CN102540405B - Optical imaging lens group - Google Patents

Optical imaging lens group Download PDF

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Publication number
CN102540405B
CN102540405B CN201010599660.8A CN201010599660A CN102540405B CN 102540405 B CN102540405 B CN 102540405B CN 201010599660 A CN201010599660 A CN 201010599660A CN 102540405 B CN102540405 B CN 102540405B
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lens
optical image
lens combination
taking lens
thing side
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CN102540405A (en
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黄歆璇
蔡宗翰
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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Abstract

The invention provides an optical imaging lens group. The optical imaging lens group sequentially comprises a first lens, a second lens, a third lens, a fourth lens and a fifth lens from an object side to an image side, wherein the first lens has positive refractive power, and the surface of the object side of the first lens is a convex surface; the second lens has negative refractive power; and the surface of the image side of the fifth lens is a concave surface and has at least one point of inflexion. In a lens configuration mode, the optical imaging lens group has a large viewing angle, system sensitivity is reduced, and high resolution power can be obtained.

Description

Optical image-taking lens combination
Technical field
The invention relates to a kind of optical image-taking lens combination, and particularly relevant for a kind of miniaturization optical image-taking lens combination being applied on electronic product.
Background technology
In recent years, along with having the rise of the portable electronic product of camera function, the demand of miniaturization phtographic lens day by day improves.The photosensory assembly of general phtographic lens is nothing more than being photosensitive coupling component (Charge Coupled Device, CCD) or complementary matal-oxide semiconductor assembly (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two kinds, and along with progressing greatly of semiconductor process techniques, the Pixel Dimensions of photosensory assembly is dwindled, miniaturization phtographic lens, gradually toward the development of high pixel field, therefore, also increases the requirement of image quality day by day.
Tradition is equipped on the miniaturization phtographic lens on portable electronic product, as United States Patent (USP) the 7th, 355, shown in No. 801, many employing four-piece type lens arrangements are main, but prevailing due to high standard mobile devices such as intelligent mobile phone (Smart Phone) and PDA (Personal Digital Assistant), drive miniaturization phtographic lens riseing rapidly in pixel and image quality, known four-piece type lens combination cannot meet the more phtographic lens module of high-order, add electronic product constantly toward high-performance and lightening trend development, therefore be badly in need of a kind of be applicable to frivolous, on portable electronic product, image quality is good and be unlikely to make the long optical image-taking lens combination of camera lens total length.
Summary of the invention
The object of the present invention is to provide a kind of optical image-taking lens combination, be applicable on frivolous, portable electronic product, image quality is good and be unlikely to make camera lens total length long.
According to the invention provides a kind of optical image-taking lens combination, by thing side, extremely as side, sequentially comprise a first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens.First lens has positive refracting power, and its thing side surface is convex surface.The second lens have negative refracting power.Its thing side surface of the 5th lens with as having at least a surface to be provided with at least one point of inflexion in side surface, and be plastic material, and the 5th lens is concave surface as side surface.Wherein, the focal length of optical image-taking lens combination is f, the focal length of first lens is f1, and optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, aperture to the distance of imaging surface is SL, to imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, and when the relative optical axis angle θ 1 of an angle of incidence of light be 36 degree and by the center of aperture, the distance of its vertical optical axis of intersection point as side surface of this light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, it meets following relationship:
0.7<f/f1<2.0；
0.7<SL/TTL<1.2; And
0.3<Yc1/ImgH<0.9。
On the other hand, according to the invention provides an optical image-taking lens combination, by thing side, extremely as side, sequentially comprise a first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens.First lens has positive refracting power, and its thing side surface is convex surface.The second lens have negative refracting power.The 4th lens have positive refracting power, and have at least one aspheric surface.The 5th lens have negative refracting power, and it is concave surface as side surface, and have at least one aspheric surface.Wherein, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, be R10, and this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, aperture to the distance of imaging surface is SL, to imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, and when the relative optical axis angle θ 1 of an angle of incidence of light be 36 degree and by the center of aperture, the distance of its vertical optical axis of intersection point as side surface of this light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, it meets following relationship:
-5<R10/R9<5；
0.7<SL/TTL<1.2; And
0.3<Yc1/ImgH<0.9。
Moreover, according to the invention provides another optical image-taking lens combination, by thing side, extremely as side, sequentially comprise a first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens.First lens has positive refracting power, and its thing side surface is convex surface.The 4th lens have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface, and has at least one aspheric surface.The 5th lens have negative refracting power, its thing side surface with as having at least a surface to be provided with at least one point of inflexion in side surface, and be concave surface as side surface.Wherein, FOV is the maximum visual angle of optical image-taking lens combination, and the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, is R10, and it meets following relationship:
FOV>72; And
0<(R9+R10)/(R9-R10)<1.7。
Wherein, first lens has positive refracting power, can provide optical image-taking lens combination required part refracting power, contributes to shorten the total length of optical image-taking lens combination.The second lens have negative refracting power, the aberration that it can revisal first lens produces, and revise the aberration that optical image-taking lens combination produces.The 4th lens have positive refracting power, and the positive refracting power that it can distribute first lens reduces the susceptibility of whole optical image-taking lens combination.The 5th lens have negative refracting power, can make the principal point of optical image-taking lens combination away from imaging surface, and the total length of favourable shortening optical image-taking lens combination, maintains camera lens miniaturization.
When f/f1 meets above-mentioned relation formula, the refracting power of first lens can be controlled the optics total length of whole optical image-taking lens combination, and can avoid high-order spherical aberration.When SL/TTL meets above-mentioned relation formula, optical image-taking lens combination can obtain good balance in heart characteristic far away and Wide-angle.
When Yc1/ImgH meets above-mentioned relation formula, guarantee that optical image-taking lens combination has enough field angle, and be conducive to compacting and be incident in the angle on photosensory assembly from axle field rays, and the further aberration of modified off-axis visual field.
When R10/R9 meets above-mentioned relation formula, can revise the astigmatism (Astigmatism) and distortion of optical image-taking lens combination, can effectively reduce light and be incident in the angle on sense electronics optical assembly, improve the sensitization susceptibility of sense electronics optical assembly, minimizing system produces the possibility at dark angle simultaneously.
When FOV meets above-mentioned relation formula, optical image-taking lens combination can provide with great visual angle, to take the more image of broad range.And when (R9+R10)/(R9-R10) meet above-listed relational expression, can make the principal point of optical image-taking lens combination away from imaging surface, can shorten the optics total length of optical image-taking lens combination, to maintain the miniaturization of camera lens.
Therefore, optical image-taking lens combination provided by the invention, it can have with great visual angle, reduce system sensitivity, more can obtain higher resolving power.
Accompanying drawing explanation
For above and other objects of the present invention, feature, advantage and embodiment can be become apparent, appended the description of the drawings is as follows:
Fig. 1 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 1;
Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of Fig. 1 optical image-taking lens combination and distorts curve map;
Fig. 3 is the light incident schematic diagram illustrating according to the optical image-taking lens combination of Fig. 1 embodiment;
Fig. 4 is another angle light incident schematic diagram illustrating according to the optical image-taking lens combination of Fig. 1 embodiment;
Fig. 5 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 2;
Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of Fig. 5 optical image-taking lens combination and distorts curve map;
Fig. 7 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 3;
Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of Fig. 7 optical image-taking lens combination and distorts curve map;
Fig. 9 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 4;
Figure 10 is sequentially from left to right spherical aberration, the astigmatism of Fig. 9 optical image-taking lens combination and distorts curve map;
Figure 11 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 5;
Figure 12 is sequentially from left to right spherical aberration, the astigmatism of Figure 11 optical image-taking lens combination and distorts curve map;
Figure 13 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 6;
Figure 14 is sequentially from left to right spherical aberration, the astigmatism of Figure 13 optical image-taking lens combination and distorts curve map;
Figure 15 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 7;
Figure 16 is sequentially from left to right spherical aberration, the astigmatism of Figure 15 optical image-taking lens combination and distorts curve map;
Figure 17 is the schematic diagram illustrating according to a kind of optical image-taking lens combination of the embodiment of the present invention 8;
Figure 18 is sequentially from left to right spherical aberration, the astigmatism of Figure 17 optical image-taking lens combination and distorts curve map.
[primary clustering symbol description]
Aperture: 100,200,300,400,500,600,700,800
First lens: 110,210,310,410,510,610,710,810
Thing side surface: 111,211,311,411,511,611,711,811
Picture side surface: 112,212,312,412,512,612,712,812
The second lens: 120,220,320,420,520,620,720,820
Thing side surface: 121,221,321,421,521,621,721,821
Picture side surface: 122,222,322,422,522,622,722,822
The 3rd lens: 130,230,330,430,530,630,730,830
Thing side surface: 131,231,331,431,531,631,731,831
Picture side surface: 132,232,332,432,532,632,732,832
The 4th lens: 140,240,340,440,540,640,740,840
Thing side surface: 141,241,341,441,541,641,741,841
Picture side surface: 142,242,342,442,542,642,742,842
The 5th lens: 150,250,350,450,550,650,750,850
Thing side surface: 151,251,351,451,551,651,751,851
Picture side surface 152,252,352,452,552,652,752,852
Imaging surface: 160,260,360,460,560,660,760,860
Infrared filter: 170,270,370,470,570,670,770,870
F: the focal length of whole optical image-taking lens combination
F1: the focal length of first lens
F4: the focal length of the 4th lens
F5: the focal length of the 5th 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 the second lens
R4: the picture side surface radius-of-curvature of the second lens
R9: the thing side surface radius-of-curvature of the 5th lens
R10: the picture side surface radius-of-curvature of the 5th lens
V1: the abbe number of first lens
V2: the abbe number of the second lens
V3: the abbe number of the 3rd lens
SL: aperture is the distance on optical axis to imaging surface
TTL: the thing side surface of first lens is the distance on optical axis to imaging surface
ImgH: half of sense electronics optical assembly effective pixel area diagonal line length
FOV: the maximum visual angle of optical image-taking lens combination
Yc1: the relative optical axis angle of angle of incidence of light is 36 degree and passes through aperture center, the distance of its vertical optical axis of intersection point of the picture side surface of light and the 5th lens
Yc2: the relative optical axis angle of angle of incidence of light is 37 degree and passes through aperture center, the distance of its vertical optical axis of intersection point of the picture side surface of light and the 5th lens
Embodiment
The invention provides a kind of optical image-taking lens combination, by thing side, to sequentially comprising first lens, the second lens, the 3rd lens, the 4th lens and the 5th lens as side, a sense electronics optical assembly is separately set in imaging surface.
First lens has positive refracting power, and it can provide optical image-taking lens combination required part refracting power, contributes to shorten the total length of optical image-taking lens combination.The thing side surface of first lens is convex surface, as side surface, can be convex surface or concave surface.When the thing side surface of first lens and be all convex surface (being biconvex lens) as side surface, can strengthen the configuration of first lens refracting power, the total length of optical image-taking lens combination is shortened.And the thing side surface of working as first lens is convex surface, is concave surface (being crescent lens) as side surface, can revise the astigmatism of optical image-taking lens combination.
The second lens have negative refracting power, and the aberration that can effectively produce the first lens of the positive refracting power of tool is done revisal, and are conducive to the aberration of update the system simultaneously.
When the 4th lens have positive refracting power, can effectively distribute the positive refracting power of first lens, to reduce the susceptibility of whole optical image-taking lens combination.The 4th lens can have aspheric surface, and its thing side surface can be concave surface, as side surface, can be convex surface.Whereby, can revise the astigmatism of optical image-taking lens combination.
The 5th lens are arranged between the 4th lens and imaging surface, and the 5th lens can be plastic material, and are concave surface as side surface, and it has aspheric surface.When it has negative refracting power, can make the principal point of optical image-taking lens combination away from imaging surface, to shorten the optics total length of optical image-taking lens combination, maintain the miniaturization of camera lens.In addition, when the 5th lens have the point of inflexion, can effectively suppress from the light of axle visual field and be incident in the angle on photosensory assembly, and the further aberration of modified off-axis visual field.
The focal length of optical image-taking lens combination is f, and the focal length of first lens is f1, and it meets following relationship:
0.7<f/f1<2.0，
Whereby, the refracting power size configure of first lens is balance comparatively, can control the optics total length of optical image-taking lens combination, and avoids high-order spherical aberration simultaneously.
In addition, optical image-taking lens combination can further meet following relationship:
1.0<f/f1<1.8。
Wherein, optical image-taking lens combination separately arranges an aperture, and to imaging surface, the distance on optical axis is SL to this aperture, and to imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, and it meets following relationship:
0.7<SL/TTL<1.2，
When this SL/TTL is less than 0.7, the light angle being incident on sense electronics optical assembly is excessive, easily causes the shortcoming that photosensitive effect is bad and aberration is excessive.When SL/TTL is greater than 1.2, can make overall optical system total length long again.Therefore, this optical imaging lens group, when meeting 0.7<SL/TTL<1.2, can obtain the advantage of heart characteristic far away and be unlikely to make whole total length long.
When the relative optical axis angle θ 1 of an angle of incidence of light is 36 degree and by the center of aperture, the distance of its vertical optical axis of intersection point as side surface of this light and the 5th lens is Yc1, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
0.3<Yc1/ImgH<0.9，
Whereby, can guarantee that optical image-taking lens combination has enough field angle, and be conducive to compacting and be incident in the angle on photosensory assembly from axle field rays, and the further aberration of modified off-axis visual field.
The focal distance f of optical image-taking lens combination, the focal distance f of first lens 1, and the focal distance f 4 of the 4th lens, it meets following relationship:
0.0<f/f4-f/f1<1.5，
Whereby, can make the refracting power of the 4th lens and first lens configure comparatively balance, to reduce the susceptibility of optical image-taking lens combination.
When the thing side surface radius-of-curvature of the 5th lens is R9, is R10 as side surface radius-of-curvature, it meets following relationship:
-5<R10/R9<5，
Whereby, can revise astigmatism and the distortion of optical image-taking lens combination, can reduce light and be incident in the angle on sense electronics optical assembly, improve the sensitization susceptibility of sense electronics optical assembly, reduce optical image-taking lens combination and produce the possibility at dark angle simultaneously.
In addition, optical image-taking lens combination can further meet following relationship:
-1.2<R10/R9<0。
Moreover optical image-taking lens combination more can further meet following relationship:
-1<R10/R9<0。
The focal length of optical image-taking lens combination is f, and the focal length of the 5th lens is f5, and it meets following relationship:
-3.2<f/f5<-1.6，
Whereby, the 5th lens can balances and are revised every aberration that optical image-taking lens combination produces, and then make optical image-taking lens combination obtain higher image quality.
In addition, optical image-taking lens combination can further meet following relationship:
-2.8<f/f5<-1.6。
When the thing side surface radius-of-curvature of first lens is R1, is R2 as side surface radius-of-curvature, it meets following relationship:
|R1/R2|<0.3，
Whereby, can receive poor (Spherical Aberration) by revisal sphere, more can shorten the total length of first lens to camera lens, and then make the miniaturization of camera lens.
The abbe number of the second lens is V2, and the abbe number of the 3rd lens is V3, and it meets following relationship:
|V2-V3|<10，
Whereby, ability that can improving optical taking lens group correction aberration.
The focal length of optical image-taking lens combination is f, and the focal length of the 4th lens is f4, and it meets following relationship:
1.3<f/f4<2.5，
Control whereby the refracting power size configure of the 4th lens, can revise the aberration of optical orientation lens combination and reduce its susceptibility.
When the relative optical axis angle θ 2 of an angle of incidence of light is 37 degree and passes through aperture center, the distance of its vertical optical axis of intersection point as side surface of this light and the 5th lens is Yc2, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
0.5<Yc2/ImgH<0.9。
When the abbe number of first lens is V1, the abbe number of the second lens is V2, and it meets following relationship:
28<V1-V2<45，
Whereby, can revise the aberration in optical image-taking lens combination.
In addition, optical image-taking lens combination can further meet following relationship:
28<V1-V2<42
When the thing side surface radius of curvature R 9 of the 5th lens, as side surface radius of curvature R 10, it meets following relationship:
0<(R9+R10)/(R9-R10)<1.7，
Whereby, can make the principal point of optical image-taking lens combination away from imaging surface, to shorten the optics total length of optical image-taking lens combination, maintain the miniaturization of camera lens.
In addition, optical image-taking lens combination can further meet following relationship:
0<(R9+R10)/(R9-R10)<1.0。
When the thing side surface radius-of-curvature of the second lens is R3, is R4 as side surface radius-of-curvature, it meets following relationship:
-1<R4/R3<0，
Whereby, the aberration that can produce first lens is done revisal, and the refracting power of balance the second lens, avoids producing too much higher order aberratons.
To imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
TTL/ImgH<1.75，
Whereby, can maintain the miniaturization of optical image-taking lens combination, to be equipped on frivolous portable electronic product.
The maximum visual angle of optical image-taking lens combination is FOV, and it meets following scope:
FOV>72，
Whereby, provide with great visual angle, can take the more image of broad range.
According to above-mentioned embodiment, below propose specific embodiment and coordinate accompanying drawing to be described in detail.
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 1, and Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of Fig. 1 optical image-taking lens combination and distorts curve map.As shown in Figure 1, the optical image-taking lens combination of embodiment 1 extremely comprises first lens 110, aperture 100, the second lens 120, the 3rd lens 130, the 4th lens 140, the 5th lens 150, infrared filter (IR Filter) 170 and imaging surface 160 as side by thing side.
Further illustrate, the material of first lens 110 is plastics, and it has positive refracting power, and the thing side surface 111 of first lens 110 and be all convex surface as side surface 112, and is all aspheric surface.
The material of the second lens 120 is plastics, and it has negative refracting power, and the thing side surface 121 of the second lens 120 and be all concave surface as side surface 122, and is all aspheric surface.
The material of the 3rd lens 130 is plastics, and it has negative refracting power, and the thing side surface 131 of the 3rd lens 130 is concave surface, as side surface 132, is convex surface, and is all aspheric surface.
The material of the 4th lens 140 is plastics, and it has positive refracting power, and the thing side surface 141 of the 4th lens 140 is concave surface, as side surface 142, is convex surface, and is all aspheric surface.
The material of the 5th lens 150 is plastics, and it has negative refracting power, and the thing side surface 151 of the 5th lens 150 and be all concave surface as side surface 152, and is all aspheric surface.In addition, the thing side surface 151 of the 5th lens 150 with as having at least a surface to be provided with at least one point of inflexion in side surface 152.
The material of infrared filter 170 is glass, and it is arranged between the 5th lens 150 and imaging surface 160, does not affect the focal length of optical image-taking 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 ) ) + &Sigma; i ( Ai ) &times; ( Y i )
Wherein:
X: the point that in aspheric surface, distance optical axis is Y, itself and the relative height that is tangential on the tangent plane on summit on aspheric surface optical axis;
Y: the point in aspheric curve and the distance of optical axis;
K: conical surface coefficient; And
Ai: i rank asphericity coefficient.
In the optical image-taking lens combination of embodiment 1, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.83mm；
Fno=2.70；
HFOV=37.6 degree.
In embodiment 1, the abbe number of first lens 110 is V1, and the abbe number of the second lens 120 is V2, and the abbe number of the 3rd lens 130 is V3, and its relation is as follows:
V1-V2=32.5；
|V2-V3|=0.0。
In embodiment 1, thing side surface 111 radius-of-curvature of first lens 110 are R1, as side surface 112 radius-of-curvature, are R2, thing side surface 121 radius-of-curvature of the second lens 120 are R3, as side surface 122 radius-of-curvature, are R4, thing side surface 151 radius-of-curvature of the 5th lens 150 are R9, as side surface 152 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.10；
R4/R3=-0.65；
R10/R9=-0.36；
(R9+R10)/(R9-R10)=0.47。
In embodiment 1, the focal length of first lens 110 is f1, and the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.44；
f/f4=2.15；
f/f5=-2.27;
f/f4-f/f1=0.71。
Cooperation is with reference to Fig. 3 and Fig. 4, and it illustrates respectively the light incident schematic diagram according to the optical image-taking lens combination of Fig. 1 embodiment.As shown in Figure 3, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 100 centers, the distance of its vertical optical axis of intersection point as side surface 152 of light and the 5th lens 150 is Yc1.Again as shown in Figure 4, when the relative optical axis angle θ 2 of angle of incidence of light is 37 degree and passes through aperture 100 centers, the distance of its vertical optical axis of intersection point as side surface 152 of light and the 5th lens 150 is Yc2.In addition, in embodiment 1, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 160, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.70；
Yc2/ImgH=0.73。
In embodiment 1, aperture 100 is SL to the distance of imaging surface 160 on optical axis, and the thing side surface 111 of first lens 110 is TTL to the distance of imaging surface 160 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.86；
TTL/ImgH=1.54。
Coordinate with reference to table one and table two, wherein table one is the structured data that Fig. 1 embodiment 1 is detailed again, and table two is the aspherical surface data in embodiment 1.
Figure GDA00002308692900121
Table one
Asphericity coefficient
Table two
In table one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table two, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Fig. 5 and 6, wherein Fig. 5 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 2, and Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of Fig. 5 optical image-taking lens combination and distorts curve map.As shown in Figure 5, the optical image-taking lens combination of embodiment 2 extremely comprises first lens 210, aperture 200, the second lens 220, the 3rd lens 230, the 4th lens 240, the 5th lens 250, infrared filter (IR Filter) 270 and imaging surface 260 as side by thing side.
Further illustrate, the material of first lens 210 is plastics, and it has positive refracting power, and the thing side surface 211 of first lens 210 and be all convex surface as side surface 212, and is all aspheric surface.
The material of the second lens 220 is plastics, and it has negative refracting power, and the thing side surface 221 of the second lens 220 and be all concave surface as side surface 222, and is all aspheric surface.
The material of the 3rd lens 230 is plastics, and it has negative refracting power, and the thing side surface 231 of the 3rd lens 230 and be all concave surface as side surface 232, and is all aspheric surface.
The material of the 4th lens 240 is plastics, and it has positive refracting power, and the thing side surface 241 of the 4th lens 240 is concave surface, as side surface 242, is convex surface, and is all aspheric surface.
The material of the 5th lens 250 is plastics, and it has negative refracting power, and the thing side surface 251 of the 5th lens 250 and be all concave surface as side surface 252, and is all aspheric surface.In addition, the thing side surface 251 of the 5th lens 250 with as having at least a surface to be provided with at least one point of inflexion in side surface 252.
The material of infrared filter 270 is glass, and it is arranged between the 5th lens 250 and imaging surface 260, does not affect the focal length of optical image-taking lens combination.
In embodiment 2, aspheric curvilinear equation formula represents as the form of embodiment 1.
In the optical image-taking lens combination of embodiment 2, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.83mm；
Fno=2.70；
HFOV=37.4 degree.
In embodiment 2, the abbe number of first lens 210 is V1, and the abbe number of the second lens 220 is V2, and the abbe number of the 3rd lens 230 is V3, and its relation is as follows:
V1-V2=34.4；
|V2-V3|=2.0。
In embodiment 2, thing side surface 211 radius-of-curvature of first lens 210 are R1, as side surface 212 radius-of-curvature, are R2, thing side surface 221 radius-of-curvature of the second lens 220 are R3, as side surface 222 radius-of-curvature, are R4, thing side surface 251 radius-of-curvature of the 5th lens 250 are R9, as side surface 252 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.02；
R4/R3=-0.14；
R10/R9=-0.27；
(R9+R10)/(R9-R10)=0.57。
In embodiment 2, the focal length of first lens 210 is f1, and the focal length of the 4th lens 240 is f4, and the focal length of the 5th lens 250 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.30；
f/f4=2.14；
f/f5=-2.23；
f/f4-f/f1=0.84。
In embodiment 2, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 200 centers, the distance of its vertical optical axis of intersection point as side surface 252 of light and the 5th lens 250 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 200 centers, the distance of its vertical optical axis of intersection point as side surface 252 of light and the 5th lens 250 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 2, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 260, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.68；
Yc2/ImgH=0.71。
In embodiment 2, aperture 200 is SL to the distance of imaging surface 260 on optical axis, and the thing side surface 211 of first lens 210 is TTL to the distance of imaging surface 260 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.87；
TTL/ImgH=1.55。
Coordinate with reference to table three and table four, wherein table three is the structured data that Fig. 5 embodiment 2 is detailed again, and table four is the aspherical surface data in embodiment 2.
Figure GDA00002308692900151
Table three
Asphericity coefficient
Table four
In table three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table four, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 3, and Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of Fig. 7 optical image-taking lens combination and distorts curve map.As shown in Figure 7, the optical image-taking lens combination of embodiment 3 extremely comprises first lens 310, aperture 300, the second lens 320, the 3rd lens 330, the 4th lens 340, the 5th lens 350, infrared filter (IR Filter) 370 and imaging surface 360 as side by thing side.
Further illustrate, the material of first lens 310 is plastics, and it has positive refracting power, and the thing side surface 311 of first lens 310 is convex surface, as side surface 312, is concave surface, and is all aspheric surface.
The material of the second lens 320 is plastics, and it has negative refracting power, and the thing side surface 321 of the second lens 320 is convex surface, as side surface 322, is concave surface, and is all aspheric surface.
The material of the 3rd lens 330 is plastics, and it has negative refracting power, and the thing side surface 331 of the 3rd lens 330 is concave surface, as side surface 332, is convex surface, and is all aspheric surface.
The material of the 4th lens 340 is plastics, and it has positive refracting power, and the thing side surface 341 of the 4th lens 340 is concave surface, as side surface 342, is convex surface, and is all aspheric surface.
The material of the 5th lens 350 is plastics, and it has negative refracting power, and the thing side surface 351 of the 5th lens 350 and be all concave surface as side surface 352, and is all aspheric surface.In addition, the thing side surface 351 of the 5th lens 350 with as having at least a surface to be provided with at least one point of inflexion in side surface 352.
The material of infrared filter 370 is glass, and it is arranged between the 5th lens 350 and imaging surface 360, does not affect the focal length of optical image-taking lens combination.
In embodiment 3, aspheric curvilinear equation formula represents as the form of embodiment 1.
In the optical image-taking lens combination of embodiment 3, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=4.00mm；
Fno=2.85；
HFOV=37.0 degree.
In embodiment 3, the abbe number of first lens 310 is V1, and the abbe number of the second lens 320 is V2, and the abbe number of the 3rd lens 330 is V3, and its relation is as follows:
V1-V2=32.1；
|V2-V3|=0.0。
In embodiment 3, thing side surface 311 radius-of-curvature of first lens 310 are R1, as side surface 312 radius-of-curvature, are R2, thing side surface 321 radius-of-curvature of the second lens 320 are R3, as side surface 322 radius-of-curvature, are R4, thing side surface 351 radius-of-curvature of the 5th lens 350 are R9, as side surface 352 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.07；
R4/R3=0.05；
R10/R9=-0.72；
(R9+R10)/(R9-R10)=0.16。
In embodiment 3, the focal length of first lens 310 is f1, and the focal length of the 4th lens 340 is f4, and the focal length of the 5th lens 350 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.44；
f/f4=2.22；
f/f5=-2.22；
f/f4-f/f1=0.78。
In embodiment 3, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 300 centers, the distance of its vertical optical axis of intersection point as side surface 352 of light and the 5th lens 350 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 300 centers, the distance of its vertical optical axis of intersection point as side surface 352 of light and the 5th lens 350 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 3, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 360, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.68；
Yc2/ImgH=0.71。
In embodiment 3, aperture 300 is SL to the distance of imaging surface 360 on optical axis, and the thing side surface 311 of first lens 310 is TTL to the distance of imaging surface 360 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.88；
TTL/ImgH=1.57。
Coordinate with reference to table five and table six, wherein table five is the structured data that Fig. 7 embodiment 3 is detailed again, and table six is the aspherical surface data in embodiment 3.
Figure GDA00002308692900181
Table five
Asphericity coefficient
Figure GDA00002308692900182
Table six
In table five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table six, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Fig. 9 and Figure 10, wherein Fig. 9 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 4, and Figure 10 is sequentially from left to right spherical aberration, the astigmatism of Fig. 9 optical image-taking lens combination and distorts curve map.As shown in Figure 9, the optical image-taking lens combination of embodiment 4 extremely comprises aperture 400, first lens 410, the second lens 420, the 3rd lens 430, the 4th lens 440, the 5th lens 450, infrared filter (IR Filter) 470 and imaging surface 460 as side by thing side.
Further illustrate, the material of first lens 410 is plastics, and it has positive refracting power, and the thing side surface 411 of first lens 410 and be all convex surface as side surface 412, and is all aspheric surface.
The material of the second lens 420 is plastics, and it has negative refracting power, and the thing side surface 421 of the second lens 420 and be all concave surface as side surface 422, and is all aspheric surface.
The material of the 3rd lens 430 is plastics, and it has negative refracting power, and the thing side surface 431 of the 3rd lens 430 is concave surface, as side surface 432, is convex surface, and is all aspheric surface.
The material of the 4th lens 440 is plastics, and it has positive refracting power, and the thing side surface 441 of the 4th lens 440 is concave surface, as side surface 442, is convex surface, and is all aspheric surface.
The material of the 5th lens 450 is plastics, and it has negative refracting power, and the thing side surface 451 of the 5th lens 450 and be all concave surface as side surface 452, and is all aspheric surface.In addition, the thing side surface 451 of the 5th lens 450 with as having at least a surface to be provided with at least one point of inflexion in side surface 452.
The material of infrared filter 470 is glass, and it is arranged between the 5th lens 450 and imaging surface 460, does not affect the focal length of optical image-taking lens combination.
In embodiment 4, aspheric curvilinear equation formula represents as the form of embodiment 1.
In embodiment 4, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.90mm；
Fno=2.85；
HFOV=37.2 degree.
In embodiment 4, the abbe number of first lens 410 is V1, and the abbe number of the second lens 420 is V2, and the abbe number of the 3rd lens 430 is V3, and its relation is as follows:
V1-V2=32.1；
|V2-V3|=0.0。
In embodiment 4, thing side surface 411 radius-of-curvature of first lens 410 are R1, as side surface 412 radius-of-curvature, are R2, thing side surface 421 radius-of-curvature of the second lens 420 are R3, as side surface 422 radius-of-curvature, are R4, thing side surface 451 radius-of-curvature of the 5th lens 450 are R9, as side surface 452 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.02；
R4/R3=-0.08；
R10/R9=-0.74；
(R9+R10)/(R9-R10)=0.15。
In embodiment 4, the focal length of first lens 410 is f1, and the focal length of the 4th lens 440 is f4, and the focal length of the 5th lens 450 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.51；
f/f4=2.02；
f/f5=-2.17；
f/f4-f/f1=0.51。
In embodiment 4, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 400 centers, the distance of its vertical optical axis of intersection point as side surface 452 of light and the 5th lens 450 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 400 centers, the distance of its vertical optical axis of intersection point as side surface 452 of light and the 5th lens 450 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 4, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 460, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.70；
Yc2/ImgH=0.72。
In embodiment 4, aperture 400 is SL to the distance of imaging surface 460 on optical axis, and the thing side surface 411 of first lens 410 is TTL to the distance of imaging surface 460 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.97;
TTL/ImgH=1.52。
Coordinate with reference to table seven and table eight, wherein table seven is the structured data that Fig. 9 embodiment 4 is detailed again, and table eight is the aspherical surface data in embodiment 4.
Figure GDA00002308692900211
Table seven
Asphericity coefficient
Figure GDA00002308692900212
Table eight
In table seven, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table eight, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Figure 11 and Figure 12, wherein Figure 11 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 5, and Figure 12 is sequentially from left to right spherical aberration, the astigmatism of Figure 11 optical image-taking lens combination and distorts curve map.As shown in Figure 11, the optical image-taking lens combination of embodiment 5 extremely comprises aperture 500, first lens 510, the second lens 520, the 3rd lens 530, the 4th lens 540, the 5th lens 550, infrared filter (IR Filter) 570 and imaging surface 560 as side by thing side.
Further illustrate, the material of first lens 510 is plastics, and it has positive refracting power, and the thing side surface 511 of first lens 510 and be all convex surface as side surface 512, and is all aspheric surface.
The material of the second lens 520 is plastics, and it has negative refracting power, and the thing side surface 521 of the second lens 520 and be all concave surface as side surface 522, and is all aspheric surface.
The material of the 3rd lens 530 is plastics, and it has positive refracting power, and the thing side surface 531 of the 3rd lens 530 is concave surface, as side surface 532, is convex surface, and is all aspheric surface.
The material of the 4th lens 540 is plastics, and it has positive refracting power, and the thing side surface 541 of the 4th lens 540 is concave surface, as side surface 542, is convex surface, and is all aspheric surface.
The material of the 5th lens 550 is plastics, and it has negative refracting power, and the thing side surface 551 of the 5th lens 550 and be all concave surface as side surface 552, and is all aspheric surface.In addition, the thing side surface 551 of the 5th lens 550 with as having at least a surface to be provided with at least one point of inflexion in side surface 552.
The material of infrared filter 570 is glass, and it is arranged between the 5th lens 550 and imaging surface 560, does not affect the focal length of optical image-taking lens combination.
In embodiment 5, aspheric curvilinear equation formula represents as the form of embodiment 1.
In embodiment 5, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.94mm；
Fno=2.90；
HFOV=37.3 degree.
In embodiment 5, the abbe number of first lens 510 is V1, and the abbe number of the second lens 520 is V2, and the abbe number of the 3rd lens 530 is V3, and its relation is as follows:
V1-V2=34.5；
|V2-V3|=2.4。
In embodiment 5, thing side surface 511 radius-of-curvature of first lens 510 are R1, as side surface 512 radius-of-curvature, are R2, thing side surface 521 radius-of-curvature of the second lens 520 are R3, as side surface 522 radius-of-curvature, are R4, thing side surface 551 radius-of-curvature of the 5th lens 550 are R9, as side surface 552 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.04；
R4/R3=-0.03；
R10/R9=-0.63；
(R9+R10)/(R9-R10)=0.23。
In embodiment 5, the focal length of first lens 510 is f1, and the focal length of the 4th lens 540 is f4, and the focal length of the 5th lens 550 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.46；
f/f4=1.63；
f/f5=-2.01；
f/f4-f/f1=0.17。
In embodiment 5, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 500 centers, the distance of its vertical optical axis of intersection point as side surface 552 of light and the 5th lens 550 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 500 centers, the distance of its vertical optical axis of intersection point as side surface 552 of light and the 5th lens 550 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 5, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 560, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.71；
Yc2/ImgH=0.73。
In embodiment 5, aperture 500 is SL to the distance of imaging surface 560 on optical axis, and the thing side surface 511 of first lens 510 is TTL to the distance of imaging surface 560 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.97;
TTL/ImgH=1.52。
Coordinate with reference to table nine and table ten, wherein table nine is the structured data that Figure 11 embodiment 5 is detailed again, and table ten is the aspherical surface data in embodiment 5.
Figure GDA00002308692900241
Table nine
Asphericity coefficient
Table ten
In table nine, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table ten, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Figure 13 and Figure 14, wherein Figure 13 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 6, and Figure 14 is sequentially from left to right spherical aberration, the astigmatism of Figure 13 optical image-taking lens combination and distorts curve map.As shown in Figure 13, the optical image-taking lens combination of embodiment 6 extremely comprises aperture 600, first lens 610, the second lens 620, the 3rd lens 630, the 4th lens 640, the 5th lens 650, infrared filter (IR Filter) 670 and imaging surface 660 as side by thing side.
Further illustrate, the material of first lens 610 is plastics, and it has positive refracting power, and the thing side surface 611 of first lens 610 and be all convex surface as side surface 612, and is all aspheric surface.
The material of the second lens 620 is plastics, and it has negative refracting power, and the thing side surface 621 of the second lens 620 and be all concave surface as side surface 622, and is all aspheric surface.
The material of the 3rd lens 630 is plastics, and it has positive refracting power, and the thing side surface 631 of the 3rd lens 630 is convex surface, as side surface 632, is concave surface, and is all aspheric surface.
The material of the 4th lens 640 is plastics, and it has positive refracting power, and the thing side surface 641 of the 4th lens 640 is concave surface, as side surface 642, is convex surface, and is all aspheric surface.
The material of the 5th lens 650 is plastics, and it has negative refracting power, and the thing side surface 651 of the 5th lens 650 and be all concave surface as side surface 652, and is all aspheric surface.In addition, the thing side surface 651 of the 5th lens 650 with as having at least a surface to be provided with at least one point of inflexion in side surface 652.
The material of infrared filter 670 is glass, and it is arranged between the 5th lens 650 and imaging surface 660, does not affect the focal length of optical image-taking lens combination.
In embodiment 6, aspheric curvilinear equation formula represents as the form of embodiment 1.
In embodiment 6, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.90mm；
Fno=2.90；
HFOV=37.3 degree.
In embodiment 6, the abbe number of first lens 610 is V1, and the abbe number of the second lens 620 is V2, and the abbe number of the 3rd lens 630 is V3, and its relation is as follows:
V1-V2=35.1；
|V2-V3|=2.4。
In embodiment 6, thing side surface 611 radius-of-curvature of first lens 610 are R1, as side surface 612 radius-of-curvature, are R2, thing side surface 621 radius-of-curvature of the second lens 620 are R3, as side surface 622 radius-of-curvature, are R4, thing side surface 651 radius-of-curvature of the 5th lens 650 are R9, as side surface 652 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.07；
R4/R3=-0.27；
R10/R9=-0.58；
(R9+R10)/(R9-R10)=0.27。
In embodiment 6, the focal length of first lens 610 is f1, and the focal length of the 4th lens 640 is f4, and the focal length of the 5th lens 650 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.44；
f/f4=1.56；
f/f5=-1.97；
f/f4-f/f1=0.12。
In embodiment 6, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 600 centers, the distance of its vertical optical axis of intersection point as side surface 652 of light and the 5th lens 650 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 600 centers, the distance of its vertical optical axis of intersection point as side surface 652 of light and the 5th lens 650 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 6, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 660, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.72；
Yc2/ImgH=0.75。
In embodiment 6, aperture 600 is SL to the distance of imaging surface 660 on optical axis, and the thing side surface 611 of first lens 610 is TTL to the distance of imaging surface 660 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.97;
TTL/ImgH=1.50。
Coordinate with reference to table ten one and table ten two, wherein table ten one is the structured data that Figure 13 embodiment 6 is detailed again, and table ten two is the aspherical surface data in embodiment 6.
Figure GDA00002308692900271
Table ten one
Asphericity coefficient
Figure GDA00002308692900272
Table ten two
In table ten one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table ten two, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Figure 15 and Figure 16, wherein Figure 15 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 7, and Figure 16 is sequentially from left to right spherical aberration, the astigmatism of Figure 15 optical image-taking lens combination and distorts curve map.As shown in Figure 15, the optical image-taking lens combination of embodiment 7 extremely comprises first lens 710, aperture 700, the second lens 720, the 3rd lens 730, the 4th lens 740, the 5th lens 750, infrared filter (IR Filter) 770 and imaging surface 760 as side by thing side.
Further illustrate, the material of first lens 710 is plastics, and it has positive refracting power, and the thing side surface 711 of first lens 710 is convex surface, as side surface 712, is concave surface, and is all aspheric surface.
The material of the second lens 720 is plastics, and it has negative refracting power, and the thing side surface 721 of the second lens 720 is convex surface, as side surface 722, is concave surface, and is all aspheric surface.
The material of the 3rd lens 730 is plastics, and it has negative refracting power, and the thing side surface 731 of the 3rd lens 730 and be all concave surface as side surface 732, and is all aspheric surface.
The material of the 4th lens 740 is plastics, and it has positive refracting power, and the thing side surface 741 of the 4th lens 740 is concave surface, as side surface 742, is convex surface, and is all aspheric surface.
The material of the 5th lens 750 is plastics, and it has negative refracting power, and the thing side surface 751 of the 5th lens 750 and be all concave surface as side surface 752, and is all aspheric surface.In addition, the thing side surface 751 of the 5th lens 750 with as having at least a surface to be provided with at least one point of inflexion in side surface 752.
The material of infrared filter 770 is glass, and it is arranged between the 5th lens 750 and imaging surface 760, does not affect the focal length of optical image-taking lens combination.
In embodiment 7, aspheric curvilinear equation formula represents as the form of embodiment 1.
In embodiment 7, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f＝3.45mm；
Fno=2.90；
HFOV=40.8 degree.
In embodiment 7, the abbe number of first lens 710 is V1, and the abbe number of the second lens 720 is V2, and the abbe number of the 3rd lens 730 is V3, and its relation is as follows:
V1-V2=34.4；
|V2-V3|=0.0。
In embodiment 7, thing side surface 711 radius-of-curvature of first lens 710 are R1, as side surface 712 radius-of-curvature, are R2, thing side surface 721 radius-of-curvature of the second lens 720 are R3, as side surface 722 radius-of-curvature, are R4, thing side surface 751 radius-of-curvature of the 5th lens 750 are R9, as side surface 752 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.07；
R4/R3=0.24；
R10/R9=-0.22；
(R9+R10)/(R9-R10)=0.63。
In embodiment 7, the focal length of first lens 710 is f1, and the focal length of the 4th lens 740 is f4, and the focal length of the 5th lens 750 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.16；
f/f4=2.07；
f/f5=-2.14；
f/f4-f/f1=0.91。
In embodiment 7, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 700 centers, the distance of its vertical optical axis of intersection point as side surface 752 of light and the 5th lens 750 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 700 centers, the distance of its vertical optical axis of intersection point as side surface 752 of light and the 5th lens 750 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 7, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 760, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.64；
Yc2/ImgH=0.66。
In embodiment 7, aperture 700 is SL to the distance of imaging surface 760 on optical axis, and the thing side surface 711 of first lens 710 is TTL to the distance of imaging surface 760 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.88;
TTL/ImgH=1.43。
Coordinate with reference to table ten three and table ten four, wherein table ten three is the structured data that Figure 15 embodiment 7 is detailed again, and table ten four is the aspherical surface data in embodiment 7.
Figure GDA00002308692900301
Table ten three
Asphericity coefficient
Figure GDA00002308692900302
Table ten four
In table ten three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table ten four, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Please refer to Figure 17 and Figure 18, wherein Figure 17 illustrates the schematic diagram according to a kind of optical image-taking lens combination of the embodiment of the present invention 8, and Figure 18 is sequentially from left to right spherical aberration, the astigmatism of Figure 17 optical image-taking lens combination and distorts curve map.As shown in Figure 17, the optical image-taking lens combination of embodiment 8 extremely comprises first lens 810, the second lens 820, aperture 800, the 3rd lens 830, the 4th lens 840, the 5th lens 850, infrared filter (IR Filter) 870 and imaging surface 860 as side by thing side.
Further illustrate, the material of first lens 810 is plastics, and it has positive refracting power, and the thing side surface 811 of first lens 810 and be all convex surface as side surface 812, and is all aspheric surface.
The material of the second lens 820 is plastics, and it has negative refracting power, and the thing side surface 821 of the second lens 820 and be all concave surface as side surface 822, and is all aspheric surface.
The material of the 3rd lens 830 is plastics, and it has negative refracting power, and the thing side surface 831 of the 3rd lens 830 is convex surface, as side surface 832, is concave surface, and is all aspheric surface.
The material of the 4th lens 840 is plastics, and it has positive refracting power, and the thing side surface 841 of the 4th lens 840 is concave surface, as side surface 842, is convex surface, and is all aspheric surface.
The material of the 5th lens 850 is plastics, and it has negative refracting power, and the thing side surface 851 of the 5th lens 850 and be all concave surface as side surface 852, and is all aspheric surface.In addition, the thing side surface 851 of the 5th lens 850 with as having at least a surface to be provided with at least one point of inflexion in side surface 852.
The material of infrared filter 870 is glass, and it is arranged between the 5th lens 850 and imaging surface 860, does not affect the focal length of optical image-taking lens combination.
In embodiment 8, aspheric curvilinear equation formula represents as the form of embodiment 1.
In embodiment 8, the focal length of whole optical image-taking lens combination is f, and the f-number of whole optical image-taking lens combination (f-number) is Fno, and in whole optical image-taking lens combination, half of maximum visual angle is HFOV, and its relational expression is:
f=3.61mm；
Fno=2.50；
HFOV=38.6 degree.
In embodiment 8, the abbe number of first lens 810 is V1, and the abbe number of the second lens 820 is V2, and the abbe number of the 3rd lens 830 is V3, and its relation is as follows:
V1-V2=32.5；
|V2-V3|=0.0。
In embodiment 8, thing side surface 811 radius-of-curvature of first lens 810 are R1, as side surface 812 radius-of-curvature, are R2, thing side surface 821 radius-of-curvature of the second lens 820 are R3, as side surface 822 radius-of-curvature, are R4, thing side surface 851 radius-of-curvature of the 5th lens 850 are R9, as side surface 852 radius-of-curvature, are R10, and its relation is as follows:
|R1/R2|=0.17；
R4/R3=-2.00；
R10/R9=-0.05；
(R9+R10)/(R9-R10)=0.90。
In embodiment 8, the focal length of first lens 810 is f1, and the focal length of the 4th lens 840 is f4, and the focal length of the 5th lens 850 is f5, and the relation of the focal distance f of itself and whole optical image-taking lens combination is respectively:
f/f1=1.21；
f/f4=1.98；
f/f5=-1.97；
f/f4-f/f1=0.77。
In embodiment 8, when the relative optical axis angle θ 1 of angle of incidence of light is 36 degree and passes through aperture 800 centers, the distance of its vertical optical axis of intersection point as side surface 852 of light and the 5th lens 850 is Yc1, and when the relative optical axis angle θ 2 of angle of incidence of light be 37 degree and by aperture 800 centers, the distance of its vertical optical axis of intersection point as side surface 852 of light and the 5th lens 850 is that Yc2 (please refer in the schematic diagram of Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, the present embodiment illustrates schematic diagram no longer in addition).In addition, in embodiment 8, optical shooting lens group is separately provided with a sense electronics optical assembly in imaging surface 860, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it is as follows with the relation of Yc1 and Yc2 respectively:
Yc1/ImgH=0.65；
Yc2/ImgH=0.68。
In embodiment 8, aperture 800 is SL to the distance of imaging surface 860 on optical axis, and the thing side surface 811 of first lens 810 is TTL to the distance of imaging surface 860 on optical axis, and half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relation is as follows:
SL/TTL=0.77；
TTL/ImgH=1.60。
Coordinate with reference to table ten five and table ten six, wherein table ten five is the structured data that Figure 17 embodiment 8 is detailed again, and table ten six is the aspherical surface data in embodiment 8.
Figure GDA00002308692900331
Table ten five
Asphericity coefficient
Figure GDA00002308692900332
Table ten six
In table ten five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 sequentially represents the surface to picture side by thing side, and in table ten six, k represents the conical surface coefficient in aspheric curve equation, and A1-A14 represents each surperficial 1-14 rank asphericity coefficient.
Table one to table ten six is depicted as the different numerical value change tables of optical image-taking lens combination embodiment of the present invention, all true gained of testing of numerical value change of right each embodiment of the present invention, even if use different numerical value, the product of same structure must belong to protection category of the present invention.Seven, table ten is the numeric data of the corresponding correlated condition formula of the present invention of each embodiment.
Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Embodiment 7 Embodiment 8
f 3.83 3.83 4.00 3.90 3.94 3.90 3.45 3.61
Fno 2.70 2.70 2.85 2.85 2.90 2.90 2.90 2.50
HFOV 37.6 37.4 37.0 37.2 37.3 37.3 40.8 38.6
V1-V2 32.5 34.4 32.1 32.1 34.5 35.1 34.4 32.5
|V2-V3| 0.0 2.0 0.0 0.0 2.4 2.4 0.0 0.0
|R1/R2| 0.10 0.02 0.07 0.02 0.04 0.07 0.07 0.17
R4/R3 -0.65 -0.14 0.05 -0.08 -0.03 -0.27 0.24 -2.00
R10/R9 -0.36 -0.27 -0.72 -0.74 -0.63 -0.58 -0.22 -0.05
(R9+R10)/(R9-R10) 0.47 0.57 0.16 0.15 0.23 0.27 0.63 0.90
f/f1 1.44 1.30 1.44 1.51 1.46 1.44 1.16 1.21
f/f4 2.15 2.14 2.22 2.02 1.63 1.56 2.07 1.98
f/f5 -2.27 -2.23 -2.22 -2.17 -2.01 -1.97 -2.14 -1.97
f/f4-f/f1 0.71 0.84 0.78 0.51 0.17 0.12 0.91 0.77
Yc1/ImgH 0.70 0.68 0.68 0.70 0.71 0.72 0.64 0.65
Yc2/ImgH 0.73 0.71 0.71 0.72 0.73 0.75 0.66 0.68
SL/TTL 0.86 0.87 0.88 0.97 0.97 0.97 0.88 0.77
TTL/ImgH 1.54 1.55 1.57 1.52 1.52 1.50 1.43 1.60
Table ten seven
Although the present invention discloses as above with embodiment; so it is not in order to limit the present invention; anyly be familiar with this skill person; without departing from the spirit and scope of the present invention; when being used for a variety of modifications and variations, so the scope that protection scope of the present invention ought define depending on appending claims is as the criterion.

Claims (25)

1. an optical image-taking lens combination, is characterized in that, by thing side, extremely as side, is sequentially comprised:
One first lens, has positive refracting power, and its thing side surface is convex surface;
One second lens, have negative refracting power;
One the 3rd lens;
One the 4th lens; And
One the 5th lens, its thing side surface with as having at least a surface to be provided with at least one point of inflexion in side surface, it is plastic material, and it is concave surface as side surface;
Wherein, the lens in this optical image-taking lens combination with refracting power are five, the focal length of this optical image-taking lens combination is f, the focal length of this first lens is f1, the abbe number of these the second lens is V2, the abbe number of the 3rd lens is V3, and this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and when the relative optical axis angle θ 1 of angle of incidence of light be 36 degree and by the center of this aperture, the distance of its vertical optical axis of intersection point as side surface of light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, it meets following relationship:
0.7<f/f1<2.0；
|V2-V3|<10；
0.7<SL/TTL<1.2; And
0.3<Yc1/ImgH<0.9。
2. optical image-taking lens combination according to claim 1, is characterized in that, the 4th lens are plastic material, and its thing side surface is concave surface, as side surface, is convex surface, and its thing side surface and be all aspheric surface as side surface.
3. optical image-taking lens combination according to claim 2, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of this first lens is f1, and the focal length of the 4th lens is f4, and meets following relationship:
0.0<f/f4-f/f1<1.5。
4. optical image-taking lens combination according to claim 3, is characterized in that, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, is R10, and it meets following relationship:
-5<R10/R9<5。
5. optical image-taking lens combination according to claim 4, is characterized in that, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, is R10, and it meets following relationship:
-1.2<R10/R9<0。
6. optical image-taking lens combination according to claim 5, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of the 5th lens is f5, and it meets following relationship:
-3.2<f/f5<-1.6。
7. optical image-taking lens combination according to claim 4, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of this first lens is f1, and it meets following relationship:
1.0<f/f1<1.8。
8. optical image-taking lens combination according to claim 7, is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and it meets following relationship:
|R1/R2|<0.3。
9. optical image-taking lens combination according to claim 7, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of the 4th lens is f4, and it meets following relationship:
1.3<f/f4<2.5。
10. optical image-taking lens combination according to claim 9, it is characterized in that, when the relative optical axis angle θ 2 of angle of incidence of light is 37 degree and passes through this aperture center, the distance of its vertical optical axis of intersection point as side surface of light and the 5th lens is Yc2, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
0.5<Yc2/ImgH<0.9。
11. optical image-taking lens combination according to claim 3, is characterized in that, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, and it meets following relationship:
28<V1-V2<45。
12. optical image-taking lens combination according to claim 11, is characterized in that, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, is R10, and it meets following relationship:
0.0<(R9+R10)/(R9-R10)<1.0。
13. optical image-taking lens combination according to claim 3, is characterized in that, the thing side surface radius-of-curvature of these the second lens is R3, as side surface radius-of-curvature, is R4, and it meets following relationship:
-1<R4/R3<0。
14. optical image-taking lens combination according to claim 1, it is characterized in that, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
TTL/ImgH<1.75。
15. 1 kinds of optical image-taking lens combination, is characterized in that, by thing side, extremely as side, are sequentially comprised:
One first lens, has positive refracting power, and its thing side surface is convex surface;
One second lens, have negative refracting power;
One the 3rd lens, have negative refracting power;
One the 4th lens have positive refracting power, and have at least one aspheric surface;
One the 5th lens, have negative refracting power, and have at least one aspheric surface, and it is concave surface as side surface; And
Wherein, the lens in this optical image-taking lens combination with refracting power are five, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, be R10, and this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and when the relative optical axis angle θ 1 of angle of incidence of light be 36 degree and by the center of this aperture, the distance of its vertical optical axis of intersection point as side surface of light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, it meets following relationship:
-5<R10/R9<5；
0.7<SL/TTL<1.2; And
0.3<Yc1/ImgH<0.9。
16. optical image-taking lens combination according to claim 15, it is characterized in that, the thing side surface of the 4th lens is concave surface, as side surface, is convex surface, and the thing side surface of the 5th lens is concave surface, and its thing side surface with as having at least a surface to be provided with at least one point of inflexion in side surface.
17. optical image-taking lens combination according to claim 16, it is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and the focal length of this optical image-taking lens combination is f, the focal length of the 5th lens is f5, and it meets following relationship:
| R1/R2|<0.3; And
-3.2<f/f5<-1.6。
18. optical image-taking lens combination according to claim 16, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of this first lens is f1, and the focal length of the 4th lens is f4, and it meets following relationship:
0.0<f/f4-f/f1<1.5。
19. optical image-taking lens combination according to claim 15, is characterized in that, the thing side surface radius-of-curvature of these the second lens is R3, as side surface radius-of-curvature, is R4, and it meets following relationship:
-1<R4/R3<0。
20. optical image-taking lens combination according to claim 16, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of the 4th lens is f4, and it meets following relationship:
1.3<f/f4<2.5。
21. 1 kinds of optical image-taking lens combination, is characterized in that, by thing side, extremely as side, are sequentially comprised:
One first lens, has positive refracting power, and its thing side surface is convex surface;
One second lens;
One the 3rd lens, have negative refracting power;
One the 4th lens, have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface, and it has at least one aspheric surface; And
One the 5th lens, have negative refracting power, its thing side surface with as having at least a surface to be provided with at least one point of inflexion in side surface, and be concave surface as side surface;
Wherein, the lens in this optical image-taking lens combination with refracting power are five, FOV is the maximum visual angle of this optical image-taking lens combination, the thing side surface radius-of-curvature of the 5th lens is R9, as side surface radius-of-curvature, be R10, and this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, and when the relative optical axis angle θ 1 of angle of incidence of light be 36 degree and by the center of this aperture, the distance of its vertical optical axis of intersection point as side surface of light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, it meets following relationship:
FOV>72；
The <1.7 of 0< (R9+R10)/(R9-R10); And
0.3<Yc1/ImgH<0.9。
22. optical image-taking lens combination according to claim 21, is characterized in that, the material of the 5th lens is plastics, and its thing side surface radius-of-curvature is R9, as side surface radius-of-curvature, is R10, and meets following relationship:
-1<R10/R9<0。
23. optical image-taking lens combination according to claim 22, is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, and it meets following relationship:
-2.8<f/f5<-1.6; And
1.3<f/f4<2.5。
24. optical image-taking lens combination according to claim 22, it is characterized in that, this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, when the relative optical axis angle θ 2 of angle of incidence of light is 37 degree and passes through the center of this aperture, the distance of its vertical optical axis of intersection point as side surface of light and the 5th lens is Yc2, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and it meets following relationship:
0.5<Yc2/ImgH<0.9。
25. optical image-taking lens combination according to claim 21, is characterized in that, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, and it meets following relationship:
28<V1-V2<42。
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