JPS554785A - Movable mirror unit - Google Patents

Movable mirror unit

Info

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
Application number
JP10034778A
Other languages
Japanese (ja)
Inventor
Yoshitsugu Araki
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.)
Pioneer Video Corp
Universal Pioneer Corp
Original Assignee
Pioneer Video Corp
Universal Pioneer 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 Pioneer Video Corp, Universal Pioneer Corp filed Critical Pioneer Video Corp
Priority to JP10034778A priority Critical patent/JPS554785A/en
Priority to DE2924924A priority patent/DE2924924C2/en
Priority to US06/050,859 priority patent/US4268129A/en
Priority to GB7921683A priority patent/GB2029600B/en
Publication of JPS554785A publication Critical patent/JPS554785A/en
Pending legal-status Critical Current

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
JP10034778A 1978-06-21 1978-08-17 Movable mirror unit Pending JPS554785A (en)

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)

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