - Movable mirror unit - Google Patents
Movable mirror unitInfo
- Publication number
- JPS554785A JPS554785A JP10034778A JP10034778A JPS554785A JP S554785 A JPS554785 A JP S554785A JP 10034778 A JP10034778 A JP 10034778A JP 10034778 A JP10034778 A JP 10034778A JP S554785 A JPS554785 A JP S554785A
- Authority
- JP
- Japan
- Prior art keywords
- mirror substrate
- face
- plate
- movable part
- yoke
- 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 make a movable part light and make a minuter rotation possible by arranging a coil part in the magnetic field formed between a yoke and a plate and forming the inside circumference face in the core part fixing face side and one end face in the mirror substrate side at a specific angle.
CONSTITUTION: Core part 12 forming movable part 4 is provided with trapezoidal protrusion 25 from plane 33 of the fixing plane plate part to mirror substrate 22, and one end 24 in the mirror substrate side of stopping part 11 is cut at an angle of approximately 45° for plane 28 of mirror substrate 22, and inside circumference face 23 on the reverse face of the mirror substrate is cut at this angle similarly. Then, coil part 7 is arranged in the magnetic field between yoke 3 and plate 29 which is formed by the magnetic path passing through permanent magnet part 2, yoke 3 and plate 29, and movable part 4 is rotated by the electromagnetic force of coil part 7. As a result, the movable part can be constituted simply and be made light, so that the movable part can follow a minute change.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10034778A JPS554785A (en) | 1978-08-17 | 1978-08-17 | Movable mirror unit |
DE2924924A DE2924924C2 (en) | 1978-06-21 | 1979-06-20 | Optical-mechanical scanner |
US06/050,859 US4268129A (en) | 1978-06-21 | 1979-06-21 | Mirror for optical recording system |
GB7921683A GB2029600B (en) | 1978-06-21 | 1979-06-21 | Movable mirror device for optical information recording and reproducing system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10034778A JPS554785A (en) | 1978-08-17 | 1978-08-17 | Movable mirror unit |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7519378A Division JPS6057569B2 (en) | 1978-06-21 | 1978-06-21 | movable mirror device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS554785A true JPS554785A (en) | 1980-01-14 |
Family
ID=14271568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10034778A Pending JPS554785A (en) | 1978-06-21 | 1978-08-17 | Movable mirror unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554785A (en) |
-
1978
- 1978-08-17 JP JP10034778A patent/JPS554785A/en active Pending
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