CN200947149Y

CN200947149Y - Automatic focusing lens module

Info

Publication number: CN200947149Y
Application number: CN200620113888.0U
Authority: CN
Inventors: 黄世超; 朱贤儒
Original assignee: Yipin Internat Science & Technology Co Ltd
Current assignee: Yipin Internat Science & Technology Co Ltd
Priority date: 2006-05-24
Filing date: 2006-05-24
Publication date: 2007-09-12
Anticipated expiration: 2016-05-24

Abstract

An automatic focusing lens module which is used to control the front and back motion of the lens through the electromagnetic force and the spring force is provided. The utility model comprises a rectangular bottom cover, two conducting strips, an insulating disc, four magnets, a lens sleeve, a lens, a loop, a spring and a rectangular top cover; wherein, the lens sleeve and the lens as well as the loop form a coupling lens set, while the spring is sleeved on the periphery of the loop and is elastically arranged between the ring shape outer flange of the lens sleeve and the top cover; and four magnets are respectively arranged on the four inner corners of the rectangular bottom cover that are close to the periphery of the spring, by which means, the efficiency as structure simplification, volume reduction and focusing motion stabilization can be realized.

Description

The autofocus lens module

Technical field

The utility model relates to a kind of autofocus lens module, the autofocus lens module that particularly a kind of mat electromagnetic force and spring force are focused automatically with forward and backward the moving of controls lens.

Background technology

Be equipped with camera lens module on the mobile phone of digital camera or tool shoot function, and described camera lens module comprises stepless or the far and near burnt two-part kenel of focusing automatically; Camera lens module must meet basically gently, approaches, short and small requirement, and must possess accuracy and durability; Yet the structure of existing camera lens module is still complicated, and volume is relatively large, is unfavorable for miniaturization; Existing structure utilizes shell fragment and electromagnetic force matching design forming equilibrium state, but described shell fragment is subject to external force deformation, comprise vibrations, playback (original position falls back) or long-time use after, consequently influence stationarity and the accuracy that camera lens moves; As from the foregoing, the design of camera lens module still has further room for improvement.

Summary of the invention

The utility model purpose is to provide a kind of autofocus lens module, but it is to utilize lens sleeve, camera lens and coil to form the lens group of interlock, the mat spring is supported between the ring-type outward flange and loam cake of lens sleeve again, it is peripheral and be positioned at four interior angle places of rectangle bottom that mat four magnet are located at spring respectively again, by this, make camera lens module reach designs simplification, volume-diminished and can stablize the effect that focusing is moved.

To achieve these goals, the utility model provides a kind of autofocus lens module, be to comprise bottom, two conducting strips, insulating trip, four magnet, lens sleeve, camera lens, coil, spring, and loam cake, it is characterized in that: bottom, it is the rectangle frame support body, its four jiaos places are provided with to fasten with four supports and supply to be buckled into one with loam cake, and its centre is provided with medium pore for the optical path that forms camera lens, and its place, inner face diagonal angle is provided with several location slightly; Conducting strip is that the mat pilot hole cooperates slightly with the location of bottom respectively, to be installed on the bottom and to form the electrical isolation state, forms the medium pore of medium pore with corresponding bottom again between two conducting strips; Magnet is symmetric shape and the magnet that slightly is circular arc, and vertically-arranged is in four support inboards of bottom respectively; Lens sleeve is a torus, is provided with medium pore, ring-type inward flange and ring-type outward flange; Camera lens is to be installed in the medium pore of lens sleeve; Coil is that to be set in camera lens peripheral and be fixed on the ring-type inward flange of lens sleeve, its, the tail end lead is the different electrodes that are connected to two conducting strips respectively; Spring is to be set in coil periphery, and is positioned on the ring-type outward flange of lens sleeve, makes its resiliency supported between described outward flange and loam cake inner edge surface; Loam cake is to be set on the bottom and to be buckled into one; The mat said structure, make lens sleeve, camera lens, and coil form can synchronization-moving lens group, and utilize coil and magnet interphase interaction to produce electromagnetic force to move axially, and mat spring restoring force is stablized lens group to move axially to drive lens group.

Described camera lens is fixed in the medium pore of lens sleeve by screw-in version.

Described coil is fixed on the ring-type inward flange of lens sleeve by adhesive means.

Four jiaos of places of described loam cake are provided with the rescinded angle end, make loam cake be set between four supports of bottom and are buckled into one.

Cover on described and be provided with two symmetry perforation, the head/tail end lead that makes coil is drawn by perforation respectively and is walked around the loam cake outer edge surface again and be welded on the conducting strip.

The focusing of described lens group is moved to adjust to move and is comprised stepless or automatic focusing kenel far away, nearly burnt two-part.

Advantage of the present utility model is: camera lens module designs simplification, volume-diminished and can stablize focusing and move.

Description of drawings

Fig. 1 is the stereographic map of the utility model embodiment;

Fig. 2 is the three-dimensional exploded view of Fig. 1;

Fig. 3 is the side sectional view of Fig. 1;

Fig. 4 A to Fig. 4 H is the syntagmatic synoptic diagram between each member of the utility model.

Description of reference numerals: camera lens module 1; Lens group 2; Bottom 10; Support 11; Medium pore 12; Location slightly 13; Projection 14; Conducting strip 20; Pilot hole 21; Lug 22; Medium pore 23; Insulating trip 30; Pilot hole 31; Medium pore 32; Magnet 40; Lens sleeve 50; Endoporus 51; Inward flange 52; Outward flange 53; Camera lens 60; Coil 70; Lead 71; Spring 80; Loam cake 90; Rescinded angle end 91; Perforation 92.

Embodiment

For making the utility model clear and definite more full and accurate, cooperate following preferred embodiment diagram to describe in detail now as after.

Referring to figs. 1 to Fig. 3, the utility model camera lens module 1 is to comprise rectangle bottom (base) 10, two conducting strips (copper plate) 20, insulating trip (insulation spacer) 30, four magnet 40, lens sleeve (lensholder) 50, camera lens 60, coil 70, spring 80, and rectangle loam cake (top cover) 90, wherein, lens sleeve 50, camera lens 60, and coil 70 be that form can synchronization-moving lens group 2, as shown in Figure 2, can between bottom 10 and loam cake 90, move up and down and reach the focusing effect.

Please also refer to Fig. 4 A to Fig. 4 H, it is the syntagmatic synoptic diagram between each member of the utility model, wherein, shown in Fig. 4 A, bottom 10 is rectangle frame support bodys, its four jiaos places are provided with and fasten with four supports 11 for being combined into one with loam cake 90, and its centre is provided with medium pore 12 for the optical path that forms camera lens 60 again, again its inner face be respectively equipped with several location slightly 13 and every edge with protruding 14.For another example shown in Fig. 4 B, two conducting strips 20 be respectively its pilot hole 21 of mat with locate slightly 13 and cooperate, to be installed on the bottom 10 and to form the electrical isolation state, each mat lug 22 connects different electrodes again, forms the medium pore 12 of medium pore 23 with corresponding bottom 10 again between two conducting strips 20.For another example shown in Fig. 4 C, to be its pilot holes 31 of mat 13 cooperate and be sticked on two conducting strips 20 with the location insulating trip 30 slightly, and its tool medium pore 32 is with corresponding

medium pore

12,23 again.For another example shown in Fig. 4 D, four magnet 40 are tool symmetric shapes and slightly are circular arc, and vertically-arranged is in four supports, 11 inboards of rectangle bottom 10 respectively, but and the inner edge surface of mat loam cake 90 location, but four magnet 40 also can place four jiaos of places of inner edge surface of loam cake 90 respectively earlier and fix, in order to assembling operation.Shown in Fig. 4 E, 4F, 4G, the 4H, the sequence between each member does not limit for another example, and wherein, lens sleeve 50 is torus, is provided with medium pore 51, ring-type inward flange 52 and ring-type outward flange 53; Camera lens 60 is to lock in the medium pore 51 of lens sleeve 50, but the mat screw-in version is fixing as shown in Figure 3 between the two; Coil 70 is that to be set in camera lens 60 peripheral and be fixed on the ring-type inward flange 52 of lens sleeve 50, but the mat adhesive means is fixed between coil 70 and the lens sleeve 50, make lens sleeve 50, camera lens 60, and coil 70 form can synchronization-moving lens group 2 as shown in Figure 2; Lens group 2 is arranged on above the insulating trip 30 again, makes camera lens 60 and each

medium pore

12,23,32 be same central shaft; Spring 80 is to be set in coil 70 peripheries, and block makes its resiliency supported between described outward flange 53 and loam cake 90 inner edge surfaces on the ring-type outward flange 53 of lens sleeve 50; Again as shown in Figure 1, loam cake 90 is the housings that cooperate bottom 10 designs, its four jiaos places are provided with rescinded angle end 91, make loam cake 90 can be set between four supports 11 of bottom 10 and be buckled into one, forming camera lens module 1, and make four magnet, 40 clampings between loam cake 90 inner edge surfaces and insulating trip 30 and can not be shifted; Loam cake 90 is provided with two symmetry perforation 92 again, making the head/tail end lead 71 of the coil 70 of loam cake 90 inside can pass perforation 92 respectively walks around loam cake 90 outer edge surfaces again and is welded on two conducting strips 20 of different electrodes, make lens barrel group 2 in the focusing traverse, still keep the electric connection state between coil 70 and the conducting strip 20, and use and prevent that lead 71 from rupturing because of the long-time telescopic movables up and down of lens group 2.

During assembling, spring 80 can adopt the compression spring, and when loam cake 90 and bottom 10 are combined into one, described spring 80 can be compressive state, and, make lens group 2 parked lower dead point positions in its flexible traverse, and form burnt position far away relatively to lower compression lens sleeve 50; The head of coil 70, tail end can change different electrodes and size of current again, use the N that cooperates magnet 40, the S utmost point and produce up/down and different strong and weak electromagnetic force, use driving lens group 2 and between loam cake 90 inner edge surfaces and insulating trip 30, move up and down to focus action; And in the present embodiment, the producing method of

coil

70 and 40 electromagnetic forces of magnet only can select to produce upwards (preceding) electromagnetic force, makes when burnt position far away, and coil 70 obstructed electric currents make lens group 2 not be subjected to the electromagnetic force effect and rest on burnt position far away; When desiring to focus action, then Control current is by coil 70, using the generation electromagnetic force moves up to order about lens group 2, and form nearly burnt state, and when suffered electromagnetic force on the lens group 2 and spring 80 compressive force balance, lens group 2 promptly rests on position, described adjustment back, therefore, lens group 2 by Jiao far away upwards (preceding) move to nearly burnt position must the mat electromagnetic force, by nearly burnt position downwards (back) but return back to the then restoring force of mat spring 80 of burnt position far away, use and reach far and near focusing adjustment effect.Utilize line design again, can make lens group 2 reach stepless or have only the automatic focusing kenel of far and near burnt two-part.

The utility model camera lens module 1 compares with existing camera lens module, because composition member of the present utility model reduces, and only utilize spring 80 to be set on the ring-type outward flange 53 of lens sleeve 50, four magnet, 40 difference vertically-arrangeds are in four supports, 11 inboards of rectangle bottom 10 again, so designs simplification, also reduce volume relatively, more help dwindling camera lens module 1.

Above-mentioned graphic and explanation of taking off only is embodiment of the present utility model, and is non-for limiting embodiment of the present utility model; Generally those skilled in the art, it complies with feature category of the present utility model, and other equivalence of being done changes or modifies, and all should be encompassed in the claim of following this case.

Claims

1. autofocus lens module is to comprise bottom, two conducting strips, insulating trip, four magnet, lens sleeve, camera lens, coil, spring, and loam cake, it is characterized in that:

Bottom is the rectangle frame support body, and its four jiaos places are provided with to fasten with four supports and supply to be buckled into one with loam cake, and its centre is provided with medium pore for the optical path that forms camera lens, and its place, inner face diagonal angle is provided with several location slightly;

Conducting strip is that the mat pilot hole cooperates slightly with the location of bottom respectively, to be installed on the bottom and to form the electrical isolation state, forms the medium pore of medium pore with corresponding bottom again between two conducting strips;

Magnet is symmetric shape and the magnet that slightly is circular arc, and vertically-arranged is in four support inboards of bottom respectively;

Lens sleeve is a torus, is provided with medium pore, ring-type inward flange and ring-type outward flange;

Camera lens is to be installed in the medium pore of lens sleeve;

Coil is that to be set in camera lens peripheral and be fixed on the ring-type inward flange of lens sleeve, its, the tail end lead is the different electrodes that are connected to two conducting strips respectively;

Spring is to be set in coil periphery, and is positioned on the ring-type outward flange of lens sleeve, makes its resiliency supported between described outward flange and loam cake inner edge surface;

Loam cake is to be set on the bottom and to be buckled into one.

2. autofocus lens module as claimed in claim 1 is characterized in that: described camera lens is fixed in the medium pore of lens sleeve by screw-in version.

3. autofocus lens module as claimed in claim 1 is characterized in that: described coil is fixed on the ring-type inward flange of lens sleeve by adhesive means.

4. autofocus lens module as claimed in claim 1 is characterized in that: four jiaos of places of described loam cake are provided with the rescinded angle end, make loam cake be set between four supports of bottom and are buckled into one.

5. autofocus lens module as claimed in claim 1 is characterized in that: cover on described and be provided with two symmetry perforation, the head/tail end lead that makes coil is drawn by perforation respectively and is walked around the loam cake outer edge surface again and be welded on the conducting strip.

6. autofocus lens module as claimed in claim 1 is characterized in that: described lens sleeve, camera lens and coil are arranged between loam cake inner edge surface and the insulating trip, move up and down.