CN102902044A

CN102902044A - Optical lens for photograph shooting

Info

Publication number: CN102902044A
Application number: CN2012103718255A
Authority: CN
Inventors: 陈俊杉; 汤相岐; 蔡宗翰
Original assignee: Largan Precision Co Ltd
Current assignee: Largan Precision Co Ltd
Priority date: 2010-05-18
Filing date: 2010-05-18
Publication date: 2013-01-30
Anticipated expiration: 2030-05-18
Also published as: CN102902044B

Abstract

The invention discloses an optical lens for photograph shooting. The optical lens comprises a first lens with positive inflectional force, a second lens with negative inflectional force, a third lens with positive inflectional force and a fourth lens with negative inflectional force which are arranged from the object side to the image side in sequence, wherein the object-side surface of the first lens is convex; the image-side surface of the second lens is concave; and the image-side surface of the fourth lens is concave, and the surfaces on the object-side surface and the image-side surface of the fourth lens are both aspheric. The optical lens for photograph shooting is further provided with an aperture and an electronic photosensitive element, wherein the aperture is arranged between the first lens and the second lens, and the electronic photosensitive element is arranged at the position of an imaging surface and used for enabling an object to be shot to form an image. The optical lens for photograph shooting is provided with four lenses with inflectional force. By means of the configuration mode of a lens group, the size of the lens can be effectively reduced, sensitiveness of an optical system is reduced, and large resolution power can be obtained.

Description

Photographing optical lens

The present invention is to be that May 18, application number in 2010 are 201010182932.4, denomination of invention is dividing an application of photographing optical lens the applying date.

Technical field

The invention relates to a kind of photographing optical lens; Particularly about a kind of miniaturization photographing optical lens that reduces the optical system susceptibility and have high resolution.

Background technology

The commonly see miniaturization photographing optical lens of tool high resolution, the optical systems that adopt preposition aperture and contain four pieces of lens more, wherein, first lens and the second lens are often bonded to each other with two pieces of glass spherical lenses and become a pair of and close lens (Doublet Lens), in order to color difference eliminating, such as United States Patent (USP) the 7th, shown in 365, No. 920, but the method has its shortcoming, one, too much spherical lens configuration causes the optics total length of system to be difficult for shortening so that degree of freedom in system is not enough, and they are two years old, the bonding processing procedure of glass mirror is difficult for, and causes the difficulty in the manufacturing.United States Patent (USP) the 7th, 277, provide a kind of lens combination of four pieces of separate lenses No. 238, include a plurality of non-spherical lenses, can effectively shorten the optics total length of system, and obtain good image quality, but owing to its aperture is arranged at before the first lens, so that the also relatively raising of the susceptibility of system is comparatively difficult to the control of making upper yield.

Summary of the invention

The invention provides a kind of photographing optical lens, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, it is concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, and the thing side surface of the 3rd lens be aspheric surface as at least one surface in the side surface; And the 4th lens of the negative refracting power of a tool, it is concave surface as side surface, and the thing side surface of the 4th lens and be all aspheric surface as side surface, its thing side surface be provided with at least one point of inflexion as at least one surface in the side surface; Wherein, this photographing optical lens is provided with an aperture and a sense electronics optical element in addition, this aperture is arranged between this first lens and this second lens, and this sense electronics optical element is arranged at the imaging surface place for the object imaging, and the lens of tool refracting power are four in this photographing optical lens; The focal length of whole photographing optical lens is f, the focal length of the 4th lens is f4, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, the abbe number of this first lens is V1, the abbe number of these the second lens is V2, this aperture is SL to the distance of imaging surface on optical axis, and the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies lower note relational expression:

-2.5<f／f4<-1.8；

2.0<(R5+R6)/(R5-R6)<5.0；

31.0＜V1-V2＜42.0; And

0.77<SL/TTL<0.92。

The present invention can effectively dwindle the susceptibility of camera lens volume, reduction optical system by the configuration mode of above-mentioned mirror group, more can obtain higher resolving power.

In the aforementioned photographing optical lens of the present invention, the positive refracting power of first lens tool provides system's refracting power, helps to shorten the optics total length of system; The second lens tool is born refracting power, but the aberration of update the system; The positive refracting power of the 3rd lens tool can effectively distribute the refracting power of this first lens, helps to reduce the susceptibility of system; The 4th lens tool is born refracting power, and it acts on as the revisal lens, but every aberration that balance and update the system produce.

Biconvex lens or thing side surface that in the photographing optical lens of the present invention, this first lens can be a thing side surface, be all convex surface as side surface are convex surface, are the crescent lens of concave surface as side surface; When this first lens is a biconvex lens, can effectively strengthen the refracting power configuration of this first lens, and then so that the total length of this photographing optical lens becomes shorter; When this first lens was the crescent lens of a convex-concave, then the spherical aberration (Spherical Aberration) for update the system was comparatively favourable.These the second lens be concave surface as side surface, the effectively Petzval of update the system and number (Petzval Sum), and can increase the back focal length of system have enough back focal length can place other member to guarantee this photographing optical lens; When these second lens are a biconcave lens, but the selection of compounding ingredient is to help the update the system aberration; When these second lens are the crescent lens of a convex-concave, then are beneficial to update the system astigmatism (Astigmatism), and reduce system sensitivity.When the thing side surface of the 3rd lens is concave surface and when being convex surface as side surface, can help the update the system higher order aberratons.The 4th lens can be the crescent lens of a biconcave lens or a convex-concave, when being all concave surface when the thing side surface of the 4th lens and as side surface, can make the principal point (principal point) of optical system away from imaging surface, be conducive to shorten the optics total length of system, to keep the miniaturization of camera lens; When the thing side surface of the 4th lens is convex surface and when being concave surface as side surface, can help astigmatism and the higher order aberratons of update the system.

In the aforementioned photographing optical lens of the present invention, this aperture can place between this first lens and this second lens.Provide positive refracting power by this first lens and the 3rd lens, and aperture placed object side near this photographing optical lens, can effectively shorten the optics total length of this photographing optical lens, in addition, above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this photographing optical lens away from imaging surface, therefore, light will be incident in the mode near vertical incidence on the photo-sensitive cell, this is the heart far away (Telecentric) characteristic of picture side, heart characteristic far away is very important for the photoperceptivity of solid-state electronic photo-sensitive cell at present, with so that the sensitization susceptibility of sense electronics optical element improves, the minimizing system produces the possibility at dark angle.In addition, can be provided with the point of inflexion at the 4th lens, be incident in angle on the photo-sensitive cell with more effectively suppressing from the light of axle visual field, and the further aberration of modified off-axis visual field.In addition, in wide-angle optics, need to do correction to distorting (Distortion) and multiplying power look receipts poor (Chromatic Aberration of Magnification) especially, its method is for to place system light flexion equilibrium of forces place with aperture, therefore in the aforementioned photographing optical lens of the present invention aperture being placed between this first lens and this second lens, is to be conducive to shortening the camera lens volume and reducing between the system sensitivity and obtain good balance.

Description of drawings

Fig. 1 is the photographing optical lens schematic diagram of first embodiment of the invention;

Fig. 2 is the aberration curve figure of first embodiment of the invention;

Fig. 3 is the photographing optical lens schematic diagram of second embodiment of the invention;

Fig. 4 is the aberration curve figure of second embodiment of the invention;

Fig. 5 is the photographing optical lens schematic diagram of third embodiment of the invention;

Fig. 6 is the aberration curve figure of third embodiment of the invention;

Fig. 7 is the photographing optical lens schematic diagram of fourth embodiment of the invention;

Fig. 8 is the aberration curve figure of fourth embodiment of the invention;

Fig. 9 is the photographing optical lens schematic diagram of fifth embodiment of the invention;

Figure 10 is the aberration curve figure of fifth embodiment of the invention;

Figure 11 is the photographing optical lens schematic diagram of sixth embodiment of the invention;

Figure 12 is the aberration curve figure of sixth embodiment of the invention;

Figure 13 is the photographing optical lens schematic diagram of seventh embodiment of the invention;

Figure 14 is the aberration curve figure of seventh embodiment of the invention;

Figure 15 is table one, is the optical data of first embodiment of the invention;

Figure 16 is table two, is the aspherical surface data of first embodiment of the invention;

Figure 17 is table three, is the optical data of second embodiment of the invention;

Figure 18 A, Figure 18 B are table four A and table four B, are the aspherical surface data of second embodiment of the invention;

Figure 19 is table five, is the optical data of third embodiment of the invention;

Figure 20 A, Figure 20 B are table six A and table six B, are the aspherical surface data of third embodiment of the invention;

Figure 21 is table seven, is the optical data of fourth embodiment of the invention;

Figure 22 A, Figure 22 B are table eight A and table eight B, are the aspherical surface data of fourth embodiment of the invention;

Figure 23 is table nine, is the optical data of fifth embodiment of the invention;

Figure 24 A, Figure 24 B are table ten A and table ten B, are the aspherical surface data of fifth embodiment of the invention;

Figure 25 is table ten one, is the optical data of sixth embodiment of the invention;

Figure 26 A, Figure 26 B are table ten two A and table ten two B, are the aspherical surface data of sixth embodiment of the invention;

Figure 27 is table ten three, is the optical data of seventh embodiment of the invention;

Figure 28 A, Figure 28 B are table ten four A and table ten four B, are the aspherical surface data of seventh embodiment of the invention;

Figure 29 is table ten five, is the numerical data of first embodiment of the invention to the seven embodiment correlationship formulas.

The main element symbol description:

Aperture 100,300,500,700,900,1100,1300

First lens 110,310,510,710,910,1110,1310

Thing side surface 111,311,511,711,911,1111,1311

Picture side surface 112,312,512,712,912,1112,1312

The second lens 120,320,520,720,920,1120,1320

Thing side surface 121,321,521,721,921,1121,1321

Picture side surface 122,322,522,722,922,1122,1322

The 3rd lens 130,330,530,730,930,1130,1330

Thing side surface 131,331,531,731,931,1131,1331

Picture side surface 132,332,532,732,932,1132,1332

The 4th lens 140,340,540,740,940,1140,1340

Thing side surface 141,341,541,741,941,1141,1341

Picture side surface 142,342,542,742,942,1142,1342

Infrared ray filtering optical filter 150,350,550,750,950,1150,1350

Imaging surface 160,360,560,760,960,1160,1360

The focal length of whole photographing optical lens is f

The focal length of first lens is f1

The focal length of the 3rd lens is f3

The focal length of the 4th lens is f4

The synthetic focal length of first lens and the second lens is f12

The abbe number of first lens is V1

The abbe number of the second lens is V2

First lens and the spacing distance of the second lens on optical axis are T12

The thing side surface radius-of-curvature of first lens is R1

First lens be R2 as the side surface radius-of-curvature

The thing side surface radius-of-curvature of the second lens is R3

The second lens be R4 as the side surface radius-of-curvature

The thing side surface radius-of-curvature of the 3rd lens is R5

The 3rd lens be R6 as the side surface radius-of-curvature

The f-number of whole photographing optical lens is Fno

Half of maximum visual angle is HFOV in the photographing optical lens

Aperture to the distance of imaging surface on optical axis is SL

The thing side surface of first lens to the distance of sense electronics optical element on optical axis is TTL

Half of sense electronics optical element effective pixel area diagonal line length is ImgH

Embodiment

The invention provides a kind of photographing optical lens, by the thing side to sequentially comprising as side: the first lens of the positive refracting power of a tool, its thing side surface and be all convex surface as side surface; The second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool; And the 4th lens of the negative refracting power of a tool, it is concave surface as side surface, and the thing side surface of the 4th lens and be all aspheric surface as side surface; Wherein, this photographing optical lens is provided with an aperture and a sense electronics optical element in addition, this aperture system is arranged between this first lens and this second lens, this sense electronics optical element system is arranged at the imaging surface place for the object imaging, and the lens of tool refracting power are four in this photographing optical lens, the focal length of whole photographing optical lens is f, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, the thing side surface radius-of-curvature of this first lens is R1, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, this aperture to the distance of imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, is to satisfy lower note relational expression:

-0.27<(f/f1)-(f／f3)<-0.05；

0.2<R1/f<0.5；

1.40＜R5/R6＜4.30; And

0.77<SL/TTL<0.92。

When (f1)-(f/f3) satisfied the above-mentioned relation formula, effectively the required positive refracting power of distribution system avoided the refracting power of single lens excessive, and then effectively reduced the susceptibility of system.When R1/f satisfies the above-mentioned relation formula, can provide this first lens enough positive refracting powers, can not produce too much higher order aberratons simultaneously.When R5/R6 satisfies the above-mentioned relation formula, be conducive to the astigmatism of update the system.When SL/TTL satisfies the above-mentioned relation formula, be conducive to shortening the camera lens volume and reducing between the system sensitivity and obtain good balance.

In the aforementioned photographing optical lens of the present invention, preferably, the thing side surface of the 3rd lens is concave surface and is convex surface as side surface, and it can help the update the system astigmatism; Preferably, the thing side surface of the 4th lens is convex surface and is concave surface as side surface, astigmatism and the higher order aberratons that can help update the system to produce.

In the aforementioned photographing optical lens of the present invention, preferably, the material of the 4th lens can be plastic cement, and the plastic cement material lens not only are conducive to the making of non-spherical lens, more can effectively reduce production costs.

In the aforementioned photographing optical lens of the present invention, the focal length of whole photographing optical lens is f, and the focal length of this first lens is f1, preferably, satisfies lower note relational expression: 1.43＜f/f1＜2.20.When f/f1 satisfies the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, the effective optics total length of control system, and can avoid simultaneously the excessive increase of high-order spherical aberration (High Order Spherical Aberration), with the elevator system image quality; Further, better system satisfies lower note relational expression: 1.53＜f/f1＜2.00.

In the aforementioned photographing optical lens of the present invention, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, preferably, is to satisfy lower note relational expression: 31.0＜V1-V2＜42.0; When V1-V2 satisfies the above-mentioned relation formula, be conducive to the correction of aberration in the photographing optical lens.

In the aforementioned photographing optical lens of the present invention, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, preferably, is to satisfy lower note relational expression: 1.85＜R5/R6＜3.50; When R5/R6 satisfies the above-mentioned relation formula, be conducive to the astigmatism of update the system.

In the aforementioned photographing optical lens of the present invention, the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, preferably, is to satisfy lower note relational expression :-1.2＜f3/f4＜-0.8; When f3/f4 satisfies the above-mentioned relation formula, be conducive to guarantee one positive one negative looking in the distance (Telephoto) structure of the 3rd lens and the formation of the 4th lens, can effectively reduce the system optics total length.

In the aforementioned photographing optical lens of the present invention, the thing side surface radius-of-curvature of this first lens is R1 and is R2 as the side surface radius-of-curvature, preferably, is to satisfy lower note relational expression :-1.00＜R1/R2＜-0.05; When R1/R2 satisfies the above-mentioned relation formula, can be conducive to the revisal of system's spherical aberration.

In the aforementioned photographing optical lens of the present invention, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens is f4, preferably, is to satisfy lower note relational expression :-2.5＜f/f4＜-1.5; When f/f4 satisfies the above-mentioned relation formula, can effectively revise the aberration that the 3rd lens produce, with the elevator system image quality.

In the aforementioned photographing optical lens of the present invention, the thing side surface radius-of-curvature of these the second lens is R3 and is R4 as the side surface radius-of-curvature, preferably, is to satisfy lower note relational expression :-10.0＜R3/R4＜-1.0; When R3/R4 satisfies the above-mentioned relation formula, be conducive to the negative refracting power that provides these second lens enough, with the aberration of update the system.

In the aforementioned photographing optical lens of the present invention, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, preferably, is to satisfy lower note relational expression: TTL/ImgH＜2.1; When TTL/ImgH satisfies the above-mentioned relation formula, be conducive to keep the miniaturization of this photographing optical lens, on the electronic product that is equipped on frivolous miniaturization.

On the other hand, the invention provides a kind of photographing optical lens, by the thing side to sequentially comprising as side: the first lens of the positive refracting power of a tool, its thing side surface and be all convex surface as side surface; The second lens of the negative refracting power of one tool, it is concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, and the thing side surface of the 3rd lens be aspheric surface as at least one surface in the side surface; And the 4th lens of the negative refracting power of a tool, it is concave surface as side surface, and the thing side surface of the 4th lens and be all aspheric surface as side surface, its thing side surface be provided with at least one point of inflexion as at least one surface in the side surface; Wherein, this photographing optical lens is provided with an aperture and a sense electronics optical element in addition, this aperture system is arranged between this first lens and this second lens, this sense electronics optical element system is arranged at the imaging surface place for the object imaging, and the lens of tool refracting power are four in this photographing optical lens, the focal length of whole photographing optical lens is f, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, the abbe number of this first lens is V1, the abbe number of these the second lens is V2, the thing side surface radius-of-curvature of this first lens is R1 and is R2 as the side surface radius-of-curvature, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, this aperture to the distance of imaging surface on optical axis is SL, and half of this sense electronics optical element effective pixel area diagonal line length is ImgH, is to satisfy lower note relational expression:

-0.27<(f/f1)-(f／f3)<-0.05；

31.0<V1-V2<42.0；

-2.00<R1／R2<-0.01；

1.40<R5／R6<4.30；

0.77＜SL/TTL＜0.92; And

TTL/ImgH<1.95。

When (f1)-(f/f3) satisfied the above-mentioned relation formula, effectively the required positive refracting power of distribution system avoided the refracting power of single lens excessive, and then effectively reduced the susceptibility of system.When V1-V2 satisfies the above-mentioned relation formula, be conducive to the correction of aberration in the photographing optical lens.When R1/R2 satisfies the above-mentioned relation formula, can be conducive to the revisal of system's spherical aberration; Further, better system satisfies lower note relational expression :-1.00＜R1/R2＜-0.05.When R5/R6 satisfies the above-mentioned relation formula, be conducive to the astigmatism of update the system.When SL/TTL satisfies the above-mentioned relation formula, be conducive to shortening the camera lens volume and reducing between the system sensitivity and obtain good balance.When TTL/ImgH satisfies the above-mentioned relation formula, be conducive to keep the miniaturization of this photographing optical lens, on the electronic product that is equipped on frivolous miniaturization.

In the aforementioned photographing optical lens of the present invention, preferably, the thing side surface of the 4th lens is convex surface and is concave surface as side surface, astigmatism and the higher order aberratons that can help update the system to produce.

In the aforementioned photographing optical lens of the present invention, the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, preferably, is to satisfy lower note relational expression :-1.2＜f3/f4＜-0.8; When f3/f4 satisfies the above-mentioned relation formula, be conducive to guarantee the 3rd lens and the 4th lens form the one positive one negative structure of looking in the distance effectively to reduce the system optics total length.

In the aforementioned photographing optical lens of the present invention, this first lens and the spacing distance of these the second lens on optical axis are T12, and the focal length of whole photographing optical lens is f, preferably, are to satisfy lower note relational expression: 0.5＜(T12/f) * 100＜4.0; When T12/f satisfied the above-mentioned relation formula, can guarantee had enough spaces can place aperture between this first lens and this second lens, and so disposes the higher order aberratons that is beneficial to update the system.

In the aforementioned photographing optical lens of the present invention, the 4th lens be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, preferably, system satisfies lower note relational expression: 0.20＜R8/f＜0.35, when R8/f satisfies the above-mentioned relation formula, can shorten the back focal length of system, to reduce the optics total length of photographing optical lens.

In the aforementioned photographing optical lens of the present invention, the focal length of whole photographing optical lens is f, and the focal length of this first lens is f1, preferably, is to satisfy lower note relational expression: 1.53＜f/f1＜2.00; When f/f1 satisfied the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, the effective optics total length of control system, and can avoid simultaneously the excessive increase of high-order spherical aberration, with the elevator system image quality.

Again on the other hand, the invention provides a kind of photographing optical lens, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, it is concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, and the thing side surface of the 3rd lens be aspheric surface as at least one surface in the side surface; And the 4th lens of the negative refracting power of a tool, it is concave surface as side surface, and the thing side surface of the 4th lens and be all aspheric surface as side surface, its thing side surface be provided with at least one point of inflexion as at least one surface in the side surface; Wherein, this photographing optical lens is provided with an aperture and a sense electronics optical element in addition, this aperture system is arranged between this first lens and this second lens, this sense electronics optical element system is arranged at the imaging surface place for the object imaging, and the lens of tool refracting power are four in this photographing optical lens, the focal length of whole photographing optical lens is f, the focal length of the 4th lens is f4, the thing side surface radius-of-curvature of the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, the abbe number of this first lens is V1, the abbe number of these the second lens is V2, this aperture to the distance of imaging surface on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, is to satisfy lower note relational expression:

-2.5<f／f4<-1.5；

2.0<(R5+R6)/(R5-R6)<5.0；

31.0＜V1-V2＜42.0; And

0.77<SL/TTL<0.92。

When f/f4 satisfies the above-mentioned relation formula, can effectively revise the aberration that the 3rd lens produce, with the elevator system image quality; Further, better system satisfies lower note relational expression :-2.2＜f/f4＜-1.8.When (R5+R6)/(R5-R6) satisfies the above-mentioned relation formula, can control the shape of the 3rd lens, with the modified off-axis aberration; Further, better system satisfies lower note relational expression: 2.2＜(R5+R6)/(R5-R6)＜2.8.When V1-V2 satisfies the above-mentioned relation formula, be conducive to the correction of aberration in the photographing optical lens.When SL/TTL satisfies the above-mentioned relation formula, be conducive to shortening the camera lens volume and reducing between the system sensitivity and obtain good balance.

In the aforementioned photographing optical lens of the present invention, preferably, the thing side surface of the 4th lens is concave surface, can make the principal point of optical system away from imaging surface, is conducive to shorten the optics total length of system, to keep the miniaturization of camera lens; Preferably, the thing side surface of these the second lens is concave surface, the effectively Petzval of update the system and number, and can increase the back focal length of system, there are enough back focal length can place other member to guarantee this photographing optical lens.

In the photographing optical lens of the present invention, the material of lens can be glass or plastic cement, if the material of lens is glass, then can increase the degree of freedom of system's refracting power configuration, if the lens material is plastic cement, then can effectively reduce production costs.In addition, aspheric surface can be set on lens surface, aspheric surface can easily be made into the shape beyond the sphere, obtain more controlled variable, in order to subduing aberration, and then the number that uses of reduction lens, and can effectively reduce the optics total length of photographing optical lens of the present invention.

In the photographing optical lens of the present invention, if lens surface is convex surface, represent that then this lens surface is convex surface in paraxial place; If lens surface is concave surface, represent that then this lens surface is concave surface in paraxial place.

Photographing optical lens of the present invention will cooperate institute's accompanying drawing to be described in detail by following specific embodiment.

The first embodiment

First embodiment of the invention sees also Fig. 1, and the aberration curve of the first embodiment sees also Fig. 2.The photographing optical lens of the first embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 110 of the positive refracting power of one tool, its thing side surface 111 are that convex surface and picture side surface 112 are convex surface, and its material is plastic cement, the thing side surface 111 of this first lens 110 and be all aspheric surface as side surface 112;

The second lens 120 of the negative refracting power of one tool, its thing side surface 121 be that concave surface and picture side surface 122 are concave surface, and its material is plastic cement, the thing side surface 121 of these the second lens 120 and be all aspheric surface as side surface 122;

The 3rd lens 130 of the positive refracting power of one tool, its thing side surface 131 are that concave surface and picture side surface 132 are convex surface, and its material is plastic cement, the thing side surface 131 of the 3rd lens 130 and be all aspheric surface as side surface 132;

The 4th lens 140 of the negative refracting power of one tool, its thing side surface 141 is that concave surface and picture side surface 142 are concave surface, its material is plastic cement, the thing side surface 141 of the 4th lens 140 and be all aspheric surface as side surface 142, and the thing side surface 141 of the 4th lens 140 be provided with at least one point of inflexion as at least one surface in the side surface 142; And

One aperture 100 places between this first lens 110 and this second lens 120;

Other includes an infrared ray filtering optical filter (IR-filter) 150, places between the picture side surface 142 and an imaging surface 160 of the 4th lens 140; The material of this infrared ray filtering optical filter 150 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

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

X (Y) = (Y^{2} / R) / (1 + sqrt (1 - (1 + k) * {(Y / R)}^{2})) + \underset{i}{Σ} (Ai) * (Y^{i})

Wherein:

X: be the point of Y apart from optical axis on the aspheric surface, itself and the relative height that is tangential on the tangent plane on summit on the aspheric surface optical axis;

Y: the point on the aspheric curve and the distance of optical axis;

K: conical surface coefficient;

Ai: i rank asphericity coefficient.

In the first embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=2.72 (millimeter).

In the first embodiment photographing optical lens, the f-number of whole photographing optical lens (f-number) is Fno, and its relational expression is: Fno=2.85.

In the first embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=33.1 (degree).

In the first embodiment photographing optical lens, the abbe number of this first lens 110 is V1, and the abbe number of these the second lens 120 is V2, and its relational expression is: V1-V2=32.5.

In the first embodiment photographing optical lens, first lens 110 and the spacing distance of the second lens 120 on optical axis are T12, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=2.2.

In the first embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 110 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.31.

In the first embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 120 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-5.26.

In the first embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 130 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=2.82; And (R5+R6)/(R5-R6)=2.10.

In the first embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 110 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.41.

In the first embodiment photographing optical lens, the 4th lens 140 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.35.

In the first embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 110 is f1, and its relational expression is: f/f1=1.68.

In the first embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 140 is f4, and its relational expression is: f/f4=-1.80.

In the first embodiment photographing optical lens, the focal length of the 3rd lens 130 is f3, and the focal length of the 4th lens 140 is f4, and its relational expression is: f3/f4=-0.97.

In the first embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 110 is f1, and the focal length of the 3rd lens 130 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.17.

In the first embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 160 places for the object imaging thereon in addition, this aperture 100 to the distance of imaging surface 160 on optical axis is SL, the thing side surface 111 of this first lens 110 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.85.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.80.

The detailed optical data of the first embodiment is shown in Figure 15 table one, and its aspherical surface data is shown in Figure 16 table two, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The second embodiment

Second embodiment of the invention sees also Fig. 3, and the aberration curve of the second embodiment sees also Fig. 4.The photographing optical lens of the second embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 310 of the positive refracting power of one tool, its thing side surface 311 are that convex surface and picture side surface 312 are convex surface, and its material is plastic cement, the thing side surface 311 of this first lens 310 and be all aspheric surface as side surface 312;

The second lens 320 of the negative refracting power of one tool, its thing side surface 321 be that concave surface and picture side surface 322 are concave surface, and its material is plastic cement, the thing side surface 321 of these the second lens 320 and be all aspheric surface as side surface 322;

The 3rd lens 330 of the positive refracting power of one tool, its thing side surface 331 are that concave surface and picture side surface 332 are convex surface, and its material is plastic cement, the thing side surface 331 of the 3rd lens 330 and be all aspheric surface as side surface 332;

The 4th lens 340 of the negative refracting power of one tool, its thing side surface 341 is that concave surface and picture side surface 342 are concave surface, its material is plastic cement, the thing side surface 341 of the 4th lens 340 and be all aspheric surface as side surface 342, and the thing side surface 341 of the 4th lens 340 be provided with at least one point of inflexion as at least one surface in the side surface 342; And

One aperture 300 places between this first lens 310 and this second lens 320;

Other includes an infrared ray filtering optical filter 350, places between the picture side surface 342 and an imaging surface 360 of the 4th lens 340; The material of this infrared ray filtering optical filter 350 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the second embodiment aspheric curve is as the pattern of the first embodiment.

In the second embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=4.57 (millimeter).

In the second embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.85.

In the second embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=31.8 (degree).

In the second embodiment photographing optical lens, the abbe number of this first lens 310 is V1, and the abbe number of these the second lens 320 is V2, and its relational expression is: V1-V2=32.5.

In the second embodiment photographing optical lens, this first lens 310 is T12 with the spacing distance of these the second lens 320 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=1.4.

In the second embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 310 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.06.

In the second embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 320 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-8.17.

In the second embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 330 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=1.98; And (R5+R6)/(R5-R6)=3.05.

In the second embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 310 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.32.

In the second embodiment photographing optical lens, the 4th lens 340 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.29.

In the second embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 310 is f1, and its relational expression is: f/f1=1.81.

In the second embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 340 is f4, and its relational expression is: f/f4=-2.00.

In the second embodiment photographing optical lens, the focal length of the 3rd lens 330 is f3, and the focal length of the 4th lens 340 is f4, and its relational expression is: f3/f4=-0.99.

In the second embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 310 is f1, and the focal length of the 3rd lens 330 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.19.

In the second embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 360 places for the object imaging thereon in addition, this aperture 300 to the distance of imaging surface 360 on optical axis is SL, the thing side surface 311 of this first lens 310 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.87.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.75.

The detailed optical data of the second embodiment is shown in Figure 17 table three, and its aspherical surface data is shown in Figure 18 A, table four A and Figure 18 B table four B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 3rd embodiment

Third embodiment of the invention sees also Fig. 5, and the aberration curve of the 3rd embodiment sees also Fig. 6.The photographing optical lens of the 3rd embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 510 of the positive refracting power of one tool, its thing side surface 511 are that convex surface and picture side surface 512 are convex surface, and its material is plastic cement, the thing side surface 511 of this first lens 510 and be all aspheric surface as side surface 512;

The second lens 520 of the negative refracting power of one tool, its thing side surface 521 be that concave surface and picture side surface 522 are concave surface, and its material is plastic cement, the thing side surface 521 of these the second lens 520 and be all aspheric surface as side surface 522;

The 3rd lens 530 of the positive refracting power of one tool, its thing side surface 531 are that concave surface and picture side surface 532 are convex surface, and its material is plastic cement, the thing side surface 531 of the 3rd lens 530 and be all aspheric surface as side surface 532;

The 4th lens 540 of the negative refracting power of one tool, its thing side surface 541 is that convex surface and picture side surface 542 are concave surface, its material is plastic cement, the thing side surface 541 of the 4th lens 540 and be all aspheric surface as side surface 542, and the thing side surface 541 of the 4th lens 540 be provided with at least one point of inflexion as at least one surface in the side surface 542; And

One aperture 500 places between this first lens 510 and this second lens 520;

Other includes an infrared ray filtering optical filter 550, places between the picture side surface 542 and an imaging surface 560 of the 4th lens 540; The material of this infrared ray filtering optical filter 550 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the 3rd embodiment aspheric curve is as the pattern of the first embodiment.

In the 3rd embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=3.76 (millimeter).

In the 3rd embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.50.

In the 3rd embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=30.6 (degree).

In the 3rd embodiment photographing optical lens, the abbe number of this first lens 510 is V1, and the abbe number of these the second lens 520 is V2, and its relational expression is: V1-V2=32.5.

In the 3rd embodiment photographing optical lens, this first lens 510 is T12 with the spacing distance of these the second lens 520 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=3.3.

In the 3rd embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 510 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.58.

In the 3rd embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 520 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-1.32.

In the 3rd embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 530 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=3.27; And (R5+R6)/(R5-R6)=1.88.

In the 3rd embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 510 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.48.

In the 3rd embodiment photographing optical lens, the 4th lens 540 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.26.

In the 3rd embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 510 is f1, and its relational expression is: f/f1=1.72.

In the 3rd embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 540 is f4, and its relational expression is: f/f4=-1.83.

In the 3rd embodiment photographing optical lens, the focal length of the 3rd lens 530 is f3, and the focal length of the 4th lens 540 is f4, and its relational expression is: f3/f4=-1.00.

In the 3rd embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 510 is f1, and the focal length of the 3rd lens 530 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.12.

In the 3rd embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 560 places for the object imaging thereon in addition, this aperture 500 to the distance of imaging surface 560 on optical axis is SL, the thing side surface 511 of this first lens 510 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.86.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=2.08.

The detailed optical data of the 3rd embodiment is shown in Figure 19 table five, and its aspherical surface data is shown in Figure 20 A, Figure 20 B table six A and table six B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 4th embodiment

Fourth embodiment of the invention sees also Fig. 7, and the aberration curve of the 4th embodiment sees also Fig. 8.The photographing optical lens of the 4th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 710 of the positive refracting power of one tool, its thing side surface 711 are that convex surface and picture side surface 712 are convex surface, and its material is plastic cement, the thing side surface 711 of this first lens 710 and be all aspheric surface as side surface 712;

The second lens 720 of the negative refracting power of one tool, its thing side surface 721 be that convex surface and picture side surface 722 are concave surface, and its material is plastic cement, the thing side surface 721 of these the second lens 720 and be all aspheric surface as side surface 722;

The 3rd lens 730 of the positive refracting power of one tool, its thing side surface 731 are that concave surface and picture side surface 732 are convex surface, and its material is plastic cement, the thing side surface 731 of the 3rd lens 730 and be all aspheric surface as side surface 732;

The 4th lens 740 of the negative refracting power of one tool, its thing side surface 741 is that convex surface and picture side surface 742 are concave surface, its material is plastic cement, the thing side surface 741 of the 4th lens 740 and be all aspheric surface as side surface 742, and the thing side surface 741 of the 4th lens 740 be provided with at least one point of inflexion as at least one surface in the side surface 742; And

One aperture 700 places between this first lens 710 and this second lens 720;

Other includes an infrared ray filtering optical filter 750, places between the picture side surface 742 and an imaging surface 760 of the 4th lens 740; The material of this infrared ray filtering optical filter 750 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the 4th embodiment aspheric curve is as the pattern of the first embodiment.

In the 4th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=3.42 (millimeter).

In the 4th embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.80.

In the 4th embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=33.0 (degree).

In the 4th embodiment photographing optical lens, the abbe number of this first lens 710 is V1, and the abbe number of these the second lens 720 is V2, and its relational expression is: V1-V2=32.5.

In the 4th embodiment photographing optical lens, this first lens 710 is T12 with the spacing distance of these the second lens 720 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=3.1.

In the 4th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 710 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.09.

In the 4th embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 720 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=4.53.

In the 4th embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 730 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=2.81; And (R5+R6)/(R5-R6)=2.10.

In the 4th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 710 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.46.

In the 4th embodiment photographing optical lens, the 4th lens 740 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.27.

In the 4th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 710 is f1, and its relational expression is: f/f1=1.28.

In the 4th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 740 is f4, and its relational expression is: f/f4=-1.45.

In the 4th embodiment photographing optical lens, the focal length of the 3rd lens 730 is f3, and the focal length of the 4th lens 740 is f4, and its relational expression is: f3/f4=-0.96.

In the 4th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 710 is f1, and the focal length of the 3rd lens 730 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.24.

In the 4th embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 760 places for the object imaging thereon in addition, this aperture 700 to the distance of imaging surface 760 on optical axis is SL, the thing side surface 711 of this first lens 710 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.86.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.92.

The detailed optical data of the 4th embodiment is shown in Figure 21 table seven, and its aspherical surface data is shown in Figure 22 A, Figure 22 B table eight A and table eight B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 5th embodiment

Fifth embodiment of the invention sees also Fig. 9, and the aberration curve of the 5th embodiment sees also Figure 10.The photographing optical lens of the 5th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 910 of the positive refracting power of one tool, its thing side surface 911 are that convex surface and picture side surface 912 are convex surface, and its material is plastic cement, the thing side surface 911 of this first lens 910 and be all aspheric surface as side surface 912;

The second lens 920 of the negative refracting power of one tool, its thing side surface 921 be that concave surface and picture side surface 922 are concave surface, and its material is plastic cement, the thing side surface 921 of these the second lens 920 and be all aspheric surface as side surface 922;

The 3rd lens 930 of the positive refracting power of one tool, its thing side surface 931 are that concave surface and picture side surface 932 are convex surface, and its material is plastic cement, the thing side surface 931 of the 3rd lens 930 and be all aspheric surface as side surface 932;

The 4th lens 940 of the negative refracting power of one tool, its thing side surface 941 is that concave surface and picture side surface 942 are concave surface, its material is plastic cement, and the thing side surface 941 of the 4th lens 940 be all aspheric surface as side surface 942, the thing side surface 941 of the 4th lens 940 and be provided with at least one point of inflexion as at least one surface in the side surface 942; And

One aperture 900 places between this first lens 910 and this second lens 920;

Other includes an infrared ray filtering optical filter 950, places between the picture side surface 942 and an imaging surface 960 of the 4th lens 940; The material of this infrared ray filtering optical filter 950 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the 5th embodiment aspheric curve is as the pattern of the first embodiment.

In the 5th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=2.92 (millimeter).

In the 5th embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.47.

In the 5th embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=33.1 (degree).

In the 5th embodiment photographing optical lens, the abbe number of this first lens 910 is V1, and the abbe number of these the second lens 920 is V2, and its relational expression is: V1-V2=32.5.

In the 5th embodiment photographing optical lens, this first lens 910 is T12 with the spacing distance of these the second lens 920 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=2.5.

In the 5th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 910 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.14.

In the 5th embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 920 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-2.94.

In the 5th embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 930 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=2.53; And (R5+R6)/(R5-R6)=2.31.

In the 5th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 910 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.36.

In the 5th embodiment photographing optical lens, the 4th lens 940 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.31.

In the 5th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 910 is f1, and its relational expression is: f/f1=1.68.

In the 5th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 940 is f4, and its relational expression is: f/f4=-1.83.

In the 5th embodiment photographing optical lens, the focal length of the 3rd lens 930 is f3, and the focal length of the 4th lens 940 is f4, and its relational expression is: f3/f4=-1.07.

In the 5th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 910 is f1, and the focal length of the 3rd lens 930 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.04.

In the 5th embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 960 places for the object imaging thereon in addition, this aperture 900 to the distance of imaging surface 960 on optical axis is SL, the thing side surface 911 of this first lens 910 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.83.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.71.

The detailed optical data of the 5th embodiment is shown in Figure 23 table nine, and its aspherical surface data is shown in Figure 24 A table ten A and Figure 24 B table ten B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 6th embodiment

Sixth embodiment of the invention sees also Figure 11, and the aberration curve of the 6th embodiment sees also Figure 12.The photographing optical lens of the 6th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 1110 of the positive refracting power of one tool, its thing side surface 1111 are that convex surface and picture side surface 1112 are convex surface, and its material is plastic cement, the thing side surface 1111 of this first lens 1110 and be all aspheric surface as side surface 1112;

The second lens 1120 of the negative refracting power of one tool, its thing side surface 1121 be that concave surface and picture side surface 1122 are concave surface, and its material is plastic cement, the thing side surface 1121 of these the second lens 1120 and be all aspheric surface as side surface 1122;

The 3rd lens 1130 of the positive refracting power of one tool, its thing side surface 1131 are that concave surface and picture side surface 1132 are convex surface, and its material is plastic cement, the thing side surface 1131 of the 3rd lens 1130 and be all aspheric surface as side surface 1132;

The 4th lens 1140 of the negative refracting power of one tool, its thing side surface 1141 is that concave surface and picture side surface 1142 are concave surface, its material is plastic cement, the thing side surface 1141 of the 4th lens 1140 and be all aspheric surface as side surface 1142, and the thing side surface 1141 of the 4th lens 1140 be provided with at least one point of inflexion as at least one surface in the side surface 1142; And

One aperture 1100 places between this first lens 1110 and this second lens 1120;

Other includes an infrared ray filtering optical filter 1150, places between the picture side surface 1142 and an imaging surface 1160 of the 4th lens 1140; The material of this infrared ray filtering optical filter 1150 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the 6th embodiment aspheric curve is as the pattern of the first embodiment.

In the 6th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=2.92 (millimeter).

In the 6th embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.45.

In the 6th embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=31.5 (degree).

In the 6th embodiment photographing optical lens, the abbe number of this first lens 1110 is V1, and the abbe number of these the second lens (1120) is V2, and its relational expression is: V1-V2=32.5.

In the 6th embodiment photographing optical lens, this first lens 1110 is T12 with the spacing distance of these the second lens 1120 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=1.7.

In the 6th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 1110 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.35.

In the 6th embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 1120 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-2.16.

In the 6th embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 1130 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=2.26; And (R5+R6)/(R5-R6)=2.59.

In the 6th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 1110 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.41.

In the 6th embodiment photographing optical lens, the 4th lens 1140 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.30.

In the 6th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 1110 is f1, and its relational expression is: f/f1=1.71.

In the 6th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 1140 is f4, and its relational expression is: f/f4=-1.96.

In the 6th embodiment photographing optical lens, the focal length of the 3rd lens 1130 is f3, and the focal length of the 4th lens 1140 is f4, and its relational expression is: f3/f4=-0.98.

In the 6th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of first lens 1110 is f1, and the focal length of the 3rd lens 1130 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.29.

In the 6th embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 1160 places for the object imaging thereon in addition, this aperture 1100 to the distance of imaging surface 1160 on optical axis is SL, the thing side surface 1111 of this first lens 1110 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.87.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.94.

The detailed optical data of the 6th embodiment is shown in Figure 25 table ten one, and its aspherical surface data is shown in Figure 26 A table ten two A and Figure 26 B table ten two B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 7th embodiment

Seventh embodiment of the invention sees also Figure 13, and the aberration curve of the 7th embodiment sees also Figure 14.The photographing optical lens of the 7th embodiment mainly is made of four pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 1310 of the positive refracting power of one tool, its thing side surface 1311 are that convex surface and picture side surface 1312 are convex surface, and its material is plastic cement, the thing side surface 1311 of this first lens 1310 and be all aspheric surface as side surface 1312;

The second lens 1320 of the negative refracting power of one tool, its thing side surface 1321 be that concave surface and picture side surface 1322 are concave surface, and its material is plastic cement, the thing side surface 1321 of these the second lens 1320 and be all aspheric surface as side surface 1322;

The 3rd lens 1330 of the positive refracting power of one tool, its thing side surface 1331 are that concave surface and picture side surface 1332 are convex surface, and its material is plastic cement, the thing side surface 1331 of the 3rd lens 1330 and be all aspheric surface as side surface 1332;

The 4th lens 1340 of the negative refracting power of one tool, its thing side surface 1341 is that concave surface and picture side surface 1342 are concave surface, its material is plastic cement, the thing side surface 1341 of the 4th lens 1340 and be all aspheric surface as side surface 1342, and the thing side surface 1341 of the 4th lens 1340 be provided with at least one point of inflexion as at least one surface in the side surface 1342; And

One aperture 1300 places between this first lens 1310 and this second lens 1320;

Other includes an infrared ray filtering optical filter 1350, places between the picture side surface 1342 and an imaging surface 1360 of the 4th lens 1340; The material of this infrared ray filtering optical filter 1350 is that glass and its do not affect the focal length of photographing optical lens of the present invention.

The equational expression of the 7th embodiment aspheric curve is as the pattern of the first embodiment.

In the 7th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and its relational expression is: f=2.74 (millimeter).

In the 7th embodiment photographing optical lens, the f-number of whole photographing optical lens is Fno, and its relational expression is: Fno=2.85.

In the 7th embodiment photographing optical lens, half of the maximum visual angle of whole photographing optical lens is HFOV, and its relational expression is: HFOV=33.0 (degree).

In the 7th embodiment photographing optical lens, the abbe number of this first lens 1310 is V1, and the abbe number of these the second lens 1320 is V2, and its relational expression is: V1-V2=32.5.

In the 7th embodiment photographing optical lens, this first lens 1310 is T12 with the spacing distance of these the second lens 1320 on optical axis, and the focal length of whole photographing optical lens is f, and its relational expression is: (T12/f) * 100=2.4.

In the 7th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 1310 is R1 and is R2 as the side surface radius-of-curvature, and its relational expression is: R1/R2=-0.26.

In the 7th embodiment photographing optical lens, the thing side surface radius-of-curvature of these the second lens 1320 is R3 and is R4 as the side surface radius-of-curvature, and its relational expression is: R3/R4=-2.69.

In the 7th embodiment photographing optical lens, the thing side surface radius-of-curvature of the 3rd lens 1330 is R5 and is R6 as the side surface radius-of-curvature, and its relational expression is: R5/R6=2.46; And (R5+R6)/(R5-R6)=2.37.

In the 7th embodiment photographing optical lens, the thing side surface radius-of-curvature of this first lens 1310 is R1, and the focal length of whole photographing optical lens is f, and its relational expression is: R1/f=0.41.

In the 7th embodiment photographing optical lens, the 4th lens 1340 be R8 as the side surface radius-of-curvature, the focal length of whole photographing optical lens is f, its relational expression is: R8/f=0.31.

In the 7th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 1310 is f1, and its relational expression is: f/f1=1.62.

In the 7th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of the 4th lens 1340 is f4, and its relational expression is: f/f4=-2.00.

In the 7th embodiment photographing optical lens, the focal length of the 3rd lens 1330 is f3, and the focal length of the 4th lens 1340 is f4, and its relational expression is: f3/f4=-1.01.

In the 7th embodiment photographing optical lens, the focal length of whole photographing optical lens is f, and the focal length of this first lens 1310 is f1, and the focal length of the 3rd lens 1330 is f3, and its relational expression is: (f/f1)-(f/f3)=-0.35.

In the 7th embodiment photographing optical lens, this photographing optical lens arranges a sense electronics optical element in imaging surface 1360 places for the object imaging thereon in addition, this aperture 1300 to the distance of imaging surface 1360 on optical axis is SL, the thing side surface 1311 of this first lens 1310 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.87.Moreover half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.82.

The detailed optical data of the 7th embodiment is shown in Figure 27 table ten three, and its aspherical surface data is shown in Figure 28 A table ten four A and Figure 28 B table ten four B, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

Table one is depicted as the different numerical value change tables of photographing optical lens embodiment of the present invention to table ten four (respectively corresponding Figure 15 to Figure 28 B); the all true gained of testing of numerical value change of right each embodiment of the present invention; even use different numerical value; the product of same structure must belong to protection category of the present invention; therefore above explanation is described and accompanying drawing only as exemplary, non-in order to limit protection scope of the present invention.Table ten five (corresponding Figure 29) is the numerical data of the corresponding correlationship formula of the present invention of each embodiment.

Claims

1. a photographing optical lens is characterized in that, described camera lens is extremely sequentially comprised as side by the thing side:

The first lens of the positive refracting power of one tool, its thing side surface is convex surface;

The second lens of the negative refracting power of one tool, it is concave surface as side surface;

The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface, and the thing side surface of described the 3rd lens be aspheric surface as at least one surface in the side surface; And

The 4th lens of the negative refracting power of one tool, it is concave surface as side surface, and the thing side surface of described the 4th lens and be all aspheric surface as side surface, its thing side surface be provided with at least one point of inflexion as at least one surface in the side surface;

Wherein, described photographing optical lens is provided with an aperture and a sense electronics optical element in addition, described aperture is arranged between described first lens and described the second lens, described sense electronics optical element is arranged at the imaging surface place for the object imaging, and the lens of tool refracting power are four in the described photographing optical lens, the focal length of whole photographing optical lens is f, the focal length of described the 4th lens is f4, the thing side surface radius-of-curvature of described the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, the abbe number of described first lens is V1, the abbe number of described the second lens is V2, described aperture and the imaging surface distance on optical axis is SL, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies lower note relational expression:

-2.5<f／f4<-1.8；

2.0<(R5+R6)/(R5-R6)<5.0；

31.0＜V1-V2＜42.0; And

0.77<SL/TTL<0.92。

2. photographing optical lens as claimed in claim 1 is characterized in that, the thing side surface radius-of-curvature of described the 3rd lens is R5 and is R6 as the side surface radius-of-curvature, satisfies lower note relational expression:

2.2<(R5+R6)/(R5-R6)<2.8。

3. photographing optical lens as claimed in claim 2 is characterized in that, wherein the focal length of whole photographing optical lens is f, and the focal length of described the 4th lens is f4, satisfies lower note relational expression:

-2.2<f/f4<-1.8。

4. photographing optical lens as claimed in claim 3, it is characterized in that, the thing side surface of described the 4th lens is concave surface, and described first lens and the spacing distance of described the second lens on optical axis are T12, the focal length of whole photographing optical lens is f, satisfies lower note relational expression:

0.5<(T12/f)*100<4.0。

5. photographing optical lens as claimed in claim 3 is characterized in that, the thing side surface of described the second lens is concave surface.