JPS6461722A - Galvanomirror - Google Patents

Galvanomirror

Info

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
Application number
JP21884087A
Other languages
Japanese (ja)
Inventor
Michio Yanagisawa
Tsugio Ide
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Seiko Epson Corp
Original Assignee
Seiko Epson Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP21884087A priority Critical patent/JPS6461722A/en
Publication of JPS6461722A publication Critical patent/JPS6461722A/en
Pending legal-status Critical Current

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.
JP21884087A 1987-09-01 1987-09-01 Galvanomirror Pending JPS6461722A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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