CN101354465A

CN101354465A - Lens module

Info

Publication number: CN101354465A
Application number: CNA2007102011871A
Authority: CN
Inventors: 黄全德; 苏宪禹
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: 2007-07-26
Filing date: 2007-07-26
Publication date: 2009-01-28

Abstract

The invention relates to a lens module, comprising a drawtube, a first lens which is arranged inside the drawtube, a first lens and a anti-dazzling screen which is arranged between the first lens and the second lens; the first lens is provided with a plurality of matching parts; the second lens is provided with a plurality of matching parts which are matched with the first matching parts; and the anti-dazzling screen is provided with a plurality of through holes which are matched with the first matching parts or the second matching parts.

Description

The camera lens module

Technical field

The present invention relates to a kind of camera lens module, relate in particular to a kind of camera lens module that is applied in the electronic products such as mobile phone, digital camera, PDA and Note Book.

Background technology

In recent years, along with Development of Multimedia Technology, the range of application of camera lens module is more and more wider, as is applied to digital camera, video camera and has in the electronic products such as mobile phone of camera function.At people's logarithmic code camera, video camera and when having the mobile phone pursuit miniaturization of camera function, the quality of image to its object of shooting is also had higher requirement, the image frame of promptly wishing shot object is clear, and the image quality of object depends in the assembling process to a great extent, and whether the optical axis of each lens in the camera lens module aligns.So the assembling of lens must be quite accurate, with the probability of raising optical axis alignment, thus the image quality of raising camera lens module.

The camera lens module generally includes elements such as lens barrel (Barrel), microscope base (Holder), lens, spaced ring and optical filter, and wherein, lens, spaced ring and optical filter are fixed in the lens barrel successively along optical axis direction.Because the deviation that lens exist in manufacture process, the skew of certain displacement can take place in its optical axis in the radial direction along lens, therefore, in the assembling process of camera lens module, usually adopt the method for the orientation assembling between lens to realize optimizing the purpose of the image quality of camera lens module.In the prior art, be the shape that has otch with lens design usually, be beneficial to the location, therefore described otch can be judged the orientation angle as benchmark, thereby finish the orientation assembling between lens.The optical axis that has disclosed owing to each lens in the camera lens module among the paper Zoom lens calibration for wind tunnelmeasurements that people such as Alpheus W.Burner deliver in nineteen ninety-five SPIE system, the image metrology fourth session (Videometrics IV) does not line up the influence that produces.

Yet available technology adopting is manually assembled, and judges the orientation angle by naked eyes, thereby the orientation angular error is bigger, is difficult to realize the degree of accuracy of orientation angle, has reduced the image quality of camera lens module.

Summary of the invention

In view of this, provide a kind of and can realize that it is necessary that the orientation angle between the lens accurately reaches the camera lens module that improves image quality real.

A kind of camera lens module, it comprises: a lens barrel, be arranged at one first lens, second lens and an anti-dazzling screen that is arranged between described first lens and second lens in the described lens barrel, wherein, described first lens are provided with a plurality of first auxiliary sections, described second lens are provided with second auxiliary section of matching in a plurality of and described first auxiliary section, and described anti-dazzling screen is provided with the through hole that matches in a plurality of and described first auxiliary section or described second auxiliary section.

With respect to prior art, described camera lens module is by cooperating the orientation angle that realizes between described first lens and described second lens accurate between described first auxiliary section and described second auxiliary section, thereby improved the image quality of camera lens module.In addition, cooperate the degree that closely cooperates that has increased between described first lens and described second lens between described first auxiliary section and described second auxiliary section, thereby further improved the usability of camera lens module.

Description of drawings

The cut-open view of a kind of camera lens module that Fig. 1 provides for first embodiment of the invention.

Fig. 2 is the stereographic map of first lens of camera lens module shown in Figure 1.

Fig. 3 is the cut-open view of first lens shown in Figure 2.

Fig. 4 is the stereographic map of second lens of camera lens module shown in Figure 1.

Fig. 5 is the cut-open view of second lens shown in Figure 4.

Fig. 6 is the stereographic map of the anti-dazzling screen of camera lens module shown in Figure 1.

The cut-open view of a kind of camera lens module that Fig. 7 provides for second embodiment of the invention.

Fig. 8 is the vertical view of first lens in the camera lens module shown in Figure 1, second lens and anti-dazzling screen.

Embodiment

The present invention is described in further detail below in conjunction with accompanying drawing.

See also Fig. 1, a kind of camera lens module 10 that provides for first embodiment of the invention, it comprises a lens barrel 11, is arranged on one first lens 12 in the described lens barrel 11, second lens 13 and an anti-dazzling screen 14 that is arranged between described first lens 12 and second lens 13.

See also Fig. 2 and Fig. 3, described first lens 12 are provided with a plurality of first auxiliary sections, and in the present embodiment, described first auxiliary section is a groove 121.Described first lens 12 also have one first otch 122.Described groove 121 is arranged on described first lens 12 in the circumference equal intervals, and the cross sectional shape of described groove 121 is arc.Certainly, the cross sectional shape of described groove 121 also can be other shapes, for example rectangle or triangle.Described first otch 122 be shaped as rectangle.

See also Fig. 4 and Fig. 5, described second lens 13 have second auxiliary section that a plurality of and described groove 121 matches, and in the present embodiment, described second auxiliary section is a projection 131.Described second lens 13 also have one second otch 132.Described protruding 131 are arranged on described second lens 13 in the circumference equal intervals, and described protruding 131 cross sectional shape is arc.Certainly, described protruding 131 cross sectional shape also can be other shapes, for example rectangle or triangle.Described second otch 132 be shaped as rectangle.

See also Fig. 6, described anti-dazzling screen 14 is provided with a plurality of and described protruding 131 through holes that match 141, and described through hole 141 is arranged on the described anti-dazzling screen 14 in the circumference equal intervals.As shown in Figure 1, described protruding 131 pass described through hole 141 and cooperate with described groove 121.

See also Fig. 7, a kind of camera lens module 20 that provides for second embodiment of the invention.Described camera lens module 20 is with the difference of the camera lens module 10 that described first embodiment provides: first lens 22 extend a teat 223 along its optical axis direction in the described camera lens module 20, thereby form a groove, and second lens 23 are contained in the described groove.

Please consult Fig. 1 and Fig. 8 together, the assembling process of the camera lens module 10 that first embodiment of the invention provides is as follows:

At first, the through hole 141 of described anti-dazzling screen 14 is relative with the projection 131 of described second lens 13, and described anti-dazzling screen 14 and described second lens 13 are fitted together.

Secondly, with second otch 132 of first otch 122 of described first lens 12 and described second lens 13 as benchmark, as shown in Figure 8, A1 and A2 represent the optical axis of described first lens 12 and described second lens 13 respectively, orientation angle between described second lens 13 and described first lens 12 is 90 degree, described second lens, 13 clockwise direction are revolved turn 90 degrees, simultaneously that the projection 131 of described second lens 13 is relative with the groove 121 of described first lens 12, by accurately realizing that orientation angle between described second lens 13 and described first lens 12 is 90 degree cooperating between the described groove 121 and described protruding 131, and described anti-dazzling screen 14 and described second lens 13 are assembled into a lens combination with described first lens 12.

At last, described lens combination is placed lens barrel 11.

The camera lens module 10 that the embodiment of the invention provides, cooperate the orientation angle that realizes between described first lens 12 and described second lens 13 accurate between groove 121 by described first lens 12 and the projection 131 of described second lens 13, thereby improved the image quality of camera lens module.In addition, increase the degree that closely cooperates between described first lens 12 and described second lens 13 cooperating between the described groove 121 and described protruding 131, thereby further improved the usability of camera lens module.

Be appreciated that described first lens are provided with a plurality of first auxiliary sections, for example protruding, described second lens are provided with a plurality of second auxiliary sections, for example groove.Described first auxiliary section cooperates with described second auxiliary section, thereby with described first lens and described second entirety of lens package together.

In addition, those skilled in the art can also do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included within the present invention's scope required for protection.

Claims

1. camera lens module, it comprises: a lens barrel, be arranged at one first lens, second lens and an anti-dazzling screen that is arranged between described first lens and second lens in the described lens barrel, it is characterized in that, described first lens are provided with a plurality of first auxiliary sections, described second lens are provided with second auxiliary section of matching in a plurality of and described first auxiliary section, and described anti-dazzling screen is provided with the through hole that matches in a plurality of and described first auxiliary section or described second auxiliary section.

2. camera lens module as claimed in claim 1 is characterized in that, described first auxiliary section is a groove, and described second auxiliary section is a projection, and described projection is passed described through hole and described groove fit.

3. camera lens module as claimed in claim 2 is characterized in that, the cross sectional shape of described groove is arc, rectangle or triangle.

4. camera lens module as claimed in claim 2 is characterized in that, described a plurality of grooves are arranged on described first lens in the circumference equal intervals.

5. camera lens module as claimed in claim 1 is characterized in that, described first lens have one first otch, and described second lens have one and corresponding second otch of described first otch, and described first otch and described second otch are used for the location.

6. camera lens module as claimed in claim 1 is characterized in that, described first lens have one along the extended jut of its optical axis direction, thereby form a groove, and described second lens are contained in the described groove.

7. camera lens module as claimed in claim 1 is characterized in that, described first auxiliary section is a projection, and described second auxiliary section is a groove, and described projection is passed described through hole and described groove fit.