TW200725138A - Image pick-up system and focusing device - Google Patents

Image pick-up system and focusing device

Info

Publication number
TW200725138A
TW200725138A TW094144701A TW94144701A TW200725138A TW 200725138 A TW200725138 A TW 200725138A TW 094144701 A TW094144701 A TW 094144701A TW 94144701 A TW94144701 A TW 94144701A TW 200725138 A TW200725138 A TW 200725138A
Authority
TW
Taiwan
Prior art keywords
coil assembly
magnet
magnets
carrying holder
objective lens
Prior art date
Application number
TW094144701A
Other languages
Chinese (zh)
Other versions
TWI281591B (en
Inventor
Bao-Quan Chen
Qian-Ling Huang
Original Assignee
New Ken Technologies 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 New Ken Technologies Co Ltd filed Critical New Ken Technologies Co Ltd
Priority to TW94144701A priority Critical patent/TWI281591B/en
Application granted granted Critical
Publication of TWI281591B publication Critical patent/TWI281591B/en
Publication of TW200725138A publication Critical patent/TW200725138A/en

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
  • Lens Barrels (AREA)

Abstract

A focusing device includes a carrying holder, a coil assembly and a magnet unit. The carrying holder is provided to mount an objective lens and defines an optical axis passing through the objective lens. The coil assembly and the carrying holder are connected and the coil assembly surrounds and defines an accommodation space. The magnet unit is located in the accommodation space and composed of two magnets and a magnet permeable sheet. The magnet permeable sheet is sandwiched between two magnets with the same polarity facing each other. The magnet permeable sheet changes the directions of the line of magnetic force which are generated by magnets, and the changed directions are substantially perpendicular to the direction of the wire winding of the coil assembly. The current passing through the coil assembly is changed such that the coil assembly and the carrying holder are moved in the extending direction of the optical axis of the objective lens.
TW94144701A 2005-12-16 2005-12-16 Image pick-up system and focusing device TWI281591B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94144701A TWI281591B (en) 2005-12-16 2005-12-16 Image pick-up system and focusing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94144701A TWI281591B (en) 2005-12-16 2005-12-16 Image pick-up system and focusing device

Publications (2)

Publication Number Publication Date
TWI281591B TWI281591B (en) 2007-05-21
TW200725138A true TW200725138A (en) 2007-07-01

Family

ID=38751599

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94144701A TWI281591B (en) 2005-12-16 2005-12-16 Image pick-up system and focusing device

Country Status (1)

Country Link
TW (1) TWI281591B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI510078B (en) * 2012-04-30 2015-11-21 Wah Hong Ind Corp Camera system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI510078B (en) * 2012-04-30 2015-11-21 Wah Hong Ind Corp Camera system

Also Published As

Publication number Publication date
TWI281591B (en) 2007-05-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees