JPS6459646A - Objective lens actuator for optical head - Google Patents

Objective lens actuator for optical head

Info

Publication number
JPS6459646A
JPS6459646A JP21696887A JP21696887A JPS6459646A JP S6459646 A JPS6459646 A JP S6459646A JP 21696887 A JP21696887 A JP 21696887A JP 21696887 A JP21696887 A JP 21696887A JP S6459646 A JPS6459646 A JP S6459646A
Authority
JP
Japan
Prior art keywords
holder
tracking
objective lens
lens holder
solenoid
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.)
Granted
Application number
JP21696887A
Other languages
Japanese (ja)
Other versions
JP2614455B2 (en
Inventor
Yasuhito Mori
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.)
NEC Home Electronics Ltd
NEC Corp
Original Assignee
NEC Home Electronics Ltd
Nippon Electric Co Ltd
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 NEC Home Electronics Ltd, Nippon Electric Co Ltd filed Critical NEC Home Electronics Ltd
Priority to JP62216968A priority Critical patent/JP2614455B2/en
Publication of JPS6459646A publication Critical patent/JPS6459646A/en
Application granted granted Critical
Publication of JP2614455B2 publication Critical patent/JP2614455B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To attain the detection of a position in the tracking direction of an objective lens and to suppress that a lens holder is vibrated due to an inertia force at the time of a tracking access by executing the driving in the tracking direction of the lens holder with a magnetic force with a solenoid and a permanent magnet. CONSTITUTION:A holder 2 is driven in the tracking direction and an auto- tracking control is executed, by a magnetic force due to a permanent magnet 21 and a corresponding solenoid 25 of the lens holder 2. By the constitution, in accordance with the position of the holder 2, an induced electromotive force occurs at the solenoid 25, the voltage is detected by a voltmeter 27, the position of the holder 2 can be detected and it can be essentially suppressed that the lens holder is vibrated at the time of the tracking access by the inertia force.
JP62216968A 1987-08-31 1987-08-31 Objective lens actuator for optical head Expired - Lifetime JP2614455B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62216968A JP2614455B2 (en) 1987-08-31 1987-08-31 Objective lens actuator for optical head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62216968A JP2614455B2 (en) 1987-08-31 1987-08-31 Objective lens actuator for optical head

Publications (2)

Publication Number Publication Date
JPS6459646A true JPS6459646A (en) 1989-03-07
JP2614455B2 JP2614455B2 (en) 1997-05-28

Family

ID=16696741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62216968A Expired - Lifetime JP2614455B2 (en) 1987-08-31 1987-08-31 Objective lens actuator for optical head

Country Status (1)

Country Link
JP (1) JP2614455B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03268235A (en) * 1990-03-16 1991-11-28 Pioneer Electron Corp Semiconductor integrated circuit device
JP2009096152A (en) * 2007-10-19 2009-05-07 Brother Ind Ltd Label preparing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146635A (en) * 1979-04-27 1980-11-15 Olympus Optical Co Ltd Objective lens driver
JPS59221840A (en) * 1983-05-31 1984-12-13 Matsushita Electric Ind Co Ltd Objective lens driving device of optical disc player

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55146635A (en) * 1979-04-27 1980-11-15 Olympus Optical Co Ltd Objective lens driver
JPS59221840A (en) * 1983-05-31 1984-12-13 Matsushita Electric Ind Co Ltd Objective lens driving device of optical disc player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03268235A (en) * 1990-03-16 1991-11-28 Pioneer Electron Corp Semiconductor integrated circuit device
JP2009096152A (en) * 2007-10-19 2009-05-07 Brother Ind Ltd Label preparing apparatus

Also Published As

Publication number Publication date
JP2614455B2 (en) 1997-05-28

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