CN103676095A - Five-lens-type imaging lens group - Google Patents

Abstract

The invention relates to a five-lens-type imaging lens group. The five-lens-type imaging lens group comprises a first lens with positive refraction power, a second lens with negative refraction power, a third lens with positive refraction power, a fourth lens with positive refraction power and a fifth lens with negative refraction power, wherein the object 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; 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 the image side surface of the fourth lens is a convex 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 concave 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, so that the total length of camera lenses is shortened, and the five-lens-type imaging lens group is large in image angle, large in diaphragm, high in pixel and high in resolving power.

Description

Five chip imaging lens set

Technical field

The present invention relates to optical lens, refer to especially a kind of five chip imaging lens set.

Background technology

Recent years, rise along with 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 two kinds of photosensitive coupling component (CCD:Charge Coupled Device) or complementary matal-oxide semiconductors (CMOS:Complementary Metal-Oxide Semiconductor), progress due to manufacture of semiconductor technology, the elemental area of photosensory assembly is dwindled, miniaturization phtographic lens is gradually toward the development of high pixel 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 employing four-piece type lens arrangements are main, but because the pixel of mobile phone camera is very fastly soaring, the elemental area of photosensory assembly dwindles gradually, and in the situation that the requirement of system imaging quality improves constantly, common four-piece type lens combination cannot meet the more phtographic lens module of high-order, and because electronic product is constantly toward lightening, high performance trend development.

Summary of the invention

Technical matters to be solved by this invention is to provide a kind of five chip imaging lens set, it can be applicable to high-pixel mobile phone camera, and be unlikely to make camera lens total length long, and possess five chip imaging lens set of large picture angle, large aperture, high pixel, high analytic ability and low camera lens height simultaneously.

For addressing the above problem, the invention provides a kind of five chip imaging lens set, by thing side, extremely as side, sequentially comprised: the first eyeglass of the positive refracting power of a tool, its thing side surface is convex surface, and the thing side surface of this first eyeglass is at least simultaneously aspheric surface with picture side surface; The second eyeglass of the negative refracting power of one tool, it is concave surface as side surface, and the thing side surface of this second eyeglass is at least simultaneously aspheric surface with picture side surface; The 3rd eyeglass of the positive refracting power of one tool, its thing side surface is at least simultaneously aspheric surface with picture side surface; The 4th eyeglass of the positive refracting power of one tool, its thing side surface is concave surface, as side surface, is convex surface, and the thing side surface of the 4th eyeglass is at least simultaneously aspheric surface with picture side surface; The 5th eyeglass of the negative refracting power of one tool, it is concave surface as side surface, and the thing side surface of the 5th eyeglass is at least simultaneously aspheric surface with picture side surface; And a smooth hurdle, it can be arranged at the light hurdle (being between thing side and this first eyeglass) before this first eyeglass thing side surface or be arranged between this first eyeglass and the second eyeglass; The refractive index that makes this first eyeglass is that the contrary dispersion rate of N1, this first eyeglass is that the refractive index of V1, this second eyeglass is that the contrary dispersion rate of N2, this second eyeglass is V2, meets respectively following relationship: N1 < 1.57; V1 > 40; N2 > 1.57; V2 < 40.When N1, V1, N2, V2 meet respectively aforementioned relational expression, be conducive to the correction of this five chips imaging lens set aberration, the material of this first eyeglass and the second eyeglass is more suitable simultaneously, can contribute to, when large field angle is provided, to be unlikely to produce too much system aberration.

Five described chip imaging lens set, more comprise a light hurdle being arranged between this first eyeglass and this second eyeglass.

Five described chip imaging lens set, it more comprises one and is arranged at this first eyeglass thing side surface light hurdle before.

The focal length of described the first eyeglass is f1, and the focal length of this second eyeglass is f2, and both meet following relationship: 0.3 < | f1|/| f2| < 0.9.

The focal length of described the first eyeglass is f1, and the synthetic focal length of this second eyeglass and the 3rd eyeglass is f23, and both meet following relationship: 0.3 < | f1|/| f23| < 0.8.

The focal length of described the second eyeglass is f2, and the synthetic focal length of the 3rd eyeglass and the 4th eyeglass is f34, and both meet following relationship: 0.7 < | f2|/| f34| < 2.7.

The focal length of described the 4th eyeglass is f4, and the focal length of the 5th eyeglass is f5, and both meet following relationship: 0.7 < | f4|/| f5| < 1.7.

The synthetic focal length of described the first eyeglass, this second eyeglass is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and both meet following relationship: 0.75 < | f12|/f < 1.25.

The synthetic focal length of described the first eyeglass, this second eyeglass and the 3rd eyeglass is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and both meet following relationship: 0.6 < | f123|/f < 0.25.

Five described chip imaging lens set, wherein, imaging surface image radius is IH, and to imaging surface, the distance on optical axis is TL to the thing side surface of this first eyeglass, and both meet following relationship: 0.55 < | IH/TL| < 0.95.

The synthetic focal length of integral body of five chip imaging lens set is f, and to imaging surface, the distance on optical axis is TL to the thing side surface of this first eyeglass, and both meet following relationship: 0.75 < | f/TL| < 1.5.

Five chip imaging lens set of the present invention, are applied to high-pixel mobile phone camera, have shortened camera lens total length, and possess large picture angle, large aperture, high pixel, high analytic ability simultaneously.

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, distorts and receive poor line chart and curvature of the image figure.

Fig. 1 C is table one, is the first embodiment optical data.

Fig. 1 D is table two, is the first embodiment aspherical surface data.

Fig. 2 A is the optical schematic diagram of second embodiment of the invention.

Fig. 2 B is second embodiment of the invention sphere, distorts and receive poor line chart and curvature of the image figure.

Fig. 2 C is table three, is the second embodiment optical data.

Fig. 2 D is table four, is the second embodiment aspherical surface data.

Fig. 3 A is the optical schematic diagram of third embodiment of the invention.

Fig. 3 B is third embodiment of the invention sphere, distorts and receive poor line chart and curvature of the image figure.

Fig. 3 C is table five, is the 3rd embodiment optical data.

Fig. 3 D is table six, is the 3rd embodiment aspherical surface data.

Fig. 4 A is the optical schematic diagram of fourth embodiment of the invention.

Fig. 4 B is fourth embodiment of the invention sphere, distorts and receive poor line chart and curvature of the image figure.

Fig. 4 C is table seven, is the 4th embodiment optical data.

Fig. 4 D is table eight, is the 4th embodiment aspherical surface data.

Fig. 5 A is the optical schematic diagram of fifth embodiment of the invention.

Fig. 5 B is fifth embodiment of the invention sphere, distorts and receive poor line chart and curvature of the image figure.

Fig. 5 C is table nine, is the 5th embodiment optical data.

Fig. 5 D is table ten, is the 5th embodiment aspherical surface data.

Fig. 6 A is the optical schematic diagram of sixth embodiment of the invention.

Fig. 6 B is sixth embodiment of the invention sphere, distorts and receive poor line chart and curvature of the image figure.

Fig. 6 C is table ten one, is the 6th embodiment optical data.

Fig. 6 D is table ten two, is the 6th embodiment aspherical surface data.

Fig. 7 is table ten three, is the numerical data of correlationship formula of the present invention.

Description of reference numerals

100, the 200,300,400,500, the 600th, light hurdle

110,210,310,410,510,610 is first eyeglasses

111,211,311,411,511,611 is thing side surfaces of the first eyeglass

112,212,312,412,512,612 is picture side surfaces of the first eyeglass

120,220,320,420,520,620 is second eyeglasses

121,221,321,421,521,621 is thing side surfaces of the second eyeglass

122,222,322,422,522,622 is picture side surfaces of the second eyeglass

130,230,330,430,530,630 is the 3rd eyeglasses

131,231,331,431,531,631 is thing side surfaces of the 3rd eyeglass

132,232,332,432,532,632 is picture side surfaces of the 3rd eyeglass

140,240,340,440,540,640 is the 4th eyeglasses

141,241,341,441,541,641 is thing side surfaces of the 4th eyeglass

142,242,342,442,542,642 is picture side surfaces of the 4th eyeglass

150,250,350,450,550,650 is the 5th eyeglasses

151,251,351,451,551,651 is thing side surfaces of the 5th eyeglass

152,252,352,452,552,652 is picture side surfaces of the 5th eyeglass

160, the 260,360,460,560, the 660th, infrared ray filtering optical filter (IR Filter)

170, the 270,370,470,570, the 670th, imaging surface

180, the 280,380,480,580, the 680th, optical axis

F is whole synthetic focal length

Fno is whole f-number

2 ω are picture angles

F1 is the focal length of the first eyeglass

F2 is the focal length of the second eyeglass

F4 is the focal length of the 4th eyeglass

F5 is the focal length of the 5th eyeglass

F12 is the synthetic focal length of the first eyeglass and the second eyeglass

F23 is the synthetic focal length of the second eyeglass and the 3rd eyeglass

F34 is the synthetic focal length of the 3rd eyeglass and the 4th eyeglass

F123 is the synthetic focal length of the first eyeglass, the second eyeglass and the 3rd eyeglass

TL be the thing side surface of the first eyeglass to imaging surface the distance on optical axis

IH is imaging surface image radius

N1 is the refractive index of the first eyeglass

V1 is the contrary dispersion rate of the first eyeglass

N2 is the refractive index of the second eyeglass

V2 is the contrary dispersion rate of the second eyeglass

Embodiment

The first embodiment

A kind of five chip imaging lens set that first embodiment of the invention provides, refer to Figure 1A, 1B, Figure 1A is that schematic diagram is put in five chip imaging eyeglass assembly of first embodiment of the invention, and Figure 1B is first embodiment of the invention aberration curve figure, and the first embodiment is from thing side A to comprising as side B:

One smooth hurdle 100.

The first eyeglass 110 of the positive refracting power of one tool, its material is plastics, the thing side surface 111 of this first eyeglass 110 is convex surface, this is convex surface as side surface 112, the thing side surface 111 of this first eyeglass 110 with as side surface 112, be all made as aspheric surface.

The second eyeglass 120 of the negative refracting power of one tool, its material is plastics, the thing side surface 121 of this second eyeglass 120 be convex surface, this is concave surface as side surface 122, the thing side surface 121 of this second eyeglass 120 and be all made as aspheric surface as side surface 122.

The 3rd eyeglass 130 of the negative refracting power of one tool, its material is plastics, the thing side surface 131 of the 3rd eyeglass 130 be convex surface, this is concave surface as side surface 132, the thing side surface 131 of the 3rd eyeglass 130 and be all made as aspheric surface as side surface 132.

The 4th eyeglass 140 of the positive refracting power of one tool, its material is plastics, the thing side surface 141 of the 4th eyeglass 140 is concave surface, this is convex surface as side surface 142, the thing side surface 141 of the 4th eyeglass 140 with as side surface 142, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 150, and its material is plastics, and the thing side surface 151 of the 5th eyeglass 150 is convex surface, this is concave surface as side surface 152, the thing side surface 151 of the 5th eyeglass 150 with as side surface 152, be all made as aspheric surface.

One infrared ray filtering optical filter (IR-filter) 160, it is located between the 5th eyeglass 150 picture side surfaces 152 and an imaging surface 170, and the material of this infrared ray filtering optical filter 160 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 180 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the first embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=3.65.

In the first embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.

In the first embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=78 °.

In the 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|=0.5230.

In the first embodiment, the focal length of this first eyeglass 110 is f1, and the synthetic focal length of this second eyeglass 120 and the 3rd eyeglass 130 is f23, and its relational expression is: | f1|/| f23|=0.5679.

In the first embodiment, the focal length of this second eyeglass 120 is f2, and the synthetic focal length of the 3rd eyeglass 130 and the 4th eyeglass 140 is f34, and its relational expression is: | f2|/| f34|=2.2848.

In the 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|=0.9692.

In the first embodiment, the synthetic focal length of this first eyeglass 110 and this second eyeglass 120 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=1.0343.

In the first embodiment, the synthetic focal length of this first eyeglass 110, this second eyeglass 120 and the 3rd eyeglass 130 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=1.0609.

In the first embodiment, imaging surface 170 image radiuses are IH, and to imaging surface 170, the distance on optical axis 180 is TL to the thing side surface 111 of this first eyeglass 110, and its relational expression is: | IH/TL|=0.8341.

In the first embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 170, the distance on optical axis 180 is TL to the thing side surface 111 of this first eyeglass 110, and its relational expression is: | f/TL|=1.2573.

In the first embodiment, the refractive index of this first eyeglass 110 is that refractive index that the contrary dispersion rate (claiming again Abbe coefficient/Abbe number) of N1, this first eyeglass 110 is V1, this second eyeglass 120 is that the contrary dispersion rate of N2, this second eyeglass 120 is V2, and its relational expression is: N1=1.544; V1=56.0; N2=1.634; V2=23.9.

The detailed structured data of the first embodiment is as in Fig. 1 C shown in table one, its aspherical surface data is as in 1D figure shown in table two, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table, contained surface 2 in two, 3 are respectively the thing of this first eyeglass 110, picture side surface 111, 112, surface 4, 5 are respectively the thing of this second eyeglass 120, picture side surface 121, 122, surface 6, 7 are respectively the thing of the 3rd eyeglass 130, picture side surface 131, 132, surface 8, 9 are respectively the thing of the 4th eyeglass 140, picture side surface 141, 142, surface 10, 11 are respectively the thing of the 5th eyeglass 150, picture side surface 151, 152.

The second embodiment

A kind of five chip imaging lens set that second embodiment of the invention provides, refer to Fig. 2 A, 2B, schematic diagram is put in the five chip imaging eyeglass assembly that this Fig. 2 A is second embodiment of the invention, and Fig. 2 B is second embodiment of the invention aberration curve figure, and the second embodiment is from thing side A to comprising as side B:

The first eyeglass 210 of the positive refracting power of one tool, its material is plastics, the thing side surface 211 of this first eyeglass 210 is convex surface, this is concave surface as side surface 212, the thing side surface 211 of this first eyeglass 210 with as side surface 212, be all made as aspheric surface.

One smooth hurdle 200.

The second eyeglass 220 of the negative refracting power of one tool, its material is plastics, the thing side surface 221 of this second eyeglass 220 be convex surface, this is concave surface as side surface 222, the thing side surface 221 of this second eyeglass 220 and be all made as aspheric surface as side surface 222.

The 3rd eyeglass 230 of the negative refracting power of one tool, its material is plastics, the thing side surface 231 of the 3rd eyeglass 230 be convex surface, this is concave surface as side surface 232, the thing side surface 231 of the 3rd eyeglass 230 and be all made as aspheric surface as side surface 232.

The 4th eyeglass 240 of the positive refracting power of one tool, its material is plastics, the thing side surface 241 of the 4th eyeglass 240 is concave surface, this is convex surface as side surface 242, the thing side surface 241 of the 4th eyeglass 240 with as side surface 242, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 250, and its material is plastics, and the thing side surface 251 of the 5th eyeglass 250 is convex surface, this is concave surface as side surface 252, the thing side surface 251 of the 5th eyeglass 250 with as side surface 252, be all made as aspheric surface.

One infrared ray filtering optical filter 260, it is located between the 5th eyeglass 250 picture side surfaces 252 and an imaging surface 270, and the material of this infrared ray filtering optical filter 260 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 280 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the second embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=3.76.

In the second embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.

In the second embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=78 °.

In the 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|=0.4876.

In the second embodiment, the focal length of this first eyeglass 210 is f1, and the synthetic focal length of this second eyeglass 220 and the 3rd eyeglass 230 is f23, and its relational expression is: | f1|/| f23|=0.5149.

In the second embodiment, the focal length of this second eyeglass 220 is f2, and the synthetic focal length of the 3rd eyeglass 230 and the 4th eyeglass 240 is f34, and its relational expression is: | f2|/| f34|=2.3878.

In the 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|=0.9240.

In the second embodiment, the synthetic focal length of this first eyeglass 210 and this second eyeglass 220 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=0.9676.

In the second embodiment, the synthetic focal length of this first eyeglass 210, this second eyeglass 220 and the 3rd eyeglass 230 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=0.9808.

In the second embodiment, imaging surface 270 image radiuses are IH, and to imaging surface 270, the distance on optical axis 280 is TL to the thing side surface 211 of this first eyeglass 210, and its relational expression is: | IH/TL|=0.8108.

In the second embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 270, the distance on optical axis 280 is TL to the thing side surface 211 of this first eyeglass 210, and its relational expression is: | f/TL|=1.2373.

In the second embodiment, the refractive index of this first eyeglass 210 is that the contrary dispersion rate of N1, this first eyeglass 210 is that the refractive index of V1, this second eyeglass 220 is that the contrary dispersion rate of N2, this second eyeglass 220 is V2, and its relational expression is: N1=1.544; V1=56; N2=1.632; V2=23.

The detailed structured data of the second embodiment is as in Fig. 2 C shown in table three, its aspherical surface data is as in 2D figure shown in table four, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table three, contained surface 1 in four, 2 are respectively the thing of this first eyeglass 210, picture side surface 211, 212, surface 4, 5 are respectively the thing of this second eyeglass 220, picture side surface 221, 222, surface 6, 7 are respectively the thing of the 3rd eyeglass 230, picture side surface 231, 232, surface 8, 9 are respectively the thing of the 4th eyeglass 240, picture side surface 241, 242, surface 10, 11 are respectively the thing of the 5th eyeglass 250, picture side surface 251, 252.

The 3rd embodiment

A kind of five chip imaging lens set that third embodiment of the invention provides, refer to Fig. 3 A, 3B, schematic diagram is put in the five chip imaging eyeglass assembly that this Fig. 3 A is third embodiment of the invention, and Fig. 3 B is third embodiment of the invention aberration curve figure, and the 3rd embodiment is from thing side A to comprising as side B:

The first eyeglass 310 of the positive refracting power of one tool, its material is plastics, the thing side surface 311 of this first eyeglass 310 is convex surface, this is convex surface as side surface 312, the thing side surface 311 of this first eyeglass 310 with as side surface 312, be all made as aspheric surface.

One smooth hurdle 300.

The second eyeglass 320 of the negative refracting power of one tool, its material is plastics, the thing side surface 321 of this second eyeglass 320 be concave surface, this is concave surface as side surface 322, the thing side surface 321 of this second eyeglass 320 and be all made as aspheric surface as side surface 322.

The 3rd eyeglass 330 of the positive refracting power of one tool, its material is plastics, the thing side surface 331 of the 3rd eyeglass 330 is concave surface, this is convex surface as side surface 332, the thing side surface 331 of the 3rd eyeglass 330 with as side surface 332, be all made as aspheric surface.

The 4th eyeglass 340 of the positive refracting power of one tool, its material is plastics, the thing side surface 341 of the 4th eyeglass 340 is concave surface, this is convex surface as side surface 342, the thing side surface 341 of the 4th eyeglass 340 with as side surface 342, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 350, and its material is plastics, and the thing side surface 351 of the 5th eyeglass 350 is convex surface, this is concave surface as side surface 352, the thing side surface 351 of the 5th eyeglass 350 with as side surface 352, be all made as aspheric surface.

One infrared ray filtering optical filter 360, it is located between the 5th eyeglass 350 picture side surfaces 352 and an imaging surface 370, and the material of this infrared ray filtering optical filter 360 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 380 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the 3rd embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=3.67.

In the 3rd embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.

In the 3rd embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=78 °.

In the 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|=0.5951.

In the 3rd embodiment, the focal length of this first eyeglass 310 is f1, and the synthetic focal length of this second eyeglass 320 and the 3rd eyeglass 330 is f23, and its relational expression is: | f1|/| f23|=0.5628.

In the 3rd embodiment, the focal length of this second eyeglass 320 is f2, and the synthetic focal length of the 3rd eyeglass 330 and the 4th eyeglass 340 is f34, and its relational expression is: | f2|/| f34|=1.4379.

In the 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|=0.9599.

In the 3rd embodiment, the synthetic focal length of this first eyeglass 310 and this second eyeglass 320 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=0.9758.

In the 3rd embodiment, the synthetic focal length of this first eyeglass 310, this second eyeglass 320 and the 3rd eyeglass 330 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=0.9480.

In the 3rd embodiment, imaging surface 370 image radiuses are IH, and to imaging surface 370, the distance on optical axis 380 is TL to the thing side surface 311 of this first eyeglass 310, and its relational expression is: | IH/TL|=0.8307.

In the 3rd embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 370, the distance on optical axis 380 is TL to the thing side surface 311 of this first eyeglass 310, and its relational expression is: | f/TL|=1.2611.

In the 3rd embodiment, the refractive index of this first eyeglass 310 is that the contrary dispersion rate of N1, this first eyeglass 310 is that the refractive index of V1, this second eyeglass 320 is that the contrary dispersion rate of N2, this second eyeglass 320 is V2, and its relational expression is: N1=1.535; V1=56; N2=1.632; V2=23.

The detailed structured data of the 3rd embodiment is as in Fig. 3 C shown in table five, its aspherical surface data is as in Fig. 3 D shown in table six, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table five, contained surface 1 in six, 2 are respectively the thing of this first eyeglass 310, picture side surface 311, 312, surface 4, 5 are respectively the thing of this second eyeglass 320, picture side surface 321, 322, surface 6, 7 are respectively the thing of the 3rd eyeglass 330, picture side surface 331, 332, surface 8, 9 are respectively the thing of the 4th eyeglass 340, picture side surface 341, 342, surface 10, 11 are respectively the thing of the 5th eyeglass 350, picture side surface 351, 352.

The 4th embodiment

A kind of five chip imaging lens set that fourth embodiment of the invention provides, refer to Fig. 4 A, 4B, schematic diagram is put in the five chip imaging eyeglass assembly that this Fig. 4 A is fourth embodiment of the invention, and Fig. 4 B is fourth embodiment of the invention aberration curve figure, and the 4th embodiment is from thing side A to comprising as side B:

The first eyeglass 410 of the positive refracting power of one tool, its material is plastics, the thing side surface 411 of this first eyeglass 410 is convex surface, this is convex surface as side surface 412, the thing side surface 411 of this first eyeglass 410 with as side surface 412, be all made as aspheric surface.

One smooth hurdle 400.

The second eyeglass 420 of the negative refracting power of one tool, its material is plastics, the thing side surface 421 of this second eyeglass 420 be concave surface, this is concave surface as side surface 422, the thing side surface 421 of this second eyeglass 420 and be all made as aspheric surface as side surface 422.

The 3rd eyeglass 430 of the positive refracting power of one tool, its material is plastics, the thing side surface 431 of the 3rd eyeglass 430 is concave surface, this is convex surface as side surface 432, the thing side surface 431 of the 3rd eyeglass 430 with as side surface 432, be all made as aspheric surface.

The 4th eyeglass 440 of the positive refracting power of one tool, its material is plastics, the thing side surface 441 of the 4th eyeglass 440 is concave surface, this is convex surface as side surface 442, the thing side surface 441 of the 4th eyeglass 440 with as side surface 442, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 450, and its material is plastics, and the thing side surface 451 of the 5th eyeglass 450 is convex surface, this is concave surface as side surface 452, the thing side surface 451 of the 5th eyeglass 450 with as side surface 452, be all made as aspheric surface.

One infrared ray filtering optical filter 460, it is located between the 5th eyeglass 450 picture side surfaces 452 and an imaging surface 470, and the material of this infrared ray filtering optical filter 460 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 480 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the 4th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=4.13.

In the 4th embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.

In the 4th embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=72 °.

In the 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|=0.6969.

In the 4th embodiment, the focal length of this first eyeglass 410 is f1, and the synthetic focal length of this second eyeglass 420 and the 3rd eyeglass 430 is f23, and its relational expression is: | f1|/| f23|=0.5256.

In the 4th embodiment, the focal length of this second eyeglass 420 is f2, and the synthetic focal length of the 3rd eyeglass 430 and the 4th eyeglass 440 is f34, and its relational expression is: | f2|/| f34|=1.0029.

In the 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|=1.0272.

In the 4th embodiment, the synthetic focal length of this first eyeglass 410 and this second eyeglass 420 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=0.9423.

In the 4th embodiment, the synthetic focal length of this first eyeglass 410, this second eyeglass 420 and the 3rd eyeglass 430 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=0.9006.

In the 4th embodiment, imaging surface 470 image radiuses are IH, and to imaging surface 470, the distance on optical axis 480 is TL to the thing side surface 411 of this first eyeglass 410, and its relational expression is: | IH/TL|=0.7374.

In the 4th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 470, the distance on optical axis 480 is TL to the thing side surface 411 of this first eyeglass 410, and its relational expression is: | f/TL|=1.1918.

In the 4th embodiment, the refractive index of this first eyeglass 410 is that the contrary dispersion rate of N1, this first eyeglass 410 is that the refractive index of V1, this second eyeglass 420 is that the contrary dispersion rate of N2, this second eyeglass 420 is V2, and its relational expression is: N1=1.535; V1=56; N2=1.632; V2=23.

The detailed structured data of the 4th embodiment is as in Fig. 4 C shown in table seven, its aspherical surface data is as in Fig. 4 D shown in table eight, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table seven, contained surface 1 in eight, 2 are respectively the thing of this first eyeglass 410, picture side surface 411, 412, surface 4, 5 are respectively the thing of this second eyeglass 420, picture side surface 421, 422, surface 6, 7 are respectively the thing of the 3rd eyeglass 430, picture side surface 431, 432, surface 8, 9 are respectively the thing of the 4th eyeglass 440, picture side surface 441, 442, surface 10, 11 are respectively the thing of the 5th eyeglass 450, picture side surface 451, 452.

The 5th embodiment

A kind of five chip imaging lens set that fifth embodiment of the invention provides, refer to Fig. 5 A, 5B, schematic diagram is put in the five chip imaging eyeglass assembly that this Fig. 5 A is fifth embodiment of the invention, and Fig. 5 B is fifth embodiment of the invention aberration curve figure, and the 5th embodiment is from thing side A to comprising as side B:

The first eyeglass 510 of the positive refracting power of one tool, its material is plastics, the thing side surface 511 of this first eyeglass 510 is convex surface, this is convex surface as side surface 512, the thing side surface 511 of this first eyeglass 510 with as side surface 512, be all made as aspheric surface.

One smooth hurdle 500.

The second eyeglass 520 of the negative refracting power of one tool, its material is plastics, the thing side surface 521 of this second eyeglass 520 be concave surface, this is concave surface as side surface 522, the thing side surface 521 of this second eyeglass 520 and be all made as aspheric surface as side surface 522.

The 3rd eyeglass 530 of the positive refracting power of one tool, its material is plastics, the thing side surface 531 of the 3rd eyeglass 530 is convex surface, this is convex surface as side surface 532, the thing side surface 531 of the 3rd eyeglass 530 with as side surface 532, be all made as aspheric surface.

The 4th eyeglass 540 of the positive refracting power of one tool, its material is plastics, the thing side surface 541 of the 4th eyeglass 540 is concave surface, this is convex surface as side surface 542, the thing side surface 541 of the 4th eyeglass 540 with as side surface 542, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 550, and its material is plastics, and the thing side surface 551 of the 5th eyeglass 550 is convex surface, this is concave surface as side surface 552, the thing side surface 551 of the 5th eyeglass 550 with as side surface 552, be all made as aspheric surface.

One infrared ray filtering optical filter 560, it is located between the 5th eyeglass 550 picture side surfaces 552 and an imaging surface 570, and the material of this infrared ray filtering optical filter 560 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 580 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the 5th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=4.10.

In the 5th embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.2.

In the 5th embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=71.5 °.

In the 5th embodiment, the focal length of this first eyeglass 510 is f1, and the focal length of this second eyeglass 520 is f2, and its relational expression is: | f1|/| f2|=0.52295.

In the 5th embodiment, the focal length of this first eyeglass 510 is f1, and the synthetic focal length of this second eyeglass 520 and the 3rd eyeglass 530 is f23, and its relational expression is: | f1|/| f23|=0.58686.

In the 5th embodiment, the focal length of this second eyeglass 520 is f2, and the synthetic focal length of the 3rd eyeglass 530 and the 4th eyeglass 540 is f34, and its relational expression is: | f2|/| f34|=1.27233.

In the 5th embodiment, the focal length of the 4th eyeglass 540 is f4, and the focal length of the 5th eyeglass 550 is f5, and its relational expression is: | f4|/| f5|=1.54187.

In the 5th embodiment, the synthetic focal length of this first eyeglass 510 and this second eyeglass 520 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=1.026441.

In the 5th embodiment, the synthetic focal length of this first eyeglass 510, this second eyeglass 520 and the 3rd eyeglass 530 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=0.824081.

In the 5th embodiment, imaging surface 570 image radiuses are IH, and to imaging surface 570, the distance on optical axis 580 is TL to the thing side surface 511 of this first eyeglass 510, and its relational expression is: | IH/TL|=0.732.

In the 5th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 570, the distance on optical axis 580 is TL to the thing side surface 511 of this first eyeglass 510, and its relational expression is: | f/TL|=1.125267.

In the 5th embodiment, the refractive index of this first eyeglass 510 is that the contrary dispersion rate of N1, this first eyeglass 510 is that the refractive index of V1, this second eyeglass 520 is that the contrary dispersion rate of N2, this second eyeglass 520 is V2, and its relational expression is: N1=1.544; V1=56; N2=1.632; V2=23.

The detailed structured data of the 5th embodiment is as in Fig. 5 C shown in table nine, its aspherical surface data is as in Fig. 5 D shown in table ten, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table nine, contained surface 1 in ten, 2 are respectively the thing of this first eyeglass 510, picture side surface 511, 512, surface 4, 5 are respectively the thing of this second eyeglass 520, picture side surface 521, 522, surface 6, 7 are respectively the thing of the 3rd eyeglass 530, picture side surface 531, 532, surface 8, 9 are respectively the thing of the 4th eyeglass 540, picture side surface 541, 542, surface 10, 11 are respectively the thing of the 5th eyeglass 550, picture side surface 551, 552.

The 6th embodiment

A kind of five chip imaging lens set that sixth embodiment of the invention provides, refer to Fig. 6 A, 6B, schematic diagram is put in the five chip imaging eyeglass assembly that this Fig. 6 A is sixth embodiment of the invention, and Fig. 6 B is sixth embodiment of the invention aberration curve figure, and the 6th embodiment is from thing side A to comprising as side B:

One smooth hurdle 600.

The first eyeglass 610 of the positive refracting power of one tool, its material is plastics, the thing side surface 611 of this first eyeglass 610 is convex surface, this is convex surface as side surface 612, the thing side surface 611 of this first eyeglass 610 with as side surface 612, be all made as aspheric surface.

The second eyeglass 620 of the negative refracting power of one tool, its material is plastics, the thing side surface 621 of this second eyeglass 620 be concave surface, this is concave surface as side surface 622, the thing side surface 621 of this second eyeglass 620 and be all made as aspheric surface as side surface 622.

The 3rd eyeglass 630 of the negative refracting power of one tool, its material is plastics, the thing side surface 631 of the 3rd eyeglass 630 be concave surface, this is convex surface as side surface 632, the thing side surface 631 of the 3rd eyeglass 630 and be all made as aspheric surface as side surface 632.

The 4th eyeglass 640 of the positive refracting power of one tool, its material is plastics, the thing side surface 641 of the 4th eyeglass 640 is concave surface, this is convex surface as side surface 642, the thing side surface 641 of the 4th eyeglass 640 with as side surface 642, be all made as aspheric surface.

One tool is born refracting power the 5th eyeglass 650, and its material is plastics, and the thing side surface 651 of the 5th eyeglass 650 is concave surface, this is concave surface as side surface 652, the thing side surface 651 of the 5th eyeglass 650 with as side surface 652, be all made as aspheric surface.

One infrared ray filtering optical filter 660, it is located between the 5th eyeglass 650 picture side surfaces 652 and an imaging surface 670, and the material of this infrared ray filtering optical filter 660 is glass and the focal length that does not affect this five chips imaging lens set.

The equation of above-mentioned aspheric curve is expressed as follows:

$z=\frac{{\mathrm{<figure-callout\; id="2"\; label="ch"\; filenames="HDA00002078698100031.png,HDA00002078698100061.png"\; state="\{\{state\}\}">ch</figure-callout>}}^2}{1+{[1-(k+1)c^2{h}^2]}^{0.5}}+{\mathrm{<figure-callout\; id="4"\; label="Ah"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Ah</figure-callout>}}^4+{\mathrm{<figure-callout\; id="6"\; label="Bh"\; filenames="HDA00002078698100031.png,HDA00002078698100151.png"\; state="\{\{state\}\}">Bh</figure-callout>}}^6+{\mathrm{<figure-callout\; id="8"\; label="Ch"\; filenames="HDA00002078698100151.png,HDA00002078698100191.png"\; state="\{\{state\}\}">Ch</figure-callout>}}^8+{\mathrm{<figure-callout\; id="10"\; label="Dh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Dh</figure-callout>}}^{10}+{\mathrm{Eh}}^{12}+{\mathrm{<figure-callout\; id="14"\; label="Gh"\; filenames="HDA00002078698100031.png,HDA00002078698100071.png"\; state="\{\{state\}\}">Gh</figure-callout>}}^{14}+.........$

Wherein z is highly for the position of h is with surface vertices positional value for referencial use along optical axis 680 directions; K is cone normal manner amount; C is the inverse of radius-of-curvature; A, B, C, D, E, G ... be high-order asphericity coefficient.

In the 6th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and its relational expression is: f=3.29.

In the 6th embodiment, the whole f-number (f-number) of this five chips imaging lens set is Fno, and its relational expression is: Fno=2.4.

In the 6th embodiment, the picture angle of this five chips imaging lens set is 2 ω, and its relational expression is: 2 ω=72 °.

In the 6th embodiment, the focal length of this first eyeglass 610 is f1, and the focal length of this second eyeglass 120 is f2, and its relational expression is: | f1|/| f2|=0.4409.

In the 6th embodiment, the focal length of this first eyeglass 610 is f1, and the synthetic focal length of this second eyeglass 620 and the 3rd eyeglass 630 is f23, and its relational expression is: | f1|/| f23|=0.59426.

In the 6th embodiment, the focal length of this second eyeglass 620 is f2, and the synthetic focal length of the 3rd eyeglass 630 and the 4th eyeglass 640 is f34, and its relational expression is: | f2|/| f34|=2.38843.

In the 6th embodiment, the focal length of the 4th eyeglass 640 is f4, and the focal length of the 5th eyeglass 650 is f5, and its relational expression is: | f4|/| f5|=1.12698.

In the 6th embodiment, the synthetic focal length of this first eyeglass 610 and this second eyeglass 620 is f12, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f12|/f=0.981891.

In the 6th embodiment, the synthetic focal length of this first eyeglass 610, this second eyeglass 620 and the 3rd eyeglass 630 is f123, and the synthetic focal length of integral body of this five chips imaging lens set is f, and its relational expression is: | f123|/f=1.174148.

In the 6th embodiment, imaging surface 670 image radiuses are IH, and to imaging surface 670, the distance on optical axis 680 is TL to the thing side surface 611 of this first eyeglass 610, and its relational expression is: | IH/TL|=0.6283.

In the 6th embodiment, the synthetic focal length of the integral body of this five chips imaging lens set is f, and to imaging surface 670, the distance on optical axis 680 is TL to the thing side surface 611 of this first eyeglass 610, and its relational expression is: | f/TL|=0.844369.

In the 6th embodiment, the refractive index of this first eyeglass 610 is that the contrary dispersion rate of N1, this first eyeglass 610 is that the refractive index of V1, this second eyeglass 620 is that the contrary dispersion rate of N2, this second eyeglass 620 is V2, and its relational expression is: N1=1.544; V1=56; N2=1.634; V2=23.9.

The detailed structured data of the 6th embodiment is as in Fig. 6 C shown in table ten one, its aspherical surface data is as in Fig. 6 D shown in table ten two, wherein, radius-of-curvature, the unit of thickness and focal length is millimetre (mm), and table ten one, contained surface 2 in 12, 3 are respectively the thing of this first eyeglass 610, picture side surface 611, 612, surface 4, 5 are respectively the thing of this second eyeglass 620, picture side surface 621, 622, surface 6, 7 are respectively the thing of the 3rd eyeglass 630, picture side surface 631, 632, surface 8, 9 are respectively the thing of the 4th eyeglass 640, picture side surface 641, 642, surface 10, 11 are respectively the thing of the 5th eyeglass 650, picture side surface 651, 652.

What deserves to be explained is; table two in table one in Fig. 1 C, Fig. 1 D, the table three in Fig. 2 C, the table four in Fig. 2 D, the table five in Fig. 3 C, the table six in Fig. 3 D, the table seven in Fig. 4 C, the table eight in Fig. 4 D, the table nine in Fig. 5 C, the table ten in Fig. 5 D, the table ten one in Fig. 6 C, the table ten in Fig. 6 D two are the different numerical value change tables of five each embodiment of chip imaging lens set of the present invention; the all true gained of testing of numerical value change of right various embodiments of the present invention; even if use different numerical value, the product of same structure still belongs to protection category of the present invention.Table ten in Fig. 7 three is the correspondence table of each relational expression in each embodiment.

In the present invention's five chip imaging lens set, the material of each eyeglass can be glass or plastics, if the material of each eyeglass is glass, can increase the degree of freedom of this five chips imaging lens set refracting power configuration, if each eyeglass material is plastics, can effectively reduce production costs.

In the present invention's five chip imaging lens set, if lens surface is to be convex surface, represent that this lens surface is convex surface in dipped beam axle place; If lens surface is to be concave surface, represent that this lens surface is concave surface in dipped beam axle place.

Claims (11)

1. five chip imaging lens set, is characterized in that: by thing side to sequentially comprising as side:

The first eyeglass of the positive refracting power of one tool, its thing side surface is convex surface, and the thing side surface of this first eyeglass is at least simultaneously aspheric surface with picture side surface;

The second eyeglass of the negative refracting power of one tool, it is concave surface as side surface, and the thing side surface of this second eyeglass is at least simultaneously aspheric surface with picture side surface;

The 3rd eyeglass of the positive refracting power of one tool, its thing side surface is at least simultaneously aspheric surface with picture side surface;

The 4th eyeglass of the positive refracting power of one tool, its thing side surface is concave surface, as side surface, is convex surface, and the thing side surface of the 4th eyeglass is at least simultaneously aspheric surface with picture side surface;

The 5th eyeglass of the negative refracting power of one tool, it is concave surface as side surface, and the thing side surface of the 5th eyeglass is at least simultaneously aspheric surface with picture side surface.

The refractive index of wherein said the first eyeglass is that the contrary dispersion rate of N1, this first eyeglass is that the refractive index of V1, this second eyeglass is that the contrary dispersion rate of N2, this second eyeglass is V2, meets respectively following relationship: N1 < 1.57; V1 > 40; N2 > 1.57; V2 < 40.

2. five chip imaging lens set as claimed in claim 1, is characterized in that: more comprise a light hurdle being arranged between this first eyeglass and this second eyeglass.

3. five chip imaging lens set as claimed in claim 1, is characterized in that: more comprise one and be arranged at this first eyeglass thing side surface light hurdle before.

4. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of described the first eyeglass is f1, the focal length of this second eyeglass is f2, and both meet following relationship: 0.3 < | f1|/| f2| < 0.9.

5. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of described the first eyeglass is f1, the synthetic focal length of this second eyeglass and the 3rd eyeglass is f23, and both meet following relationship: 0.3 < | f1|/| f23| < 0.8.

6. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of described the second eyeglass is f2, the synthetic focal length of the 3rd eyeglass and the 4th eyeglass is f34, and both meet following relationship: 0.7 < | f2|/| f34| < 2.7.

7. five chip imaging lens set as claimed in claim 1, it is characterized in that: the focal length of described the 4th eyeglass is f4, the focal length of the 5th eyeglass is f5, and both meet following relationship: 0.7 < | f4|/| f5| < 1.7.

8. five chip imaging lens set as claimed in claim 1, it is characterized in that: the synthetic focal length of described the first eyeglass, this second eyeglass is f12, the synthetic focal length of integral body of this five chips imaging lens set is f, and both meet following relationship: 0.75 < | f12|/f < 1.25.

9. five chip imaging lens set as claimed in claim 1, it is characterized in that: the synthetic focal length of described the first eyeglass, this second eyeglass and the 3rd eyeglass is f123, the synthetic focal length of integral body of this five chips imaging lens set is f, and both meet following relationship: 0.6 < | f123|/f < 0.25.

10. five chip imaging lens set as claimed in claim 1, it is characterized in that: imaging surface image radius is IH, to imaging surface, the distance on optical axis is TL to the thing side surface of this first eyeglass, and both meet following relationship: 0.55 < | IH/TL| < 0.95.

11. five chip imaging lens set as claimed in claim 1, it is characterized in that: the synthetic focal length of integral body of described five chip imaging lens set is f, to imaging surface, the distance on optical axis is TL to the thing side surface of this first eyeglass, and both meet following relationship: 0.75 < | f/TL| < 1.5.

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