CN103327226A - Optical filter, manufacturing method thereof and mobile phone camera shooting module set comprising optical filter - Google Patents

Abstract

At least one diagonal plane is formed along the edge of an optical filter, and an included angle is formed between the diagonal plane and one surface of the optical filter. A mobile phone camera shooting module set comprises a support, a camera shooting module and the optical filter. A containing groove is formed in the surface of the support, a light permeating hole is formed in the center of the bottom of the containing groove, and the side wall of the containing groove is coated by a first glue layer. The camera shooting module is arranged on the surface of the support and covers the containing groove, and an optical axis of the camera shooting module passes through the center of the light permeating hole. The optical filter is contained in the containing groove and covers the light permeating hole, the optical filter is connected with the first glue layer in an adhesive mode, and a gap is formed between the diagonal plane of the optical filter and the side wall of the containing groove. The gap can contain excessive glue of the first glue layer, and can prevent glue from overflowing to the surface of the optical filter when the optical filter is bonded with the camera shooting module, a light path of a light ray cannot be affected, and the image effect of the camera shooting module set cannot be affected. The invention further provides a manufacturing method of the optical filter.

Description

Filter and preparation method thereof and contain the cell-phone camera module of this filter

Technical field

The present invention relates to the cell-phone camera field, particularly relate to a kind of filter and contain the cell-phone camera module of this filter and the manufacture method of this filter.

Background technology

At present, be provided with a kind of filter in the mobile telephone image module, this kind filter is used for filtering the people and is invisible to the naked eye, the Infrared that lens wearer but can reflect and ultraviolet light.This kind filter can improve some bad problems of cell-phone camera module, such as aberration, shade, ghost, fuzzy, dazzle etc., and can strengthen the transmitance that light enters module group lens, improve the image effect of mobile phone module.When at assembling cell-phone camera module, filter need to be bonded in the VCM voice coil motor support with glue.In assembling process, often need to push filter, so that filter can be bonding firmly with VCM voice coil motor support.Because extruding, glue meeting spill-over is to filter, thereby impact affects the imaging effect of camera module by the light path of the light of this filter.

Summary of the invention

Based on this, be necessary to provide a kind of and can prevent that the glue spill-over from affecting cell-phone camera module and the filter thereof of the imaging effect of camera module to filter.

A kind of filter is installed in the cell-phone camera module, and described filter forms at least one scarf along the edge, is formed with angle between the surface of described scarf and described filter.

Therein among embodiment, described filter comprises first surface and the second surface relative with described first surface, described second surface is incidence surface, and described scarf is a plurality of, and the equal and opposite in direction of the angle between a plurality of described scarf and the described first surface.

Among embodiment, the size of described angle is the arbitrary value between 30 °～60 ° therein.

Among embodiment, the size of described angle is 45 ° therein.

Among embodiment, described filter is square, circular or oval filter therein.

Therein among embodiment, described scarf is trapezoidal, isosceles trapezoid or annular surface.

Among embodiment, described filter is infrared fileter or smalt filter therein.

A kind of cell-phone camera module comprises:

Support, the surface offers accepting groove, and the bottom center of described accepting groove offers light hole, and the sidewall of described accepting groove scribbles the first glue-line;

Photographing module is located on the described support, and is covered on the described accepting groove, and the optical axis of described photographing module is by the center of described light hole; And

Above-mentioned filter, described filter is contained in the described accepting groove, and covers described light hole top, and described filter and described the first glue-line are bonding, and form the gap between the sidewall of the scarf of described filter and described accepting groove;

Wherein, the excessive glue of described the first glue-line can be accommodated in described gap.

Among embodiment, described accepting groove is square therein, and the drift angle place of described accepting groove offers arc groove.

The manufacture method of above-mentioned filter also is provided.

A kind of manufacture method of filter may further comprise the steps:

Filter is fixed on the cutting position of cutting machine;

Delivery port is aimed at filter, current flushing filter;

The edge of blade cuts filter forms angle between the surface of blade and filter.

The filter that utilizes said method to make is installed in the cell-phone camera module, can prevents in bonding filter and photographing module, the glue spill-over above filter, thereby affect the light path of light, affect the image effect of camera module.

Simultaneously, the edge of filter is scarf, and compared to traditional filter, the contact area of filter and the first glue-line increases, and can strengthen the fastness of filter.

Description of drawings

Fig. 1 is the cutaway view of the cell-phone camera module of an execution mode;

Fig. 2 is cell-phone camera module medium-height trestle shown in Figure 1 and the stereogram of filter;

Fig. 3 is the partial enlarged drawing of cell-phone camera module shown in Figure 1;

Fig. 4 is the flow chart of the filter making method of an execution mode.

Embodiment

For the ease of understanding the present invention, the below is described more fully the present invention with reference to relevant drawings.Provided better embodiment of the present invention in the accompanying drawing.But the present invention can realize with many different forms, be not limited to execution mode described herein.On the contrary, provide the purpose of these execution modes be make to disclosure of the present invention understand more comprehensively thorough.

Need to prove, when element is called as " being fixed in " another element, can directly can there be element placed in the middle in it on another element or also.When an element is considered to " connection " another element, it can be to be directly connected to another element or may to have simultaneously centering elements.Term as used herein " vertical ", " level ", " left side ", " right side " and similar statement do not represent it is unique execution mode just for illustrative purposes.

Unless otherwise defined, the employed all technology of this paper are identical with the implication that belongs to the common understanding of those skilled in the art of the present invention with scientific terminology.Employed term is not intended to be restriction the present invention just in order to describe the purpose of concrete execution mode in specification of the present invention herein.Term as used herein " and/or " comprise one or more relevant Listed Items arbitrarily with all combinations.

See also Fig. 1, the cell-phone camera module 100 of present embodiment comprises support 110, photographing module 120 and filter 130.Filter 130 is installed in the support 110, and photographing module 120 is located on the support 110.

Please consult simultaneously Fig. 2 and Fig. 3, support 110 surfaces offer accepting groove 111.Accepting groove 111 comprises bottom platform 111a and sidewall 111b.The sidewall 111b of accepting groove 111 scribbles the first glue-line 113.The surface of support 110 scribbles the second glue-line 115.The central authorities of the bottom platform 111a of accepting groove 111 offer light hole 117.Light can enter from light hole 117.Support 110 is rectangle.The shape of the shape of accepting groove 111 and filter 130 is complementary.Specifically in the present embodiment, the drift angle place of accepting groove 111 also offers arc groove 111c.Accepting groove 111 is square.Four drift angle places of accepting groove 111 also offer four arc groove 111c.

Photographing module 120 comprises voice coil motor 121 and camera lens 123.It is flexible that voice coil motor 121 drives camera lens 123, to regulate imaging effect.Photographing module 120 is located on the surface of support 110, is covered on the accepting groove 111.The optical axis of photographing module 120 is by the center of light hole 117.Photographing module 120 is bonding by the second glue-line 115 with support 110.Light passes light hole 117 and enters camera module 120.

Filter 130 is formed with at least one scarf 131 along the edge.Filter 130 comprises first surface 133 and the second surface 135 relative with first surface 133.Second surface 135 is incidence surface.Scarf 131 is formed with angle with first surface 133.The size of angle can be arbitrary value in 30 °～60 °.When angle was 30 °, then shape was the gap of 60 ° of sizes at an angle between the sidewall of scarf 131 and accepting groove 111.When angle was 60 °, then shape was the gap of 30 ° of sizes at an angle between the sidewall of scarf 131 and accepting groove 111.Scarf 131 makes the first surface 133 of filter 130 and second surface 135 formation vary in size two shapes that shape is similar.Specifically in the present embodiment, filter 130 is rectangle filter 130, and filter 130 is provided with four scarves 131.Scarf 131 is isosceles trapezoid.Scarf 131 equates with the angle of first surface 133.The size of angle is 45 °.

Filter 130 is contained in the accepting groove 111, and covers light hole 117 tops.Filter 130 connects with the bottom platform 111a of accepting groove 111, and the bottom of accepting groove 111 is because the shape of accepting groove 111 and the shape of filter 130 are complementary, and the space that then exists between the sidewall 111b of the periphery of filter 130 and accepting groove 111 is very little.Filter 130 and the first glue-line 113 are bonding.And form gap 119 between the scarf 131 of filter 130 and the sidewall 111b.

Because scarf 131 has certain angle, then the cross section in gap 119 is triangle, and therefore, compared to the filter that does not have scarf, the space between filter 130 and the accepting groove 111 sidewall 111b is larger.The excessive glue of the first glue-line 113 can be accommodated in gap 119.And the arc groove 111c at the drift angle place of accepting groove 111 also can accommodate excessive glue, namely increases the space of accommodating the glue that overflows.Can prevent the glue spill-over of the first glue-line 113 to above the filter 130, thereby impact affects the image effect of cell-phone camera module 100 by the light path of the light of filter 130.

Be appreciated that filter 130 can be infrared fileter or smalt filter.

And, when photographing module 120 and support 110 carry out bonding the time, because extruding the second glue-line 115, the second glue-lines 115 also the spill-over phenomenon can occur.Because be formed with gap 119 between filter 130 and the sidewall 111b, then the excessive glue part of the second glue-line 115 can outwards flow out, a part can flow in the gap 119.Equally, can prevent the glue spill-over of the second glue-line 115 to above the filter 130, thereby affect the light path of light, affect the image effect of photographing module 120.

Simultaneously, the edge of filter 130 is scarf 131, and compared to traditional filter 130, the contact area of filter 130 and the first glue-line 113 increases, and can strengthen the fastness of filter 130.

Scarf 131 is 45 ° with the angle of the first surface 133 of filter 130, makes the larger space of formation between the sidewall 111b of scarf 131 and accepting groove 111.The glue that overflows can either be accommodated preferably, bonding with the first glue-line 113 that filter 130 can be more firm can be made again.

Be appreciated that filter 130 can also be other shapes, for example circular or oval.Can also be as trapezoidal or annular surface take scarf 131.Then filter 130 is applicable to multiple different photographing module 120.

See also Fig. 4, the manufacture method 200 of filter may further comprise the steps:

Step S210, filter are fixed on the workbench of cutting machine.Filter can be clamped on the workbench of cutting machine.

Step S220, delivery port is aimed at filter, current flushing filter.

Step S230, the edge of blade cuts filter forms angle between the surface of blade and filter.

The size that has angle between the surface of blade and filter can be arbitrary value in 30 °～60 °.Have the size of angle between blade and the second surface can be for 30 ° the time, the scarf of the filter that makes and the angle of first surface are 30 °.Have the size of angle between blade and the second surface can be for 60 ° the time, the scarf of the filter that makes and the angle of first surface are 60 °.Specifically in the present embodiment, the first surface of blade and filter keeps the equal and opposite in direction of angle.The size that has angle between the second surface of blade and filter is 45 °, and the angle of the scarf of the filter that then makes and the second surface of filter is 45 °.The angle on the surface of blade and filter is 45 °, in cutting process, and handled easily.

Because a large amount of chips that scarf causes when cutting, and these chips utilize Ultrasonic Cleaning to be not easy by wash clean.In the manufacturing process at filter, wash while cut, then chip can be easy to clean up.Therefore, can be owing to the imaging effect of these debris influence camera modules, thus improved the yield of camera module.

The filter that utilizes said method to make is installed in the cell-phone camera module, can prevents the glue spill-over of the first glue-line above filter, thereby affect the light path of light, affect the image effect of cell-phone camera module.

The above embodiment has only expressed several execution mode of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection range of patent of the present invention should be as the criterion with claims.

Claims (10)

1. a filter is installed in the cell-phone camera module, it is characterized in that, described filter forms at least one scarf along the edge, is formed with angle between the surface of described scarf and described filter.

2. filter according to claim 1, it is characterized in that, described filter comprises first surface and the second surface relative with described first surface, described second surface is incidence surface, described scarf is a plurality of, and the equal and opposite in direction of the angle between a plurality of described scarf and the described first surface.

3. filter according to claim 2 is characterized in that, the size of described angle is the arbitrary value between 30 °～60 °.

4. filter according to claim 2 is characterized in that, the size of described angle is 45 °.

5. filter according to claim 1 is characterized in that, described filter is square, circular or oval filter.

6. filter according to claim 1 is characterized in that, described scarf is trapezoidal, isosceles trapezoid or annular surface.

7. filter according to claim 1 is characterized in that, described filter is infrared fileter or smalt filter.

8. a cell-phone camera module is characterized in that, comprising:

Support, the surface offers accepting groove, and the bottom center of described accepting groove offers light hole, and the sidewall of described accepting groove scribbles the first glue-line;

Photographing module is located at the upper of described support, and is covered on the described accepting groove, and the optical axis of described photographing module is by the center of described light hole; And

Such as the described filter of claim 1～7 any one, described filter is contained in the described accepting groove, and cover described light hole top, described filter and described the first glue-line are bonding, and form the gap between the sidewall of the scarf of described filter and described accepting groove;

Wherein, the excessive glue of described the first glue-line can be accommodated in described gap.

9. cell-phone camera module according to claim 8 is characterized in that, described accepting groove is square, and the drift angle place of described accepting groove offers arc groove.

10. the manufacture method of a filter may further comprise the steps:

Filter is fixed on the cutting position of cutting machine;

Delivery port is aimed at filter, current flushing filter;

The edge of blade cuts filter forms angle between the surface of blade and filter.

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