JPS6421770A - Optical head feeding device - Google Patents

Optical head feeding device

Info

Publication number
JPS6421770A
JPS6421770A JP17581987A JP17581987A JPS6421770A JP S6421770 A JPS6421770 A JP S6421770A JP 17581987 A JP17581987 A JP 17581987A JP 17581987 A JP17581987 A JP 17581987A JP S6421770 A JPS6421770 A JP S6421770A
Authority
JP
Japan
Prior art keywords
optical head
electrostrictive element
driving force
generating
electrostrictive
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
JP17581987A
Other languages
Japanese (ja)
Inventor
Nobuo Takeshita
Keiji Nakamura
Kenjiro Kime
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP17581987A priority Critical patent/JPS6421770A/en
Publication of JPS6421770A publication Critical patent/JPS6421770A/en
Pending legal-status Critical Current

Links

Landscapes

  • Moving Of Heads (AREA)

Abstract

PURPOSE:To dispense with a magnetic flux generating part, to simplify construction, and to miniaturize a device thereby by generating a driving force only by an electrostrictive element. CONSTITUTION:In order to move an optical head 1 extending over the recording area of a disk 30, a voltage is impressed to the electrostrictive element 29, and the length of the electrostrictive element 29 is changed by an electrostrictive effect, and a movable pin base 26 and a pin 25 are moved to the direction of an arrow mark A. Thus, because the driving force to move the optical head is obtained only from the electrostrictive element 29, the generating mechanism of the driving force can be extremely simplified, and the device can be made small, light and low-cost, and besides, a magnetic circuit in an objective lens drive part mounted on the optical head, and the magnetic flux never interfere.
JP17581987A 1987-07-16 1987-07-16 Optical head feeding device Pending JPS6421770A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17581987A JPS6421770A (en) 1987-07-16 1987-07-16 Optical head feeding device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17581987A JPS6421770A (en) 1987-07-16 1987-07-16 Optical head feeding device

Publications (1)

Publication Number Publication Date
JPS6421770A true JPS6421770A (en) 1989-01-25

Family

ID=16002780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17581987A Pending JPS6421770A (en) 1987-07-16 1987-07-16 Optical head feeding device

Country Status (1)

Country Link
JP (1) JPS6421770A (en)

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