CN103163630B - Five-lens-type imaging lens group - Google Patents
Five-lens-type imaging lens group Download PDFInfo
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- CN103163630B CN103163630B CN201110412718.8A CN201110412718A CN103163630B CN 103163630 B CN103163630 B CN 103163630B CN 201110412718 A CN201110412718 A CN 201110412718A CN 103163630 B CN103163630 B CN 103163630B
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- 238000003384 imaging method Methods 0.000 title claims abstract description 102
- 239000000463 material Substances 0.000 claims description 59
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- 230000015572 biosynthetic process Effects 0.000 claims description 46
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- 238000001914 filtration Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 239000006059 cover glass Substances 0.000 description 7
- 230000004075 alteration Effects 0.000 description 4
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Abstract
The invention relates to a five-lens-type imaging lens group. The five-lens-type imaging lens group sequentially comprises a diaphragm, a first lens with positive refraction power, a second lens with negative refraction power, a third lens with positive refraction power, a fourth lens and a fifth lens with negative refraction power from the object side to the image side. The image side surface of the first lens is a convex surface, and at least one of the object side surface of the first lens and the image side surface of the first lens is an aspheric surface. The image side surface of the second lens is a concave surface, and at least one of the object side surface of the second lens and the image side surface of the second lens is an aspheric surface. The image side surface of the third lens is a convex surface, and at least one of the object side surface of the third lens and the image side surface of the third lens is an aspheric surface. The object side surface of the fourth lens is a concave surface, and at least one of the object side surface of the fourth lens and the image side surface of the fourth lens is an aspheric surface. The image side surface of the fifth lens is a convex surface, and at least one of the object side surface of the fifth lens and the image side surface of the fifth lens is an aspheric surface. The five-lens-type imaging lens group is applied to high-pixel cell phones and cameras, and the total length of camera lenses can not be excessively long.
Description
Technical field
The present invention relates to a kind of optical lens, refer to a kind of five chip imaging lens set especially.
Background technology
Recent years, along with the rise of mobile phone camera, 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, or Complementary Metal Oxide semiconductor (Complementary Metal-Oxide Semiconductor CCD), CMOS) two kinds, due to the progress of manufacture of semiconductor technology, the picture element area of photosensory assembly is reduced, miniaturization phtographic lens is gradually toward the development of high picture element field, therefore, the requirement of image quality is also increased day by day.
Tradition is equipped on the miniaturization phtographic lens on portable electronic product, many employings quadruple lenses structure is main, but because the picture element of mobile phone camera is very fastly soaring, the picture element area of photosensory assembly reduces gradually, and when the requirement of system imaging quality improves constantly, common quadruple lenses group cannot meet the phtographic lens module of more high-order, and electronic product is constantly toward lightening, high performance trend development.
Summary of the invention
The object of the present invention is to provide a kind of five chip imaging lens set, it can be applicable to high picture element mobile phone camera, and is unlikely to the imaging lens set that makes camera lens total length long.
The invention provides a kind of five chip imaging lens set, sequentially comprised to image side by thing side: Yi Guanglan; First eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of this first eyeglass and surface, image side are at least simultaneously aspheric surface; One tool bears the second eyeglass of refracting power, and its surface, image side is concave surface, and the thing side surface of this second eyeglass and surface, image side are at least simultaneously aspheric surface; 3rd eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of the 3rd eyeglass and surface, image side are at least simultaneously aspheric surface; One the 4th eyeglass, its thing side surface is concave surface, and the thing side surface of the 4th eyeglass and surface, image side are at least simultaneously aspheric surface; One tool bears the 5th eyeglass of refracting power, and its thing side surface is convex surface, and the thing side surface of the 5th eyeglass and surface, image side are at least simultaneously aspheric surface.
A kind of five chip imaging lens set, are sequentially comprised to image side by thing side:
One smooth hurdle;
First eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of this first eyeglass and surface, image side are at least simultaneously aspheric surface;
One tool bears the second eyeglass of refracting power, and its surface, image side is concave surface, and the thing side surface of this second eyeglass and surface, image side are at least simultaneously aspheric surface;
3rd eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of the 3rd eyeglass and surface, image side are at least simultaneously aspheric surface;
One the 4th eyeglass, its thing side surface is concave surface, and the thing side surface of the 4th eyeglass and surface, image side are at least simultaneously aspheric surface;
One tool bears the 5th eyeglass of refracting power, and its thing side surface is convex surface, and the thing side surface of the 5th eyeglass and surface, image side are at least simultaneously aspheric surface.
Five above-mentioned chip imaging lens set, wherein the focal length of this first eyeglass is f1, and the focal length of this second eyeglass is f2, and both meet following relationship: 0.3 < | f1|/| f2| < 1.0.
Five described chip imaging lens set, wherein the focal length of this second eyeglass is f2, and the focal length of the 3rd eyeglass is f3, and both meet following relationship: 0.5 < | f2|/| f3| < 2.2.
Five described chip imaging lens set, wherein the focal length of the 3rd eyeglass is f3, and the focal length of the 4th eyeglass is f4, and both meet following relationship: | f3|/| f4| < 1.2.
Five described chip imaging lens set, wherein the focal length of the 4th eyeglass is f4, and the focal length of the 5th eyeglass is f5, and both meet following relationship: 1.0 < | f4|/| f5| < 5.5.
Five described chip imaging lens set, wherein the refractive index of this second eyeglass is N2, and the Abbe number of this second eyeglass is V2, meets following relationship:
N2＞1.57；
V2＜40。
Five described chip imaging lens set, wherein the focal length of this first eyeglass is f1, and the synthesis focal length of this second eyeglass, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f2345, meets following relationship: | f1|/| f2345| < 1.1.
Five described chip imaging lens set, wherein the focal length of the synthesis of this first eyeglass and the second eyeglass is f12, the synthesis focal length of the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f345, meets following relationship: | f12|/| f345| < 2.5.
Five described chip imaging lens set, wherein the focal length of the synthesis of this first eyeglass, the second eyeglass and the 3rd eyeglass is f123, the synthesis focal length of the 4th eyeglass and the 5th eyeglass is f45, meets following relationship: | f123|/| f45| < 1.2.
Five described chip imaging lens set, wherein the entirety synthesis focal length of this five chips imaging lens set is f, the thing side surface of this first eyeglass is TL to the distance between imaging surface, and both meet following relationship: 0.5 < | f/TL| < 0.9.
Five described chip imaging lens set, wherein the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is convex surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is concave surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
Five described chip imaging lens set, wherein the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is concave surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is concave surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
Five described chip imaging lens set, wherein the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is convex surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is convex surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
The present invention five chip imaging lens set, the focal length of this first eyeglass is f1, and the focal length of this second eyeglass is f2, and both meet following relationship: 0.3 < | f1|/| f2| < 1.0.When | f1|/| f2| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the focal length of this second eyeglass is f2, and the focal length of the 3rd eyeglass is f3, and both meet following relationship: 0.5 < | f2|/| f3| < 2.2.When | f2|/| f3| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the focal length of the 3rd eyeglass is f3, and the focal length of the 4th eyeglass is f4, and both meet following relationship: | f3|/| f4| < 1.2.When | f3|/| f4| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the focal length of the 4th eyeglass is f4, and the focal length of the 5th eyeglass is f5, and both meet following relationship: 1.0 < | f4|/| f5| < 5.5.When | f4|/| f5| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the refractive index of this second eyeglass is N2, and the Abbe number of this second eyeglass is V2, meets following relationship: N2 > 1.57; V2 < 40.When N2 and V2 meets foregoing relationships, then reach while reduced volume, also can have concurrently and can effectively make the peripheral image planes of image flatten, to promote the image quality (i.e. limb darkening) of image periphery, and eyeglass arrangement mode and configuration to have optical full length shorter, sufficient space configuration can be had for infrared ray filtering optical filter.
The present invention five chip imaging lens set, the focal length of this first eyeglass is f1, and the synthesis focal length of this second eyeglass, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f2345, meets following relationship: | f1|/| f2345| < 1.1.When | f1|/| f2345| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the focal length of the synthesis of this first eyeglass and the second eyeglass is f12, and the synthesis focal length of the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f345, meets following relationship: | f12|/| f345| < 2.5.When | f12|/| f345| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, the focal length of the synthesis of this first eyeglass, the second eyeglass and the 3rd eyeglass is f123, and the synthesis focal length of the 4th eyeglass and the 5th eyeglass is f45, meets following relationship: | f123|/| f45| < 1.2.When | f123|/| f45| meets foregoing relationships, then this imaging lens set can be made to draw angle greatly possessing, and resolving power significantly promotes simultaneously, otherwise, if exceed the data value range of above-mentioned optical profile type, then the performance of wide-angle image lens set, resolving power can be caused low, and the problem such as yield is not enough.
The present invention five chip imaging lens set, wherein the entirety synthesis focal length of this five chips imaging lens set is f, the thing side surface of this first eyeglass is TL to the distance between imaging surface, and both meet following relationship: 0.5 < | f/TL| < 0.9.When | f/TL| meets foregoing relationships, then can have optical full length shorter, reaches the feature of more small portable.
Accompanying drawing explanation
Figure 1A is the optical schematic diagram of first embodiment of the invention;
Figure 1B is first embodiment of the invention sphere, non-dots and distortion astigmat line chart;
Fig. 2 A is the optical schematic diagram of second embodiment of the invention;
Fig. 2 B is second embodiment of the invention sphere, non-dots and distortion astigmat line chart;
Fig. 3 A is the optical schematic diagram of third embodiment of the invention;
Fig. 3 B is third embodiment of the invention sphere, non-dots and distortion astigmat line chart;
Fig. 4 A is the optical schematic diagram of fourth embodiment of the invention;
Fig. 4 B is fourth embodiment of the invention sphere, non-dots and distortion astigmat line chart.
Subordinate list explanation
Table one first embodiment optical data;
Table two first embodiment aspherical surface data;
Table three second embodiment optical data;
Table four second embodiment aspherical surface data;
Table five the 3rd embodiment optical data;
Table six the 3rd embodiment aspherical surface data;
Table seven the 4th embodiment optical data;
Table eight the 4th embodiment aspherical surface data;
The numerical data of table nine correlationship formula of the present invention.
Description of reference numerals
100,200,300,400 is light hurdles
110,210,310,410 is first eyeglasses
111,211,311,411 is thing side surfaces of the first eyeglass
112,212,312,412 be the first eyeglass image side surface
120,220,320,420 is second eyeglasses
121,221,321,421 is thing side surfaces of the second eyeglass
122,222,322,422 be the second eyeglass image side surface
130,230,330,430 is the 3rd eyeglasses
131,231,331,431 is thing side surfaces of the 3rd eyeglass
132,232,332,432 be the 3rd eyeglass image side surface
140,240,340,440 is the 4th eyeglasses
141,241,341,441 is thing side surfaces of the 4th eyeglass
142,242,342,442 be the 4th eyeglass image side surface
150,250,350,450 is the 5th eyeglasses
151,251,351,451 is thing side surfaces of the 5th eyeglass
152,252,352,452 be the 5th eyeglass image side surface
160,260,360,460 is infrared ray filtering optical filter (IR Filter)
170,270,370,470 is imaging surfaces
180,280,380,480 is optical axises
390,490 is cover glass (Cover Glass)
Embodiment
The present invention for reaching above-mentioned purpose, the technology adopted, means and other effects, hereby lift four better possible embodiments coordinate graphic being described in detail as follows:
First embodiment
The one that first embodiment of the invention provides five imaging lens set, refer to Figure 1A, 1B, this Figure 1A is five chip imaging eyeglass group configuration schematic diagram of first embodiment of the invention, and Figure 1B is first embodiment of the invention aberration curve figure, and the first embodiment comprises from thing side A to image side B:
One smooth hurdle 100.
First eyeglass 110 of the positive refracting power of one tool, its material is plastics, and the thing side surface 111 of this first eyeglass 110 is convex surface, this surface, image side 112 is convex surface, and thing side surface 111 and the surface, image side 112 of this first eyeglass 110 are all set to aspheric surface.
One tool bears the second eyeglass 120 of refracting power, and its material is plastics, and the thing side surface 121 of this second eyeglass 120 is convex surface, this surface, image side 122 is concave surface, and thing side surface 121 and the surface, image side 122 of this second eyeglass 120 are all set to aspheric surface.
3rd eyeglass 130 of the positive refracting power of one tool, its material is plastics, and the thing side surface 131 of the 3rd eyeglass 130 is concave surface, this surface, image side 132 is convex surface, and thing side surface 131 and the surface, image side 132 of the 3rd eyeglass 130 are all set to aspheric surface.
One tool bears the 4th eyeglass 140 of refracting power, and its material is plastics, and the thing side surface 141 of the 4th eyeglass 140 is concave surface, this surface, image side 142 is convex surface, and thing side surface 141 and the surface, image side 142 of the 4th eyeglass 140 are all set to aspheric surface.
One tool bears the 5th eyeglass 150 of refracting power, and its material is plastics, and the thing side surface 151 of the 5th eyeglass 150 is convex surface, this surface, image side 152 is concave surface, and thing side surface 151 and the surface, image side 152 of the 5th eyeglass 150 are all set to aspheric surface.
One infrared ray filtering optical filter (IR-filter) 160, it is located between the 5th surface, eyeglass 150 image side 152 and an imaging surface 170, and the material of this infrared ray filtering optical filter 160 is glass and does not affect the focal length of this five chips imaging lens set.
The equation of above-mentioned aspheric curve is expressed as follows:
Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 180 direction; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... for order aspherical coefficients.
In first embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and its relational expression is: f=3.69.
In first embodiment, the overall f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.
In first embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is:
In first embodiment, the refractive index of this second eyeglass 120 is N2, and the Abbe number of this second eyeglass 120 is V2, and its relational expression is: N2=1.632; V2=23.
In first embodiment, the focal length of this first eyeglass 110 is f1, and the focal length of this second eyeglass 120 is f2, and its relational expression is: | f1|/| f2|=0.5141.
In first embodiment, the focal length of this second eyeglass 120 is f2, and the focal length of the 3rd eyeglass 130 is f3, and its relational expression is: | f2|/| f3|=1.8163.
In first embodiment, the focal length of the 3rd eyeglass 130 is f3, and the focal length of the 4th eyeglass 140 is f4, and its relational expression is: | f3|/| f4|=0.2049.
In first embodiment, the focal length of the 4th eyeglass 140 is f4, and the focal length of the 5th eyeglass 150 is f5, and its relational expression is: | f4|/| f5|=3.9554.
In first embodiment, the focal length of this first eyeglass 110 is f1, and the synthesis focal length of this second eyeglass 120, the 3rd eyeglass 130, the 4th eyeglass 140 and the 5th eyeglass 150 is f2345, and its relational expression is: | f1|/| f2345|=0.5012.
In first embodiment, the focal length of the synthesis of this first eyeglass 110 and the second eyeglass 120 is f12, and the synthesis focal length of the 3rd eyeglass 130, the 4th eyeglass 140 and the 5th eyeglass 150 is f345, and its relational expression is: | f12|/| f345|=0.1175.
In first embodiment, the focal length of the synthesis of this first eyeglass 110, second eyeglass 120 and the 3rd eyeglass 130 is f123, and the synthesis focal length of the 4th eyeglass 140 and the 5th eyeglass 150 is f45, and its relational expression is: | f123|/| f45|=0.9422.
In first embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and the thing side surface 111 of this first eyeglass 110 is TL to the distance between imaging surface 170, and its relational expression is: | f/TL|=0.7432.
The detailed structured data of first embodiment is as shown in table one, its aspherical surface data is as shown in table two, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table, surface 2 contained in two, 3 things being respectively this first eyeglass 110, resemble side surface 111, 112, surface 4, 5 things being respectively this second eyeglass 120, resemble side surface 121, 122, surface 6, 7 things being respectively the 3rd eyeglass 130, resemble side surface 131, 132, surface 8, 9 things being respectively the 4th eyeglass 140, resemble side surface 141, 142, surface 10, 11 things being respectively the 5th eyeglass 150, resemble side surface 151, 152.
Second embodiment
The one that second embodiment of the invention provides five imaging lens set, refer to Fig. 2 A, 2B, this Fig. 2 A is five chip imaging eyeglass group configuration schematic diagram of second embodiment of the invention, and Fig. 2 B is second embodiment of the invention aberration curve figure, and the second embodiment comprises from thing side A to image side B:
One smooth hurdle 200.
First eyeglass 210 of the positive refracting power of one tool, its material is plastics, and the thing side surface 211 of this first eyeglass 210 is convex surface, this surface, image side 212 is convex surface, and thing side surface 211 and the surface, image side 212 of this first eyeglass 210 are all set to aspheric surface.
One tool bears the second eyeglass 220 of refracting power, and its material is plastics, and the thing side surface 221 of this second eyeglass 220 is convex surface, this surface, image side 222 is concave surface, and thing side surface 221 and the surface, image side 222 of this second eyeglass 220 are all set to aspheric surface.
3rd eyeglass 230 of the positive refracting power of one tool, its material is plastics, and the thing side surface 231 of the 3rd eyeglass 230 is concave surface, this surface, image side 232 is convex surface, and thing side surface 231 and the surface, image side 232 of the 3rd eyeglass 230 are all set to aspheric surface.
One tool bears the 4th eyeglass 240 of refracting power, and its material is plastics, and the thing side surface 241 of the 4th eyeglass 240 is concave surface, this surface, image side 242 is convex surface, and thing side surface 241 and the surface, image side 242 of the 4th eyeglass 240 are all set to aspheric surface.
One tool bears the 5th eyeglass 250 of refracting power, and its material is plastics, and the thing side surface 251 of the 5th eyeglass 250 is convex surface, this surface, image side 252 is concave surface, and thing side surface 251 and the surface, image side 252 of the 5th eyeglass 250 are all set to aspheric surface.
One infrared ray filtering optical filter (IR-filter) 260, it is located between the 5th surface, eyeglass 250 image side 252 and an imaging surface 270, and the material of this infrared ray filtering optical filter 260 is glass and does not affect the focal length of this five chips imaging lens set.
The equation of above-mentioned aspheric curve is expressed as follows:
Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 280 direction; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... for order aspherical coefficients.
In second embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and its relational expression is: f=2.86.
In second embodiment, the overall f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.4.
In second embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is:
In second embodiment, the refractive index of this second eyeglass 220 is N2, and the Abbe number of this second eyeglass 220 is V2, and its relational expression is: N2=1.632; V2=23.
In second embodiment, the focal length of this first eyeglass 210 is f1, and the focal length of this second eyeglass 220 is f2, and its relational expression is: | f1|/| f2|=0.5715.
In second embodiment, the focal length of this second eyeglass 220 is f2, and the focal length of the 3rd eyeglass 230 is f3, and its relational expression is: | f2|/| f3|=1.0748.
In second embodiment, the focal length of the 3rd eyeglass 230 is f3, and the focal length of the 4th eyeglass 240 is f4, and its relational expression is: | f3|/| f4|=0.0627.
In second embodiment, the focal length of the 4th eyeglass 240 is f4, and the focal length of the 5th eyeglass 250 is f5, and its relational expression is: | f4|/| f5|=5.4373.
In second embodiment, the focal length of this first eyeglass 210 is f1, and the synthesis focal length of this second eyeglass 220, the 3rd eyeglass 230, the 4th eyeglass 240 and the 5th eyeglass 250 is f2345, and its relational expression is: | f1|/| f2345|=0.0890.
In second embodiment, the focal length of the synthesis of this first eyeglass 210 and the second eyeglass 220 is f12, and the synthesis focal length of the 3rd eyeglass 230, the 4th eyeglass 240 and the 5th eyeglass 250 is f345, and its relational expression is: | f12|/| f345|=0.8478.
In second embodiment, the focal length of the synthesis of this first eyeglass 210, second eyeglass 220 and the 3rd eyeglass 230 is f123, and the synthesis focal length of the 4th eyeglass 240 and the 5th eyeglass 250 is f45, and its relational expression is: | f123|/| f45|=0.2889.
In second embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and the thing side surface 211 of this first eyeglass 210 is TL to the distance between imaging surface 270, and its relational expression is: | f/TL|=0.6526.
The detailed structured data of second embodiment is as shown in table three, its aspherical surface data is as shown in table four, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table three, surface 2 contained in four, 3 things being respectively this first eyeglass 210, resemble side surface 211, 212, surface 4, 5 things being respectively this second eyeglass 220, resemble side surface 221, 222, surface 6, 7 things being respectively the 3rd eyeglass 230, resemble side surface 231, 232, surface 8, 9 things being respectively the 4th eyeglass 240, resemble side surface 241, 242, surface 10, 11 things being respectively the 5th eyeglass 250, resemble side surface 251, 252.
3rd embodiment
The one that third embodiment of the invention provides five imaging lens set, refer to Fig. 3 A, 3B, this Fig. 3 A is five chip imaging eyeglass group configuration schematic diagram of third embodiment of the invention, and Fig. 3 B is third embodiment of the invention aberration curve figure, and the 3rd embodiment comprises from thing side A to image side B:
One smooth hurdle 300.
First eyeglass 310 of the positive refracting power of one tool, its material is plastics, and the thing side surface 311 of this first eyeglass 310 is convex surface, this surface, image side 312 is convex surface, and thing side surface 311 and the surface, image side 312 of this first eyeglass 310 are all set to aspheric surface.
One tool bears the second eyeglass 320 of refracting power, and its material is plastics, and the thing side surface 321 of this second eyeglass 320 is concave surface, this surface, image side 322 is concave surface, and thing side surface 321 and the surface, image side 322 of this second eyeglass 320 are all set to aspheric surface.
3rd eyeglass 330 of the positive refracting power of one tool, its material is plastics, and the thing side surface 331 of the 3rd eyeglass 330 is concave surface, this surface, image side 332 is convex surface, and thing side surface 331 and the surface, image side 332 of the 3rd eyeglass 330 are all set to aspheric surface.
One tool bears the 4th eyeglass 340 of refracting power, and its material is plastics, and the thing side surface 341 of the 4th eyeglass 340 is concave surface, this surface, image side 342 is convex surface, and thing side surface 341 and the surface, image side 342 of the 4th eyeglass 340 are all set to aspheric surface.
One tool bears the 5th eyeglass 350 of refracting power, and its material is plastics, and the thing side surface 351 of the 5th eyeglass 350 is convex surface, this surface, image side 352 is concave surface, and thing side surface 351 and the surface, image side 352 of the 5th eyeglass 350 are all set to aspheric surface.
One infrared ray filtering optical filter (IR-filter) 360, it is located between the 5th surface, eyeglass 350 image side 352 and an imaging surface 370, and the material of this infrared ray filtering optical filter 360 is glass and does not affect the focal length of this five chips imaging lens set.
One cover glass (Cover Glass) 390; it is located between this infrared ray filtering optical filter 360 and this imaging surface 370; make the material of this cover glass 390 be glass and do not affect the focal length of this five chips imaging lens set, sensing component (figure does not show) protected by this cover glass 390.
The equation of above-mentioned aspheric curve is expressed as follows:
Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 380 direction; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... for order aspherical coefficients.
In 3rd embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and its relational expression is: f=5.63.
In 3rd embodiment, the overall f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.8.
In 3rd embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is:
In 3rd embodiment, the refractive index of this second eyeglass 320 is N2, and the Abbe number of this second eyeglass 320 is V2, and its relational expression is: N2=1.607; V2=27.
In 3rd embodiment, the focal length of this first eyeglass 310 is f1, and the focal length of this second eyeglass 320 is f2, and its relational expression is: | f1|/| f2|=0.6079.
In 3rd embodiment, the focal length of this second eyeglass 320 is f2, and the focal length of the 3rd eyeglass 330 is f3, and its relational expression is: | f2|/| f3|=0.6935.
In 3rd embodiment, the focal length of the 3rd eyeglass 330 is f3, and the focal length of the 4th eyeglass 340 is f4, and its relational expression is: | f3|/| f4|=0.2579.
In 3rd embodiment, the focal length of the 4th eyeglass 340 is f4, and the focal length of the 5th eyeglass 350 is f5, and its relational expression is: | f4|/| f5|=3.8177.
In 3rd embodiment, the focal length of this first eyeglass 310 is f1, and the synthesis focal length of this second eyeglass 320, the 3rd eyeglass 330, the 4th eyeglass 340 and the 5th eyeglass 350 is f2345, and its relational expression is: | f1|/| f2345|=0.7966.
In 3rd embodiment, the focal length of the synthesis of this first eyeglass 310 and the second eyeglass 320 is f12, and the synthesis focal length of the 3rd eyeglass 330, the 4th eyeglass 340 and the 5th eyeglass 350 is f345, and its relational expression is: | f12|/| f345|=0.1362.
In 3rd embodiment, the focal length of the synthesis of this first eyeglass 310, second eyeglass 320 and the 3rd eyeglass 330 is f123, and the synthesis focal length of the 4th eyeglass 340 and the 5th eyeglass 350 is f45, and its relational expression is: | f123|/| f45|=0.7710.
In 3rd embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and the thing side surface 311 of this first eyeglass 310 is TL to the distance between imaging surface 370, and its relational expression is: | f/TL|=0.8014.
The detailed structured data of 3rd embodiment is as shown in table five, its aspherical surface data is as shown in table six, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table five, surface 2 contained in six, 3 things being respectively this first eyeglass 310, resemble side surface 311, 312, surface 4, 5 things being respectively this second eyeglass 320, resemble side surface 321, 322, surface 6, 7 things being respectively the 3rd eyeglass 330, resemble side surface 331, 332, surface 8, 9 things being respectively the 4th eyeglass 340, resemble side surface 341, 342, surface 10, 11 things being respectively the 5th eyeglass 350, resemble side surface 351, 352.
4th embodiment
The one that fourth embodiment of the invention provides five imaging lens set, refer to Fig. 4 A, 4B, this Fig. 4 A is five chip imaging eyeglass group configuration schematic diagram of fourth embodiment of the invention, and Fig. 4 B is fourth embodiment of the invention aberration curve figure, and the 4th embodiment comprises from thing side A to image side B:
One smooth hurdle 400.
First eyeglass 410 of the positive refracting power of one tool, its material is plastics, and the thing side surface 411 of this first eyeglass 410 is convex surface, this surface, image side 412 is convex surface, and thing side surface 411 and the surface, image side 412 of this first eyeglass 410 are all set to aspheric surface.
One tool bears the second eyeglass 420 of refracting power, and its material is plastics, and the thing side surface 421 of this second eyeglass 420 is convex surface, this surface, image side 422 is concave surface, and thing side surface 421 and the surface, image side 422 of this second eyeglass 420 are all set to aspheric surface.
3rd eyeglass 430 of the positive refracting power of one tool, its material is plastics, and the thing side surface 431 of the 3rd eyeglass 430 is convex surface, this surface, image side 432 is concave surface, and thing side surface 431 and the surface, image side 432 of the 3rd eyeglass 430 are all set to aspheric surface.
4th eyeglass 440 of the positive refracting power of one tool, its material is plastics, and the thing side surface 441 of the 4th eyeglass 440 is concave surface, this surface, image side 442 is convex surface, and thing side surface 441 and the surface, image side 442 of the 4th eyeglass 440 are all set to aspheric surface.
One tool bears the 5th eyeglass 450 of refracting power, and its material is plastics, and the thing side surface 451 of the 5th eyeglass 450 is convex surface, this surface, image side 452 is concave surface, and thing side surface 451 and the surface, image side 452 of the 5th eyeglass 450 are all set to aspheric surface.
One infrared ray filtering optical filter (IR-fi lter) 460, it is located between the 5th surface, eyeglass 450 image side 452 and an imaging surface 470, and the material of this infrared ray filtering optical filter 460 is glass and does not affect the focal length of this five chips imaging lens set.
One cover glass (Cover Glass) 490; it is located between this infrared ray filtering optical filter 460 and this imaging surface 470; make the material of this cover glass 490 be glass and do not affect the focal length of this five chips imaging lens set, sensing component (figure does not show) protected by this cover glass 490.
The equation of above-mentioned aspheric curve is expressed as follows:
Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 480 direction; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... for order aspherical coefficients.
In 4th embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and its relational expression is: f=5.06.
In 4th embodiment, the overall f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.8.
In 4th embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is:
In 4th embodiment, the refractive index of this second eyeglass 420 is N2, and the Abbe number of this second eyeglass 420 is V2, and its relational expression is: N2=1.607; V2=27.
In 4th embodiment, the focal length of this first eyeglass 410 is f1, and the focal length of this second eyeglass 420 is f2, and its relational expression is: | f1|/| f2|=0.8434.
In 4th embodiment, the focal length of this second eyeglass 420 is f2, and the focal length of the 3rd eyeglass 430 is f3, and its relational expression is: | f2|/| f3|=0.8238.
In 4th embodiment, the focal length of the 3rd eyeglass 430 is f3, and the focal length of the 4th eyeglass 440 is f4, and its relational expression is: | f3|/| f4|=1.0301.
In 4th embodiment, the focal length of the 4th eyeglass 440 is f4, and the focal length of the 5th eyeglass 450 is f5, and its relational expression is: | f4|/| f5|=1.2249.
In 4th embodiment, the focal length of this first eyeglass 410 is f1, and the synthesis focal length of this second eyeglass 420, the 3rd eyeglass 430, the 4th eyeglass 440 and the 5th eyeglass 450 is f2345, and its relational expression is: | f1|/| f2345|=0.1992.
In 4th embodiment, the focal length of the synthesis of this first eyeglass 410 and the second eyeglass 420 is f12, and the synthesis focal length of the 3rd eyeglass 430, the 4th eyeglass 440 and the 5th eyeglass 450 is f345, and its relational expression is: | f12|/| f345|=2.3910.
In 4th embodiment, the focal length of the synthesis of this first eyeglass 410, second eyeglass 420 and the 3rd eyeglass 430 is f123, and the synthesis focal length of the 4th eyeglass 440 and the 5th eyeglass 450 is f45, and its relational expression is: | f123|/| f45|=0.0688.
In 4th embodiment, the entirety synthesis focal length of this five chips imaging lens set is f, and the thing side surface 411 of this first eyeglass 410 is TL to the distance between imaging surface 470, and its relational expression is: | f/TL|=0.7617.
The detailed structured data of 4th embodiment is as shown in table seven, its aspherical surface data is as shown in table eight, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table seven, surface 2 contained in eight, 3 things being respectively this first eyeglass 410, resemble side surface 411, 412, surface 4, 5 things being respectively this second eyeglass 420, resemble side surface 421, 422, surface 6, 7 things being respectively the 3rd eyeglass 430, resemble side surface 431, 432, surface 8, 9 things being respectively the 4th eyeglass 440, resemble side surface 441, 442, surface 10, 11 things being respectively the 5th eyeglass 450, resemble side surface 451, 452.
What deserves to be explained is; table one to table eight is depicted as the different numerical value change tables of each embodiment of five chip imaging lens set of the present invention; the numerical value change of right various embodiments of the present invention is all true tests gained, even if use different numerical value, mutually isostructural product still belongs to protection category of the present invention.Table nine is the correspondence table of each relational expression in each embodiment.
In the present invention five chip imaging lens set, the material of each eyeglass can be glass or plastics, if the material of each eyeglass is glass, then can increase the degree of freedom of this five chips imaging lens set refracting power configuration, if each eyeglass material is plastics, then effectively can reduce production cost.
In the present invention five chip imaging lens set, if lens surface is convex surface, then represent that this lens surface is convex surface in dipped beam axle place; If lens surface is concave surface, then represent that this lens surface is concave surface in dipped beam axle place.
Table one
Table two
Table three
Table four
Table five
Table six
Table seven
Table eight
| First embodiment | Second embodiment | 3rd embodiment | 4th embodiment | |
| f | 3.69 | 2.86 | 5.63 | 5.06 |
| Fno | 2.2 | 2.4 | 2.8 | 2.8 |
| 2ω | 75 | 90 | 68 | 70 |
| N2 | 1.632 | 1.632 | 1.607 | 1.607 |
| V2 | 23 | 23 | 27 | 27 |
| |f1|/|f2| | 0.5141 | 0.5715 | 0.6079 | 0.8434 |
| |f2|/|f3| | 1.8163 | 1.0748 | 0.6935 | 0.8238 |
| |f3|/|f4| | 0.2049 | 0.0627 | 0.2579 | 1.0301 |
| |f4|/|f5| | 3.9554 | 5.4373 | 3.8177 | 1.2249 |
| |f1|/|f2345| | 0.5012 | 0.0890 | 0.7966 | 0.1992 |
| |f12|/|f345| | 0.1175 | 0.8478 | 0.1362 | 2.3910 |
| |f123|/|f45| | 0.9422 | 0.2889 | 0.7710 | 0.0688 |
| |f/TL| | 0.7432 | 0.6526 | 0.8014 | 0.7617 |
Table nine
Claims (12)
1. five chip imaging lens set, is characterized in that: sequentially comprised to image side by thing side:
One smooth hurdle;
First eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of this first eyeglass and surface, image side are at least simultaneously aspheric surface;
One tool bears the second eyeglass of refracting power, and its surface, image side is concave surface, and the thing side surface of this second eyeglass and surface, image side are at least simultaneously aspheric surface;
3rd eyeglass of the positive refracting power of one tool, its surface, image side is convex surface, and the thing side surface of the 3rd eyeglass and surface, image side are at least simultaneously aspheric surface;
One the 4th eyeglass, its thing side surface is concave surface, and the thing side surface of the 4th eyeglass and surface, image side are at least simultaneously aspheric surface;
One tool bears the 5th eyeglass of refracting power, and its thing side surface is convex surface, and the thing side surface of the 5th eyeglass and surface, image side are at least simultaneously aspheric surface;
The focal length of the synthesis of this first eyeglass and the second eyeglass is f12, and the synthesis focal length of the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f345, meets following relationship: | f12|/| f345| < 2.5.
2. five chip imaging lens set as claimed in claim 1, is characterized in that: the focal length of this first eyeglass is f1, and the focal length of this second eyeglass is f2, and both meet following relationship: 0.3 < | f1|/| f2| < 1.0.
3. five chip imaging lens set as claimed in claim 1, is characterized in that: the focal length of this second eyeglass is f2, and the focal length of the 3rd eyeglass is f3, and both meet following relationship: 0.5 < | f2|/| f3| < 2.2.
4. five chip imaging lens set as claimed in claim 1, is characterized in that: the focal length of the 3rd eyeglass is f3, and the focal length of the 4th eyeglass is f4, and both meet following relationship: | f3|/| f4| < 1.2.
5. five chip imaging lens set as claimed in claim 1, is characterized in that: the focal length of the 4th eyeglass is f4, and the focal length of the 5th eyeglass is f5, and both meet following relationship: 1.0 < | f4|/| f5| < 5.5.
6. five chip imaging lens set as claimed in claim 1, is characterized in that: the refractive index of this second eyeglass is N2, and the Abbe number of this second eyeglass is V2, meets following relationship:
N2＞1.57；
V2＜40。
7. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of this first eyeglass is f1, the synthesis focal length of this second eyeglass, the 3rd eyeglass, the 4th eyeglass and the 5th eyeglass is f2345, meets following relationship: | f1|/| f2345| < 1.1.
8. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of the synthesis of this first eyeglass, the second eyeglass and the 3rd eyeglass is f123, the synthesis focal length of the 4th eyeglass and the 5th eyeglass is f45, meets following relationship: | f123|/| f45| < 1.2.
9. five chip imaging lens set as claimed in claim 1, it is characterized in that: the entirety synthesis focal length of this five chips imaging lens set is f, the thing side surface of this first eyeglass is TL to the distance between imaging surface, and both meet following relationship: 0.5 < | f/TL| < 0.9.
10. five chip imaging lens set as claimed in claim 1, it is characterized in that: the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is convex surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is concave surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
11. five chip imaging lens set as claimed in claim 1, it is characterized in that: the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is concave surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is concave surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
12. five chip imaging lens set as claimed in claim 1, it is characterized in that: the material of this first eyeglass is plastics, and the thing side surface of this first eyeglass is convex surface, thing side surface and the surface, image side of this first eyeglass are all aspheric surface, the material of this second eyeglass is plastics, and the thing side surface of this second eyeglass is convex surface, thing side surface and the surface, image side of this second eyeglass are all aspheric surface, the material of the 3rd eyeglass is plastics, and the thing side surface of the 3rd eyeglass is convex surface, thing side surface and the surface, image side of the 3rd eyeglass are all aspheric surface, the material of the 4th eyeglass is plastics, and surface, the image side of the 4th eyeglass is convex surface, thing side surface and the surface, image side of the 4th eyeglass are all aspheric surface, the material of the 5th eyeglass is plastics, and surface, the image side of the 5th eyeglass is concave surface, thing side surface and the surface, image side of the 5th eyeglass are all aspheric surface.
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| CN102047165A (en) * | 2009-07-08 | 2011-05-04 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup device and mobile terminal |
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| CN2884235Y (en) * | 2006-02-16 | 2007-03-28 | 宁波广博数码科技有限公司 | Lens of digital camera |
| CN102047165A (en) * | 2009-07-08 | 2011-05-04 | 柯尼卡美能达精密光学株式会社 | Image pickup lens, image pickup device and mobile terminal |
| CN102798962A (en) * | 2011-05-26 | 2012-11-28 | 大立光电股份有限公司 | Optical image lens assembly |
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