CN102213819B - Image capture lens system - Google Patents

Image capture lens system Download PDF

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Publication number
CN102213819B
CN102213819B CN 201010154318 CN201010154318A CN102213819B CN 102213819 B CN102213819 B CN 102213819B CN 201010154318 CN201010154318 CN 201010154318 CN 201010154318 A CN201010154318 A CN 201010154318A CN 102213819 B CN102213819 B CN 102213819B
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lens
image capture
lens system
capture lens
focal length
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CN102213819A (en
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陈俊杉
蔡宗翰
谢东益
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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 image capture lens system. The image capture lens system comprises a first lens with negative refraction power, a second lens with positive refraction power, a third lens with positive refraction power, a fourth lens with negative refraction power, and a diaphragm arranged between the first lens and the third lens from an object side to an image side, wherein the surface of the image side of the first lens is a concave surface; the surface of the image side of the second lens is a convex surface; at least one of the surfaces of the object side and the image side of the third lens is an aspheric surface; the surfaces of the object side and the image side of the fourth lens are aspheric surfaces; and the number of lenses with the refraction power in the image capture lens system is four, the curvature radius of the surface of the image side of the second lens is R4, the focal length of the whole image capture lens system is f, and a distance between the third lens and the fourth lens on an optical axis is T34, so the coefficients are in accordance with the following expression: R4/f is more than -2.0 and less than -0.2, and (T34/f)*100 is more than 0.5 and less than 20.0. By the arrangement, the total length of the system can be shortened effectively; the system has a characteristic of wide vision angle; and the imaging quality can be improved.

Description

Image capture lens system
Technical field
The invention relates to a kind of image capture lens system; Particularly about a kind of miniaturization image capture lens system that is applied on the portable type electronic product.
Background technology
Recent years, rise along with the portable type electronic product with camera function, the demand of miniaturization phtographic lens day by day improves, and the photosensory assembly of general phtographic lens is nothing more than being photosensitive coupling component (Charge Coupled Device, CCD) or complementary matal-oxide semiconductor assembly (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two kind, and owing to progressing greatly of semiconductor process techniques, so that the Pixel Dimensions of photosensory assembly dwindles, add electronic product now take the good and compact external form of function as development trend, therefore, the miniaturization phtographic lens that possesses good image quality becomes main flow in the market.
Existing PC CAMERA is first-class with the photographic mirror of large field angle, adopt take the pre-group lens as negative refracting power more, rear group's lens are the configuration mode of positive refracting power, consist of so-called anti-photography type (Inverse Telephoto) structure, obtain by this characteristic of Wide-angle, such as United States Patent (USP) the 7th, 515, shown in No. 351, for adopting the negative refracting power of pre-group, five chip lens arrangements of the positive refracting power of rear group, wherein the 3rd lens and the 4th lens are to become doublet (Doublet) with mutual bonding of two sheet glass spherical mirrors, in order to color difference eliminating, but the method has its shortcoming, one, too much glass spherical mirror configuration is so that degree of freedom in system is not enough, cause the optics total length of system to be difficult for shortening, add overall lens system and have five pieces of lens, the miniaturization that is difficult to reach camera lens; Its two, glass mirror bind to be difficult for, to causing easily difficulty on the technique.
In view of this, be badly in need of a kind of being equipped on the electronic product, technique is simple and easy and be unlikely to the image capture lens system that makes the camera lens total length long.
Summary of the invention
The invention provides a kind of image capture lens system, extremely sequentially comprised as side by the thing side: the first lens of the negative refracting power of a tool, it is concave surface as side surface; The second lens of the positive refracting power of one tool, it is convex surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface; The 4th lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, its thing side surface and be all aspheric surface as side surface, its thing side surface and have at least one point of inflexion as at least one surface in the side surface; And an aperture, be arranged between this first lens and the 3rd lens; Wherein, the lens of tool refracting power are four in this image capture lens system, these the second lens be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, the 3rd lens and the distance of the 4th lens on optical axis are T34, satisfy following relationship :-2.0＜R4/f＜-0.2; 0.5＜(T34/f) * 100＜20.0.
On the other hand, the invention provides a kind of image capture lens system, by the thing side to sequentially comprising as side: the first lens of the negative refracting power of a tool, its thing side surface are convex surface and are concave surface as side surface; The second lens of the positive refracting power of one tool, it is convex surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface; The 4th lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, its thing side surface and be all aspheric surface as side surface, its thing side surface and have at least one point of inflexion as at least one surface in the side surface; And an aperture, be arranged between this first lens and this second lens; Wherein, the lens of tool refracting power are four in this image capture lens system, and the focal length of overall image capture lens system is f, and the focal length of the 3rd lens is f3, the 3rd lens and the distance of the 4th lens on optical axis are T34, satisfy following relationship: 0.80＜f/f3＜2.40; 0.5＜(T34/f) * 100＜20.0.
The present invention puts mode by above-mentioned mirror assembly, can effectively revise aberration with the image quality of elevator system, and can shorten simultaneously the optics total length of this image capture lens system, and has the characteristic of Wide-angle concurrently.
In the image capture lens system of the present invention, this first lens tool is born refracting power, helps to enlarge the field angle of this image capture lens system; The positive refracting power of this second lens tool can be conducive to revise tool and bear the aberration that this first lens of refracting power produces; The positive refracting power of the 3rd lens tool provides this image capture lens system main refracting power, can be conducive to shorten the total length of lens combination; The 4th lens tool is born refracting power, can be conducive to revise the aberration (Chromatic Aberration) of this image capture lens system.
In the image capture lens system of the present invention, this first lens be concave surface as side surface, can help to enlarge the field angle of system; And when this first lens is that a thing side surface is convex surface, when being the crescent lens of concave surface as side surface, more is conducive to enlarging system's field angle and revising in the aberration and obtain better balance.It is concave surface that these second lens can be a thing side surface, be crescent lens or a biconvex lens of convex surface as side surface, when these second lens are a concavo-convex moon-shaped lens, can be conducive to the astigmatism (Astigmatism) of update the system; When these second lens are a biconvex lens, then can effectively strengthen the refracting power configuration of these the second lens, and then help to distribute the refracting power of the 3rd lens, to reduce the susceptibility of system.The 3rd lens can be a biconvex lens, and biconvex lens can effectively be strengthened the refracting power configuration of the 3rd lens, make the optics total length of system can be shorter.It is concave surface that the 4th lens can be a thing side surface, be the crescent lens of convex surface as side surface, be conducive to the astigmatism of update the system, and can promote the image quality of this image capture lens system.
In the image capture lens system of the present invention, this aperture can place between this first lens and this second lens or between these second lens and the 3rd lens.In wide-angle optics, need to do correction to distorting (Distortion) and multiplying power look receipts poor (Chromatic Aberration of Magnifiation) especially, its method is for to place system light flexion equilibrium of forces place with aperture.Therefore, in the image capture lens system of the present invention, aperture is placed between this first lens and the 3rd lens, obtain well balancedly in the total length that purpose is to shorten camera lens and the characteristic that possesses Wide-angle, and so configuration mode can effectively reduce the susceptibility of system; When this aperture was arranged between this first lens and this second lens, the total length of this image capture lens system can be shorter.
Description of drawings
Figure 1A is the optical system synoptic diagram of first embodiment of the invention;
Figure 1B is the aberration curve figure of first embodiment of the invention;
Fig. 2 A is the optical system synoptic diagram of second embodiment of the invention;
Fig. 2 B is the aberration curve figure of second embodiment of the invention;
Fig. 3 A is the optical system synoptic diagram of third embodiment of the invention;
Fig. 3 B is the aberration curve figure of third embodiment of the invention;
Fig. 4 A is the optical system synoptic diagram of fourth embodiment of the invention;
Fig. 4 B is the aberration curve figure of fourth embodiment of the invention;
Fig. 5 A is the optical system synoptic diagram of fifth embodiment of the invention;
Fig. 5 B is the aberration curve figure of fifth embodiment of the invention;
Fig. 6 is table one, is the optical data of first embodiment of the invention;
Fig. 7 is table two, is the aspherical surface data of first embodiment of the invention;
Fig. 8 is table three, is the optical data of second embodiment of the invention;
Fig. 9 is table four, is the aspherical surface data of second embodiment of the invention;
Figure 10 is table five, is the optical data of third embodiment of the invention;
Figure 11 is table six, is the aspherical surface data of third embodiment of the invention;
Figure 12 is table seven, is the optical data of fourth embodiment of the invention;
Figure 13 is table eight, is the aspherical surface data of fourth embodiment of the invention;
Figure 14 is table nine, is the optical data of fifth embodiment of the invention;
Figure 15 is table ten, is the aspherical surface data of fifth embodiment of the invention;
Figure 16 is table ten one, is the numerical data of first embodiment of the invention to the five embodiment correlationship formulas.
Drawing reference numeral:
Aperture 100,200,300,400,500
First lens 110,210,310,410,510
Thing side surface 111,211,311,411,511
Picture side surface 112,212,312,412,512
The second lens 120,220,320,420,520
Thing side surface 121,221,321,421,521
Picture side surface 122,222,322,422,522
The 3rd lens 130,230,330,430,530
Thing side surface 131,231,331,431,531
Picture side surface 132,232,332,432,532
The 4th lens 140,240,340,440,540
Thing side surface 141,241,341,441,541
Picture side surface 142,242,342,442,542
Optical filter 150,250,350,450,550
Cover glass 160,260,360,460,560
Imaging surface 170,270,370,470,570
The focal length of overall image capture lens system is f
The focal length of first lens is f1
The focal length of the 3rd lens is f3
The focal length of the 4th lens is f4
The abbe number of first lens is V1
The abbe number of the second lens is V2
The abbe number of the 3rd lens is V3
The abbe number of the 4th lens is V4
The second lens be R4 as the side surface radius-of-curvature
The thing side surface radius-of-curvature of the 3rd lens is R5
The 3rd lens be R6 as the side surface radius-of-curvature
First lens and the distance of the second lens on optical axis are T12
The 3rd lens and the distance of the 4th lens on optical axis are T34
Aperture to the distance of sense electronics optical assembly on optical axis is SL
The thing side surface of first lens to the distance of sense electronics optical assembly on optical axis is TTL
Half of sense electronics optical assembly effective pixel area diagonal line length is ImgH
Embodiment
The invention provides a kind of image capture lens system, extremely sequentially comprised as side by the thing side: the first lens of the negative refracting power of a tool, it is concave surface as side surface; The second lens of the positive refracting power of one tool, it is convex surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface; The 4th lens of the negative refracting power of one tool, its thing side surface and be all aspheric surface as side surface; And an aperture, be arranged between this first lens and the 3rd lens; Wherein, the lens of tool refracting power are four in this image capture lens system, these the second lens be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, the 3rd lens and the distance of the 4th lens on optical axis are T34, satisfy following relationship :-2.0＜R4/f＜-0.2; 0.5＜(T34/f) * 100＜20.0.
When aforementioned image capture lens system satisfies following relationship :-2.0＜R4/f＜-0.2, can help to make these second lens to have suitable positive refracting power, to distribute the refracting power of the 3rd lens, and then reduce the susceptibility of this image capture lens system, and the aberration that can effectively produce this first lens simultaneously be done revisal; Further, preferably satisfy following relationship :-1.0＜R4/f＜-0.5.When aforementioned image capture lens system satisfies following relationship: 0.5＜(T34/f) * 100＜20.0 can be conducive to revise the higher order aberratons of this image capture lens system, with the image quality of elevator system; Further, preferably satisfy following relationship: 4.0＜(T34/f) * 100＜12.0.
In the aforementioned image capture lens system of the present invention, preferably, the thing side surface of the 3rd lens and be all convex surface as side surface can effectively be strengthened the refracting power configuration of the 3rd lens, makes the optics total length of system can be shorter; Preferably, the thing side surface of the 3rd lens and be all aspheric surface as side surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more control variable, in order to subdue aberration, and then the number of reduction lens use, therefore can effectively reduce the optics total length of system, and promote image quality; Preferably, the thing side surface of the 4th lens and have at least one point of inflexion as at least one surface in the side surface is conducive to suppress from the light of axle visual field and is incident in angle on the photosensory assembly, and the further aberration of modified off-axis visual field.
In the aforementioned image capture lens system of the present invention, preferably, the thing side surface of this first lens is convex surface, is conducive to enlarging system's field angle and revising in the aberration and obtain better balance; And preferably, the thing side surface of the 4th lens is concave surface and is convex surface as side surface, can be conducive to the astigmatism of update the system, to promote the image quality of this image capture lens system.
In the aforementioned image capture lens system of the present invention, preferably, at least three lens materials are plastics in this image capture lens system, and the thing side surface of described lens and be all aspheric surface as side surface, the plastic material lens not only are conducive to the making of non-spherical lens, more can effectively reduce production costs.
In the aforementioned image capture lens system of the present invention, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens is f3, preferably, satisfies following relationship: 0.80＜f/f3＜2.40.When f/f3 satisfies the above-mentioned relation formula, the refracting power size configure of the 3rd lens is balance comparatively, optics total length with effective shortening system, and can avoid simultaneously the excessive increase of high-order spherical aberration (High Order Spherical Aberration), and then the image quality of elevator system; Further, preferably satisfy following relationship: 1.25＜f/f3＜1.75.
In the aforementioned image capture lens system of the present invention, the focal length of overall image capture lens system is f, and the focal length of this first lens is f1, preferably, satisfies following relationship :-1.00＜f/f1＜-0.30.When f/f1 satisfies the above-mentioned relation formula, can be conducive in the field angle that enlarges this image capture lens system and shorten in the optics total length average out.
In the aforementioned image capture lens system of the present invention, the abbe number of the 3rd lens is V3, and the abbe number of the 4th lens is V4, preferably, satisfies following relationship: 23.0＜V3-V4＜46.0.When V3-V4 satisfies the above-mentioned relation formula, help to promote the ability of this image capture lens system correction aberration; Further, preferably satisfy following relationship: 30.0＜V3-V4＜40.0.
In the aforementioned image capture lens system of the present invention, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, preferably, satisfies following relationship: 30.0＜V2-V1＜40.0.When V2-V1 satisfies the above-mentioned relation formula, the more effectively revisal of strengthening system aberration.
In the aforementioned image capture lens system of the present invention, preferably, this aperture is arranged between this first lens and this second lens; And this image capture lens system arranges a sense electronics optical assembly in addition for the object imaging, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical assembly on optical axis is TTL, preferably, satisfy following relationship: 0.65＜SL/TTL＜0.90.When SL/TTL satisfied the above-mentioned relation formula, it was well balanced to be conducive to guarantee that lens combination obtains in the total length that shortens camera lens and the characteristic that possesses Wide-angle.
In the aforementioned image capture lens system of the present invention, this first lens and the distance of these the second lens on optical axis are T12, and the focal length of overall image capture lens system is f, preferably, satisfies following relationship: 0.05＜T12/f＜1.20.When T12/f satisfies the above-mentioned relation formula, be conducive to revise the higher order aberratons of this image capture lens system, the image quality of elevator system, and can make the configuration of mirror group in the system more tight, be conducive to reduce the total length of camera lens; Further, preferably satisfy following relationship: 0.10＜T12/f＜0.50.
In the aforementioned image capture lens system of the present invention, the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, preferably, satisfies following relationship :-1.00＜f3/f4＜-0.50.When f3/f4 satisfied the above-mentioned relation formula, the refracting power of the 3rd lens and these four lens disposed comparatively balance, can help the revisal of system's aberration and higher order aberratons.
In the aforementioned image capture lens system of the present invention, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, preferably, satisfies following relationship :-0.50＜(R5+R6)/(R5-R6)＜0.70.When (R5+R6)/(R5-R6) satisfies the above-mentioned relation formula, can be conducive to the spherical aberration of update the system.
In the aforementioned image capture lens system of the present invention, other arranges a sense electronics optical assembly for the object imaging, the thing side surface of this first lens to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, preferably, satisfy following relationship: TTL/ImgH＜5.0.When TTL/ImgH satisfies the above-mentioned relation formula, be conducive to keep the miniaturization of this image capture lens system, to be equipped on the frivolous portable electronic product.
On the other hand, the invention provides a kind of image capture lens system, by the thing side to sequentially comprising as side: the first lens of the negative refracting power of a tool, its thing side surface are convex surface and are concave surface as side surface; The second lens of the positive refracting power of one tool, it is convex surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface; The 4th lens of the negative refracting power of one tool, its thing side surface and have at least one point of inflexion as at least one surface in the side surface; And an aperture, be arranged between this first lens and this second lens; Wherein, the lens of tool refracting power are four in this image capture lens system, and the focal length of overall image capture lens system is f, and the focal length of the 3rd lens is f3, the 3rd lens and the distance of the 4th lens on optical axis are T34, satisfy following relationship: 0.80＜f/f3＜2.40; 0.5＜(T34/f) * 100＜20.0.
When aforementioned image capture lens system satisfies following relationship: 0.80＜f/f3＜2.40, the refracting power size configure of the 3rd lens is balance comparatively, with the optics total length of effective shortening system, and can avoid simultaneously the excessive increase of high-order spherical aberration and then the image quality of elevator system; Further, preferably satisfy following relationship: 1.25＜f/f3＜1.75.When aforementioned image capture lens system satisfies following relationship: 0.5＜(T34/f) * 100＜20.0 can be conducive to revise the higher order aberratons of this image capture lens system, with the image quality of elevator system.
In the aforementioned image capture lens system of the present invention, preferably, the thing side surface of the 4th lens is concave surface and is convex surface as side surface, is conducive to the astigmatism of update the system, to promote the image quality of this image capture lens system; And preferably, the thing side surface of the 3rd lens and the 4th lens and be all aspheric surface as side surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more control variable, in order to subdue aberration, and then the number of reduction lens use, therefore can effectively reduce the optics total length of system, and promote image quality.
In the aforementioned image capture lens system of the present invention, preferably, at least three lens materials are plastics in this image capture lens system, and the thing side surface of described lens and be all aspheric surface as side surface, the plastic material lens not only are conducive to the making of non-spherical lens, more can effectively reduce production costs.
In the aforementioned image capture lens system of the present invention, this first lens and the distance of these the second lens on optical axis are T12, and the focal length of overall image capture lens system is f, preferably, satisfies following relationship: 0.10＜T12/f＜0.50.When T12/f satisfies the above-mentioned relation formula, be conducive to revise the higher order aberratons of this image capture lens system, the image quality of elevator system, and can make the configuration of mirror group in the system more tight, be conducive to reduce the total length of camera lens.
In the aforementioned image capture lens system of the present invention, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, the abbe number of the 3rd lens is V3, the abbe number of the 4th lens is V4, preferably, satisfies following relationship: 30.0＜V2-V1＜40.0; 30.0＜V3-V4＜40.0.When V2-V1, V3-V4 satisfy the above-mentioned relation formula, help to promote the ability of this image capture lens system correction aberration.
In the aforementioned image capture lens system of the present invention, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, preferably, satisfies following relationship :-0.50＜(R5+R6)/(R5-R6)＜0.70.When (R5+R6)/(R5-R6) satisfies the above-mentioned relation formula, can be conducive to the spherical aberration of update the system.
In the image capture lens system of the present invention, the material of lens can be glass or plastics, if the material of lens is glass, then can increase the degree of freedom of system's refracting power configuration, if the lens material is plastics, then can effectively reduce production costs.In addition, aspheric surface can be set on minute surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more control variable, in order to subduing aberration, and then the number that uses of reduction lens, therefore can effectively reduce the optics total length of image capture lens system of the present invention.
In the image capture lens system of the present invention, if lens surface is convex surface, represent that then this lens surface is convex surface in paraxial place; If lens surface is concave surface, represent that then this lens surface is concave surface in paraxial place.
Image capture lens system of the present invention will cooperate appended graphic detailed description the in detail by following specific embodiment.
" the first embodiment "
First embodiment of the invention sees also Figure 1A, and the aberration curve of the first embodiment sees also Figure 1B.The first embodiment sends out image capture lens system and mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:
The first lens 110 of the negative refracting power of one tool, its thing side surface 111 be that convex surface and picture side surface 112 are concave surface, and its material is plastics, the thing side surface 111 of this first lens 110 and be all aspheric surface as side surface 112;
The second lens 120 of the positive refracting power of one tool, its thing side surface 121 are that concave surface and picture side surface 122 are convex surface, and its material is plastics, the thing side surface 121 of these the second lens 120 and be all aspheric surface as side surface 122;
The 3rd lens 130 of the positive refracting power of one tool, its thing side surface 131 and be all convex surface as side surface 132, its material is plastics, the thing side surface 131 of the 3rd lens 130 and be all aspheric surface as side surface 132;
The 4th lens 140 of the negative refracting power of one tool, its thing side surface 141 is that concave surface and picture side surface 142 are convex surface, its material is plastics, the thing side surface 141 of the 4th lens 140 and be all aspheric surface as side surface 142, and the thing side surface 141 of the 4th lens 140 and all have at least one point of inflexion as side surface 142;
One aperture 100 places between this first lens 110 and this second lens 120;
Other includes an optical filter (Filter) 150 and cover glass (Cover-glass) 160 places between the picture side surface 142 and an imaging surface 170 of the 4th lens 140; The material of this optical filter 150 and cover glass 160 is that glass and its do not affect the focal length of this image capture lens system of the present invention.
The equation of above-mentioned aspheric curve is expressed as follows:
X ( Y ) = ( Y 2 / R ) / ( 1 + sqrt ( 1 - ( 1 + k ) * ( Y / R ) 2 ) ) + Σ i ( Ai ) * ( Y i )
Wherein:
X: Ju From optical axis is Y De Dot Shang 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;
Ai: i rank asphericity coefficient.
In the first embodiment image capture lens system, the focal length of overall image capture lens system is f, and its relational expression is: f=3.56 (millimeter).
In the first embodiment image capture lens system, the f-number (f-number) of overall image capture lens system is Fno, and its relational expression is: Fno=2.05.
In the first embodiment image capture lens system, half of maximum visual angle is HFOV in the overall image capture lens system, and its relational expression is: HFOV=38.3 (degree).
In the first embodiment image capture lens system, the abbe number of this first lens 110 is V1, and the abbe number of these the second lens 120 is V2, and its relational expression is: V2-V1=32.5.
In the first embodiment image capture lens system, the abbe number of the 3rd lens 130 is V3, and the abbe number of the 4th lens 140 is V4, and its relational expression is: V3-V4=32.5.
In the first embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of this first lens 110 is f1, and its relational expression is: f/f1=-0.51.
In the first embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens 130 is f3, and its relational expression is: f/f3=1.47.
In the first embodiment image capture lens system, the focal length of the 3rd lens 130 is f3, and the focal length of the 4th lens 140 is f4, and its relational expression is: f3/f4=-0.63.
In the first embodiment image capture lens system, these the second lens 120 be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, its relational expression is: R4/f=-0.61.
In the first embodiment image capture lens system, the thing side surface radius-of-curvature of the 3rd lens 130 is R5, the 3rd lens 130 be R6 as the side surface radius-of-curvature, its relational expression is: (R5+R6)/(R5-R6)=0.38.
In the first embodiment image capture lens system, this first lens 110 is T12 with the distance of these the second lens 120 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: T12/f=0.26.
In the first embodiment image capture lens system, the 3rd lens 130 are T34 with the distance of the 4th lens 140 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: (T34/f) * 100=6.24.
In the first embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 170 places for the object imaging thereon in addition, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface 111 of this first lens 110 is TTL to the distance of this sense electronics optical assembly on optical axis, and its relational expression is: SL/TTL=0.81.
In the first embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 170 places for the object imaging thereon in addition, the thing side surface 111 of this first lens 110 to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=3.73.
The detailed optical data of the first embodiment is shown in Fig. 6 table one, and its aspherical surface data is shown in Fig. 7 table two, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.
" the second embodiment "
Second embodiment of the invention sees also Fig. 2 A, and the aberration curve of the second embodiment sees also Fig. 2 B.The image capture lens system of the second embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:
The first lens 210 of the negative refracting power of one tool, its thing side surface 211 be that convex surface and picture side surface 212 are concave surface, and its material is plastics, the thing side surface 211 of this first lens 210 and be all aspheric surface as side surface 212;
The second lens 220 of the positive refracting power of one tool, its thing side surface 221 are that concave surface and picture side surface 222 are convex surface, and its material is plastics, the thing side surface 221 of these the second lens 220 and be all aspheric surface as side surface 222;
The 3rd lens 230 of the positive refracting power of one tool, its thing side surface 231 and be all convex surface as side surface 232, its material is plastics, the thing side surface 231 of the 3rd lens 230 and be all aspheric surface as side surface 232;
The 4th lens 240 of the negative refracting power of one tool, its thing side surface 241 is that concave surface and picture side surface 242 are convex surface, its material is plastics, the thing side surface 241 of the 4th lens 240 and be all aspheric surface as side surface 242, and the thing side surface 241 of the 4th lens 240 and all have at least one point of inflexion as side surface 242;
One aperture 200 places between this first lens 210 and this second lens 220;
Other includes an optical filter 250 and cover glass 260 places between the picture side surface 242 and an imaging surface 270 of the 4th lens 240; The material of this optical filter 250 and cover glass 260 is that glass and its do not affect the focal length of this image capture lens system of the present invention.
The equational expression of the second embodiment aspheric curve is as the pattern of the first embodiment.
In the second embodiment image capture lens system, the focal length of overall image capture lens system is f, and its relational expression is: f=3.04 (millimeter).
In the second embodiment image capture lens system, the f-number of overall image capture lens system is Fno, and its relational expression is: Fno=2.05.
In the second embodiment image capture lens system, half of maximum visual angle is HFOV in the overall image capture lens system, and its relational expression is: HFOV=37.6 (degree).
In the second embodiment image capture lens system, the abbe number of this first lens 210 is V1, and the abbe number of these the second lens 220 is V2, and its relational expression is: V2-V1=32.5.
In the second embodiment image capture lens system, the abbe number of the 3rd lens 230 is V3, and the abbe number of the 4th lens 240 is V4, and its relational expression is: V3-V4=32.5.
In the second embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of this first lens 210 is f1, and its relational expression is: f/f1=-0.15.
In the second embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens 230 is f3, and its relational expression is: f/f3=1.72.
In the second embodiment image capture lens system, the focal length of the 3rd lens 230 is f3, and the focal length of the 4th lens 240 is f4, and its relational expression is: f3/f4=-0.66.
In the second embodiment image capture lens system, these the second lens 220 be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, its relational expression is: R4/f=-0.55.
In the second embodiment image capture lens system, the thing side surface radius-of-curvature of the 3rd lens 230 is R5, the 3rd lens 230 be R6 as the side surface radius-of-curvature, its relational expression is: (R5+R6)/(R5-R6)=0.44.
In the second embodiment image capture lens system, this first lens 210 is T12 with the distance of these the second lens 220 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: T12/f=0.93.
In the second embodiment image capture lens system, the 3rd lens 230 are T34 with the distance of the 4th lens 240 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: (T34/f) * 100=5.36.
In the second embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 270 places for the object imaging thereon in addition, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface 211 of this first lens 210 is TTL to the distance of this sense electronics optical assembly on optical axis, and its relational expression is: SL/TTL=0.70.
In the second embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 270 places for the object imaging thereon in addition, the thing side surface 211 of this first lens 210 to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=4.50.
The detailed optical data of the second embodiment is shown in Fig. 8 table three, and its aspherical surface data is shown in Fig. 9 table four, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.
" the 3rd embodiment "
Third embodiment of the invention sees also Fig. 3 A, and the aberration curve of the 3rd embodiment sees also Fig. 3 B.The image capture lens system of the 3rd embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:
The first lens 310 of the negative refracting power of one tool, its thing side surface 311 be that convex surface and picture side surface 312 are concave surface, and its material is plastics, the thing side surface 311 of this first lens 310 and be all aspheric surface as side surface 312;
The second lens 320 of the positive refracting power of one tool, its thing side surface 321 are that concave surface and picture side surface 322 are convex surface, and its material is plastics, the thing side surface 321 of these the second lens 320 and be all aspheric surface as side surface 322;
The 3rd lens 330 of the positive refracting power of one tool, its thing side surface 331 and be all convex surface as side surface 332, its material is plastics, the thing side surface 331 of the 3rd lens 330 and be all aspheric surface as side surface 332;
The 4th lens 340 of the negative refracting power of one tool, its thing side surface 341 is that concave surface and picture side surface 342 are convex surface, its material is plastics, the thing side surface 341 of the 4th lens 340 and be all aspheric surface as side surface 342, and the thing side surface 341 of the 4th lens 340 and all have at least one point of inflexion as side surface 342;
One aperture 300 places between this first lens 310 and this second lens 320;
Other includes an optical filter 350 and cover glass 360 places between the picture side surface 342 and an imaging surface 370 of the 4th lens 340; The material of this optical filter 350 and cover glass 360 is that glass and its do not affect the focal length of this image capture lens system of the present invention.
The equational expression of the 3rd embodiment aspheric curve is as the pattern of the first embodiment.
In the 3rd embodiment image capture lens system, the focal length of overall image capture lens system is f, and its relational expression is: f=3.47 (millimeter).
In the 3rd embodiment image capture lens system, the f-number of overall image capture lens system is Fno, and its relational expression is: Fno=2.05.
In the 3rd embodiment image capture lens system, half of maximum visual angle is HFOV in the overall image capture lens system, and its relational expression is: HFOV=37.6 (degree).
In the 3rd embodiment image capture lens system, the abbe number of this first lens 310 is V1, and the abbe number of these the second lens 320 is V2, and its relational expression is: V2-V1=32.5.
In the 3rd embodiment image capture lens system, the abbe number of the 3rd lens 330 is V3, and the abbe number of the 4th lens 340 is V4, and its relational expression is: V3-V4=32.5.
In the 3rd embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of this first lens 310 is f1, and its relational expression is: f/f1=-0.58.
In the 3rd embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens 330 is f3, and its relational expression is: f/f3=1.26.
In the 3rd embodiment image capture lens system, the focal length of the 3rd lens 330 is f3, and the focal length of the 4th lens 340 is f4, and its relational expression is: f3/f4=-0.76.
In the 3rd embodiment image capture lens system, these the second lens 320 be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, its relational expression is: R4/f=-0.62.
In the 3rd embodiment image capture lens system, the thing side surface radius-of-curvature of the 3rd lens 330 is R5, the 3rd lens 330 be R6 as the side surface radius-of-curvature, its relational expression is: (R5+R6)/(R5-R6)=-0.05.
In the 3rd embodiment image capture lens system, this first lens 310 is T12 with the distance of these the second lens 320 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: T12/f=0.20.
In the 3rd embodiment image capture lens system, the 3rd lens 330 are T34 with the distance of the 4th lens 340 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: (T34/f) * 100=8.65.
In the 3rd embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 370 places for the object imaging thereon in addition, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface 311 of this first lens 310 is TTL to the distance of this sense electronics optical assembly on optical axis, and its relational expression is: SL/TTL=0.72.
In the 3rd embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 370 places for the object imaging thereon in addition, the thing side surface 311 of this first lens 310 to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=3.86.
The detailed optical data of the 3rd embodiment is shown in Figure 10 table five, and its aspherical surface data is shown in Figure 11 table six, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.
" the 4th embodiment "
Fourth embodiment of the invention sees also Fig. 4 A, and the aberration curve of the 4th embodiment sees also Fig. 4 B.The image capture lens system of the 4th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:
The first lens 410 of the negative refracting power of one tool, its thing side surface 411 be that convex surface and picture side surface 412 are concave surface, and its material is plastics, the thing side surface 411 of this first lens 410 and be all aspheric surface as side surface 412;
The second lens 420 of the positive refracting power of one tool, its thing side surface 421 are that concave surface and picture side surface 422 are convex surface, and its material is plastics, the thing side surface 421 of these the second lens 420 and be all aspheric surface as side surface 422;
The 3rd lens 430 of the positive refracting power of one tool, its thing side surface 431 and be all convex surface as side surface 432, its material is plastics, the thing side surface 431 of the 3rd lens 430 and be all aspheric surface as side surface 432;
The 4th lens 440 of the negative refracting power of one tool, its thing side surface 441 is that concave surface and picture side surface 442 are convex surface, its material is plastics, the thing side surface 441 of the 4th lens 440 and be all aspheric surface as side surface 442, and the thing side surface 441 of the 4th lens 440 and all have at least one point of inflexion as side surface 442;
One aperture 400 places between this first lens 410 and this second lens 420;
Other includes an optical filter 450 and cover glass 460 places between the picture side surface 442 and an imaging surface 470 of the 4th lens 440; The material of this optical filter 450 and cover glass 460 is that glass and its do not affect the focal length of this image capture lens system of the present invention.
The equational expression of the 4th embodiment aspheric curve is as the pattern of the first embodiment.
In the 4th embodiment image capture lens system, the focal length of overall image capture lens system is f, and its relational expression is: f=3.46 (millimeter).
In the 4th embodiment image capture lens system, the f-number of overall image capture lens system is Fno, and its relational expression is: Fno=2.05.
In the 4th embodiment image capture lens system, half of maximum visual angle is HFOV in the overall image capture lens system, and its relational expression is: HFOV=37.6 (degree).
In the 4th embodiment image capture lens system, the abbe number of this first lens 410 is V1, and the abbe number of these the second lens 420 is V2, and its relational expression is: V2-V1=32.5.
In the 4th embodiment image capture lens system, the abbe number of the 3rd lens 430 is V3, and the abbe number of the 4th lens 440 is V4, and its relational expression is: V3-V4=32.5.
In the 4th embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of this first lens 410 is f1, and its relational expression is: f/f1=-0.59.
In the 4th embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens 430 is f3, and its relational expression is: f/f3=1.57.
In the 4th embodiment image capture lens system, the focal length of the 3rd lens 430 is f3, and the focal length of the 4th lens 440 is f4, and its relational expression is: f3/f4=-0.68.
In the 4th embodiment image capture lens system, these the second lens 420 be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, its relational expression is: R4/f=-0.65.
In the 4th embodiment image capture lens system, the thing side surface radius-of-curvature of the 3rd lens 430 is R5, the 3rd lens 430 be R6 as the side surface radius-of-curvature, its relational expression is: (R5+R6)/(R5-R6)=0.24.
In the 4th embodiment image capture lens system, this first lens 410 is T12 with the distance of these the second lens 420 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: T12/f=0.23.
In the 4th embodiment image capture lens system, the 3rd lens 430 are T34 with the distance of the 4th lens 440 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: (T34/f) * 100=8.67.
In the 4th embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 470 places for the object imaging thereon in addition, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface 411 of this first lens 410 is TTL to the distance of this sense electronics optical assembly on optical axis, and its relational expression is: SL/TTL=0.72.
In the 4th embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 470 places for the object imaging thereon in addition, the thing side surface 411 of this first lens 410 to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=3.81.
The detailed optical data of the 4th embodiment is shown in Figure 12 table seven, and its aspherical surface data is shown in Figure 13 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.
" the 5th embodiment "
Fifth embodiment of the invention sees also Fig. 5 A, and the aberration curve of the 5th embodiment sees also Fig. 5 B.The image capture lens system of the 5th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:
The first lens 510 of the negative refracting power of one tool, its thing side surface 511 be that convex surface and picture side surface 512 are concave surface, and its material is plastics, the thing side surface 511 of this first lens 510 and be all aspheric surface as side surface 512;
The second lens 520 of the positive refracting power of one tool, its thing side surface 521 and be all convex surface as side surface 522, its material is plastics, the thing side surface 521 of these the second lens 520 and be all aspheric surface as side surface 522;
The 3rd lens 530 of the positive refracting power of one tool, its thing side surface 531 and be all convex surface as side surface 532, its material is plastics, the thing side surface 531 of the 3rd lens 530 and be all aspheric surface as side surface 532;
The 4th lens 540 of the negative refracting power of one tool, its thing side surface 541 is that concave surface and picture side surface 542 are convex surface, its material is plastics, the thing side surface 541 of the 4th lens 540 and be all aspheric surface as side surface 542, and the thing side surface 541 of the 4th lens 540 and all have at least one point of inflexion as side surface 542;
One aperture 500 places between this first lens 510 and this second lens 520;
Other includes an optical filter 550 and cover glass 560 places between the picture side surface 542 and an imaging surface 570 of the 4th lens 540; The material of this optical filter 550 and cover glass 560 is that glass and its do not affect the focal length of this image capture lens system of the present invention.
The equational expression of the 5th embodiment aspheric curve is as the pattern of the first embodiment.
In the 5th embodiment image capture lens system, the focal length of overall image capture lens system is f, and its relational expression is: f=4.59 (millimeter).
In the 5th embodiment image capture lens system, the f-number of overall image capture lens system is Fno, and its relational expression is: Fno=2.40.
In the 5th embodiment image capture lens system, half of maximum visual angle is HFOV in the overall image capture lens system, and its relational expression is: HFOV=30.1 (degree).
In the 5th embodiment image capture lens system, the abbe number of this first lens 510 is V1, and the abbe number of these the second lens 520 is V2, and its relational expression is: V2-V1=25.7.
In the 5th embodiment image capture lens system, the abbe number of the 3rd lens 530 is V3, and the abbe number of the 4th lens 540 is V4, and its relational expression is: V3-V4=32.5.
In the 5th embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of this first lens 510 is f1, and its relational expression is: f/f1=-0.67.
In the 5th embodiment image capture lens system, the focal length of overall image capture lens system is f, and the focal length of the 3rd lens 530 is f3, and its relational expression is: f/f3=1.25.
In the 5th embodiment image capture lens system, the focal length of the 3rd lens 530 is f3, and the focal length of the 4th lens 540 is f4, and its relational expression is: f3/f4=-0.91.
In the 5th embodiment image capture lens system, these the second lens 520 be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, its relational expression is: R4/f=-0.77.
In the 5th embodiment image capture lens system, the thing side surface radius-of-curvature of the 3rd lens 530 is R5, the 3rd lens 530 be R6 as the side surface radius-of-curvature, its relational expression is: (R5+R6)/(R5-R6)=-0.27.
In the 5th embodiment image capture lens system, this first lens 510 is T12 with the distance of these the second lens 520 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: T12/f=0.46.
In the 5th embodiment image capture lens system, the 3rd lens 530 are T34 with the distance of the 4th lens 540 on optical axis, and the focal length of overall image capture lens system is f, and its relational expression is: (T34/f) * 100=8.71.
In the 5th embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 570 places for the object imaging thereon in addition, this aperture to the distance of this sense electronics optical assembly on optical axis is SL, the thing side surface 511 of this first lens 510 is TTL to the distance of this sense electronics optical assembly on optical axis, and its relational expression is: SL/TTL=0.78.
In the 5th embodiment image capture lens system, this image capture lens system arranges a sense electronics optical assembly in these imaging surface 570 places for the object imaging thereon in addition, the thing side surface 511 of this first lens 510 to the distance of this sense electronics optical assembly on optical axis is TTL, and half of this sense electronics optical assembly effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=3.74.
The detailed optical data of the 5th embodiment is shown in Figure 14 table nine, and its aspherical surface data is shown in Figure 15 table ten, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.
Table one is depicted as the different numerical value change tables of image capture lens system embodiment of the present invention to table ten (corresponding diagram 6 is to Figure 15 respectively); the all true gained of testing of numerical value change of right each embodiment of the present invention; even use different numerical value; the product of same structure must belong to protection category of the present invention; so above explanation is described and be graphic only as exemplary, non-in order to limit claim of the present invention.Table ten one (corresponding Figure 16) is the numerical data of the corresponding correlationship formula of the present invention of each embodiment.

Claims (25)

1. an image capture lens system is characterized in that, is extremely sequentially comprised as side by the thing side:
The first lens of the negative refracting power of one tool, it is concave surface as side surface;
The second lens of the positive refracting power of one tool, it is convex surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface;
The 4th lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, its thing side surface and be all aspheric surface as side surface, its thing side surface and have at least one point of inflexion as at least one surface in the side surface; And
One aperture is arranged between described first lens and described the second lens;
Wherein, the lens of tool refracting power are four in the described image capture lens system, described the second lens be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, described the 3rd lens and the distance of described the 4th lens on optical axis are T34, satisfy following relationship:
-2.0<R4/f<-0.2；
0.5<(T34/f)*100<20.0。
2. image capture lens system as claimed in claim 1 is characterized in that, the thing side surface of described the 3rd lens and be all convex surface as side surface, the thing side surface of described the 3rd lens and be all aspheric surface as side surface.
3. image capture lens system as claimed in claim 2 is characterized in that, the thing side surface of described first lens is convex surface.
4. image capture lens system as claimed in claim 3 is characterized in that, the material of at least three lens is plastics in the described image capture lens system, and the thing side surface of the described first, second, third and the 4th lens and be all aspheric surface as side surface.
5. image capture lens system as claimed in claim 1 is characterized in that, the focal length of overall image capture lens system is f, and the focal length of described the 3rd lens is f3, satisfies following relationship:
0.80<f/f3<2.40。
6. image capture lens system as claimed in claim 5 is characterized in that, the focal length of overall image capture lens system is f, and the focal length of described the 3rd lens is f3, satisfies following relationship:
1.25<f/f3<1.75。
7. image capture lens system as claimed in claim 4 is characterized in that, the focal length of overall image capture lens system is f, and the focal length of described first lens is f1, satisfies following relationship:
-1.00<f/f1<-0.30。
8. image capture lens system as claimed in claim 4 is characterized in that, the abbe number of described the 3rd lens is V3, and the abbe number of described the 4th lens is V4, satisfies following relationship:
23.0<V3-V4<46.0。
9. image capture lens system as claimed in claim 8 is characterized in that, the abbe number of described the 3rd lens is V3, and the abbe number of described the 4th lens is V4, satisfies following relationship:
30.0<V3-V4<40.0。
10. image capture lens system as claimed in claim 9 is characterized in that, the abbe number of described first lens is V1, and the abbe number of described the second lens is V2, satisfies following relationship:
30.0<V2-V1<40.0。
11. image capture lens system as claimed in claim 2 is characterized in that, described the 3rd lens and the distance of described the 4th lens on optical axis are T34, and the focal length of overall image capture lens system is f, satisfies following relationship:
4.0<(T34/f)*100<12.0。
12. image capture lens system as claimed in claim 3 is characterized in that, described the second lens be R4 as the side surface radius-of-curvature, the focal length of overall image capture lens system is f, satisfies following relationship:
-1.0<R4/f<-0.5。
13. image capture lens system as claimed in claim 2, it is characterized in that, described image capture lens system arranges a sense electronics optical assembly in addition for the object imaging, described aperture to the distance of described sense electronics optical assembly on optical axis is SL, the thing side surface of described first lens to the distance of described sense electronics optical assembly on optical axis is TTL, satisfies following relationship:
0.65<SL/TTL<0.90。
14. image capture lens system as claimed in claim 13 is characterized in that, described first lens and the distance of described the second lens on optical axis are T12, and the focal length of overall image capture lens system is f, satisfies following relationship:
0.05<T12/f<1.20。
15. image capture lens system as claimed in claim 14 is characterized in that, described first lens and the distance of described the second lens on optical axis are T12, and the focal length of overall image capture lens system is f, satisfies following relationship:
0.10<T12/f<0.50。
16. image capture lens system as claimed in claim 13 is characterized in that, the focal length of described the 3rd lens is f3, and the focal length of described the 4th lens is f4, satisfies following relationship:
-1.00<f3/f4<-0.50。
17. image capture lens system as claimed in claim 1 is characterized in that, the thing side surface radius-of-curvature of described the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, satisfies following relationship:
-0.50<(R5+R6)/(R5-R6)<0.70。
18. image capture lens system as claimed in claim 1, it is characterized in that, described image capture lens system arranges a sense electronics optical assembly in addition for the object imaging, the thing side surface of described first lens to the distance of described sense electronics optical assembly on optical axis is TTL, and half of described sense electronics optical assembly effective pixel area diagonal line length is ImgH, satisfies following relationship:
TTL/ImgH<5.0。
19. an image capture lens system is characterized in that, is extremely sequentially comprised as side by the thing side:
The first lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface;
The second lens of the positive refracting power of one tool, it is convex surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface and be aspheric surface as at least one surface in the side surface;
The 4th lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, its thing side surface and be all aspheric surface as side surface, its thing side surface and have at least one point of inflexion as at least one surface in the side surface; And
One aperture is arranged between described first lens and described the second lens;
Wherein, the lens of tool refracting power are four in the described image capture lens system, and the focal length of overall image capture lens system is f, and the focal length of described the 3rd lens is f3, described the 3rd lens and the distance of described the 4th lens on optical axis are T34, satisfy following relationship:
0.80<f/f3<2.40；
0.5<(T34/f)*100<20.0。
20. image capture lens system as claimed in claim 19 is characterized in that, the thing side surface of described the 3rd lens and be all aspheric surface as side surface.
21. image capture lens system as claimed in claim 20, it is characterized in that, the material of at least three lens is plastics in the described image capture lens system, and the thing side surface of the described first, second, third and the 4th lens and be all aspheric surface as side surface.
22. image capture lens system as claimed in claim 20 is characterized in that, the focal length of overall image capture lens system is f, and the focal length of described the 3rd lens is f3, satisfies following relationship:
1.25<f/f3<1.75。
23. image capture lens system as claimed in claim 19 is characterized in that, described first lens and the distance of described the second lens on optical axis are T12, and the focal length of overall image capture lens system is f, satisfies following relationship:
0.10<T12/f<0.50。
24. image capture lens system as claimed in claim 19 is characterized in that, the abbe number of described first lens is V1, the abbe number of described the second lens is V2, the abbe number of described the 3rd lens is V3, and the abbe number of described the 4th lens is V4, satisfies following relationship:
30.0<V2-V1<40.0；
30.0<V3-V4<40.0。
25. image capture lens system as claimed in claim 21 is characterized in that, the thing side surface radius-of-curvature of described the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, satisfies following relationship:
-0.50<(R5+R6)/(R5-R6)<0.70。
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CN104297905B (en) * 2014-09-22 2017-04-26 青岛歌尔声学科技有限公司 Wide-angle lens
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