CN201060304Y

CN201060304Y - Micro-lens actuating mechanism protection structure

Info

Publication number: CN201060304Y
Application number: CNU2007201692537U
Authority: CN
Inventors: 王弘临
Original assignee: TDK Taiwan Corp
Current assignee: TDK Taiwan Corp
Priority date: 2007-06-28
Filing date: 2007-06-28
Publication date: 2008-05-14
Anticipated expiration: 2017-06-28

Abstract

The utility model relates to a micro lens actuate organization protecting structure, which is arranged inside a base of a focusing structure of the micro lens, and the micro lens actuate organization protecting structure comprises an upper cover, a bearing seat, at least an elastic part and an protecting sheet. The bearing seat can carry a lens; the elastic part connects the upper cover and the bearing seat, supports the bearing seat to hang in the base, thereby enabling the bearing seat to perform focusing displacement and reduction. The protecting sheet is arranged outside the elastic part and inside the hollow structure of the upper cover to restrict the horizontal movement of the bearing seat and also restrict the rotating torsion when the lens is arranged into the bearing seat to prevent the elastic part from deformation.

Description

Micro-lens actuating mechanism protection structure

Technical field

The utility model relates to a kind of micro-lens actuating mechanism protection structure, and particularly a kind of elastic component of the actuating structure that prevents to focus in micro-lens produces the protection structure of deformation.

Background technology

Because the progress of science and technology makes the volume of digital camera dwindle day by day, present mobile phone also mostly is equipped with the function of digital camera, and these all give the credit to the modularization and the microminiaturization of pick-up lens.The automatic focusing drives structure that numerous species is arranged in micro-lens, that the most generally used at present is voice coil motor (VCM), volume is little, power consumption is few owing to having for it, activate displacement accurately reaches advantages such as cheap, and the short distance that is suitable as the automatic focusing of micro-lens drives.

As shown in Figure 1, existing camera lens focusing drives structure includes a loam cake 10, one bottom 11, one lens bracket 12 and an outside framework 13, enclose all round in this outside framework 13 and embed four magnet 14 respectively, be provided with screw thread 15 in this lens bracket 12, can screw in and support a camera lens 16, these lens bracket 12 peripheries are embedded with a coil 17, these lens bracket 12 movable four magnet, 14 centers in outside framework 13, and produce by coil 17 energising that polarity of the magnetic fields repel each other with four magnet 14 or suction mutually, thereby drive lens bracket 12 actuatings of focusing, this lens bracket 12 reaches the center that shell fragment 19 is supported on four magnet 14 by shell fragment 18 on.

Reverse in the process of locking lens bracket 12 at camera lens 16, can produce a rotary torsion to lens bracket 12, and in order to the very thin thickness of the upper and

lower shell fragment

18,19 that supports, be generally 0.06 centimeter, and the string of shell fragment is very thin, as shown in Figure 2, so shell fragment is subjected to the influence of sealed torsion and deformation easily, even fracture.

Because camera lens focusing actuating structure is in order to reach power saving and to brake advantage rapidly; therefore but the elastic parts of support lens support 12 all is designed to the elastic and vertical activity; horizontal direction does not have the elastic force protection; therefore camera lens is afraid of to drop very much; this is because the large impact power when falling can cause camera lens movable in the horizontal direction; thereby cause the damage of elastic parts, even cause camera lens owing to inelastic protection is damaged.

Summary of the invention

The purpose of this utility model is, a kind of micro-lens actuating mechanism protection structure is provided, and can prevent that the elastic component in the micro-lens focusing actuating mechanism from producing deformation.

To achieve these goals; the utility model provides a kind of micro-lens actuating mechanism protection structure; it is arranged in the pedestal of micro-lens focusing structure; comprise a loam cake; one load bearing seat; at least one elastic component and at least one screening glass; this load bearing seat is for carrying one camera lens; this elastic component connects this loam cake and this load bearing seat; support this load bearing seat and it is suspended in the pedestal; make this load bearing seat can carry out the focusing displacement and the reduction of vertical direction; this screening glass is arranged on the outside of this elastic component; and be placed in the hollow structure of loam cake; carry out horizontal anomalous movement in order to limit this load bearing seat; and the rotary torsion of restriction when camera lens is packed load bearing seat into, prevent this elastic component distortion.

To achieve these goals; the above-mentioned micro-lens actuating mechanism protection structure that the utility model provides; be covered with at least one Embedded Division on wherein being somebody's turn to do; this screening glass is provided with at least one fastening part; Embedded Division corresponding to this loam cake; fastening part is inserted Embedded Division, makes this screening glass be fixed in loam cake and limit the rotation degree of this elastic component or the activity of horizontal direction.

Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.

Description of drawings

Fig. 1 is the three-dimensional exploded view of existing camera lens focusing drives structure;

Fig. 2 is the partial schematic sectional view of existing camera lens focusing drives structure among Fig. 1;

Fig. 3 is the three-dimensional exploded view of the utility model micro-lens actuating mechanism;

Fig. 4 is the part combination schematic perspective view of micro-lens movable device of the present utility model;

Fig. 5 is the partial schematic sectional view of micro-lens movable device of the present utility model.

Wherein, Reference numeral:

The 10-loam cake

The 11-bottom

The 12-lens bracket

The 13-outside framework

14-magnet

The 15-screw thread

The 16-camera lens

The 17-coil

The last shell fragment of 18-

Shell fragment under the 19-

The 30-loam cake

The 31-screening glass

32-first elastic component

The 33-support

The 34-magnet assembly

The 35-coil block

The 36-load bearing seat

37-second elastic component

The 39-camera lens

The 40-through hole

41-thread structure

The 42-Embedded Division

The 43-fastening part

The 50-pedestal

The 51-upper shell

The 52-base

Embodiment

As shown in Figure 3; this is the three-dimensional exploded view of the utility model micro-lens actuating mechanism; Fig. 4 is on the basis of Fig. 3; part combination schematic perspective view behind omission camera lens and the upper shell; micro-lens focusing structure of the present utility model comprises a pedestal 50; this pedestal 50 comprises a upper shell 51 and a base 52; comprise a loam cake 30 in this upper shell 51 again; one screening glass 31; one first elastic component 32; one support 33; a plurality of magnet assemblies 34; one coil block 35; one load bearing seat 36 and one second elastic component 37; this load bearing seat 36 is for carrying one camera lens 39; this load bearing seat 36 is a hollow annular structure and has a through hole 40; having between through hole 40 and camera lens 39 can corresponding sealed thread structure 41, so as with camera lens 39 lockings in through hole 40.

This loam cake 30 is a hollow structure, has at least one Embedded Division 42 around it, this first elastic component 32 and second elastic component 37 are a hollow structure, supply support bearing seat 36 and make it unsettled, this first elastic component 32 links load bearing seat 36 and loam cake 30, and this second elastic component 37 links load bearing seat 36 and base 52.

This coil block 35 is a hollow structure, is coated on the periphery of load bearing seat 36, and this support 33 is a hollow structure, is coated on the periphery of coil block 35, and this magnet assembly 34 is a permanent magnet, its be embedded at support 33 around; This coil block 35 can activate this load bearing seat 36 and the camera lens 39 generations focusing displacement of vertical direction up and down by energising with this magnet assembly 34, and supports and reduce by this first elastic component 32 and second elastic component 37; This base 52 be a hollow structure and its inner rim profile corresponding to the outer margin contour of this load bearing seat 36, this load bearing seat 36 can be contained in this base 52.

This screening glass 31 is a hollow structure; by making as hard materials such as sheet metal or plastic sheets; this screening glass 31 is arranged on the top or the outside of first elastic component 32; and be placed in the hollow structure of loam cake 30; make the screening glass 31 and the gap of loam cake 30 only be 0.12 centimeter; has at least one fastening part 43 around this screening glass 31; the Embedded Division 42 of its corresponding loam cake 30; by fastening part 43 is inserted Embedded Division 42; can make screening glass 31 be fixed in loam cake 30, thereby the activity that limits the rotation degree of this elastic component or horizontal direction is in 0.12 centimeter.

Please shown in Figure 5 in conjunction with consulting; this is a partial schematic sectional view of the present utility model; screw in the process of load bearing seat 36 at camera lens 39; camera lens 39 need reverse to be locked in the through hole 40; it can produce rotary torsion to the

elastic component

32,37 of support bearing seat 36; screening glass 31 is inserted the Embedded Division 42 of loam cake 30 by fastening part 43; make the rotation degree of load bearing seat 36 be restricted; screening glass 31 is because of the limited torsion that limits elastic component of rotation amplitude, makes the elastic component can be because of not rotating sealed torsion deformation.

Simultaneously; because screening glass 31 only can be vertical up and down movable; and horizontal anomalous movement is subjected to the restriction of fastening part and Embedded Division; and the thickness of screening glass can reach 0.25 centimeter; therefore have enough thickness and absorb impulsive force when falling; therefore when dropping, screening glass 31 can limit large impact power influence first flexure strip 32 in the horizontal direction displacement and produce deformation, thereby len avoids being subjected to the influence of impulsive force.

In sum; the utility model micro-lens actuating mechanism protection structure has a screening glass 31, coats first elastic component 32, and the rotary torsion of camera lens 39 is restricted; also can limit the activity of camera lens 39 horizontal directions, thereby can protect elastic component 32 to avoid producing distortion.

Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims

1. a micro-lens actuating mechanism protection structure is arranged in the pedestal of micro-lens focusing structure, it is characterized in that, comprising:

One loam cake is arranged in this pedestal, is a hollow structure;

One load bearing seat is for carrying one camera lens;

At least one elastic component connects this loam cake and this load bearing seat, supports this load bearing seat and it is suspended in this pedestal, makes this load bearing seat can carry out the focusing displacement and the reduction of vertical direction;

At least one screening glass is arranged on the outside of this elastic component, and is placed in the hollow structure of this loam cake, carries out horizontal anomalous movement in order to limit this load bearing seat, and the rotary torsion of restriction when camera lens is packed load bearing seat into, prevents this elastic component distortion.

2. micro-lens actuating mechanism protection structure as claimed in claim 1 is characterized in that also comprise a coil block and a support in this pedestal, this coil block is coated on the periphery of this load bearing seat; This support is coated on the periphery of this coil block, is embedded a plurality of magnet assemblies around it; This coil block and this magnet assembly can activate load bearing seat and the camera lens generation focusing displacement of vertical direction up and down by energising.

3. micro-lens actuating mechanism protection structure as claimed in claim 1; it is characterized in that; be covered with at least one Embedded Division on being somebody's turn to do; this screening glass is provided with at least one fastening part; this Embedded Division corresponding to this loam cake; this fastening part is inserted this Embedded Division, makes this screening glass be fixed in this loam cake, thereby limits the rotation degree of this elastic component or the activity of horizontal direction.