Voice coil motor array module

Patent metadata

Field	Value
Publication number	US-9632279-B2
Application number	US-201514623865-A
Country	US
Kind code	B2
Filing date	Feb 17, 2015
Priority date	Apr 30, 2014
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A voice coil motor array module includes a carrier frame defining a plurality of receiving spaces and a plurality of magnet-mounting spaces disposed in pairs and in symmetry around the receiving spaces. Any two adjacent receiving spaces have only one magnet-mounting space therebetween. A plurality of magnetic components are respectively disposed in the magnet-mounting spaces. Each magnet-mounting space receives only one magnetic component. The magnetic components surrounding a corresponding receiving space have same magnetic poles facing each other. A plurality of displacement components are respectively disposed in the receiving spaces. Each displacement component includes a lens carrier and a coil.

First claim

What is claimed is:

1. A voice coil motor array module comprising:
a carrier frame defining a plurality of receiving spaces arranged in an (M)×(N) matrix array on a plane, and a plurality of magnet-mounting spaces, M and N being positive integers, said magnet-mounting spaces being disposed in pairs and in symmetry around said receiving spaces;
a plurality of magnetic components respectively disposed in said magnet-mounting spaces, each of said magnet-mounting spaces receiving only one said magnetic component, said magnetic components surrounding a corresponding one of said receiving spaces having same magnetic poles facing each other; and
a plurality of displacement components respectively disposed in said receiving spaces, each of said displacement components including a lens carrier and a coil;
wherein, any two adjacent ones of said receiving spaces have only one said magnet-mounting space therebetween for receiving a shared magnetic component; and
wherein, when said coil of one of said displacement components is energized, said coil interacts with said magnetic components that surround a corresponding one of said receiving spaces to generate a force that displaces said lens carrier of said one of said displacement components along a normal direction of the plane.

2. The voice coil motor array module as claimed in claim 1 , further comprising at least one elastic member that is substantially parallel to the plane and that is disposed in said carrier frame, said elastic member being deformed when said displacement components are displaced to generate a resilient force that balances the displacement force, said elastic member having a plurality of through holes corresponding in position to said receiving spaces.

3. The voice coil motor array module as claimed in claim 1 , wherein, when M=1 and N>1, said receiving spaces are linearly arranged on the plane along a first direction.

4. The voice coil motor array module as claimed in claim 3 , wherein each of said receiving spaces is surrounded by two said magnet-mounting spaces, and a connecting direction of two magnetic poles of each of said magnetic components is parallel to the first direction.

5. The voice coil motor array module as claimed in claim 4 , wherein said coil is wound around said lens carrier, and any two said coils located on two adjacent ones of said receiving spaces have opposite winding directions.

6. The voice coil motor array module as claimed in claim 3 , wherein each of said receiving spaces is surrounded by four said magnet-mounting spaces, a connecting direction of two magnetic poles of each of most of said magnetic components being parallel to the first direction, a connecting direction of two magnetic poles of each of the remaining number of said magnetic components being perpendicular to the first direction.

7. The voice coil motor array module as claimed in claim 6 , wherein said coil is wound around said lens carrier, and any two said coils located on two adjacent ones of said receiving spaces have opposite winding directions.

8. The voice coil motor array module as claimed in claim 1 , wherein, when M>1 and N>1, said receiving spaces are arranged on the plane along a first direction and a second direction transverse to the first direction, each of said receiving spaces being surrounded by four said magnet-mounting spaces, a connecting direction of two magnetic poles of each of a predetermined portion of said magnetic components being parallel to the first direction, a connecting direction of two magnetic poles of each of a remaining portion of said magnetic components being parallel to the second direction.

9. The voice coil motor array module as claimed in claim 8 , wherein said coil is wound around said lens carrier, and any two said coils located on two adjacent ones of said receiving spaces have opposite winding directions.

10. A voice coil motor array module comprising:
a carrier frame defining a plurality of receiving spaces arranged on a plane in mutual alignment along a first direction, and a plurality of magnet-mounting spaces, said magnet-mounting spaces being disposed in pairs and in symmetry around said receiving spaces;
a plurality of magnetic components respectively disposed in said magnet-mounting spaces, each of said magnet-mounting spaces receiving only one said magnetic component, said magnetic components surrounding a corresponding one of said receiving spaces opposing one another transversely across the first direction and mutually oriented with magnetic poles of the same polarity facing each other transversely across the first direction, a connecting direction of two magnetic poles of each of said magnetic components being perpendicular to the first direction, the mutually aligned receiving spaces being thereby arranged along the first direction uninterrupted by any magnetic component interposed therebetween; and
a plurality of displacement components respectively disposed in said receiving spaces, each of said displacement components including a lens carrier and a coil;
wherein, when said coil of one of said displacement components is energized, said coil interacts with said magnetic components that surround a corresponding one of said receiving spaces to generate a force that displaces said lens carrier of said one of said displacement components along a normal direction of the plane.

11. The voice coil motor array module as claimed in claim 10 , further comprising at least one elastic member that is substantially parallel to the plane and that is disposed in said carrier frame, said elastic member being deformed when said displacement components are displaced to generate a resilient force that balances the displacement force, said elastic member having a plurality of through holes corresponding in position to said receiving spaces.

Assignees

• Lite On Electronics Guangzhou Ltd
• Lite On Technology Corp

Inventors

• Chen Hsing-Hung

Classifications

• H04N23/90

  Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums · CPC title

• G02B7/04 Primary

  with mechanism for focusing or varying magnification · CPC title

• H02K41/0356

  moving along a straight path · CPC title

• G02B3/0006

  Arrays (G02B3/02, G02B5/188 take precedence) · CPC title

• G02B7/08 Primary

  adapted to co-operate with a remote control mechanism · CPC title