CN201926810U

CN201926810U - Optic photographic lens set

Info

Publication number: CN201926810U
Application number: CN2010206770178U
Authority: CN
Inventors: 黄歆璇
Original assignee: Largan Precision Co Ltd
Current assignee: Largan Precision Co Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2011-08-10
Anticipated expiration: 2020-12-15

Abstract

The utility model provides an optic photographic lens set, which comprises a first lens, a second lens, a third lens and a fourth lens from object side to image side in sequence. The first lens with a convex object side surface has positive flexion power, the second lens has negative flexion power, the third lens with a concave object side surface and a convex image side surface has positive flexion power, the fourth lens with a concave object side surface has negative flexion power, and at least one of the object side surface and the image side surface of the fourth lens is an aspherical surface. The optic photographic lens set comprises four lenses having flexion power. By means of the arrangement mode of the optic photographic lens set, aberration of integral optic photographic lens set can be effectively corrected, sensitivity of integral optic photographic lens set can be reduced, and higher image resolution can be obtained.

Description

The optical photography lens combination

Technical field

The utility model relates to a kind of optical photography lens combination, and particularly relevant for a kind of miniaturization optical photography lens combination that is applied on the electronic product.

Background technology

In recent years, along with the rise of the portable electronic product with camera function, the demand of miniaturization pick-up lens day by day improves.And the photosensory assembly of general pick-up lens is nothing more than being photosensitive coupling component (ChargeCoupled Device, CCD) or two kinds of complementary matal-oxide semiconductor assemblies (ComplementaryMetal-Oxide Semiconductor Sensor, CMOS Sensor).And because progressing greatly of technology makes the Pixel Dimensions of photosensory assembly dwindle, the miniaturization pick-up lens develops toward high pixel field gradually, therefore, and to the also increase day by day of requirement of image quality.

Tradition is equipped on the miniaturization pick-up lens on the portable electronic product, many employing three-chip type lens arrangements are main, lens combination is born second lens of refracting power and the 3rd lens of the positive refracting power of a tool by thing side to first lens, the tool that as side are the positive refracting power of a tool in regular turn, as United States Patent (USP) the 7th, shown in 145, No. 736.

But because the progress of technology and electronic product are under the trend of lightening development, the photosensory assembly Pixel Dimensions constantly dwindles, the system that makes improves more to the requirement of image quality, and known three-chip type lens combination can't satisfy the more camera lens module of high-order.In addition, United States Patent (USP) the 7th, 365 has disclosed a kind of four-piece type lens combination No. 920, and wherein first lens and second lens are bonded to each other and become Doublet (doublet) with two sheet glass spherical mirrors, in order to color difference eliminating.But the method has its shortcoming, one, and too much glass spherical mirror configuration makes and the degree of freedom in system deficiency causes the total length of system to be difficult for shortening; Its two, the bonding technology of glass mirror is difficult for, and forms the difficulty on making easily.

The utility model content

The purpose of this utility model is to provide a kind of optical photography lens combination, overcomes the defective of prior art.

Provide an optical photography lens combination extremely to comprise one first lens, one second lens, one the 3rd lens and one the 4th lens in regular turn according to the utility model as side by the thing side.First lens have positive refracting power, and its thing side surface is a convex surface.Second lens have negative refracting power.The 3rd lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side surface, and its thing side surface with as having at least one to be aspheric surface in the side surface.The 4th lens have negative refracting power, and its thing side surface is a concave surface, and its thing side surface with as having one in the side surface at least for aspheric surface.Wherein, the lens of tool refracting power are four in the optical photography lens combination, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of optical photography lens combination is f, the focal length of first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of second lens is R3, be R4 as the side surface radius-of-curvature, and the optical photography lens combination comprises an aperture, the distance of aperture to an imaging surface on optical axis is SL, the thing side surface of first lens to the distance of imaging surface on optical axis is TTL, satisfies the following relationship formula:

-0.5＜R7/f＜0；

0.5＜f1/f3＜1.05；

-5.0＜(R3+R4)/(R3-R4)＜0; And

0.77＜SL/TTL＜1.1。

According to an embodiment of the present utility model, the wherein thing side surface of the 4th lens and be all aspheric surface, and this thing side surface and this is as having at least a surface to be provided with at least one point of inflexion in the side surface as side surface.

According to an embodiment of the present utility model, wherein the thing side surface of these second lens with as having one in the side surface at least for aspheric surface, and the 4th lens are plastic material.

According to an embodiment of the present utility model, wherein the focal length of this optical photography lens combination is f, and the focal length of these first lens is f1, and satisfies the following relationship formula:

1.3＜f/f1＜2.2。

According to an embodiment of the present utility model, wherein the thing side surface radius-of-curvature of these first lens is R1, is R2 as the side surface radius-of-curvature, and satisfies the following relationship formula:

0＜|R1/R2|＜0.55。

According to an embodiment of the present utility model, wherein the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and satisfies the following relationship formula:

-2.5＜f/f4＜-1.5。

According to an embodiment of the present utility model, wherein the thing side surface radius-of-curvature of the 3rd lens is R5, is R6 as the side surface radius-of-curvature, and satisfies the following relationship formula:

1.1＜(R5+R6)/(R5-R6)＜5.0。

According to an embodiment of the present utility model, wherein the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and satisfies the following relationship formula:

-0.4＜R7/f＜-0.17。

According to an embodiment of the present utility model, wherein the abbe number of these first lens is V1, and the abbe number V2 of these second lens, and satisfies the following relationship formula:

29＜V1-V2＜42。

According to an embodiment of the present utility model, wherein this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of these first lens to the distance of this imaging surface on optical axis be TTL, and satisfies the following relationship formula:

0.92＜SL/TTL＜1.1。

According to an embodiment of the present utility model, wherein the thing side surface radius-of-curvature of these second lens is R3, is R4 as the side surface radius-of-curvature, and it satisfies the following relationship formula:

-3.3＜(R3+R4)/(R3-R4)＜-0.7。

According to an embodiment of the present utility model, wherein the focal length of these first lens is f1, and the focal length of the 3rd lens is f3, and satisfies the following relationship formula:

0.7＜f1/f3＜1.0。

According to an embodiment of the present utility model, wherein the thing side surface of these second lens with as having at least a surface to be provided with at least one point of inflexion in the side surface.

According to an embodiment of the present utility model, wherein the focal length of this optical photography lens combination is f, and the focal length of these second lens is f2, and satisfies the following relationship formula:

-0.75＜f/f2＜-0.4。

0＜|R1/R2|＜0.35。

According to an embodiment of the present utility model, wherein the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, this optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and satisfies the following relationship formula:

TTL/ImgH＜1.95。

On the other hand, provide optics shooting mirror group, extremely comprise one first lens, one second lens, one the 3rd lens and one the 4th lens in regular turn as side by the thing side according to the utility model.First lens have positive refracting power, and its thing side surface is a convex surface.Second lens have negative refracting power, and its thing side surface is a concave surface.The 3rd lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side surface.The 4th lens have negative refracting power, and its thing side surface is concave surface, be convex surface as side surface, and its thing side surface and be all aspheric surface as side surface.Wherein, the lens of tool refracting power are four in the optical photography lens combination, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of optical photography lens combination is f, the focal length of first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of the 3rd lens is R5, be R6 as the side surface radius-of-curvature, and the optical photography lens combination comprises an aperture, the distance of aperture to an imaging surface on optical axis is SL, the thing side surface of first lens to the distance of this imaging surface on optical axis is TTL, satisfies the following relationship formula:

-1.0＜R7/f＜0；

0.5＜f1/f3＜1.05；

1.1＜(R5+R6)/(R5-R6)＜5; And

0.77＜SL/TTL＜1.1。

According to another embodiment of the present utility model, wherein the 3rd lens and the 4th lens are all plastic material, and the thing side surface of the 4th lens with as having at least a surface to be provided with at least one point of inflexion in the side surface.

According to another embodiment of the present utility model, wherein the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and satisfies the following relationship formula:

-2.5＜f/f4＜-1.5。

According to another embodiment of the present utility model, wherein the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and satisfies the following relationship formula:

-0.4＜R7/f＜-0.17。

According to another embodiment of the present utility model, wherein the thing side surface of these second lens with as having at least a surface to be provided with at least one point of inflexion in the side surface, and the thing side surface radius-of-curvature of these second lens is R3, be R4 as the side surface radius-of-curvature, it satisfies the following relationship formula:

-3.3＜(R3+R4)/(R3-R4)＜-0.7。

According to another embodiment of the present utility model, wherein this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of these first lens to the distance of this imaging surface on optical axis be TTL, and satisfies the following relationship formula:

0.92＜SL/TTL＜1.1。

According to another embodiment of the present utility model, wherein the focal length of these first lens is f1, and the focal length of the 3rd lens is f3, and satisfies the following relationship formula:

0.7＜f1/f3＜1.0。

Wherein, first lens have positive refracting power, provide the optical photography lens combination required part refracting power, help to shorten the total length of optical photography lens combination.Second lens have negative refracting power, but the aberration that revisal first lens are produced, and the aberration of correction optical photography lens combination integral body.The positive refracting power of the 3rd lens tool can distribute the refracting power of first lens, reduces the susceptibility of optical photography lens combination.The 4th lens tool is born refracting power, and the principal point (Principle Point) that can make the optical photography lens combination helps shortening the optics total length of optical photography lens combination away from imaging surface, to promote the miniaturization of camera lens.

When R7/f satisfied the above-mentioned relation formula, the curvature of the 4th lens can make the making of lens more or less freely with assembling, and can assist to revise the higher order aberratons of optical photography lens combination.

When f1/f3 satisfies the above-mentioned relation formula, can effectively distribute the positive refracting power of first lens, reduce the susceptibility of optical photography lens combination.

When (R3+R4)/(R3-R4) satisfies the above-mentioned relation formula, but the aberration that revisal first lens are produced, and be unlikely to make the refracting power of second lens excessive, can avoid producing too much higher order aberratons.

When SL/TTL satisfies the above-mentioned relation formula, promptly help the optical photography lens combination and in heart characteristic far away, obtain good effect.

When (R5+R6)/(R5-R6) satisfied the above-mentioned relation formula, the curvature of the 3rd lens can further strengthen revising the astigmatism of optical photography lens combination.

Therefore, the optical photography lens combination that the utility model provides can effectively be revised whole aberration, desensitising, more can obtain higher resolving power.

Description of drawings

For above-mentioned and other purpose of the present utility model, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:

Fig. 1 is the synoptic diagram that illustrates according to a kind of optical photography lens combination of the utility model embodiment 1;

Fig. 2 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 1 from left to right in regular turn and distorts curve map;

Fig. 3 is the synoptic diagram that illustrates according to a kind of optical photography lens combination of the utility model embodiment 2;

Fig. 4 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 2 from left to right in regular turn and distorts curve map;

Fig. 5 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 3;

Fig. 6 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 3 from left to right in regular turn and distorts curve map;

Fig. 7 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 4;

Fig. 8 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 4 from left to right in regular turn and distorts curve map;

Fig. 9 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 5;

Figure 10 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 5 from left to right in regular turn and distorts curve map;

Figure 11 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 6;

Figure 12 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 6 from left to right in regular turn and distorts curve map.

[primary clustering symbol description]

Aperture: 100,200,300,400,500,600

First lens: 110,210,310,410,510,610

Thing side surface: 111,211,311,411,511,611

Picture side surface: 112,212,312,412,512,612

Second lens: 120,220,320,420,520,620

Thing side surface: 121,221,321,421,521,621

Picture side surface: 122,222,322,422,522,622

The 3rd lens: 130,230,330,430,530,630

Thing side surface: 131,231,331,431,531,631

Picture side surface: 132,232,332,432,532,632

The 4th lens: 140,240,340,440,540,640

Thing side surface: 141,241,341,441,541,641

Picture side surface: 142,242,342,442,542,642

Imaging surface: 150,250,350,450,550,650

Infrared ray filtering optical filter: 160,260,360,460,560,660

F: the focal length of whole optical photography lens combination

F1: the focal length of first lens

F2: the focal length of second lens

F3: the focal length of the 3rd lens

F4: the focal length of the 4th lens

V1: the abbe number of first lens

V2: the abbe number of second lens

R1: the thing side surface radius-of-curvature of first lens

R2: the picture side surface radius-of-curvature of first lens

R3: the thing side surface radius-of-curvature of second lens

R4: the picture side surface radius-of-curvature of second lens

R5: the thing side surface radius-of-curvature of the 3rd lens

R6: the picture side surface radius-of-curvature of the 3rd lens

R7: the thing side surface radius-of-curvature of the 4th lens

SL: aperture is to the distance of imaging surface on optical axis

TTL: the thing side surface of first lens is to the distance of imaging surface on optical axis

ImgH: half of sense electronics optical assembly effective pixel area diagonal angle line length

Embodiment

The utility model provides a kind of optical photography lens combination, is arranged to comprising first lens, second lens, the 3rd lens and the 4th lens as side by the thing side in regular turn, and other is provided with a sense electronics optical assembly in imaging surface.

First lens have positive refracting power, and optical photography lens combination part refracting power can be provided, and help to shorten the total length of this optical photography lens combination.The thing side surface of first lens and can be all convex surface as side surface, or the thing side surface is convex surface, is the crescent lens of concave surface as side surface.When being all convex surface, can strengthen the configuration of the first lens refracting power, the total length of optical photography lens combination is shortened when the thing side surface of first lens and as side surface; And when first lens are above-mentioned crescent lens, help to revise the spherical aberration of optical photography lens combination.

Second lens have negative refracting power, but the aberration that first lens of the positive refracting power of revisal tool are produced, and help revising the aberration of optical photography lens combination simultaneously.The thing side surface of second lens and can be all concave surface as side surface, or the thing side surface is concave surface, is convex surface as side surface.When being all concave surface when the second lens thing side surface and as side surface, the Po Zi that can revise the optical photography lens combination cuts down and (Petzval Sum), and can increase the back focal length of optical photography lens combination, guarantee that the optical photography lens combination has enough back focal length can place other member; And be concave surface, when being convex surface, help the revisal of optical photography lens combination aberration when the second lens thing side surface, and the correction of optical photography lens combination astigmatism as side surface.In addition, the thing side surface of second lens with as having at least a surface can be provided with at least one point of inflexion in the side surface.

The 3rd lens have positive refracting power, can distribute the refracting power of first lens, reduce the susceptibility of optical photography lens combination.The thing side surface of the 3rd lens is concave surface, be convex surface as side surface, be beneficial to the correction of optical photography lens combination astigmatism whereby.

The 4th lens have negative refracting power, and the principal point (Principle Point) that can make the optical photography lens combination helps shortening the optics total length of optical photography lens combination away from imaging surface, to promote the miniaturization of camera lens.Other the 4th lens thing side surface with as having at least a surface can be provided with at least one point of inflexion in the side surface.

The thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of optical photography lens combination is f, and it satisfies the following relationship formula:

-0.5＜R7/f＜0，

Whereby, the curvature of the 4th lens can make the making of lens more or less freely with assembling, and can assist to revise optical photography lens combination higher order aberratons.

In addition, the optical photography lens combination can further satisfy the following relationship formula:

-1.0＜R7/f＜0。

Moreover the optical photography lens combination more can further satisfy the following relationship formula:

-0.4＜R7/f＜-0.17。

The focal length of first lens is f1, and the focal length of the 3rd lens is f3, and it satisfies the following relationship formula:

0.5＜f1/f3＜1.05，

Whereby, can effectively distribute the positive refracting power of first lens, to reduce the susceptibility of optical photography lens combination.

0.7＜f1/f3＜1.0。

The thing side surface radius-of-curvature of second lens is R3, be R4 as the side surface radius-of-curvature, it satisfies the following relationship formula:

-5.0＜(R3+R4)/(R3-R4)＜0，

Whereby, but the aberration that revisal first lens are produced, and be unlikely to make the refracting power of second lens excessive, avoid producing too much higher order aberratons.

-3.3＜(R3+R4)/(R3-R4)＜-0.7。

The optical photography lens combination comprises an aperture, and aperture is SL to the distance of imaging surface on optical axis, and the thing side surface of first lens to the distance of imaging surface on optical axis is TTL, satisfies the following relationship formula:

0.77＜SL/TTL＜1.1，

When SL/TTL less than 0.77 the time, the light angle that is incident on the sense electronics optical assembly is excessive, easily cause photosensitive effect bad with the excessive shortcoming of aberration.Again when SL/TTL greater than 1.1 the time, can make whole optical photography lens combination total length long.Therefore, this optical photography lens combination can obtain the advantage of heart characteristic far away and be unlikely to make whole total length long satisfied 0.77＜SL/TTL＜1.1 o'clock.

0.92＜SL/TTL＜1.1。

The thing side surface radius-of-curvature of the 3rd lens is R5, be R6 as the side surface radius-of-curvature, and satisfy the following relationship formula:

1.1＜(R5+R6)/(R5-R6)＜5，

Whereby, the curvature of the 3rd lens can further strengthen revising the astigmatism of optical photography lens combination.

The focal length of optical photography lens combination is f, and the focal length of first lens is f1, and satisfies the following relationship formula:

1.3＜f/f1＜2.2，

Whereby, the refracting power size configure of first lens is balance comparatively, can effectively control the optics total length of optical photography lens combination, and can avoid the high-order spherical aberration simultaneously.

The thing side surface radius-of-curvature of first lens is R1, be R2 as the side surface radius-of-curvature, it satisfies the following relationship formula:

0＜|R1/R2|＜0.55，

Whereby, help the revisal that sphere is received poor (Spherical Aberration), and first lens there is effect to the total length cripetura of camera lens, so also very effective to the miniaturization of camera lens.

0＜|R1/R2|＜0.35。

The focal length of optical photography lens combination is f, and the focal length of the 4th lens is f4, and it satisfies the following relationship formula:

-2.5＜f/f4＜-1.5，

Whereby, the principal point that can make the optical photography lens combination helps shortening the total length of optical photography lens combination away from imaging surface, to promote the miniaturization of camera lens.

The abbe number of first lens is V1, the abbe number V2 of second lens, and it satisfies the following relationship formula:

29＜V1-V2＜42，

Whereby, can revise the aberration of optical photography lens combination.

The focal length of optical photography lens combination is f, and the focal length of second lens is f2, and it satisfies the following relationship formula:

-0.75＜f/f2＜-0.4，

The refracting power of second lens can be revised the aberration of first lens and the aberration of revising the optical photography lens combination whereby.

The thing side surface of first lens is TTL to the distance of imaging surface on optical axis, and half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and satisfies the following relationship formula:

TTL/ImgH＜1.95，

Whereby, can keep the miniaturization of optical photography lens combination, to be equipped on the frivolous portable electronic product.In the utility model optical photography lens combination, the material of lens can be glass or plastics, if the material of lens is a glass, then can increase the degree of freedom of this optical photography lens combination refracting power configuration, if the lens material is plastics, then can effectively reduce production costs.In addition, aspheric surface can be set on minute surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more control variable, in order to subduing aberration, and then the number that uses of reduction lens, therefore can effectively reduce the total length of the utility model optical photography lens combination.

In the utility model optical photography lens combination,, represent that then this lens surface is a convex surface in paraxial place if lens surface is a convex surface; If lens surface is a concave surface, represent that then this lens surface is a concave surface in paraxial place.

In the utility model optical photography lens combination, a smooth hurdle can be set at least, help to promote the quality of image to reduce parasitic light.

According to above-mentioned embodiment, below propose specific embodiment and conjunction with figs. and described in detail.

Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 1, and Fig. 2 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 1 from left to right in regular turn and distorts curve map.As shown in Figure 1, the optical photography lens combination of embodiment 1 extremely comprises aperture 100, first lens 110, second lens 120, the 3rd lens 130, the 4th lens 140, infrared ray filtering optical filter 160 and imaging surface 150 as side in regular turn by the thing side.

The material of first lens 110 is plastics, and it has positive refracting power, the thing side surface 111 of first lens 110 and be all convex surface as side surface 112, and its thing side surface 111 and be all aspheric surface (Aspheric as side surface 112; Asp).

The material of second lens 120 is plastics, and it has negative refracting power, and the thing side surface 121 of second lens 120 is concave surface, is convex surface as side surface 122, and its thing side surface 121 and be all aspheric surface as side surface 122.

The material of the 3rd lens 130 is plastics, and it has positive refracting power, and the thing side surface 131 of the 3rd lens 130 is concave surface, is convex surface as side surface 132, and its thing side surface 131 and be all aspheric surface as side surface 132.

The material of the 4th lens 140 is plastics, and it has negative refracting power, and the thing side surface 141 of the 4th lens 140 is concave surface, is convex surface as side surface 142, and its thing side surface 141 and be all aspheric surface as side surface 142.

Infrared ray filtering optical filter 160 is arranged at 150 of the 4th lens 140 and imaging surfaces, does not influence the focal length of optical photography lens combination.

The aspheric curvilinear equation formula of above-mentioned each lens is expressed as follows:

X (Y) = (Y^{2} / R) / (1 + sqrt (1 - (1 + k) \times {(Y / R)}^{2})) + \underset{i}{Σ} (Ai) \times (Y^{i})

Wherein:

X: be the point of Y apart from optical axis on the aspheric surface, itself and the relative height that is tangential on the tangent plane on summit on the aspheric surface optical axis;

Y: the point on the aspheric curve and the distance of optical axis;

K: conical surface coefficient; And

Ai: i rank asphericity coefficient.

In the optical photography lens combination of embodiment 1, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.52mm；

Fno＝2.77；

The HFOV=32.1 degree.

In the optical photography lens combination of embodiment 1, the abbe number of first lens 110 (Abbe number) is V1, and the abbe number of second lens 120 is V2, and its pass is:

V1-V2＝32.1。

In the optical photography lens combination of embodiment 1, thing side surface 111 radius-of-curvature of first lens 110 are R1, be R2 as side surface 112 radius-of-curvature, thing side surface 121 radius-of-curvature of second lens 120 are R3, be R4 as side surface 122 radius-of-curvature, thing side surface 131 radius-of-curvature of the 3rd lens 130 are R5, be R6 as side surface 132 radius-of-curvature, its pass is:

|R1/R2|＝0.21；

(R3+R4)/(R3-R4)=-3.17; And

(R5+R6)/(R5-R6)＝2.07。

In the optical photography lens combination of embodiment 1, thing side surface 141 radius-of-curvature of the 4th lens 140 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.27。

In the optical photography lens combination of embodiment 1, the focal length of optical photography lens combination is f, and the focal length of first lens 110 is f1, and the focal length of second lens 120 is f2, and the focal length of the 3rd lens 130 is f3, and the focal length of the 4th lens 140 is f4, and its pass is:

f/f1＝1.73；

f/f2＝-0.69；

F/f4=-1.94; And

f1/f3＝0.82。

In the optical photography lens combination of embodiment 1, aperture 100 to the distance of imaging surface 150 on optical axis is SL, and the thing side surface 111 of first lens 110 is TTL to the distance of imaging surface 150 on optical axis, and its pass is:

SL/TTL＝0.97。

In the optical photography lens combination of embodiment 1, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 150, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 111 to the distance of imaging surface 150 on optical axis of itself and first lens 110 is that the pass of TTL is:

TTL/ImgH＝1.79。

Cooperation is with reference to table one and table two, and wherein table one is the detailed structured data of Fig. 1 embodiment 1, and table two is the aspherical surface data among the embodiment 1.

Table one

Asphericity coefficient

Table two

In the table one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents that in regular turn and in the table two, k represents the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Please refer to Fig. 3 and Fig. 4, wherein Fig. 3 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 2, and Fig. 4 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 2 from left to right in regular turn and distorts curve map.As shown in Figure 3, the optical photography lens combination of embodiment 2 extremely comprises first lens 210, aperture 200, second lens 220, the 3rd lens 230, the 4th lens 240, infrared ray filtering optical filter 260 and imaging surface 250 as side in regular turn by the thing side.

The material of first lens 210 is plastics, and it has positive refracting power, the thing side surface 211 of first lens 210 and be all convex surface as side surface 212, and its thing side surface 211 and be all aspheric surface as side surface 212.

The material of second lens 220 is plastics, and it has negative refracting power, the thing side surface 221 of second lens 220 and be all concave surface as side surface 222, and its thing side surface 221 and be all aspheric surface as side surface 222.

The material of the 3rd lens 230 is plastics, and it has positive refracting power, and the thing side surface 231 of the 3rd lens 230 is concave surface, is convex surface as side surface 232, and its thing side surface 231 and be all aspheric surface as side surface 232.

The material of the 4th lens 240 is plastics, and it has negative refracting power, the thing side surface 241 of the 4th lens 240 and be all concave surface as side surface 242, and its thing side surface 241 and be all aspheric surface as side surface 242.

Infrared ray filtering optical filter 260 is arranged at 250 of the 4th lens 240 and imaging surfaces, does not influence the focal length of optical photography lens combination.

Aspheric curvilinear equation formula is represented the form as embodiment 1 among the embodiment 2, does not add at this and gives unnecessary details.

In the optical photography lens combination of embodiment 2, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.47mm；

Fno＝2.85；

The HFOV=32.3 degree.

In the optical photography lens combination of embodiment 2, the abbe number of first lens 210 (Abbe number) is V1, and the abbe number of second lens 220 is V2, and its pass is:

V1-V2＝32.1。

In the optical photography lens combination of embodiment 2, thing side surface 211 radius-of-curvature of first lens 210 are R1, be R2 as side surface 212 radius-of-curvature, thing side surface 221 radius-of-curvature of second lens 220 are R3, be R4 as side surface 222 radius-of-curvature, thing side surface 231 radius-of-curvature of the 3rd lens 230 are R5, be R6 as side surface 232 radius-of-curvature, its pass is:

|R1/R2|＝0.25；

(R3+R4)/(R3-R4)=-0.96; And

(R5+R6)/(R5-R6)＝2.47。

In the optical photography lens combination of embodiment 2, thing side surface 241 radius-of-curvature of the 4th lens 240 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.41。

In the optical photography lens combination of embodiment 2, the focal length of optical photography lens combination is f, and the focal length of first lens 210 is f1, and the focal length of second lens 220 is f2, and the focal length of the 3rd lens 230 is f3, and the focal length of the 4th lens 240 is f4, and its pass is:

f/f1＝1.80；

f/f2＝-0.91；

F/f4=-1.99; And

f1/f3＝0.80。

In the optical photography lens combination of embodiment 2, aperture 200 to the distance of imaging surface 250 on optical axis is SL, and the thing side surface 211 of first lens 210 is TTL to the distance of imaging surface 250 on optical axis, and its pass is:

SL/TTL＝0.88。

In the optical photography lens combination of embodiment 2, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 250, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 211 to the distance of imaging surface 250 on optical axis of itself and first lens 210 is that the pass of TTL is:

TTL/ImgH＝1.79。

Cooperation is with reference to table three and table four, and wherein table three is the detailed structured data of Fig. 3 embodiment 2, and table four is the aspherical surface data among the embodiment 2.

Table three

Asphericity coefficient

Table four

In the table three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents that in regular turn and in the table four, k represents the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Please refer to Fig. 5 and Fig. 6, wherein Fig. 5 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 3, and Fig. 6 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 3 from left to right in regular turn and distorts curve map.As shown in Figure 5, the optical photography lens combination of embodiment 3 extremely comprises aperture 300, first lens 310, second lens 320, the 3rd lens 330, the 4th lens 340, infrared ray filtering optical filter 360 and imaging surface 350 as side in regular turn by the thing side.

The material of first lens 310 is plastics, and it has positive refracting power.The thing side surface 311 of first lens 310 and be all convex surface, and its thing side surface 311 and be all aspheric surface as side surface 312 as side surface 312.

The material of second lens 320 is plastics, and it has negative refracting power.The thing side surface 321 of second lens 320 is concave surface, is convex surface as side surface 322, and its thing side surface 321 and be all aspheric surface as side surface 322.

The material of the 3rd lens 330 is plastics, and it has positive refracting power.The thing side surface 331 of the 3rd lens 330 is concave surface, is convex surface as side surface 332, and its thing side surface 331 and be all aspheric surface as side surface 332.

The material of the 4th lens 340 is plastics, and it has negative refracting power.The thing side surface 341 of the 4th lens 340 and be all concave surface, and its thing side surface 341 and be all aspheric surface as side surface 342 as side surface 342.

Infrared ray filtering optical filter 360 is arranged at 350 of the 4th lens 340 and imaging surfaces, does not influence the focal length of optical photography lens combination.

Aspheric curvilinear equation formula is represented the form as embodiment 1 among the embodiment 3, does not add at this and gives unnecessary details.

In the optical photography lens combination of embodiment 3, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.28mm；

Fno＝2.80；

The HFOV=32.3 degree.

In the optical photography lens combination of embodiment 3, the abbe number of first lens 310 (Abbe number) is V1, and the abbe number of second lens 320 is V2, and its pass is:

V1-V2＝32.5。

In the optical photography lens combination of embodiment 3, thing side surface 311 radius-of-curvature of first lens 310 are R1, be R2 as side surface 312 radius-of-curvature, thing side surface 321 radius-of-curvature of second lens 320 are R3, be R4 as side surface 322 radius-of-curvature, thing side surface 331 radius-of-curvature of the 3rd lens 330 are R5, be R6 as side surface 332 radius-of-curvature, its pass is:

|R1/R2|＝0.28；

(R3+R4)/(R3-R4)=-4.02; And

(R5+R6)/(R5-R6)＝2.09。

In the optical photography lens combination of embodiment 3, thing side surface 341 radius-of-curvature of the 4th lens 340 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.37。

In the optical photography lens combination of embodiment 3, the focal length of optical photography lens combination is f, and the focal length of first lens 310 is f1, and the focal length of second lens 320 is f2, and the focal length of the 3rd lens 330 is f3, and the focal length of the 4th lens 340 is f4, and its pass is:

f/f1＝1.63；

f/f2＝-0.57；

F/f4=-2.09; And

f1/f3＝0.99。

In the optical photography lens combination of embodiment 3, aperture 300 to the distance of imaging surface 350 on optical axis is SL, and the thing side surface 311 of first lens 310 is TTL to the distance of imaging surface 350 on optical axis, and its pass is:

SL/TTL＝0.97。

In the optical photography lens combination of embodiment 3, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 350, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 311 to the distance of imaging surface 350 on optical axis of itself and first lens 310 is that the pass of TTL is:

TTL/ImgH＝1.81。

Cooperation is with reference to table five and table six, and wherein table five is the detailed structured data of Fig. 5 embodiment 3, and table six is the aspherical surface data among the embodiment 3.

Table five

Asphericity coefficient

Table six

In the table five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents that in regular turn and in the table six, k represents the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 4, and Fig. 8 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 4 from left to right in regular turn and distorts curve map.As shown in Figure 7, the optical photography lens combination of embodiment 4 extremely comprises first lens 410, aperture 400, second lens 420, the 3rd lens 430, the 4th lens 440, infrared ray filtering optical filter 460 and imaging surface 450 as side in regular turn by the thing side.

The material of first lens 410 is plastics, and it has positive refracting power.The thing side surface 411 of first lens 410 is for convex surface, be all concave surface as side surface 412, and its thing side surface 411 and be all aspheric surface as side surface 412.

The material of second lens 420 is plastics, and it has negative refracting power.The thing side surface 421 of second lens 420 is concave surface, is convex surface as side surface 422, and its thing side surface 421 and be all aspheric surface as side surface 422.

The material of the 3rd lens 430 is plastics, and it has positive refracting power.The thing side surface 431 of the 3rd lens 430 is concave surface, is convex surface as side surface 432, and its thing side surface 431 and be all aspheric surface as side surface 432.

The material of the 4th lens 440 is plastics, and it has negative refracting power.The thing side surface 441 of the 4th lens 440 is concave surface, is convex surface as side surface 442, and its thing side surface 441 and be all aspheric surface as side surface 442.

Infrared ray filtering optical filter 460 is arranged at 450 of the 4th lens 440 and imaging surfaces, does not influence the focal length of optical photography lens combination.

Aspheric curvilinear equation formula is represented the form as embodiment 1 among the embodiment 4, does not add at this and gives unnecessary details.

In the optical photography lens combination of embodiment 4, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.39mm；

Fno＝2.80；

The HFOV=32.2 degree.

In the optical photography lens combination of embodiment 4, the abbe number of first lens 410 (Abbe number) is V1, and the abbe number of second lens 420 is V2, and its pass is:

V1-V2＝32.5。

In the optical photography lens combination of embodiment 4, thing side surface 411 radius-of-curvature of first lens 410 are R1, be R2 as side surface 412 radius-of-curvature, thing side surface 421 radius-of-curvature of second lens 420 are R3, be R4 as side surface 422 radius-of-curvature, thing side surface 431 radius-of-curvature of the 3rd lens 430 are R5, be R6 as side surface 432 radius-of-curvature, its pass is:

|R1/R2|＝0.06；

(R3+R4)/(R3-R4)=-1.20; And

(R5+R6)/(R5-R6)＝2.33。

In the optical photography lens combination of embodiment 4, thing side surface 441 radius-of-curvature of the 4th lens 440 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.30。

In the optical photography lens combination of embodiment 4, the focal length of optical photography lens combination is f, and the focal length of first lens 410 is f1, and the focal length of second lens 420 is f2, and the focal length of the 3rd lens 430 is f3, and the focal length of the 4th lens 440 is f4, and its pass is:

f/f1＝1.52；

f/f2＝-0.84；

F/f4=-1.68; And

f1/f3＝0.98。

In the optical photography lens combination of embodiment 4, aperture 400 to the distance of imaging surface 450 on optical axis is SL, and the thing side surface 411 of first lens 410 is TTL to the distance of imaging surface 450 on optical axis, and its pass is:

SL/TTL＝0.85。

In the optical photography lens combination of embodiment 4, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 450, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 411 to the distance of imaging surface 450 on optical axis of itself and first lens 410 is that the pass of TTL is:

TTL/ImgH＝1.81。

Cooperation is with reference to table seven and table eight, and wherein table seven is the detailed structured data of Fig. 7 embodiment 4, and table eight is the aspherical surface data among the embodiment 4.

Table seven

Asphericity coefficient

Table eight

In the table seven, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents that in regular turn and in the table eight, k represents the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Please refer to Fig. 9 and Figure 10, wherein Fig. 9 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 5, and Figure 10 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 5 from left to right in regular turn and distorts curve map.As shown in Figure 9, the optical photography lens combination of embodiment 5 extremely comprises aperture 500, first lens 510, second lens 520, the 3rd lens 530, the 4th lens 540, infrared ray filtering optical filter 560 and imaging surface 550 as side in regular turn by the thing side.

The material of first lens 510 is plastics, and it has positive refracting power.The thing side surface 511 of first lens 510 and be all convex surface, and its thing side surface 511 and be all aspheric surface as side surface 512 as side surface 512.

The material of second lens 520 is plastics, and it has negative refracting power.The thing side surface 521 of second lens 520 is concave surface, is convex surface as side surface 522, and its thing side surface 521 and be all aspheric surface as side surface 522.

The material of the 3rd lens 530 is plastics, and it has positive refracting power.The thing side surface 531 of the 3rd lens 530 is concave surface, is convex surface as side surface 532, and its thing side surface 531 and be all aspheric surface as side surface 532.

The material of the 4th lens 540 is plastics, and it has negative refracting power.The thing side surface 541 of the 4th lens 540 is concave surface, is convex surface as side surface 542, and its thing side surface 541 and be all aspheric surface as side surface 542.

Infrared ray filtering optical filter 560 is arranged at 550 of the 4th lens 540 and imaging surfaces, does not influence the focal length of optical photography lens combination.

Aspheric curvilinear equation formula is represented the form as embodiment 1 among the embodiment 5, does not add at this and gives unnecessary details.

In the optical photography lens combination of embodiment 5, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.52mm；

Fno＝2.77；

The HFOV=32.1 degree.

In the optical photography lens combination of embodiment 5, the abbe number of first lens 510 (Abbe number) is V1, and the abbe number of second lens 520 is V2, and its pass is:

V1-V2＝32.4。

In the optical photography lens combination of embodiment 5, thing side surface 511 radius-of-curvature of first lens 510 are R1, be R2 as side surface 512 radius-of-curvature, thing side surface 521 radius-of-curvature of second lens 520 are R3, be R4 as side surface 522 radius-of-curvature, thing side surface 531 radius-of-curvature of the 3rd lens 530 are R5, be R6 as side surface 532 radius-of-curvature, its pass is:

|R1/R2|＝0.33；

(R3+R4)/(R3-R4)=-4.26; And

(R5+R6)/(R5-R6)＝2.75。

In the optical photography lens combination of embodiment 5, thing side surface 541 radius-of-curvature of the 4th lens 540 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.24。

In the optical photography lens combination of embodiment 5, the focal length of optical photography lens combination is f, and the focal length of first lens 510 is f1, and the focal length of second lens 520 is f2, and the focal length of the 3rd lens 530 is f3, and the focal length of the 4th lens 540 is f4, and its pass is:

f/f1＝1.79；

f/f2＝-0.52；

F/f4=-1.84; And

f1/f3＝0.65。

In the optical photography lens combination of embodiment 5, aperture 500 to the distance of imaging surface 550 on optical axis is SL, and the thing side surface 511 of first lens 510 is TTL to the distance of imaging surface 550 on optical axis, and its pass is:

SL/TTL＝0.97。

In the optical photography lens combination of embodiment 5, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 550, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 511 to the distance of imaging surface 550 on optical axis of itself and first lens 510 is that the pass of TTL is:

TTL/ImgH＝1.79。

Cooperation is with reference to table nine and table ten, and wherein table nine is the detailed structured data of Fig. 9 embodiment 5, and table ten is the aspherical surface data among the embodiment 5.

Table nine

Asphericity coefficient

Table ten

In the table nine, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents that in regular turn and in the table ten, k represents the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Please refer to Figure 11 and Figure 12, wherein Figure 11 illustrates the synoptic diagram according to a kind of optical photography lens combination of the utility model embodiment 6, and Figure 12 is spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 6 from left to right in regular turn and distorts curve map.As shown in Figure 11, the optical photography lens combination of embodiment 6 extremely comprises aperture 600, first lens 610, second lens 620, the 3rd lens 630, the 4th lens 640, infrared ray filtering optical filter 660 and imaging surface 650 as side in regular turn by the thing side.

The material of first lens 610 is plastics, and it has positive refracting power.The thing side surface 611 of first lens 610 and be all convex surface, and its thing side surface 611 and be all aspheric surface as side surface 612 as side surface 612.

The material of second lens 620 is plastics, and it has negative refracting power.The thing side surface 621 of second lens 620 and be all concave surface, and its thing side surface 621 and be all aspheric surface as side surface 622 as side surface 622.

The material of the 3rd lens 630 is plastics, and it has positive refracting power.The thing side surface 631 of the 3rd lens 630 is concave surface, is convex surface as side surface 632, and its thing side surface 631 and be all aspheric surface as side surface 632.

The material of the 4th lens 640 is plastics, and it has negative refracting power.The thing side surface 641 of the 4th lens 640 is concave surface, is convex surface as side surface 642, and its thing side surface 641 and be all aspheric surface as side surface 642.

Infrared ray filtering optical filter 660 is arranged at 650 of the 4th lens 640 and imaging surfaces, does not influence the focal length of optical photography lens combination.

Aspheric curvilinear equation formula is represented the form as embodiment 1 among the embodiment 6, does not add at this and gives unnecessary details.

In the optical photography lens combination of embodiment 6, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and half of maximum visual angle is HFOV in the whole optical photography lens combination, and its numerical value is as follows respectively:

f＝4.44mm；

Fno＝2.80；

The HFOV=32.4 degree.

In the optical photography lens combination of embodiment 6, the abbe number of first lens 610 (Abbe number) is V1, and the abbe number of second lens 620 is V2, and its pass is:

V1-V2＝29.2。

In the optical photography lens combination of embodiment 6, thing side surface 611 radius-of-curvature of first lens 610 are R1, be R2 as side surface 612 radius-of-curvature, thing side surface 621 radius-of-curvature of second lens 620 are R3, be R4 as side surface 622 radius-of-curvature, thing side surface 631 radius-of-curvature of the 3rd lens 630 are R5, be R6 as side surface 632 radius-of-curvature, its pass is:

|R1/R2|＝0.50；

(R3+R4)/(R3-R4)=-0.59; And

(R5+R6)/(R5-R6)＝1.80。

In the optical photography lens combination of embodiment 6, thing side surface 641 radius-of-curvature of the 4th lens 640 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:

R7/f＝-0.27。

In the optical photography lens combination of embodiment 6, the focal length of optical photography lens combination is f, and the focal length of first lens 610 is f1, and the focal length of second lens 620 is f2, and the focal length of the 3rd lens 630 is f3, and the focal length of the 4th lens 640 is f4, and its pass is:

f/f1＝1.82；

f/f2＝-1.14；

F/f4=-1.83; And

f1/f3＝0.75。

In the optical photography lens combination of embodiment 6, aperture 600 to the distance of imaging surface 650 on optical axis is SL, and the thing side surface 611 of first lens 610 is TTL to the distance of imaging surface 650 on optical axis, and its pass is:

SL/TTL＝0.97。

In the optical photography lens combination of embodiment 6, the optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface 650, half of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and thing side surface 611 to the distance of imaging surface 650 on optical axis of itself and first lens 610 is that the pass of TTL is:

TTL/ImgH＝1.82。

Cooperation is with reference to table ten one and table ten two, and wherein table ten one is the detailed structured data of Figure 11 embodiment 6, and table ten two is the aspherical surface data among the embodiment 6.

Table ten one

Asphericity coefficient

Table ten two

In the table ten one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 represents in regular turn by the surface of thing side to the picture side, and in the table ten two, k represents the conical surface coefficient in the aspheric curve equation, and A1-A12 then represents each surperficial 1-12 rank asphericity coefficient.

Table one to table ten two is depicted as the different numerical value change tables of the utility model optical photography lens combination embodiment; the all true gained of testing of numerical value change of right each embodiment of the utility model; even use different numerical value, the product of same structure must belong to protection category of the present utility model.Table ten three is the numeric data of the corresponding the utility model correlated condition of each embodiment formula.

	Embodiment 1	Embodiment 2	Embodiment 3	Embodiment 4	Embodiment 5	Embodiment 6
							f	4.52	4.47	4.28	4.39	4.52	4.44
Fno	2.77	2.85	2.80	2.80	2.77	2.80
							HFOV	32.1	32.3	32.3	32.2	32.1	32.4
V1-V2	32.1	32.1	32.5	32.5	32.4	29.2
							\|R1/R2\|	0.21	0.25	0.28	0.06	0.33	0.50
(R3+R4)/(R3-R4)	-3.17	-0.96	-4.02	-1.20	-4.26	-0.59
							(R5+R6)/(R5-R6)	2.07	2.47	2.09	2.33	2.75	1.80
R7/f	-0.27	-0.41	-0.37	-0.30	-0.24	-0.27

f/f1	1.73	1.80	1.63	1.52	1.79	1.82
							f/f2	-0.69	-0.91	-0.57	-0.84	-0.52	-1.14
f/f4	-1.94	-1.99	-2.09	-1.68	-1.84	-1.83
							f1/f3	0.82	0.80	0.99	0.98	0.65	0.75
SL/TTL	0.97	0.88	0.97	0.85	0.97	0.97
							TTL/ImgH	1.79	1.79	1.81	1.81	1.79	1.82

Table ten three

In sum, the optical photography lens combination that the utility model provides can effectively be revised whole aberration, desensitising, more can obtain higher resolving power.

Though the utility model discloses as above with embodiment; right its is not in order to limit the utility model; anyly be familiar with this skill person; in not breaking away from spirit and scope of the present utility model; when can being used for a variety of modifications and variations, therefore protection domain of the present utility model is as the criterion when looking the scope that appending claims defines.

Claims

1. an optical photography lens combination is characterized in that, is extremely comprised in regular turn as side by the thing side:

One first lens have positive refracting power, and its thing side surface is a convex surface;

One second lens have negative refracting power;

One the 3rd lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side surface, and its thing side surface with as having at least one to be aspheric surface in the side surface; And

One the 4th lens have negative refracting power, and its thing side surface is a concave surface, and its thing side surface with as having one in the side surface at least for aspheric surface;

Wherein, the lens of tool refracting power are four in this optical photography lens combination, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of this optical photography lens combination is f, the focal length of these first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of these second lens is R3, be R4 as the side surface radius-of-curvature, and this optical photography lens combination comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, satisfies the following relationship formula:

-0.5＜R7/f＜0；

0.5＜f1/f3＜1.05；

-5.0＜(R3+R4)/(R3-R4)＜0; And

0.77＜SL/TTL＜1.1。

2. optical photography lens combination according to claim 1 is characterized in that, the thing side surface of the 4th lens and be all aspheric surface as side surface, and this thing side surface and this is as having at least a surface to be provided with at least one point of inflexion in the side surface.

3. optical photography lens combination according to claim 2 is characterized in that, the thing side surface of these second lens with as having one in the side surface at least for aspheric surface, and the 4th lens are plastic material.

4. optical photography lens combination according to claim 3 is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of these first lens is f1, and satisfies the following relationship formula:

1.3＜f/f1＜2.2。

5. optical photography lens combination according to claim 4 is characterized in that, the thing side surface radius-of-curvature of these first lens is R1, be R2 as the side surface radius-of-curvature, and satisfies the following relationship formula:

0＜|R1/R2|＜0.55。

6. optical photography lens combination according to claim 4 is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and satisfies the following relationship formula:

-2.5＜f/f4＜-1.5。

7. optical photography lens combination according to claim 5 is characterized in that, the thing side surface radius-of-curvature of the 3rd lens is R5, be R6 as the side surface radius-of-curvature, and satisfies the following relationship formula:

1.1＜(R5+R6)/(R5-R6)＜5.0。

8. optical photography lens combination according to claim 5 is characterized in that, the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and satisfies the following relationship formula:

-0.4＜R7/f＜-0.17。

9. optical photography lens combination according to claim 6 is characterized in that, the abbe number of these first lens is V1, and the abbe number V2 of these second lens, and satisfies the following relationship formula:

29＜V1-V2＜42。

10. optical photography lens combination according to claim 6, it is characterized in that, this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, and satisfies the following relationship formula:

0.92＜SL/TTL＜1.1。

11. optical photography lens combination according to claim 10 is characterized in that, the thing side surface radius-of-curvature of these second lens is R3, be R4 as the side surface radius-of-curvature, and it satisfies the following relationship formula:

-3.3＜(R3+R4)/(R3-R4)＜-0.7。

12. optical photography lens combination according to claim 6 is characterized in that the focal length of these first lens is f1, and the focal length of the 3rd lens is f3, and satisfies the following relationship formula:

0.7＜f1/f3＜1.0。

13. optical photography lens combination according to claim 3 is characterized in that, the thing side surface of these second lens with as having at least a surface to be provided with at least one point of inflexion in the side surface.

14. optical photography lens combination according to claim 13 is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of these second lens is f2, and satisfies the following relationship formula:

-0.75＜f/f2＜-0.4。

15. optical photography lens combination according to claim 13 is characterized in that, the thing side surface radius-of-curvature of these first lens is R1, be R2 as the side surface radius-of-curvature, and satisfies the following relationship formula:

0＜|R1/R2|＜0.35。

16. optical photography lens combination according to claim 1, it is characterized in that, the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, this optical photography lens combination is provided with a sense electronics optical assembly in addition in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and satisfies the following relationship formula:

TTL/ImgH＜1.95。

17. an optical photography lens combination is characterized in that, is extremely comprised in regular turn as side by the thing side:

One second lens have negative refracting power, and its thing side surface is a concave surface;

One the 3rd lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side surface; And

One the 4th lens have negative refracting power, and its thing side surface is concave surface, be convex surface as side surface, and its thing side surface and be all aspheric surface as side surface;

Wherein, the lens of tool refracting power are four in this optical photography lens combination, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of this optical photography lens combination is f, the focal length of these first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of the 3rd lens is R5, be R6 as the side surface radius-of-curvature, and this optical photography lens combination comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, satisfies the following relationship formula:

-1.0＜R7/f＜0；

0.5＜f1/f3＜1.05；

1.1＜(R5+R6)/(R5-R6)＜5; And

0.77＜SL/TTL＜1.1。

18. optical photography lens combination according to claim 17 is characterized in that, the 3rd lens and the 4th lens are all plastic material, and the thing side surface of the 4th lens with as having at least a surface to be provided with at least one point of inflexion in the side surface.

19. optical photography lens combination according to claim 18 is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and satisfies the following relationship formula:

-2.5＜f/f4＜-1.5。

20. optical photography lens combination according to claim 19 is characterized in that, the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and satisfies the following relationship formula:

-0.4＜R7/f＜-0.17。

21. optical photography lens combination according to claim 19, it is characterized in that, the thing side surface of these second lens with as having at least a surface to be provided with at least one point of inflexion in the side surface, and the thing side surface radius-of-curvature of these second lens is R3, be R4 as the side surface radius-of-curvature, it satisfies the following relationship formula:

-3.3＜(R3+R4)/(R3-R4)＜-0.7。

22. optical photography lens combination according to claim 19, it is characterized in that, this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of these first lens to the distance of this imaging surface on optical axis is TTL, and satisfies the following relationship formula:

0.92＜SL/TTL＜1.1。

23. optical photography lens combination according to claim 22 is characterized in that the focal length of these first lens is f1, and the focal length of the 3rd lens is f3, and satisfies the following relationship formula:

0.7＜f1/f3＜1.0。