JPS6430033A - Optical head - Google Patents

Optical head

Info

Publication number
JPS6430033A
JPS6430033A JP18694787A JP18694787A JPS6430033A JP S6430033 A JPS6430033 A JP S6430033A JP 18694787 A JP18694787 A JP 18694787A JP 18694787 A JP18694787 A JP 18694787A JP S6430033 A JPS6430033 A JP S6430033A
Authority
JP
Japan
Prior art keywords
moving
head
york
objective lens
fixed
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
JP18694787A
Other languages
Japanese (ja)
Inventor
Shigeru Nishida
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 JP18694787A priority Critical patent/JPS6430033A/en
Publication of JPS6430033A publication Critical patent/JPS6430033A/en
Pending legal-status Critical Current

Links

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  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To reduce the weight of a moving head by separating a part of a magnetic circuit for an objective lens actuator, fixing the separated part on a case body and mounting only a part of the residual of the magnetic circuit on the moving head. CONSTITUTION:An optical head consists of an objective lens 4, an objective lens driving coil 14 for driving the lens 4, a head moving part, the moving head movably supporting the head moving part, including a moving york 15 and capable of being moved from the case body 10, and a linear motor fixed on the case body 10, having a magnet 12 and a fixed york 11 and arranged adjacently to the moving head 18. The magnet 12, the fixed york 11 and the moving york 15 constitute the magnetic circuit and the objective lens driving coil 14 is arranged on a magnetic gap constituted between the moving york 15 and the magnet 12 or the fixed york 11. Since a part of the magnetic circuit used for the objective lens actuator is fixed, the weight of the head can be reduced.
JP18694787A 1987-07-27 1987-07-27 Optical head Pending JPS6430033A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18694787A JPS6430033A (en) 1987-07-27 1987-07-27 Optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18694787A JPS6430033A (en) 1987-07-27 1987-07-27 Optical head

Publications (1)

Publication Number Publication Date
JPS6430033A true JPS6430033A (en) 1989-01-31

Family

ID=16197510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18694787A Pending JPS6430033A (en) 1987-07-27 1987-07-27 Optical head

Country Status (1)

Country Link
JP (1) JPS6430033A (en)

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