CN2731480Y

CN2731480Y - Lens module of portable electronic device

Info

Publication number: CN2731480Y
Application number: CN 200420083564
Authority: CN
Inventors: 江宗韦; 李俊佑; 蔡明江
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-08-28
Filing date: 2004-08-28
Publication date: 2005-10-05
Anticipated expiration: 2014-08-28

Abstract

The utility model discloses a lens module assembly for a portable electronic device comprising a base, a lens barrel and a lens group. The lens group includes a plurality of eyeglasses, wherein an eyeglass extends a tube part to at least one side along the periphery. A central axis of the tube part superposes with a lens axis of the eyeglass, while the rest of the eyeglasses are arranged inside the tube part. By the design, the lens axis of the lens module assembly is limited by the lens group, not by the lens barrel. So the lens axis bias is decreased by decreasing the assembling tolerance, and the image-forming quality is improved in consequence.

Description

Portable electronic equipment camera lens module

[technical field]

The utility model is about a kind of portable electronic equipment camera lens module, especially about a kind of portable electronic equipment camera lens module that reduces to assemble tolerance.

[background technology]

Digital camera is day by day popularized, and people are also more and more higher to the requirement of its image quality, and producing the optical axis deviation problem in the assembling process of camera lens then is one of key factor that influences image quality.

The basic structure of existing portable electronic equipment usefulness camera lens module is No. 9221832 patent in Taiwan that the inventor filed an application in 2003 as shown in Figure 3.This patented claim has disclosed a kind of camera lens of portable electronic equipment, its lens barrel 10 ' is formed with a hollow channel 102 ' in it, and it is installed within the pedestal 20 ', be embedded with a plurality of eyeglasses 30 ', 31 ' in this hollow channel 102 ', in order to converging on the image sensor by this eyeglass 30 ', 31 ' light signal.Wherein, these a plurality of eyeglasses 30 ', 31 ' all cooperate with lens barrel 10 ', and the optical axis of its eyeglass all limits by lens barrel 10 '.But every eyeglass all has different tolerance dimensions, and lens barrel 10 ' itself also has the cause of tolerance, tolerance was bigger when it will cause assembling, especially work as eyeglass more for a long time, the position of these a plurality of eyeglasses all is to limit by lens barrel 10 ', each lens light axis all can produce certain deviation, thereby influences the image quality of this camera lens module.

At the problems referred to above, be necessary to provide a kind of portable electronic equipment camera lens module that reduces to assemble tolerance, raising image quality and can reduce to produce optical axis deviation.

[utility model content]

The purpose of this utility model is to provide a kind of portable electronic equipment camera lens module that reduces to assemble tolerance, raising image quality and can reduce optical axis deviation.

In order to realize the purpose of this utility model, the utility model provides a kind of portable electronic equipment camera lens module, comprise a pedestal, a lens barrel and a lens set, this lens set comprises a plurality of eyeglasses, wherein, one eyeglass extends a tube to a side at least along its circumference, the central shaft of this tube and the optical axis coincidence of this eyeglass, and all the other eyeglasses then are installed in the above-mentioned tube.

Compare prior art, one eyeglass of the utility model lens set extends tube, and fixing is installed all the other eyeglasses in this tube, by this method for designing, its optical axis limits by lens set itself, be not to limit, therefore reduce to assemble tolerance, can reduce to produce optical axis deviation, thereby improve image quality by lens barrel.

[description of drawings]

Fig. 1 is the cut-open view of the utility model first embodiment portable electronic equipment with the camera lens module;

Fig. 2 is the eyeglass assembled sectional view of the utility model second embodiment portable electronic equipment with the camera lens module;

Fig. 3 is the view sub-anatomy of existing portable electronic equipment with the camera lens module.

[embodiment]

The utility model portable electronic equipment is to be used for small digital cameras with the camera lens module, or portable electronic equipments such as the mobile phone of band camera, PDA.

Please refer to shown in Figure 1ly, the utility model portable electronic equipment comprises a lens barrel 10, a pedestal 20 and a lens set 30 with the camera lens module.The first half of this pedestal 20 is a hollow cylindrical, is used to install lens barrel 10, and Lower Half is a hollow, rectangular shape structure, puts image sensor (figure does not show) in it.Lens barrel 10 is hollow cylindrical structures, and the internal diameter of its external diameter and pedestal 20 is suitable.Be formed with a hollow channel 102 in this lens barrel 10, in this hollow channel 102 lens set 30 is housed, the optical axis of lens set 30 overlaps with the central shaft of this hollow channel 102, and so, the light signal of object can converge on the image sensor (figure does not show) by lens set 30.The surface coverage of lens barrel 10 has a transparent cover body 101, in order to protection lens set 30 and prevent impurity such as dust from entering in the lens barrel 10 and influence image quality.

Lens set 30 comprises primary mirror sheet 301 and pair of glasses 302, wherein, this primary mirror sheet 301 extends tube 3011 along its periphery to a side, the optical axis coincidence of the central shaft of this tube 3011 and this primary mirror sheet 301, one pair of glasses 302 is placed in the tube 3011 of this primary mirror sheet 301, and this pair of glasses 302 makes the central shaft of its optical axis and tube 3011 and the optical axis coincidence of primary mirror sheet 301 by tube 3011 restrictions of primary mirror sheet 301.Be appreciated that in the tube 3011 of primary mirror sheet 301 a plurality of pair of glasses can be installed.

During assembling, earlier pair of glasses 302 is placed in the tube 3011 of primary mirror sheet 301.Secondly, lens set 30 is installed within the lens barrel 10, the optical axis of lens set 30 and the central shaft of hollow channel 102 are coincided.And the center of the transparent cover body 101 of lens barrel 10 is just in time corresponding to the optical axis of lens set 30.At last, the lens barrel after the above-mentioned assembling 10 is installed in the first half of hollow cylindrical pedestal 20, this pedestal 20 is fixed in and is provided with on the image sensor substrate of (figure does not show) (figure does not show).Be appreciated that and the tube 3011 of primary mirror sheet 301 can be assembled near the top of lens barrels 10, also can be with the lens section of primary mirror sheet 301 bottom near lens barrel 10, and the pair of glasses 302 that is placed in the tube 3011 is assembled near the top of lens barrels 10.

Please refer to shown in Figure 2, the utility model portable electronic equipment is roughly the same with second embodiment and first embodiment of camera lens module, its difference is, the primary mirror sheet 311 of lens set 31 is extended with tube (not indicating among the figure) to both sides, be equipped with first pair of glasses 312 in first tube of one side (not indicating among the figure), be equipped with second pair of glasses 313 in second tube of its opposite side (not indicating among the figure).Be appreciated that in each tube (among the figure indicate) of primary mirror sheet 311 a plurality of pair of glasses can be installed.

According to feature of the present utility model, advantage of the present utility model is as follows: because each eyeglass Optical axis limited by lens set itself, and be not the exterior part that utilizes lens set (mirror for example Tube etc.) limit, therefore can reduce to assemble tolerance, so that reduce the impact to optical property, The part degree of integration height of this design, structure are simplified, and are difficult for bringing into dust.

Claims

1. portable electronic equipment camera lens module, comprise a pedestal, a lens barrel and a lens set, this lens barrel is installed within the pedestal, be formed with a hollow channel in it, it is characterized in that, this lens set comprises a plurality of eyeglasses, wherein, one eyeglass extends a tube to a side at least along its circumference, the central shaft of this tube and the optical axis coincidence of this eyeglass, and all the other eyeglasses then are installed in the above-mentioned tube.

2. portable electronic equipment camera lens module as claimed in claim 1 is characterized in that wherein an eyeglass of this lens set is extended with tube to a side.

3. portable electronic equipment camera lens module as claimed in claim 2 is characterized in that, wherein is equipped with an eyeglass in the tube of this eyeglass.

4. portable electronic equipment camera lens module as claimed in claim 2 is characterized in that, wherein is equipped with a plurality of eyeglasses in the tube of this eyeglass.

5. portable electronic equipment camera lens module as claimed in claim 1 is characterized in that wherein an eyeglass of this lens set is extended with tube to both sides.

6. portable electronic equipment camera lens module as claimed in claim 5 is characterized in that, wherein respectively is equipped with an eyeglass in two tubes of this eyeglass.

7. portable electronic equipment camera lens module as claimed in claim 5 is characterized in that, wherein is equipped with a plurality of eyeglasses in two tubes of this eyeglass.

8. portable electronic equipment camera lens module as claimed in claim 1 is characterized in that wherein the central shaft of the hollow channel of this lens barrel and this tube coincides.

9. portable electronic equipment camera lens module as claimed in claim 1 is characterized in that wherein this lens barrel is provided with a transparent cover body.