CA2343265C - Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif - Google Patents

Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif Download PDF

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Publication number
CA2343265C
CA2343265C CA002343265A CA2343265A CA2343265C CA 2343265 C CA2343265 C CA 2343265C CA 002343265 A CA002343265 A CA 002343265A CA 2343265 A CA2343265 A CA 2343265A CA 2343265 C CA2343265 C CA 2343265C
Authority
CA
Canada
Prior art keywords
objective lens
driving device
magnetic
lens driving
sliding shaft
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.)
Expired - Fee Related
Application number
CA002343265A
Other languages
English (en)
Other versions
CA2343265A1 (fr
Inventor
Shinro Inui
Naohiko Otoshi
Katsuhiko Izumi
Michio Miura
Naomitsu Kuroda
Ryuichiro Mizuno
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.)
Hitachi Ltd
Hitachi Consumer Electronics Co Ltd
Original Assignee
Hitachi Ltd
Hitachi Media Electronics 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
Priority claimed from JP21968396A external-priority patent/JP3409973B2/ja
Priority claimed from JP25269796A external-priority patent/JP3441895B2/ja
Application filed by Hitachi Ltd, Hitachi Media Electronics Co Ltd filed Critical Hitachi Ltd
Priority claimed from CA002213308A external-priority patent/CA2213308C/fr
Publication of CA2343265A1 publication Critical patent/CA2343265A1/fr
Application granted granted Critical
Publication of CA2343265C publication Critical patent/CA2343265C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Optical Recording Or Reproduction (AREA)
CA002343265A 1996-08-19 1997-08-18 Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif Expired - Fee Related CA2343265C (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
JP8-217373 1996-08-19
JP21737396 1996-08-19
JP21968396A JP3409973B2 (ja) 1996-08-21 1996-08-21 光ピックアップ装置及び光ディスク装置
JP8-219683 1996-08-21
JP8-252697 1996-09-25
JP25269796A JP3441895B2 (ja) 1996-09-25 1996-09-25 対物レンズ駆動装置
CA002213308A CA2213308C (fr) 1996-08-19 1997-08-18 Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002213308A Division CA2213308C (fr) 1996-08-19 1997-08-18 Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif

Publications (2)

Publication Number Publication Date
CA2343265A1 CA2343265A1 (fr) 1998-02-19
CA2343265C true CA2343265C (fr) 2003-04-29

Family

ID=27427382

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002343265A Expired - Fee Related CA2343265C (fr) 1996-08-19 1997-08-18 Dispositif d'entrainement d'objectifs et appareil de disque optique utilisant ce dispositif

Country Status (1)

Country Link
CA (1) CA2343265C (fr)

Also Published As

Publication number Publication date
CA2343265A1 (fr) 1998-02-19

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