CN102540405A - Optical imaging lens group - Google Patents

Optical imaging lens group Download PDF

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Publication number
CN102540405A
CN102540405A CN2010105996608A CN201010599660A CN102540405A CN 102540405 A CN102540405 A CN 102540405A CN 2010105996608 A CN2010105996608 A CN 2010105996608A CN 201010599660 A CN201010599660 A CN 201010599660A CN 102540405 A CN102540405 A CN 102540405A
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Prior art keywords
lens
optical image
taking lens
lens combination
thing side
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CN102540405B (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

The 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 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 phtographic lens day by day improves.The photosensory assembly of general phtographic lens is nothing more than being photosensitive coupling component (Charge Coupled Device; And progressing greatly CCD) or two kinds of complementary matal-oxide semiconductor assemblies (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), along with semiconductor process techniques; Make the Pixel Dimensions of photosensory assembly dwindle; The miniaturization phtographic lens is the development 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 phtographic lens on the portable electronic product; Like United States Patent (USP) the 7th; Shown in 355, No. 801, it is main adopting the four-piece type lens arrangement more; But because intelligent mobile phone (Smart Phone) and PDA high standard mobile devices such as (Personal Digital Assistant) is in vogue; Drive miniaturization phtographic lens riseing rapidly on pixel and image quality, known four-piece type lens combination can't satisfy 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 being applicable on frivolous, the portable electronic product, image quality is good and be unlikely to the optical image-taking lens combination that makes the camera lens total length long.
Summary of the invention
The object of the present invention is to provide a kind of optical image-taking lens combination, be applicable to that image quality is good and be unlikely to make the camera lens total length long on frivolous, the portable electronic product.
According to the present invention a kind of optical image-taking lens combination is provided, extremely comprises one first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens in regular turn 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.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 the 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, and the focal length of first lens is f1; And the optical image-taking lens combination comprises an aperture and a sense electronics optical assembly; The distance of aperture to imaging surface is SL, and the distance of thing side surface to imaging surface on optical axis of first lens is TTL, and when the relative optical axis angle θ 1 of an angle of incidence of light be 36.5 degree and the center through aperture; The distance as its vertical optical axis of intersection point of side surface of this light and the 5th lens is Yc1; And this sense electronics optical assembly is arranged at this imaging surface, and the half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.7＜f/f1＜2.0；
0.7＜SL/TTL＜1.2; And
0.3＜Yc1/ImgH＜0.9。
On the other hand, one optical image-taking lens combination is provided, extremely comprises one first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens in regular turn as side by the thing side according to the present invention.First lens have positive refracting power, and its thing side surface is a convex surface.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 a 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, be R10 as the side surface radius-of-curvature, and this optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, the distance of aperture to imaging surface is SL; The distance of thing side surface to imaging surface on optical axis of first lens is TTL; And when the relative optical axis angle θ 1 of an angle of incidence of light be 36.5 degree and the center through aperture, the distance as its vertical optical axis of intersection point of side surface of this light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface; The half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
-5＜R10/R9＜5；
0.7＜SL/TTL＜1.2; And
0.3＜Yc1/ImgH＜0.9。
Moreover, according to the present invention another optical image-taking lens combination is provided, extremely comprise one first lens, one second lens, one the 3rd lens, one the 4th lens and one the 5th lens in regular turn by the thing side as side.First lens have positive refracting power, and its thing side surface is a convex surface.The 4th lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side surface, and have 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 the 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, be R10 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
FOV＞72; And
0＜(R9+R10)/(R9-R10)＜1.7。
Wherein, first lens have positive refracting power, can provide the optical image-taking lens combination required part refracting power, help to shorten the total length of optical image-taking lens combination.Second lens have negative refracting power, but the aberration that its revisal first lens are produced, and revise the aberration that the optical image-taking lens combination is produced.The 4th lens have positive refracting power, and the positive refracting power that it can distribute first lens reduces the susceptibility of whole optics taking lens group.The 5th lens have negative refracting power, and the principal point that can make the optical image-taking lens combination is away from imaging surface, and the total length of favourable shortening optical image-taking lens combination is kept the camera lens miniaturization.
When f/f1 satisfies the above-mentioned relation formula, the optics total length of the whole optics taking lens of the refracting power may command of first lens group, and can avoid the high-order spherical aberration.When SL/TTL satisfied the above-mentioned relation formula, the optical image-taking lens combination can obtain good balance in heart characteristic far away and Wide-angle.
When Yc1/ImgH satisfies the above-mentioned relation formula, guarantee that the optical image-taking lens combination has enough field angle, and help suppressing from an axle field rays and be incident in the angle on the photosensory assembly, and the further aberration of modified off-axis visual field.
When R10/R9 satisfies the above-mentioned relation formula; Can revise the astigmatism (Astigmatism) and distortion of optical image-taking lens combination; Simultaneously can effectively reduce light and be incident in the angle on the sense electronics optical assembly, improve the sensitization susceptibility of sense electronics optical assembly, the minimizing system produces the possibility at dark angle.
When FOV satisfies the above-mentioned relation formula, the optical image-taking lens combination can provide with great visual angle, so that take the more image of broad range.And when (R9+R10)/when (R9-R10) satisfying above-listed relational expression, the principal point that can make the optical image-taking lens combination can shorten the optics total length of optical image-taking lens combination away from imaging surface, to keep 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.
Description of drawings
For letting above and other objects of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 1;
Fig. 2 is spherical aberration, the astigmatism of Fig. 1 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Fig. 3 is the light incident synoptic diagram that illustrates according to the optical image-taking lens combination of Fig. 1 embodiment;
Fig. 4 is another angle light incident synoptic diagram that illustrates according to the optical image-taking lens combination of Fig. 1 embodiment;
Fig. 5 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 2;
Fig. 6 is spherical aberration, the astigmatism of Fig. 5 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Fig. 7 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 3;
Fig. 8 is spherical aberration, the astigmatism of Fig. 7 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Fig. 9 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 4;
Figure 10 is spherical aberration, the astigmatism of Fig. 9 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Figure 11 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 5;
Figure 12 is spherical aberration, the astigmatism of Figure 11 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Figure 13 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 6;
Figure 14 is spherical aberration, the astigmatism of Figure 13 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Figure 15 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 7;
Figure 16 is spherical aberration, the astigmatism of Figure 15 optical image-taking lens combination from left to right in regular turn and distorts curve map;
Figure 17 is the synoptic diagram that illustrates according to a kind of optical image-taking lens combination of the embodiment of the invention 8;
Figure 18 is spherical aberration, the astigmatism of Figure 17 optical image-taking lens combination from left to right in regular turn 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
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 optics taking lens group
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 second lens
R4: the picture side surface radius-of-curvature of 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 second lens
V3: the abbe number of the 3rd lens
SL: the distance of aperture to imaging surface on optical axis
TTL: the distance of thing side surface to imaging surface on optical axis of first lens
ImgH: half of sense electronics optical assembly effective pixel area diagonal angle 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 36.5 degree and passes through the 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 37.2 degree and passes through the 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 present invention provides a kind of optical image-taking lens combination, and to comprising first lens, second lens, the 3rd lens, the 4th lens and the 5th lens in regular turn as side, other is provided with a sense electronics optical assembly in imaging surface by the thing side.
First lens have positive refracting power, and it can provide the optical image-taking lens combination required part refracting power, help to shorten the total length of optical image-taking lens combination.The thing side surface of first lens is a convex surface, then can be convex surface or concave surface as side surface.Be all convex surface (being biconvex lens) when the thing side surface of first lens and as side surface, can strengthen the configuration of the first lens refracting power, the total length of optical image-taking lens combination is shortened.And be convex surface, be concave surface (being crescent lens) as side surface when the thing side surface of first lens, can revise the astigmatism of optical image-taking lens combination.
Second lens have negative refracting power, and the aberration that can be effectively first lens of the positive refracting power of tool be produced is done revisal, and helps 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 optics taking lens group.The 4th lens can have aspheric surface, and its thing side surface can be concave surface, can be convex surface as side 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 had negative refracting power, the principal point that can make the optical image-taking lens combination to shorten the optics total length of optical image-taking lens combination, was kept the miniaturization of camera lens away from imaging surface.In addition, when the 5th lens have the point of inflexion, the light that can suppress effectively from the axle visual field is incident in the angle on the 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 satisfies the following relationship formula:
0.7＜f/f1＜2.0，
Whereby, the refracting power size configure of first lens is balance comparatively, the optics total length of may command optical image-taking lens combination, and avoid the high-order spherical aberration simultaneously.
In addition, the optical image-taking lens combination can further satisfy the following relationship formula:
1.0＜f/f1＜1.8。
Wherein, the optical image-taking lens combination is provided with an aperture in addition, and the distance of this aperture to imaging surface on optical axis is SL, and the distance of thing side surface to imaging surface on optical axis of first lens is TTL, and it satisfies the following relationship formula:
0.7＜SL/TTL＜1.2，
When this SL/TTL less than 0.7 the time, the light angle that is incident on the sense electronics optical assembly is excessive, be prone to cause photosensitive effect bad with the excessive shortcoming of aberration.Again when SL/TTL greater than 1.2 the time, can make the overall optical system total length long.Therefore, this optical imagery lens group can obtain the advantage of heart characteristic far away and be unlikely to make whole total length long satisfied 0.7＜SL/TTL＜1.2 o'clock.
When the relative optical axis angle θ 1 of an angle of incidence of light is 36.5 degree and the center through aperture; The distance as its vertical optical axis of intersection point of side surface of this light and the 5th lens is Yc1; The half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.3＜Yc1/ImgH＜0.9，
Whereby, can guarantee that the optical image-taking lens combination has enough field angle, and help suppressing from an axle field rays and be incident in the angle on the photosensory assembly, and the further aberration of modified off-axis visual field.
The focal distance f 1 of the focal distance f of optical image-taking lens combination, first lens, and the focal distance f 4 of the 4th lens, it satisfies the following relationship formula:
0.0＜f/f4-f/f1＜1.5，
Whereby, can make the refracting power of the 4th lens and first lens dispose 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 the side surface radius-of-curvature that it satisfies the following relationship formula:
-5＜R10/R9＜5，
Whereby, can revise the astigmatism and the distortion of optical image-taking lens combination, can reduce light simultaneously and be incident in the angle on the sense electronics optical assembly, improve the sensitization susceptibility of sense electronics optical assembly, reduce the optical image-taking lens combination and produce the possibility at dark angle.
In addition, the optical image-taking lens combination can further satisfy the following relationship formula:
-1.2＜R10/R9＜0。
Moreover the optical image-taking lens combination more can further satisfy the following relationship formula:
-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 satisfies the following relationship formula:
-3.2＜f/f5＜-1.6，
Whereby, but each item aberration that the 5th lens balance and correction optical image-taking lens combination are produced, and then make the optical image-taking lens combination obtain higher image quality.
In addition, the optical image-taking lens combination can further satisfy the following relationship formula:
-2.8＜f/f5＜-1.6。
When the thing side surface radius-of-curvature of first lens is R1, is R2 as the side surface radius-of-curvature that it satisfies the following relationship formula:
|R1/R2|＜0.3，
Whereby, but the revisal sphere is received poor (Spherical Aberration), more can shorten the total length of first lens to camera lens, and then make the miniaturization of camera lens.
The abbe number of second lens is V2, and the abbe number of the 3rd lens is V3, and it satisfies the following relationship formula:
|V2-V3|＜10，
Whereby, can promote the ability of optical image-taking lens combination 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 satisfies the following relationship formula:
1.3＜f/f4＜2.5，
Control the refracting power size configure of the 4th lens whereby, 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 37.2 degree and passes through the aperture center; The distance as its vertical optical axis of intersection point of side surface of this light and the 5th lens is Yc2; The half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.5＜Yc2/ImgH＜0.9。
When the abbe number of first lens is V1, the abbe number of second lens is V2, and it satisfies the following relationship formula:
28＜V1-V2＜45，
Whereby, can revise aberration in the optical image-taking lens combination.
In addition, the optical image-taking lens combination can further satisfy the following relationship formula:
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 satisfies the following relationship formula:
0＜(R9+R10)/(R9-R10)＜1.7，
Whereby, the principal point that can make the optical image-taking lens combination to shorten the optics total length of optical image-taking lens combination, is kept the miniaturization of camera lens away from imaging surface.
In addition, the optical image-taking lens combination can further satisfy the following relationship formula:
0＜(R9+R10)/(R9-R10)＜1.0。
When the thing side surface radius-of-curvature of second lens is R3, is R4 as the side surface radius-of-curvature that it satisfies the following relationship formula:
-1＜R4/R3＜0，
Whereby, can do revisal to the aberration that first lens are produced, and the refracting power of balance second lens, avoid producing too much higher order aberratons.
The distance of thing side surface to imaging surface on optical axis of first lens is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
TTL/ImgH＜1.75，
Whereby, can keep the miniaturization of optical image-taking lens combination, to be equipped on the frivolous portable electronic product.
The maximum visual angle of optical image-taking lens combination is FOV, and it satisfies 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 conjunction with figs. and specify.
Please with reference to Fig. 1 and Fig. 2, wherein Fig. 1 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 1, and Fig. 2 is spherical aberration, the astigmatism of Fig. 1 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Fig. 1, the optical image-taking lens combination of embodiment 1 by the thing side to comprise first lens 110, aperture 100, 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.
Further specify, 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 second lens 120 is plastics, and it has negative refracting power, and the thing side surface 121 of 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, is convex surface as side surface 132, 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, is convex surface as side surface 142, 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 the side surface 152.
The material of infrared filter 170 is a glass, and it is arranged between the 5th lens 150 and the imaging surface 160, does not influence the focal length of optical image-taking lens combination.
The aspheric curvilinear equation formula of above-mentioned each lens is represented as follows:
X ( Y ) = ( Y 2 / R ) / ( 1 + sqrt ( 1 - ( 1 + k ) × ( Y / R ) 2 ) ) + Σ i ( Ai ) × ( 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 image-taking lens combination of embodiment 1, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.83mm；
Fno＝2.70；
The HFOV=37.6 degree.
Among the embodiment 1, the abbe number of first lens 110 is V1, and the abbe number of second lens 120 is V2, and the abbe number of the 3rd lens 130 is V3, and it concerns as follows:
V1-V2＝32.5；
|V2-V3|＝0.0。
Among the 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 151 radius-of-curvature of the 5th lens 150 are R9, be R10 as side surface 152 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.10；
R4/R3＝-0.65；
R10/R9＝-0.36；
(R9+R10)/(R9-R10)＝0.47。
Among the 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 optics taking lens group 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 the light incident synoptic diagram according to the optical image-taking lens combination of Fig. 1 embodiment respectively.As shown in Figure 3, when the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and through aperture 100 centers, the distance as its vertical optical axis of intersection point of side surface 152 of light and the 5th lens 150 is Yc1.Again by shown in Figure 4, when the relative optical axis angle θ 2 of angle of incidence of light is 37.2 degree and through aperture 100 centers, the distance as its vertical optical axis of intersection point of side surface 152 of light and the 5th lens 150 is Yc2.In addition, in embodiment 1, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 160, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.70；
Yc2/ImgH＝0.73。
Among the embodiment 1, the distance of aperture 100 to imaging surface 160 on optical axis is SL, and the distance of thing side surface 111 to imaging surface 160 on optical axis of first lens 110 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.86；
TTL/ImgH＝1.54。
Cooperate with reference to table one and table two, wherein table one is the detailed structured data of Fig. 1 embodiment 1 again, and table two is the aspherical surface data among the embodiment 1.
Figure BSA00000395166600121
Table one
Asphericity coefficient
Figure BSA00000395166600122
Table two
In the table one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes that in regular turn and in the table two, k representes the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Fig. 5 and 6, wherein Fig. 5 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 2, and Fig. 6 is spherical aberration, the astigmatism of Fig. 5 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Fig. 5, the optical image-taking lens combination of embodiment 2 by the thing side to comprise first lens 210, aperture 200, 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.
Further specify, 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 second lens 220 is plastics, and it has negative refracting power, and the thing side surface 221 of 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, is convex surface as side surface 242, 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 the side surface 252.
The material of infrared filter 270 is a glass, and it is arranged between the 5th lens 250 and the imaging surface 260, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 2.
In the optical image-taking lens combination of embodiment 2, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.83mm；
Fno＝2.70；
The HFOV=37.4 degree.
Among the embodiment 2, the abbe number of first lens 210 is V1, and the abbe number of second lens 220 is V2, and the abbe number of the 3rd lens 230 is V3, and it concerns as follows:
V1-V2＝34.4；
|V2-V3|＝2.0。
Among the 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 251 radius-of-curvature of the 5th lens 250 are R9, be R10 as side surface 252 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.02；
R4/R3＝-0.14；
R10/R9＝-0.27；
(R9+R10)/(R9-R10)＝0.57。
Among the 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 optics taking lens group is respectively:
f/f1＝1.30；
f/f4＝2.14；
f/f5＝-2.23；
f/f4-f/f1＝0.84。
Among the embodiment 2; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 200 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 200 centers; The distance as its vertical optical axis of intersection point of side surface 252 of light and the 5th lens 250 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 2, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 260, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.68；
Yc2/ImgH＝0.71。
Among the embodiment 2, the distance of aperture 200 to imaging surface 260 on optical axis is SL, and the distance of thing side surface 211 to imaging surface 260 on optical axis of first lens 210 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.87；
TTL/ImgH＝1.55。
Cooperate with reference to table three and table four, wherein table three is the detailed structured data of Fig. 5 embodiment 2 again, and table four is the aspherical surface data among the embodiment 2.
Figure BSA00000395166600151
Table three
Asphericity coefficient
Figure BSA00000395166600152
Table four
In the table three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes that in regular turn and in the table four, k representes the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Fig. 7 and Fig. 8, wherein Fig. 7 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 3, and Fig. 8 is spherical aberration, the astigmatism of Fig. 7 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Fig. 7, the optical image-taking lens combination of embodiment 3 by the thing side to comprise first lens 310, aperture 300, 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.
Further specify, 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, is concave surface as side surface 312, and is all aspheric surface.
The material of second lens 320 is plastics, and it has negative refracting power, and the thing side surface 321 of second lens 320 is convex surface, is concave surface as side surface 322, 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, is convex surface as side surface 332, 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, is convex surface as side surface 342, 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 the side surface 352.
The material of infrared filter 370 is a glass, and it is arranged between the 5th lens 350 and the imaging surface 360, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 3.
In the optical image-taking lens combination of embodiment 3, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝4.00mm；
Fno＝2.85；
The HFOV=37.0 degree.
Among the embodiment 3, the abbe number of first lens 310 is V1, and the abbe number of second lens 320 is V2, and the abbe number of the 3rd lens 330 is V3, and it concerns as follows:
V1-V2＝32.1；
|V2-V3|＝0.0。
Among the 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 351 radius-of-curvature of the 5th lens 350 are R9, be R10 as side surface 352 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.07；
R4/R3＝0.05；
R10/R9＝-0.72；
(R9+R10)/(R9-R10)＝0.16。
Among the 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 optics taking lens group is respectively:
f/f1＝1.44；
f/f4＝2.22；
f/f5＝-2.22；
f/f4-f/f1＝0.78。
Among the embodiment 3; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 300 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 300 centers; The distance as its vertical optical axis of intersection point of side surface 352 of light and the 5th lens 350 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 3, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 360, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.68；
Yc2/ImgH＝0.71。
Among the embodiment 3, the distance of aperture 300 to imaging surface 360 on optical axis is SL, and the distance of thing side surface 311 to imaging surface 360 on optical axis of first lens 310 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.88；
TTL/ImgH＝1.57。
Cooperate with reference to table five and table six, wherein table five is the detailed structured data of Fig. 7 embodiment 3 again, and table six is the aspherical surface data among the embodiment 3.
Figure BSA00000395166600181
Table five
Asphericity coefficient
Figure BSA00000395166600182
Table six
In the table five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes that in regular turn and in the table six, k representes the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Fig. 9 and Figure 10, wherein Fig. 9 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 4, and Figure 10 is spherical aberration, the astigmatism of Fig. 9 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Fig. 9, the optical image-taking lens combination of embodiment 4 by the thing side to comprise aperture 400, first lens 410, 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.
Further specify, 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 second lens 420 is plastics, and it has negative refracting power, and the thing side surface 421 of 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, is convex surface as side surface 432, 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, is convex surface as side surface 442, 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 the side surface 452.
The material of infrared filter 470 is a glass, and it is arranged between the 5th lens 450 and the imaging surface 460, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 4.
Among the embodiment 4, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.90mm；
Fno＝2.85；
The HFOV=37.2 degree.
Among the embodiment 4, the abbe number of first lens 410 is V1, and the abbe number of second lens 420 is V2, and the abbe number of the 3rd lens 430 is V3, and it concerns as follows:
V1-V2＝32.1；
|V2-V3|＝0.0。
Among the 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 451 radius-of-curvature of the 5th lens 450 are R9, be R10 as side surface 452 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.02；
R4/R3＝-0.08；
R10/R9＝-0.74；
(R9+R10)/(R9-R10)＝0.15。
Among the 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 optics taking lens group is respectively:
f/f1＝1.51；
f/f4＝2.02；
f/f5＝-2.17；
f/f4-f/f1＝0.51。
Among the embodiment 4; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 400 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 400 centers; The distance as its vertical optical axis of intersection point of side surface 452 of light and the 5th lens 450 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 4, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 460, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.70；
Yc2/ImgH＝0.72。
Among the embodiment 4, the distance of aperture 400 to imaging surface 460 on optical axis is SL, and the distance of thing side surface 411 to imaging surface 460 on optical axis of first lens 410 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.97；
TTL/ImgH＝1.52。
Cooperate with reference to table seven and table eight, wherein table seven is the detailed structured data of Fig. 9 embodiment 4 again, and table eight is the aspherical surface data among the embodiment 4.
Table seven
Asphericity coefficient
Figure BSA00000395166600212
Table eight
In the table seven, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes that in regular turn and in the table eight, k representes the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Figure 11 and Figure 12, wherein Figure 11 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 5, and Figure 12 is spherical aberration, the astigmatism of Figure 11 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Figure 11, the optical image-taking lens combination of embodiment 5 by the thing side to comprise aperture 500, first lens 510, 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.
Further specify, 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 second lens 520 is plastics, and it has negative refracting power, and the thing side surface 521 of 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, is convex surface as side surface 532, 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, is convex surface as side surface 542, 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 the side surface 552.
The material of infrared filter 570 is a glass, and it is arranged between the 5th lens 550 and the imaging surface 560, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 5.
Among the embodiment 5, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.94mm；
Fno＝2.90；
The HFOV=37.3 degree.
Among the embodiment 5, the abbe number of first lens 510 is V1, and the abbe number of second lens 520 is V2, and the abbe number of the 3rd lens 530 is V3, and it concerns as follows:
V1-V2＝34.5；
|V2-V3|＝2.4。
Among the 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 551 radius-of-curvature of the 5th lens 550 are R9, be R10 as side surface 552 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.04；
R4/R3＝-0.03；
R10/R9＝-0.63；
(R9+R10)/(R9-R10)＝0.23。
Among the 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 optics taking lens group is respectively:
f/f1＝1.46；
f/f4＝1.63；
f/f5＝-2.01；
f/f4-f/f1＝0.17。
Among the embodiment 5; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 500 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 500 centers; The distance as its vertical optical axis of intersection point of side surface 552 of light and the 5th lens 550 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 5, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 560, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.71；
Yc2/ImgH＝0.73。
Among the embodiment 5, the distance of aperture 500 to imaging surface 560 on optical axis is SL, and the distance of thing side surface 511 to imaging surface 560 on optical axis of first lens 510 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.97；
TTL/ImgH＝1.52。
Cooperate with reference to table nine and table ten, wherein table nine is the detailed structured data of Figure 11 embodiment 5 again, and table ten is the aspherical surface data among the embodiment 5.
Table nine
Asphericity coefficient
Figure BSA00000395166600242
Table ten
In the table nine, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes that in regular turn and in the table ten, k representes the conical surface coefficient in the aspheric curve equation by the surface of thing side to the picture side, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Figure 13 and Figure 14, wherein Figure 13 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 6, and Figure 14 is spherical aberration, the astigmatism of Figure 13 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Figure 13, the optical image-taking lens combination of embodiment 6 by the thing side to comprise aperture 600, first lens 610, 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.
Further specify, 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 second lens 620 is plastics, and it has negative refracting power, and the thing side surface 621 of 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, is concave surface as side surface 632, 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, is convex surface as side surface 642, 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 the side surface 652.
The material of infrared filter 670 is a glass, and it is arranged between the 5th lens 650 and the imaging surface 660, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 6.
Among the embodiment 6, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.90mm；
Fno＝2.90；
The HFOV=37.3 degree.
Among the embodiment 6, the abbe number of first lens 610 is V1, and the abbe number of second lens 620 is V2, and the abbe number of the 3rd lens 630 is V3, and it concerns as follows:
V1-V2＝35.1；
|V2-V3|＝2.4。
Among the 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 651 radius-of-curvature of the 5th lens 650 are R9, be R10 as side surface 652 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.07；
R4/R3＝-0.27；
R10/R9＝-0.58；
(R9+R10)/(R9-R10)＝0.27。
Among the 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 optics taking lens group is respectively:
f/f1＝1.44；
f/f4＝1.56；
f/f5＝-1.97；
f/f4-f/f1＝0.12。
Among the embodiment 6; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 600 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 600 centers; The distance as its vertical optical axis of intersection point of side surface 652 of light and the 5th lens 650 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 6, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 660, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.72；
Yc2/ImgH＝0.75。
Among the embodiment 6, the distance of aperture 600 to imaging surface 660 on optical axis is SL, and the distance of thing side surface 611 to imaging surface 660 on optical axis of first lens 610 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.97；
TTL/ImgH＝1.50。
Cooperate with reference to table ten one and table ten two, wherein table ten one is the detailed structured data of Figure 13 embodiment 6 again, and table ten two is the aspherical surface data among the embodiment 6.
Figure BSA00000395166600271
Table ten one
Asphericity coefficient
Figure BSA00000395166600272
Table ten two
In the table ten one; The unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes by the surface of thing side to the picture side, and in the table ten two in regular turn; K representes the conical surface coefficient in the aspheric curve equation, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Figure 15 and Figure 16, wherein Figure 15 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 7, and Figure 16 is spherical aberration, the astigmatism of Figure 15 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Figure 15, the optical image-taking lens combination of embodiment 7 by the thing side to comprise first lens 710, aperture 700, 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.
Further specify, 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, is concave surface as side surface 712, and is all aspheric surface.
The material of second lens 720 is plastics, and it has negative refracting power, and the thing side surface 721 of second lens 720 is convex surface, is concave surface as side surface 722, 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, is convex surface as side surface 742, 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 the side surface 752.
The material of infrared filter 770 is a glass, and it is arranged between the 5th lens 750 and the imaging surface 760, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 7.
Among the embodiment 7, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.45mm；
Fno＝2.90；
The HFOV=40.8 degree.
Among the embodiment 7, the abbe number of first lens 710 is V1, and the abbe number of second lens 720 is V2, and the abbe number of the 3rd lens 730 is V3, and it concerns as follows:
V1-V2＝34.4；
|V2-V3|＝0.0。
Among the embodiment 7; Thing side surface 711 radius-of-curvature of first lens 710 are R1, be R2 as side surface 712 radius-of-curvature; Thing side surface 721 radius-of-curvature of second lens 720 are R3, be R4 as side surface 722 radius-of-curvature; Thing side surface 751 radius-of-curvature of the 5th lens 750 are R9, be R10 as side surface 752 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.07；
R4/R3＝0.24；
R10/R9＝-0.22；
(R9+R10)/(R9-R10)＝0.63。
Among the 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 optics taking lens group is respectively:
f/f1＝1.16；
f/f4＝2.07；
f/f5＝-2.14；
f/f4-f/f1＝0.91。
Among the embodiment 7; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 700 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 700 centers; The distance as its vertical optical axis of intersection point of side surface 752 of light and the 5th lens 750 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 7, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 760, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.64；
Yc2/ImgH＝0.66。
Among the embodiment 7, the distance of aperture 700 to imaging surface 760 on optical axis is SL, and the distance of thing side surface 711 to imaging surface 760 on optical axis of first lens 710 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.88；
TTL/ImgH＝1.43。
Cooperate with reference to table ten three and table ten four, wherein table ten three is the detailed structured data of Figure 15 embodiment 7 again, and table ten four is the aspherical surface data among the embodiment 7.
Figure BSA00000395166600301
Table ten three
Asphericity coefficient
Figure BSA00000395166600302
Table ten four
In the table ten three; The unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes by the surface of thing side to the picture side, and in the table ten four in regular turn; K representes the conical surface coefficient in the aspheric curve equation, and A1-A14 then representes each surperficial 1-14 rank asphericity coefficient.
Please with reference to Figure 17 and Figure 18, wherein Figure 17 illustrates the synoptic diagram according to a kind of optical image-taking lens combination of the embodiment of the invention 8, and Figure 18 is spherical aberration, the astigmatism of Figure 17 optical image-taking lens combination from left to right in regular turn and distorts curve map.Can know by Figure 17, the optical image-taking lens combination of embodiment 8 by the thing side to comprise first lens 810, 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.
Further specify, 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 second lens 820 is plastics, and it has negative refracting power, and the thing side surface 821 of 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, is concave surface as side surface 832, 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, is convex surface as side surface 842, 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 the side surface 852.
The material of infrared filter 870 is a glass, and it is arranged between the 5th lens 850 and the imaging surface 860, does not influence the focal length of optical image-taking lens combination.
Aspheric curvilinear equation formula is represented the form like embodiment 1 among the embodiment 8.
Among the embodiment 8, the focal length of whole optics taking lens group is f, and the f-number (f-number) of whole optics taking lens group is Fno, and the half the of maximum visual angle is HFOV in the whole optics taking lens group, and its relational expression is:
f＝3.61mm；
Fno＝2.50；
The HFOV=38.6 degree.
Among the embodiment 8, the abbe number of first lens 810 is V1, and the abbe number of second lens 820 is V2, and the abbe number of the 3rd lens 830 is V3, and it concerns as follows:
V1-V2＝32.5；
|V2-V3|＝0.0。
Among the embodiment 8; Thing side surface 811 radius-of-curvature of first lens 810 are R1, be R2 as side surface 812 radius-of-curvature; Thing side surface 821 radius-of-curvature of second lens 820 are R3, be R4 as side surface 822 radius-of-curvature; Thing side surface 851 radius-of-curvature of the 5th lens 850 are R9, be R10 as side surface 852 radius-of-curvature, it concerns as follows:
|R1/R2|＝0.17；
R4/R3＝-2.00；
R10/R9＝-0.05；
(R9+R10)/(R9-R10)＝0.90。
Among the 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 optics taking lens group is respectively:
f/f1＝1.21；
f/f4＝1.98；
f/f5＝-1.97；
f/f4-f/f1＝0.77。
Among the embodiment 8; When the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and passes through aperture 800 centers; The distance as its vertical optical axis of intersection point of 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 37.2 degree and through aperture 800 centers; The distance as its vertical optical axis of intersection point of side surface 852 of light and the 5th lens 850 is Yc2 (please in the synoptic diagram with reference to Fig. 3 and Fig. 4, the position of θ 1, θ 2, Yc1 and Yc2 representative, present embodiment illustrates synoptic diagram no longer in addition).In addition, in embodiment 8, the optical shooting lens group is provided with a sense electronics optical assembly in addition in imaging surface 860, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and its relation with Yc1 and Yc2 is following respectively:
Yc1/ImgH＝0.65；
Yc2/ImgH＝0.68。
Among the embodiment 8, the distance of aperture 800 to imaging surface 860 on optical axis is SL, and the distance of thing side surface 811 to imaging surface 860 on optical axis of first lens 810 is TTL, and the half the of sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it concerns as follows:
SL/TTL＝0.77；
TTL/ImgH＝1.60。
Cooperate with reference to table ten five and table ten six, wherein table ten five is the detailed structured data of Figure 17 embodiment 8 again, and table ten six is the aspherical surface data among the embodiment 8.
Figure BSA00000395166600331
Table ten five
Asphericity coefficient
Figure BSA00000395166600332
Table ten six
In the table ten five; The unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-14 representes by the surface of thing side to the picture side, and in the table ten six in regular turn; K representes the conical surface coefficient in the aspheric curve equation, and A1-A14 then representes 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, and the numerical value change of right each embodiment of the present invention is all true tests gained, even use different numerical value, the product of same structure must belong to protection category of the present invention.Seven in 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
Though the present invention discloses as above with embodiment; Right its is not in order to limit the present invention; Anyly be familiar with this art; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is as the criterion when looking the scope that appending claims defines.

Claims (26)

1. an optical image-taking 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;
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 the side surface, it is a plastic material, and it is a concave surface as side surface;
Wherein, the focal length of this optical image-taking lens combination is f, and the focal length of these first lens is f1; 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, and the distance of the thing side surface of these first lens to this imaging surface on optical axis is TTL, is 36.5 degree and the center of passing through this aperture and work as the relative optical axis angle θ 1 of angle of incidence of light; The distance as its vertical optical axis of intersection point of side surface of light and the 5th lens is Yc1; And this sense electronics optical assembly is arranged at this imaging surface, and the half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.7＜f/f1＜2.0；
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, be convex surface as side 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 these first lens is f1, and the focal length of the 4th lens is f4, and satisfies the following relationship formula:
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, be R10 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
-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, be R10 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
-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 satisfies the following relationship formula:
-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 these first lens is f1, and it satisfies the following relationship formula:
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 these first lens is R1, be R2 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
|R1/R2|＜0.3。
9. optical image-taking lens combination according to claim 2 is characterized in that, the abbe number of these second lens is V2, and the abbe number of the 3rd lens is V3, and it satisfies the following relationship formula:
|V2-V3|＜10。
10. 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 satisfies the following relationship formula:
1.3＜f/f4＜2.5。
11. optical image-taking lens combination according to claim 10; It is characterized in that; When the relative optical axis angle θ 2 of angle of incidence of light is 37.2 degree and passes through this aperture center; The distance as its vertical optical axis of intersection point of side surface of light and the 5th lens is Yc2, and the half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.5＜Yc2/ImgH＜0.9。
12. optical image-taking lens combination according to claim 3 is characterized in that, the abbe number of these first lens is V1, and the abbe number of these second lens is V2, and it satisfies the following relationship formula:
28＜V1-V2＜45。
13. optical image-taking lens combination according to claim 12 is characterized in that, the thing side surface radius-of-curvature of the 5th lens is R9, be R10 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
0.0＜(R9+R10)/(R9-R10)＜1.0。
14. optical image-taking lens combination according to claim 3 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:
-1＜R4/R3＜0。
15. optical image-taking lens combination according to claim 1; It is characterized in that the distance of the thing side surface of these first lens to this imaging surface on optical axis is TTL, the half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH;, it satisfies the following relationship formula:
TTL/ImgH＜1.75。
16. an optical image-taking 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;
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 a concave surface as side surface; And
Wherein, The thing side surface radius-of-curvature of the 5th lens is R9, be R10 as the side surface radius-of-curvature, 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 distance of the thing side surface of these first lens to this imaging surface on optical axis is TTL; And when the relative optical axis angle θ 1 of angle of incidence of light is 36.5 degree and the center through this aperture, the distance as its vertical optical axis of intersection point of side surface of light and the 5th lens is Yc1, and this sense electronics optical assembly is arranged at this imaging surface; The half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
-5＜R10/R9＜5；
0.7＜SL/TTL＜1.2; And
0.3＜Yc1/ImgH＜0.9。
17. optical image-taking lens combination according to claim 16; It is characterized in that; The thing side surface of the 4th lens is concave surface, be convex surface as side surface, and the thing side surface of the 5th lens is a 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 the side surface.
18. optical image-taking lens combination according to claim 17; It 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, the focal length of this optical image-taking lens combination is f; The focal length of the 5th lens is f5, and it satisfies the following relationship formula:
| R1/R2|＜0.3; And
-3.2＜f/f5＜-1.6。
19. optical image-taking lens combination according to claim 17 is characterized in that, the focal length of this optical image-taking lens combination is f, and the focal length of these first lens is f1, and the focal length of the 4th lens is f4, and it satisfies the following relationship formula:
0.0＜f/f4-f/f1＜1.5。
20. optical image-taking lens combination according to claim 16 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:
-1＜R4/R3＜0。
21. optical image-taking lens combination according to claim 17 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 satisfies the following relationship formula:
1.3＜f/f4＜2.5。
22. an optical image-taking 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;
One the 3rd lens;
One the 4th lens have positive refracting power, and its thing side surface is concave surface, be convex surface as side 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 the side surface, and be concave surface as side surface;
Wherein, FOV is the maximum visual angle of this optical image-taking lens combination, and the thing side surface radius-of-curvature of the 5th lens is R9, be R10 as the side surface radius-of-curvature, and it satisfies the following relationship formula:
FOV＞72; And
0＜(R9+R10)/(R9-R10)＜1.7。
23. optical image-taking lens combination according to claim 22 is characterized in that, the material of the 5th lens is plastics, and its thing side surface radius-of-curvature is R9, be R10 as the side surface radius-of-curvature, and satisfies the following relationship formula:
-1＜R10/R9＜0。
24. optical image-taking lens combination according to claim 23 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 satisfies the following relationship formula:
-2.8＜f/f5＜-1.6; And
1.3＜f/f4＜2.5。
25. optical image-taking lens combination according to claim 23; It is characterized in that; This optical image-taking lens combination comprises an aperture and a sense electronics optical assembly, and when the relative optical axis angle θ 2 of angle of incidence of light is 37.2 degree and the center through this aperture, the distance as its vertical optical axis of intersection point of side surface of light and the 5th lens is Yc2; The half the of this sense electronics optical assembly effective pixel area diagonal angle line length is ImgH, and it satisfies the following relationship formula:
0.5＜Yc2/ImgH＜0.9。
26. optical image-taking lens combination according to claim 22 is characterized in that, the abbe number of these first lens is V1, and the abbe number of these second lens is V2, and it satisfies the following relationship formula:
28＜V1-V2＜42。
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