CN102540418B - Optical photographic lens assembly - Google Patents
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- CN102540418B CN102540418B CN201010617463.4A CN201010617463A CN102540418B CN 102540418 B CN102540418 B CN 102540418B CN 201010617463 A CN201010617463 A CN 201010617463A CN 102540418 B CN102540418 B CN 102540418B
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Abstract
The invention provides an optical photographic lens assembly, which sequentially comprises a first lens, a second lens, a third lens and a fourth lens from an object side to an image side, wherein the first lens has positive refractive power, and an object side surface of the first lens is a convex surface; the second lens has negative refractive power; the third lens has positive refractive power, and an object side surface of the third lens is a concave surface, and an image side surface of the third lens is a convex surface; the fourth lens has negative refractive power, the object side surface of the fourth lens is a concave surface, at least one of the object side surface and the image side surface of the fourth lens is an aspheric surface; and four lens with refractive power are arranged in the optical photographic lens assembly. Through the configuration mode of the optical photographic lens assembly, aberration of the entire optical photographic lens assembly can be effectively corrected, the susceptibility of the entire optical photographic lens assembly can be reduced, and higher resolving power can be achieved.
Description
Technical field
The invention relates to a kind of optical photography lens combination, and particularly relevant for a kind of miniaturization optical photography 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 pick-up lens day by day improves.And the photosensory assembly of general pick-up lens is nothing more than being photosensitive coupling component (Charge Coupled Device, CCD) or two kinds of complementary matal-oxide semiconductor assemblies (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor).And due to progressing greatly of technology, the Pixel Dimensions of photosensory assembly is dwindled, miniaturization pick-up 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 pick-up lens on portable electronic product, many employing three-chip type lens arrangements are main, lens combination is born the second lens of refracting power and the 3rd lens of the positive refracting power of a tool by thing side to the first lens, the tool that are sequentially the positive refracting power of a tool as side, as United States Patent (USP) the 7th, shown in 145, No. 736.
But because the progress of technology and electronic product are under the trend of lightening development, photosensory assembly Pixel Dimensions constantly dwindles, system is improved more to the requirement of image quality, and known three-chip type lens combination cannot meet the more camera lens module of high-order.In addition, United States Patent (USP) the 7th, has disclosed a kind of four-piece type lens combination for 365, No. 920, and wherein first lens and the second lens are bonded to each other and become Doublet (doublet) with two sheet glass spherical mirrors, in order to color difference eliminating.But the method has its shortcoming, one, too much glass spherical mirror configuration makes degree of freedom in system not enough, causes the total length of system to be difficult for shortening; Its two, the bonding technique of glass mirror is difficult for, and easily forms the difficulty on manufacturing.
Summary of the invention
The object of the present invention is to provide a kind of optical photography lens combination, overcome the defect of prior art.
According to the invention provides an optical photography lens combination, by thing side, extremely as side, sequentially comprise a first lens, one second lens, one the 3rd lens and one the 4th lens.First lens has positive refracting power, and its thing side surface is convex surface.The second lens have negative refracting power.The 3rd lens have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface, and its thing side surface with as having one in side surface at least for aspheric surface.The 4th lens have negative refracting power, and its thing side surface is concave surface, and its thing side surface with as having one in side surface at least for aspheric surface.Wherein, in optical photography lens combination, the lens of tool refracting power are four, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of optical photography lens combination is f, the focal length of first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of the second lens is R3, as side surface radius-of-curvature, is R4, and optical photography lens combination comprises an aperture, the distance of aperture to imaging surface on optical axis is SL, to imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, meets following relationship:
-0.5＜R7/f＜0；
0.5＜f1/f3＜1.05；
The < 0 of-5.0 < (R3+R4)/(R3-R4); And
0.77＜SL/TTL＜1.1。
According to one embodiment of the invention, the wherein thing side surface of the 4th lens and be all aspheric surface as side surface, and this thing side surface and this is as having at least a surface to be provided with at least one point of inflexion in side surface.
According to one embodiment of the invention, wherein the thing side surface of these the second lens with as having one in side surface at least for aspheric surface, and the 4th lens are plastic material.
According to one embodiment of the invention, wherein the focal length of this optical photography lens combination is f, and the focal length of this first lens is f1, and meets following relationship:
1.3＜f/f1＜2.2。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and meets following relationship:
0＜|R1/R2|＜0.55。
According to one embodiment of the invention, wherein the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and meets following relationship:
-2.5＜f/f4＜-1.5。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of the 3rd lens is R5, as side surface radius-of-curvature, is R6, and meets following relationship:
1.1＜(R5+R6)/(R5-R6)＜5.0。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and meets following relationship:
-0.4＜R7/f＜-0.17。
According to one embodiment of the invention, wherein the abbe number of this first lens is V1, and the abbe number V2 of these the second lens, and meets following relationship:
29＜V1-V2＜42。
According to one embodiment of the invention, wherein this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis be TTL, and meet following relationship:
0.92＜SL/TTL＜1.1。
According to one embodiment of the invention, wherein 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:
-3.3＜(R3+R4)/(R3-R4)＜-0.7。
According to one embodiment of the invention, wherein the focal length of this first lens is f1, and the focal length of the 3rd lens is f3, and meets following relationship:
0.7＜f1/f3＜1.0。
According to one embodiment of the invention, wherein the thing side surface of these the second lens with as having at least a surface to be provided with at least one point of inflexion in side surface.
According to one embodiment of the invention, wherein the focal length of this optical photography lens combination is f, and the focal length of these the second lens is f2, and meets following relationship:
-0.75＜f/f2＜-0.4。
According to one embodiment of the invention, wherein the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and meets following relationship:
0＜|R1/R2|＜0.35。
According to one embodiment of the invention, wherein the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, this optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and meets following relationship:
TTL/ImgH＜1.95。
On the other hand, according to the invention provides an optical camera lens group, by thing side, extremely as side, sequentially comprise a first lens, one second lens, one the 3rd lens and one the 4th lens.First lens has positive refracting power, and its thing side surface is convex surface.The second lens have negative refracting power, and its thing side surface is concave surface.The 3rd lens have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface.The 4th lens have negative refracting power, 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.Wherein, in optical photography lens combination, the lens of tool refracting power are four, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of optical photography lens combination is f, the focal length of first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of the 3rd lens is R5, as side surface radius-of-curvature, is R6, and optical photography lens combination comprises an aperture, the distance of aperture to imaging surface on optical axis is SL, the thing side surface of first lens to the distance of this imaging surface on optical axis is TTL, meets following relationship:
-1.0＜R7/f＜0；
0.5＜f1/f3＜1.05；
The < 5 of 1.1 < (R5+R6)/(R5-R6); And
0.77＜SL/TTL＜1.1。
According to another embodiment of the present invention, wherein the 3rd lens and the 4th lens are all plastic material, and the thing side surface of the 4th lens with as having at least a surface to be provided with at least one point of inflexion in side surface.
According to another embodiment of the present invention, wherein the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and meets following relationship:
-2.5＜f/f4＜-1.5。
According to another embodiment of the present invention, wherein the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and meets following relationship:
-0.4＜R7/f＜-0.17。
According to another embodiment of the present invention, wherein the thing side surface of these the second lens with as having at least a surface to be provided with at least one point of inflexion in side surface, and the thing side surface radius-of-curvature of these the second lens is R3, is R4 as side surface radius-of-curvature, it meets following relationship:
-3.3＜(R3+R4)/(R3-R4)＜-0.7。
According to another embodiment of the present invention, wherein this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis be TTL, and meet following relationship:
0.92＜SL/TTL＜1.1。
According to another embodiment of the present invention, wherein the focal length of this first lens is f1, and the focal length of the 3rd lens is f3, and meets following relationship:
0.7＜f1/f3＜1.0。
Wherein, first lens has positive refracting power, provides optical photography lens combination required part refracting power, contributes to shorten the total length of optical photography lens combination.The second lens have negative refracting power, the aberration can revisal first lens producing, and revise the aberration of optical photography lens combination integral body.The positive refracting power of the 3rd lens tool, can distribute the refracting power of first lens, reduces the susceptibility of optical photography lens combination.The 4th lens tool is born refracting power, can make the principal point (Principle Point) of optical photography lens combination away from imaging surface, is conducive to shorten the optics total length of optical photography lens combination, to promote the miniaturization of camera lens.
When R7/f meets above-mentioned relation formula, the curvature of the 4th lens can make the making of lens comparatively easy with assembling, and can assist to revise the higher order aberratons of optical photography lens combination.
When f1/f3 meets above-mentioned relation formula, can effectively distribute the positive refracting power of first lens, reduce the susceptibility of optical photography lens combination.
When (R3+R4)/(R3-R4) meet above-mentioned relation formula, the aberration can revisal first lens producing, and be unlikely to make the refracting power of the second lens excessive, can avoid producing too much higher order aberratons.
When SL/TTL meets above-mentioned relation formula, be conducive to optical photography lens combination and obtain good effect in heart characteristic far away.
When (R5+R6)/(R5-R6) meet above-mentioned relation formula, the curvature of the 3rd lens can further strengthen revising the astigmatism of optical photography lens combination.
Therefore, optical photography lens combination provided by the invention, can effectively revise whole aberration, desensitising, 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 photography lens combination of the embodiment of the present invention 1;
Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 1 and distorts curve map;
Fig. 3 is the schematic diagram illustrating according to a kind of optical photography lens combination of the embodiment of the present invention 2;
Fig. 4 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 2 and distorts curve map;
Fig. 5 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 3;
Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 3 and distorts curve map;
Fig. 7 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 4;
Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 4 and distorts curve map;
Fig. 9 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 5;
Figure 10 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 5 and distorts curve map;
Figure 11 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 6;
Figure 12 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 6 and distorts curve map.
[primary clustering symbol description]
Aperture: 100,200,300,400,500,600
First lens: 110,210,310,410,510,610
Thing side surface: 111,211,311,411,511,611
Picture side surface: 112,212,312,412,512,612
The second lens: 120,220,320,420,520,620
Thing side surface: 121,221,321,421,521,621
Picture side surface: 122,222,322,422,522,622
The 3rd lens: 130,230,330,430,530,630
Thing side surface: 131,231,331,431,531,631
Picture side surface: 132,232,332,432,532,632
The 4th lens: 140,240,340,440,540,640
Thing side surface: 141,241,341,441,541,641
Picture side surface: 142,242,342,442,542,642
Imaging surface: 150,250,350,450,550,650
Infrared ray filtering optical filter: 160,260,360,460,560,660
F: the focal length of whole optical photography lens combination
F1: the focal length of first lens
F2: the focal length of the second lens
F3: the focal length of the 3rd lens
F4: the focal length of the 4th lens
V1: the abbe number of first lens
V2: the abbe number of the second lens
R1: the thing side surface radius-of-curvature of first lens
R2: the picture side surface radius-of-curvature of first lens
R3: the thing side surface radius-of-curvature of the second lens
R4: the picture side surface radius-of-curvature of the second lens
R5: the thing side surface radius-of-curvature of the 3rd lens
R6: the picture side surface radius-of-curvature of the 3rd lens
R7: the thing side surface radius-of-curvature of the 4th lens
SL: aperture is 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
Embodiment
The invention provides a kind of optical photography lens combination, sequentially by thing side, arranged to comprising first lens, the second lens, the 3rd lens and the 4th lens as side, a sense electronics optical assembly is separately set in imaging surface.
First lens has positive refracting power, and optical photography lens combination part refracting power can be provided, and contributes to shorten the total length of this optical photography lens combination.The thing side surface of first lens and can be all convex surface as side surface, or thing side surface be convex surface, the crescent lens that are concave surface as side surface.When the thing side surface of first lens is when being all convex surface as side surface, can strengthen the configuration of first lens refracting power, the total length of optical photography lens combination is shortened; And when first lens is above-mentioned crescent lens, contribute to revise the spherical aberration of optical photography lens combination.
The second lens have negative refracting power, the aberration that first lens that can the positive refracting power of revisal tool produces, and be conducive to revise the aberration of optical photography lens combination simultaneously.The thing side surface of the second lens and can be all concave surface as side surface, or thing side surface is concave surface, as side surface, is convex surface.When the second lens thing side surface and while being all concave surface as side surface, the Po Zi that can revise optical photography lens combination cuts down and (Petzval Sum), and can increase the back focal length of optical photography lens combination, guarantee that optical photography lens combination has enough back focal length can place other member; And be concave surface, while being convex surface as side surface, be conducive to the revisal of optical photography lens combination aberration when the second lens thing side surface, and the correction of optical photography lens combination astigmatism.In addition, the thing side surface of the second lens with as having at least a surface can be provided with at least one point of inflexion in side surface.
The 3rd lens have positive refracting power, can distribute the refracting power of first lens, reduce the susceptibility of optical photography lens combination.The thing side surface of the 3rd lens is concave surface, as side surface, is convex surface, is beneficial to whereby the correction of optical photography lens combination astigmatism.
The 4th lens have negative refracting power, can make the principal point (Principle Point) of optical photography lens combination away from imaging surface, are conducive to shorten the optics total length of optical photography lens combination, to promote the miniaturization of camera lens.Other the 4th lens thing side surface with as having at least a surface can be provided with at least one point of inflexion in side surface.
The thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of optical photography lens combination is f, and it meets following relationship:
-0.5＜R7/f＜0，
Whereby, the curvature of the 4th lens can make the making of lens comparatively easy with assembling, and can assist to revise optical photography lens combination higher order aberratons.
In addition, optical photography lens combination can further meet following relationship:
-1.0＜R7/f＜0。
Moreover optical photography lens combination also can further meet following relationship:
-0.4＜R7/f＜-0.17。
The focal length of first lens is f1, and the focal length of the 3rd lens is f3, and it meets following relationship:
0.5＜f1/f3＜1.05，
Whereby, can effectively distribute the positive refracting power of first lens, to reduce the susceptibility of optical photography lens combination.
In addition, optical photography lens combination can further meet following relationship:
0.7＜f1/f3＜1.0。
The thing side surface radius-of-curvature of the second lens is R3, as side surface radius-of-curvature, is R4, and it meets following relationship:
-5.0＜(R3+R4)/(R3-R4)＜0，
Whereby, the aberration can revisal first lens producing, and be unlikely to make the refracting power of the second lens excessive, avoid producing too much higher order aberratons.
In addition, optical photography lens combination can further meet following relationship:
-3.3＜(R3+R4)/(R3-R4)＜-0.7。
Optical photography lens combination comprises an aperture, and to imaging surface, the distance on optical axis is SL to aperture, and to imaging surface, the distance on optical axis is TTL to the thing side surface of first lens, meets following relationship:
0.77＜SL/TTL＜1.1，
When SL/TTL is less than 0.77, 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 1.1, can make whole optical photography lens combination total length long again.Therefore, this optical photography lens combination, when meeting 0.77 < SL/TTL < 1.1, can obtain the advantage of heart characteristic far away and be unlikely to make whole total length long.
In addition, optical photography lens combination can further meet following relationship:
0.92＜SL/TTL＜1.1。
The thing side surface radius-of-curvature of the 3rd lens is R5, as side surface radius-of-curvature, is R6, and meets following relationship:
1.1＜(R5+R6)/(R5-R6)＜5，
Whereby, the curvature of the 3rd lens can further strengthen revising the astigmatism of optical photography lens combination.
The focal length of optical photography lens combination is f, and the focal length of first lens is f1, and meets following relationship:
1.3＜f/f1＜2.2，
Whereby, the refracting power size configure of first lens is balance comparatively, can effectively control the optics total length of optical photography lens combination, and can avoid high-order spherical aberration simultaneously.
The thing side surface radius-of-curvature of first lens is R1, as side surface radius-of-curvature, is R2, and it meets following relationship:
0＜|R1/R2|＜0.55，
Whereby, be conducive to the revisal that sphere is received poor (Spherical Aberration), and first lens there is effect to the total length cripetura of camera lens, so also very effective to the miniaturization of camera lens.
In addition, optical photography lens combination can further meet following relationship:
0＜|R1/R2|＜0.35。
The focal length of optical photography lens combination is f, and the focal length of the 4th lens is f4, and it meets following relationship:
-2.5＜f/f4＜-1.5，
Whereby, can make the principal point of optical photography lens combination away from imaging surface, be conducive to shorten the total length of optical photography lens combination, to promote the miniaturization of camera lens.
The abbe number of first lens is V1, the abbe number V2 of the second lens, and it meets following relationship:
29＜V1-V2＜42，
Whereby, can revise the aberration of optical photography lens combination.
The focal length of optical photography lens combination is f, and the focal length of the second lens is f2, and it meets following relationship:
-0.75＜f/f2＜-0.4，
The refracting power of the second lens can be revised the aberration of first lens and the aberration of revising optical photography lens combination whereby.
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 meets following relationship:
TTL/ImgH＜1.95，
Whereby, can maintain the miniaturization of optical photography lens combination, to be equipped on frivolous portable electronic product.
In optical photography lens combination of the present invention, the material of lens can be glass or plastics, if the material of lens is glass, can increase the degree of freedom of this optical photography lens combination refracting power configuration, if lens material is plastics, can effectively reduce production costs.In addition, aspheric surface can be set on minute surface, aspheric surface can easily be made into the shape beyond sphere, obtain more control variable, in order to subdue aberration, and then reduce the number that lens use, therefore can effectively reduce the total length of optical photography lens combination of the present invention.
In optical photography lens combination of the present invention, if lens surface is convex surface, represent that this lens surface is convex surface in paraxial place; If lens surface is concave surface, represent that this lens surface is concave surface in paraxial place.In optical photography lens combination of the present invention, a smooth hurdle can be at least set to reduce parasitic light, contribute to promote the quality of image.
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 photography lens combination of the embodiment of the present invention 1, and Fig. 2 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 1 and distorts curve map.As shown in Figure 1, the optical photography lens combination of embodiment 1 extremely sequentially comprises aperture 100, first lens 110, the second lens 120, the 3rd lens 130, the 4th lens 140, infrared ray filtering optical filter 160 and imaging surface 150 as side by thing side.
The material of first lens 110 is plastics, and it has positive refracting power, the thing side surface 111 of first lens 110 and be all convex surface as side surface 112, and its thing side surface 111 and be all aspheric surface (Aspheric as side surface 112; Asp).
The material of the second lens 120 is plastics, and it has negative refracting power, and the thing side surface 121 of the second lens 120 is concave surface, as side surface 122, is convex surface, and its thing side surface 121 and be all aspheric surface as side surface 122.
The material of the 3rd lens 130 is plastics, and it has positive refracting power, and the thing side surface 131 of the 3rd lens 130 is concave surface, as side surface 132, is convex surface, and its thing side surface 131 and be all aspheric surface as side surface 132.
The material of the 4th lens 140 is plastics, and it has negative refracting power, and the thing side surface 141 of the 4th lens 140 is concave surface, as side surface 142, is convex surface, and its thing side surface 141 and be all aspheric surface as side surface 142.
Infrared ray filtering optical filter 160 is arranged at 150 of the 4th lens 140 and imaging surfaces, does not affect the focal length of optical photography lens combination.
The aspheric curvilinear equation formula of above-mentioned each lens is expressed as follows:
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 photography lens combination of embodiment 1, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.52mm；
Fno＝2.77；
HFOV=32.1 degree.
In the optical photography lens combination of embodiment 1, the abbe number of first lens 110 (Abbe number) is V1, and the abbe number of the second lens 120 is V2, and its pass is:
V1-V2＝32.1。
In the optical photography lens combination of embodiment 1, thing side surface 111 radius-of-curvature of first lens 110 are R1, 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 131 radius-of-curvature of the 3rd lens 130 are R5, as side surface 132 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.21；
(R3+R4)/(R3-R4)=-3.17; And
(R5+R6)/(R5-R6)＝2.07。
In the optical photography lens combination of embodiment 1, thing side surface 141 radius-of-curvature of the 4th lens 140 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.27。
In the optical photography lens combination of embodiment 1, the focal length of optical photography lens combination is f, and the focal length of first lens 110 is f1, and the focal length of the second lens 120 is f2, and the focal length of the 3rd lens 130 is f3, and the focal length of the 4th lens 140 is f4, and its pass is:
f/f1＝1.73；
f/f2＝-0.69；
F/f4=-1.94; And
f1/f3＝0.82。
In the optical photography lens combination of embodiment 1, aperture 100 is SL to the distance of imaging surface 150 on optical axis, and the thing side surface 111 of first lens 110 is TTL to the distance of imaging surface 150 on optical axis, and its pass is:
SL/TTL＝0.97。
In the optical photography lens combination of embodiment 1, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 150, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 111 to the pass that the distance of imaging surface 150 on optical axis is TTL of itself and first lens 110 is:
TTL/ImgH＝1.79。
Cooperation is with reference to table one and table two, and wherein table one is the structured data that Fig. 1 embodiment 1 is detailed, and table two is the aspherical surface data in embodiment 1.
Table one
Table two
In table one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Please refer to Fig. 3 and Fig. 4, wherein Fig. 3 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 2, and Fig. 4 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 2 and distorts curve map.As shown in Figure 3, the optical photography lens combination of embodiment 2 extremely sequentially comprises first lens 210, aperture 200, the second lens 220, the 3rd lens 230, the 4th lens 240, infrared ray filtering optical filter 260 and imaging surface 250 as side by thing side.
The material of first lens 210 is plastics, and it has positive refracting power, the thing side surface 211 of first lens 210 and be all convex surface as side surface 212, and its thing side surface 211 and be all aspheric surface as side surface 212.
The material of the second lens 220 is plastics, and it has negative refracting power, the thing side surface 221 of the second lens 220 and be all concave surface as side surface 222, and its thing side surface 221 and be all aspheric surface as side surface 222.
The material of the 3rd lens 230 is plastics, and it has positive refracting power, and the thing side surface 231 of the 3rd lens 230 is concave surface, as side surface 232, is convex surface, and its thing side surface 231 and be all aspheric surface as side surface 232.
The material of the 4th lens 240 is plastics, and it has negative refracting power, the thing side surface 241 of the 4th lens 240 and be all concave surface as side surface 242, and its thing side surface 241 and be all aspheric surface as side surface 242.
Infrared ray filtering optical filter 260 is arranged at 250 of the 4th lens 240 and imaging surfaces, does not affect the focal length of optical photography lens combination.
In embodiment 2, aspheric curvilinear equation formula represents, as the form of embodiment 1, at this, not add and repeat.
In the optical photography lens combination of embodiment 2, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.47mm；
Fno＝2.85；
HFOV=32.3 degree.
In the optical photography lens combination of embodiment 2, the abbe number of first lens 210 (Abbe number) is V1, and the abbe number of the second lens 220 is V2, and its pass is:
V1-V2＝32.1。
In the optical photography lens combination of embodiment 2, thing side surface 211 radius-of-curvature of first lens 210 are R1, 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 231 radius-of-curvature of the 3rd lens 230 are R5, as side surface 232 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.25；
(R3+R4)/(R3-R4)=-0.96; And
(R5+R6)/(R5-R6)＝2.47。
In the optical photography lens combination of embodiment 2, thing side surface 241 radius-of-curvature of the 4th lens 240 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.41。
In the optical photography lens combination of embodiment 2, the focal length of optical photography lens combination is f, and the focal length of first lens 210 is f1, and the focal length of the second lens 220 is f2, and the focal length of the 3rd lens 230 is f3, and the focal length of the 4th lens 240 is f4, and its pass is:
f/f1＝1.80；
f/f2＝-0.91；
F/f4=-1.99; And
f1/f3＝0.80。
In the optical photography lens combination of embodiment 2, aperture 200 is SL to the distance of imaging surface 250 on optical axis, and the thing side surface 211 of first lens 210 is TTL to the distance of imaging surface 250 on optical axis, and its pass is:
SL/TTL＝0.88。
In the optical photography lens combination of embodiment 2, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 250, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 211 to the pass that the distance of imaging surface 250 on optical axis is TTL of itself and first lens 210 is:
TTL/ImgH＝1.79。
Cooperation is with reference to table three and table four, and wherein table three is the structured data that Fig. 3 embodiment 2 is detailed, and table four is the aspherical surface data in embodiment 2.
Table three
Table four
In table three, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Please refer to Fig. 5 and Fig. 6, wherein Fig. 5 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 3, and Fig. 6 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 3 and distorts curve map.As shown in Figure 5, the optical photography lens combination of embodiment 3 extremely sequentially comprises aperture 300, first lens 310, the second lens 320, the 3rd lens 330, the 4th lens 340, infrared ray filtering optical filter 360 and imaging surface 350 as side by thing side.
The material of first lens 310 is plastics, and it has positive refracting power.The thing side surface 311 of first lens 310 and be all convex surface as side surface 312, and its thing side surface 311 and be all aspheric surface as side surface 312.
The material of the second lens 320 is plastics, and it has negative refracting power.The thing side surface 321 of the second lens 320 is concave surface, as side surface 322, is convex surface, and its thing side surface 321 and be all aspheric surface as side surface 322.
The material of the 3rd lens 330 is plastics, and it has positive refracting power.The thing side surface 331 of the 3rd lens 330 is concave surface, as side surface 332, is convex surface, and its thing side surface 331 and be all aspheric surface as side surface 332.
The material of the 4th lens 340 is plastics, and it has negative refracting power.The thing side surface 341 of the 4th lens 340 and be all concave surface as side surface 342, and its thing side surface 341 and be all aspheric surface as side surface 342.
Infrared ray filtering optical filter 360 is arranged at 350 of the 4th lens 340 and imaging surfaces, does not affect the focal length of optical photography lens combination.
In embodiment 3, aspheric curvilinear equation formula represents, as the form of embodiment 1, at this, not add and repeat.
In the optical photography lens combination of embodiment 3, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.28mm；
Fno＝2.80；
HFOV=32.3 degree.
In the optical photography lens combination of embodiment 3, the abbe number of first lens 310 (Abbe number) is V1, and the abbe number of the second lens 320 is V2, and its pass is:
V1-V2＝32.5。
In the optical photography lens combination of embodiment 3, thing side surface 311 radius-of-curvature of first lens 310 are R1, 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 331 radius-of-curvature of the 3rd lens 330 are R5, as side surface 332 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.28；
(R3+R4)/(R3-R4)=-4.02; And
(R5+R6)/(R5-R6)＝2.09。
In the optical photography lens combination of embodiment 3, thing side surface 341 radius-of-curvature of the 4th lens 340 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.37。
In the optical photography lens combination of embodiment 3, the focal length of optical photography lens combination is f, and the focal length of first lens 310 is f1, and the focal length of the second lens 320 is f2, and the focal length of the 3rd lens 330 is f3, and the focal length of the 4th lens 340 is f4, and its pass is:
f/f1＝1.63；
f/f2＝-0.57；
F/f4=-2.09; And
f1/f3＝0.99。
In the optical photography lens combination of embodiment 3, aperture 300 is SL to the distance of imaging surface 350 on optical axis, and the thing side surface 311 of first lens 310 is TTL to the distance of imaging surface 350 on optical axis, and its pass is:
SL/TTL＝0.97。
In the optical photography lens combination of embodiment 3, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 350, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 311 to the pass that the distance of imaging surface 350 on optical axis is TTL of itself and first lens 310 is:
TTL/ImgH＝1.81。
Cooperation is with reference to table five and table six, and wherein table five is the structured data that Fig. 5 embodiment 3 is detailed, and table six is the aspherical surface data in embodiment 3.
Table five
Table six
In table five, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Please refer to Fig. 7 and Fig. 8, wherein Fig. 7 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 4, and Fig. 8 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 4 and distorts curve map.As shown in Figure 7, the optical photography lens combination of embodiment 4 extremely sequentially comprises first lens 410, aperture 400, the second lens 420, the 3rd lens 430, the 4th lens 440, infrared ray filtering optical filter 460 and imaging surface 450 as side by thing side.
The material of first lens 410 is plastics, and it has positive refracting power.The thing side surface 411 of first lens 410 is for convex surface, be all concave surface as side surface 412, and its thing side surface 411 and be all aspheric surface as side surface 412.
The material of the second lens 420 is plastics, and it has negative refracting power.The thing side surface 421 of the second lens 420 is concave surface, as side surface 422, is convex surface, and its thing side surface 421 and be all aspheric surface as side surface 422.
The material of the 3rd lens 430 is plastics, and it has positive refracting power.The thing side surface 431 of the 3rd lens 430 is concave surface, as side surface 432, is convex surface, and its thing side surface 431 and be all aspheric surface as side surface 432.
The material of the 4th lens 440 is plastics, and it has negative refracting power.The thing side surface 441 of the 4th lens 440 is concave surface, as side surface 442, is convex surface, and its thing side surface 441 and be all aspheric surface as side surface 442.
Infrared ray filtering optical filter 460 is arranged at 450 of the 4th lens 440 and imaging surfaces, does not affect the focal length of optical photography lens combination.
In embodiment 4, aspheric curvilinear equation formula represents, as the form of embodiment 1, at this, not add and repeat.
In the optical photography lens combination of embodiment 4, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.39mm；
Fno＝2.80；
HFOV=32.2 degree.
In the optical photography lens combination of embodiment 4, the abbe number of first lens 410 (Abbe number) is V1, and the abbe number of the second lens 420 is V2, and its pass is:
V1-V2＝32.5。
In the optical photography lens combination of embodiment 4, thing side surface 411 radius-of-curvature of first lens 410 are R1, 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 431 radius-of-curvature of the 3rd lens 430 are R5, as side surface 432 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.06；
(R3+R4)/(R3-R4)=-1.20; And
(R5+R6)/(R5-R6)＝2.33。
In the optical photography lens combination of embodiment 4, thing side surface 441 radius-of-curvature of the 4th lens 440 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.30。
In the optical photography lens combination of embodiment 4, the focal length of optical photography lens combination is f, and the focal length of first lens 410 is f1, and the focal length of the second lens 420 is f2, and the focal length of the 3rd lens 430 is f3, and the focal length of the 4th lens 440 is f4, and its pass is:
f/f1＝1.52；
f/f2＝-0.84；
F/f4=-1.68; And
f1/f3＝0.98。
In the optical photography lens combination of embodiment 4, aperture 400 is SL to the distance of imaging surface 450 on optical axis, and the thing side surface 411 of first lens 410 is TTL to the distance of imaging surface 450 on optical axis, and its pass is:
SL/TTL＝0.85。
In the optical photography lens combination of embodiment 4, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 450, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 411 to the pass that the distance of imaging surface 450 on optical axis is TTL of itself and first lens 410 is:
TTL/ImgH＝1.81。
Cooperation is with reference to table seven and table eight, and wherein table seven is the structured data that Fig. 7 embodiment 4 is detailed, and table eight is the aspherical surface data in embodiment 4.
Table seven
Table eight
In table seven, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Please refer to Fig. 9 and Figure 10, wherein Fig. 9 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 5, and Figure 10 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 5 and distorts curve map.As shown in Figure 9, the optical photography lens combination of embodiment 5 extremely sequentially comprises aperture 500, first lens 510, the second lens 520, the 3rd lens 530, the 4th lens 540, infrared ray filtering optical filter 560 and imaging surface 550 as side by thing side.
The material of first lens 510 is plastics, and it has positive refracting power.The thing side surface 511 of first lens 510 and be all convex surface as side surface 512, and its thing side surface 511 and be all aspheric surface as side surface 512.
The material of the second lens 520 is plastics, and it has negative refracting power.The thing side surface 521 of the second lens 520 is concave surface, as side surface 522, is convex surface, and its thing side surface 521 and be all aspheric surface as side surface 522.
The material of the 3rd lens 530 is plastics, and it has positive refracting power.The thing side surface 531 of the 3rd lens 530 is concave surface, as side surface 532, is convex surface, and its thing side surface 531 and be all aspheric surface as side surface 532.
The material of the 4th lens 540 is plastics, and it has negative refracting power.The thing side surface 541 of the 4th lens 540 is concave surface, as side surface 542, is convex surface, and its thing side surface 541 and be all aspheric surface as side surface 542.
Infrared ray filtering optical filter 560 is arranged at 550 of the 4th lens 540 and imaging surfaces, does not affect the focal length of optical photography lens combination.
In embodiment 5, aspheric curvilinear equation formula represents, as the form of embodiment 1, at this, not add and repeat.
In the optical photography lens combination of embodiment 5, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.52mm；
Fno＝2.77；
HFOV=32.1 degree.
In the optical photography lens combination of embodiment 5, the abbe number of first lens 510 (Abbe number) is V1, and the abbe number of the second lens 520 is V2, and its pass is:
V1-V2＝32.4。
In the optical photography lens combination of embodiment 5, thing side surface 511 radius-of-curvature of first lens 510 are R1, 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 531 radius-of-curvature of the 3rd lens 530 are R5, as side surface 532 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.33；
(R3+R4)/(R3-R4)=-4.26; And
(R5+R6)/(R5-R6)＝2.75。
In the optical photography lens combination of embodiment 5, thing side surface 541 radius-of-curvature of the 4th lens 540 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.24。
In the optical photography lens combination of embodiment 5, the focal length of optical photography lens combination is f, and the focal length of first lens 510 is f1, and the focal length of the second lens 520 is f2, and the focal length of the 3rd lens 530 is f3, and the focal length of the 4th lens 540 is f4, and its pass is:
f/f1＝1.79；
f/f2＝-0.52；
F/f4=-1.84; And
f1/f3＝0.65。
In the optical photography lens combination of embodiment 5, aperture 500 is SL to the distance of imaging surface 550 on optical axis, and the thing side surface 511 of first lens 510 is TTL to the distance of imaging surface 550 on optical axis, and its pass is:
SL/TTL＝0.97。
In the optical photography lens combination of embodiment 5, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 550, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 511 to the pass that the distance of imaging surface 550 on optical axis is TTL of itself and first lens 510 is:
TTL/ImgH＝1.79。
Cooperation is with reference to table nine and table ten, and wherein table nine is the structured data that Fig. 9 embodiment 5 is detailed, and table ten is the aspherical surface data in embodiment 5.
Table nine
Table ten
In table nine, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Please refer to Figure 11 and Figure 12, wherein Figure 11 illustrates the schematic diagram according to a kind of optical photography lens combination of the embodiment of the present invention 6, and Figure 12 is sequentially from left to right spherical aberration, the astigmatism of a kind of optical photography lens combination of optical photography lens combination embodiment 6 and distorts curve map.As shown in Figure 11, the optical photography lens combination of embodiment 6 extremely sequentially comprises aperture 600, first lens 610, the second lens 620, the 3rd lens 630, the 4th lens 640, infrared ray filtering optical filter 660 and imaging surface 650 as side by thing side.
The material of first lens 610 is plastics, and it has positive refracting power.The thing side surface 611 of first lens 610 and be all convex surface as side surface 612, and its thing side surface 611 and be all aspheric surface as side surface 612.
The material of the second lens 620 is plastics, and it has negative refracting power.The thing side surface 621 of the second lens 620 and be all concave surface as side surface 622, and its thing side surface 621 and be all aspheric surface as side surface 622.
The material of the 3rd lens 630 is plastics, and it has positive refracting power.The thing side surface 631 of the 3rd lens 630 is concave surface, as side surface 632, is convex surface, and its thing side surface 631 and be all aspheric surface as side surface 632.
The material of the 4th lens 640 is plastics, and it has negative refracting power.The thing side surface 641 of the 4th lens 640 is concave surface, as side surface 642, is convex surface, and its thing side surface 641 and be all aspheric surface as side surface 642.
Infrared ray filtering optical filter 660 is arranged at 650 of the 4th lens 640 and imaging surfaces, does not affect the focal length of optical photography lens combination.
In embodiment 6, aspheric curvilinear equation formula represents, as the form of embodiment 1, at this, not add and repeat.
In the optical photography lens combination of embodiment 6, the focal length of whole optical photography lens combination is f, and the f-number of whole optical photography lens combination (f-number) is Fno, and in whole optical photography lens combination, half of maximum visual angle is HFOV, and its numerical value is as follows respectively:
f＝4.44mm；
Fno＝2.80；
HFOV=32.4 degree.
In the optical photography lens combination of embodiment 6, the abbe number of first lens 610 (Abbe number) is V1, and the abbe number of the second lens 620 is V2, and its pass is:
V1-V2＝29.2。
In the optical photography lens combination of embodiment 6, thing side surface 611 radius-of-curvature of first lens 610 are R1, 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 631 radius-of-curvature of the 3rd lens 630 are R5, as side surface 632 radius-of-curvature, are R6, and its pass is:
|R1/R2|＝0.50；
(R3+R4)/(R3-R4)=-0.59; And
(R5+R6)/(R5-R6)＝1.80。
In the optical photography lens combination of embodiment 6, thing side surface 641 radius-of-curvature of the 4th lens 640 are R7, and the focal distance f of itself and optical photography lens combination is closed and is:
R7/f＝-0.27。
In the optical photography lens combination of embodiment 6, the focal length of optical photography lens combination is f, and the focal length of first lens 610 is f1, and the focal length of the second lens 620 is f2, and the focal length of the 3rd lens 630 is f3, and the focal length of the 4th lens 640 is f4, and its pass is:
f/f1＝1.82；
f/f2＝-1.14；
F/f4=-1.83; And
f1/f3＝0.75。
In the optical photography lens combination of embodiment 6, aperture 600 is SL to the distance of imaging surface 650 on optical axis, and the thing side surface 611 of first lens 610 is TTL to the distance of imaging surface 650 on optical axis, and its pass is:
SL/TTL＝0.97。
In the optical photography lens combination of embodiment 6, optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface 650, half of sense electronics optical assembly effective pixel area diagonal line length is ImgH, and thing side surface 611 to the pass that the distance of imaging surface 650 on optical axis is TTL of itself and first lens 610 is:
TTL/ImgH＝1.82。
Cooperation is with reference to table ten one and table ten two, and wherein table ten one is the structured data that Figure 11 embodiment 6 is detailed, and table ten two is the aspherical surface data in embodiment 6.
Table ten one
Table ten two
In table ten one, the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-12 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-A12 represents each surperficial 1-12 rank asphericity coefficient.
Table one to table ten two is depicted as the different numerical value change tables of optical photography 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.Table ten three is the numeric data of the corresponding correlated condition formula of the present invention of each embodiment.
| |
|
Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| f | 4.52 | 4.47 | 4.28 | 4.39 | 4.52 | 4.44 |
| Fno | 2.77 | 2.85 | 2.80 | 2.80 | 2.77 | 2.80 |
| HFOV | 32.1 | 32.3 | 32.3 | 32.2 | 32.1 | 32.4 |
| V1-V2 | 32.1 | 32.1 | 32.5 | 32.5 | 32.4 | 29.2 |
| |R1/R2| | 0.21 | 0.25 | 0.28 | 0.06 | 0.33 | 0.50 |
| (R3+R4)/(R3-R4) | -3.17 | -0.96 | -4.02 | -1.20 | -4.26 | -0.59 |
| (R5+R6)/(R5-R6) | 2.07 | 2.47 | 2.09 | 2.33 | 2.75 | 1.80 |
| R7/f | -0.27 | -0.41 | -0.37 | -0.30 | -0.24 | -0.27 |
| f/f1 | 1.73 | 1.80 | 1.63 | 1.52 | 1.79 | 1.82 |
| f/f2 | -0.69 | -0.91 | -0.57 | -0.84 | -0.52 | -1.14 |
| f/f4 | -1.94 | -1.99 | -2.09 | -1.68 | -1.84 | -1.83 |
| f1/f3 | 0.82 | 0.80 | 0.99 | 0.98 | 0.65 | 0.75 |
| SL/TTL | 0.97 | 0.88 | 0.97 | 0.85 | 0.97 | 0.97 |
| TTL/ImgH | 1.79 | 1.79 | 1.81 | 1.81 | 1.79 | 1.82 |
Table ten three
In sum, optical photography lens combination provided by the invention can effectively be revised whole aberration, desensitising, more can obtain higher resolving power.
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 (23)
1. an optical photography 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, have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface, and its thing side surface with as having one in side surface at least for aspheric surface; And
One the 4th lens, have negative refracting power, and its thing side surface is concave surface, and its thing side surface with as having one in side surface at least for aspheric surface;
Wherein, in this optical photography lens combination, the lens of tool refracting power are four, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of this optical photography lens combination is f, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of these the second lens is R3, as side surface radius-of-curvature, is R4, and this optical photography lens combination comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, meets following relationship:
-0.5<R7/f<0；
0.5<f1/f3<1.05；
The <-0.7 of-5.0< (R3+R4)/(R3-R4); And
0.77<SL/TTL<1.1。
2. optical photography lens combination according to claim 1, is characterized in that, the thing side surface of the 4th lens and be all aspheric surface as side surface, and this thing side surface and this is as having at least a surface to be provided with at least one point of inflexion in side surface.
3. optical photography lens combination according to claim 2, is characterized in that, the thing side surface of these the second lens with as having one in side surface at least for aspheric surface, and the 4th lens are plastic material.
4. optical photography lens combination according to claim 3, is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of this first lens is f1, and meets following relationship:
1.3<f/f1<2.2。
5. optical photography lens combination according to claim 4, is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and meets following relationship:
0<|R1/R2|<0.55。
6. optical photography lens combination according to claim 4, is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and meets following relationship:
-2.5<f/f4<-1.5。
7. optical photography lens combination according to claim 5, is characterized in that, the thing side surface radius-of-curvature of the 3rd lens is R5, as side surface radius-of-curvature, is R6, and meets following relationship:
1.1<(R5+R6)/(R5-R6)<5.0。
8. optical photography lens combination according to claim 5, is characterized in that, the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and meets following relationship:
-0.4<R7/f<-0.17。
9. optical photography lens combination according to claim 6, is characterized in that, the abbe number of this first lens is V1, and the abbe number V2 of these the second lens, and meets following relationship:
29<V1-V2<42。
10. optical photography lens combination according to claim 6, it is characterized in that, this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and meets following relationship:
0.92<SL/TTL<1.1。
11. optical photography lens combination according to claim 10, is characterized in that, the thing side surface radius-of-curvature of these the second lens is R3, as side surface radius-of-curvature, is R4, and it meets following relationship:
-3.3<(R3+R4)/(R3-R4)<-0.7。
12. optical photography lens combination according to claim 6, it is characterized in that, the focal length of this first lens is f1, and the focal length of the 3rd lens are f3, and meet following relationship:
0.7<f1/f3<1.0。
13. optical photography lens combination according to claim 3, is characterized in that, the thing side surface of these the second lens with as having at least a surface to be provided with at least one point of inflexion in side surface.
14. optical photography lens combination according to claim 13, is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of these the second lens is f2, and meet following relationship:
-0.75<f/f2<-0.4。
15. optical photography lens combination according to claim 13, is characterized in that, the thing side surface radius-of-curvature of this first lens is R1, as side surface radius-of-curvature, is R2, and meets following relationship:
0<|R1/R2|<0.35。
16. optical photography 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, this optical photography lens combination is separately provided with a sense electronics optical assembly in imaging surface, half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and meets following relationship:
TTL/ImgH<1.95。
17. 1 kinds of optical photography 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, and its thing side surface is concave surface;
One the 3rd lens, have positive refracting power, and its thing side surface is concave surface, as side surface, is convex surface; And
One the 4th lens, have negative refracting power, 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;
Wherein, in this optical photography lens combination, the lens of tool refracting power are four, the thing side surface radius-of-curvature of the 4th lens is R7, the focal length of this optical photography lens combination is f, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of the 3rd lens is R5, as side surface radius-of-curvature, is R6, and this optical photography lens combination comprises an aperture, the distance of this aperture to one imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, meets following relationship:
-1.0<R7/f<0；
0.65≤f1/f3<1.05；
The <5 of 1.1< (R5+R6)/(R5-R6); And
0.77<SL/TTL<1.1。
18. optical photography lens combination according to claim 17, is characterized in that, the 3rd lens and the 4th lens are all plastic material, and the thing side surface of the 4th lens with as having at least a surface to be provided with at least one point of inflexion in side surface.
19. optical photography lens combination according to claim 18, is characterized in that, the focal length of this optical photography lens combination is f, and the focal length of the 4th lens is f4, and meet following relationship:
-2.5<f/f4<-1.5。
20. optical photography lens combination according to claim 19, is characterized in that, the thing side surface radius-of-curvature of the 4th lens is R7, and the focal length of this optical photography lens combination is f, and meet following relationship:
-0.4<R7/f<-0.17。
21. optical photography lens combination according to claim 19, it is characterized in that, the thing side surface of these the second lens with as having at least a surface to be provided with at least one point of inflexion in side surface, and the thing side surface radius-of-curvature of these the second lens is R3, is R4 as side surface radius-of-curvature, it meets following relationship:
-3.3<(R3+R4)/(R3-R4)<-0.7。
22. optical photography lens combination according to claim 19, it is characterized in that, this aperture is between an object and this first lens, and the distance of this aperture to one imaging surface on optical axis is SL, and the thing side surface of this first lens to the distance of this imaging surface on optical axis is TTL, and meets following relationship:
0.92<SL/TTL<1.1。
23. optical photography lens combination according to claim 22, it is characterized in that, the focal length of this first lens is f1, and the focal length of the 3rd lens are f3, and meet following relationship:
0.7<f1/f3<1.0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010617463.4A CN102540418B (en) | 2010-12-15 | 2010-12-15 | Optical photographic lens assembly |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010617463.4A CN102540418B (en) | 2010-12-15 | 2010-12-15 | Optical photographic lens assembly |
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| CN102540418A CN102540418A (en) | 2012-07-04 |
| CN102540418B true CN102540418B (en) | 2014-03-12 |
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| TWI550306B (en) * | 2014-04-08 | 2016-09-21 | 大立光電股份有限公司 | Optical lens system, imaging device and electronic device |
| CN111198434B (en) * | 2020-02-24 | 2021-07-30 | 诚瑞光学(常州)股份有限公司 | Image pickup optical lens |
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|---|---|---|---|---|
| US6744570B1 (en) * | 2003-01-30 | 2004-06-01 | Minolta Co., Ltd. | Taking lens system |
| CN101419331A (en) * | 2007-10-25 | 2009-04-29 | 三星Techwin株式会社 | Compact lens system |
| CN101533148A (en) * | 2008-12-26 | 2009-09-16 | 凤凰光学(上海)有限公司 | Optical imaging system of high-pixel mobile phone lens |
| CN201926810U (en) * | 2010-12-15 | 2011-08-10 | 大立光电股份有限公司 | Optic photographic lens set |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008185880A (en) * | 2007-01-31 | 2008-08-14 | Enplas Corp | Imaging lens and imaging device equipped with the same |
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| US6744570B1 (en) * | 2003-01-30 | 2004-06-01 | Minolta Co., Ltd. | Taking lens system |
| CN101419331A (en) * | 2007-10-25 | 2009-04-29 | 三星Techwin株式会社 | Compact lens system |
| CN101533148A (en) * | 2008-12-26 | 2009-09-16 | 凤凰光学(上海)有限公司 | Optical imaging system of high-pixel mobile phone lens |
| CN201926810U (en) * | 2010-12-15 | 2011-08-10 | 大立光电股份有限公司 | Optic photographic lens set |
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