JPS6461722A - Galvanomirror - Google Patents
GalvanomirrorInfo
- Publication number
- JPS6461722A JPS6461722A JP21884087A JP21884087A JPS6461722A JP S6461722 A JPS6461722 A JP S6461722A JP 21884087 A JP21884087 A JP 21884087A JP 21884087 A JP21884087 A JP 21884087A JP S6461722 A JPS6461722 A JP S6461722A
- Authority
- JP
- Japan
- Prior art keywords
- movable
- sleeve
- movable part
- permanent magnet
- 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
- Mechanical Optical Scanning Systems (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
PURPOSE:To form a high-rigidity structure and to eliminate the need to feed electricity to a movable part by using a permanent magnet in a specific shape as part of the movable part. CONSTITUTION:A reflecting mirror 101 is united with a movable permanent magnet 102, a back yoke 103, and a movable sleeve 104, and the external rings of ball bearings 105 and 106 are adhered to the movable sleeve rotatably. The yoke 103 and sleeve 104 are fitted loosely and a mirror holder 107 is adhered to the yoke 103 and sleeve 104. A support shaft 108 is engaged with the internal rings of the ball bearings and pre-loaded by a pre-loading collar 110. The movable part, on the other hand, is provided with a permanent magnet 201 for neutral holding and holding magnetic poles 202 and 203, which are moved right and left to make adjustments in assembly. An electromagnet consists of a magnetic pole 204, a coil 205, a magnetic pole 206, and a coil 207 and the currents of the coils 205 and 207 are controlled to control the angle of rotation of the movable part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21884087A JPS6461722A (en) | 1987-09-01 | 1987-09-01 | Galvanomirror |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21884087A JPS6461722A (en) | 1987-09-01 | 1987-09-01 | Galvanomirror |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6461722A true JPS6461722A (en) | 1989-03-08 |
Family
ID=16726160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21884087A Pending JPS6461722A (en) | 1987-09-01 | 1987-09-01 | Galvanomirror |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6461722A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5102084A (en) * | 1989-10-16 | 1992-04-07 | Hyundai Electronics Ind. Co., Ltd. | Positioning apparatus with gears and a pivot for angularly and longitudinally positioning the screen of a lap top computer |
US5109572A (en) * | 1989-09-23 | 1992-05-05 | Hyundai Electronics Ind. Co., Ltd. | Locking hinge device for the LCD screen of a word processor |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5613531A (en) * | 1979-07-11 | 1981-02-09 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
JPS57157816A (en) * | 1981-03-25 | 1982-09-29 | Toshiba Corp | Rotary shaft device |
-
1987
- 1987-09-01 JP JP21884087A patent/JPS6461722A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5613531A (en) * | 1979-07-11 | 1981-02-09 | Matsushita Electric Ind Co Ltd | Optical recording and reproducing device |
JPS57157816A (en) * | 1981-03-25 | 1982-09-29 | Toshiba Corp | Rotary shaft device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5109572A (en) * | 1989-09-23 | 1992-05-05 | Hyundai Electronics Ind. Co., Ltd. | Locking hinge device for the LCD screen of a word processor |
US5102084A (en) * | 1989-10-16 | 1992-04-07 | Hyundai Electronics Ind. Co., Ltd. | Positioning apparatus with gears and a pivot for angularly and longitudinally positioning the screen of a lap top computer |
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