CN102269861B - Optical lens group for shooting - Google Patents

Abstract

The invention discloses an optical lens group for shooting, which comprises a first lens with positive refractive power, a second lens with negative refractive power, a third lens with the positive refractive power, a fourth lens with the negative refractive power and a fifth lens, and is also provided with an aperture and an electronic light sensitive element for imaging a shot object, wherein an object side surface of the first lens is a convex surface; an object side surface and an image side surface of the second lens are concave surfaces; an object side surface and an image side surface of the fourth lens are concave surfaces; at least one surface in the object side surface and the image side surface of the fourth lens is an aspheric surface; an object side surface of the fifth lens is a convex surface, and an image side surface of the fifth lens is a concave surface; at least one inflection point is arranged on the image side surface of the fifth lens; the fifth lens is made of a plastic material; and the aperture is arranged between the shot object and the third lens. Due to the configuration mode of the lens group, the volume of the lenses can be effectively reduced, the sensitivity of an optical system is reduced, and higher image resolution can be acquired.

Description

Camera optical eyeglass group

Technical field

The present invention relates to a kind of camera optical eyeglass group, particularly relevant for a kind of miniaturization camera optical eyeglass group that is applied on the portable electronic product.

Background technology

Recent years, rise along with the portable electronic product with camera function, the demand of miniaturization phtographic lens day by day improves, and the photo-sensitive cell of general phtographic lens is nothing more than being sensitization coupling element (Charge Coupled Device, CCD) or CMOS element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two kind, and owing to progressing greatly of semiconductor process techniques, so that the Pixel Dimensions of photo-sensitive cell dwindles, the miniaturization phtographic lens is gradually toward the development of high pixel field, therefore, the requirement of image quality also increased day by day.

Tradition is equipped on the miniaturization phtographic lens on the portable electronic product, many employing four-piece type lens arrangements are main, such as United States Patent (USP) the 7th, 365, shown in No. 920, wherein first lens and the second lens are bonded to each other and become Doublet (doublet) with two sheet glass spherical mirrors, in order to color difference eliminating.But the method has its shortcoming, one, and too much glass spherical mirror configuration causes the total length of system to be difficult for shortening so that degree of freedom in system is not enough; Its two, the bonding technique of glass mirror is difficult for, and easily forms the difficulty on making.In addition, United States Patent (USP) the 7th, 643 has disclosed the optical lens that a kind of four separate lenses consist of for No. 225, includes a plurality of non-spherical lenses, can effectively shorten the total length of system, and obtain good image quality.

But because the high standard running gears such as intelligent mobile phone (Smart Phone) and PDA (Personal Digital Assistant) is in vogue, drive miniaturization phtographic lens riseing rapidly on pixel and image quality, existing four-piece type lens combination can't satisfy the more phtographic lens module of high-order, add electronic product constantly toward high-performance and lightening trend development, be equipped with the important target that high pixel, high performance miniaturization phtographic lens have just like become the development of high-order electronic product.

In view of this, be badly in need of a kind of being applicable on frivolous, the portable electronic product, image quality is good and be unlikely to the camera optical eyeglass group that makes the camera lens total length long.

Summary of the invention

The invention provides a kind of camera optical eyeglass group, 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, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool; The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of the 4th lens be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, the 5th lens as being provided with at least one point of inflexion on the side surface, and the 5th lens are plastic cement material; Wherein, this camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; The tool refracting power lens of the most close thing side are this first lens in this camera optical eyeglass group, and tool refracting power lens are no more than six in this camera optical eyeglass group; Wherein, these the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, 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 this sense electronics optical element 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 following relationship:

0.3＜R4/f＜30.0；

23.0＜V1-V2＜45.0；

0.65＜SL/TTL＜1.10。

On the other hand, the invention provides a kind of camera optical eyeglass group, 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, its thing side surface and be all 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; The 4th lens of the negative refracting power of one tool, its thing side surface be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, and the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in this camera optical eyeglass group; Wherein, these the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, this first lens and the spacing distance of these the second lens on optical axis are T12, this aperture to the distance of this sense electronics optical element 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, satisfies following relationship:

0.3＜R4/f＜30.0；

0.5＜(T12/f)*100＜15.0；

0.65＜SL/TTL＜1.10。

The present invention puts mode by above-mentioned mirror assembly, and effectively the susceptibility of contract lenses group volume, reduction optical system more can obtain higher resolving power.

In the camera optical eyeglass group of the present invention, the positive refracting power of this first lens tool provides system required part refracting power, helps to shorten the total length of this camera optical eyeglass group; This second lens tool is born refracting power, and the aberration that can be effectively this first lens of the positive refracting power of tool be produced is done revisal, and can be conducive to the aberration of update the system simultaneously; 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, can form one just with the 3rd lens, negative looking in the distance (Telephoto) structure, can effectively reduce the total length of this camera optical eyeglass group; The 5th lens can be positive refracting power or negative refracting power lens, its effect is as the revisal lens, but every aberration that balance and update the system produce, when the positive refracting power of the 5th lens tool, can effectively revise coma and also avoid simultaneously the excessive increase of other aberrations, when the negative refracting power of the 5th lens tool, then 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.

In the camera optical eyeglass group of the present invention, this first lens can be a biconvex lens or is that a thing side surface is convex surface and is 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 camera optical eyeglass group becomes shorter; When this first lens is the crescent lens of a convex-concave, then comparatively favourable for the astigmatism (Astigmatism) of update the system.The thing side surface of these the second lens and be all concave surface as side surface, Petzval and number (Petzval Sum) with effective update the system, make peripheral image planes become more flat, and can increase the back focal length of system, have enough back focal length can place other member to guarantee this camera optical eyeglass group.The 3rd lens can be a thing side surface to be concave surface and to be the crescent lens of convex surface as side surface, the 4th lens and the 5th lens can be the thing side surface to be convex surface and to be the crescent lens of concave surface as side surface, the effective astigmatism of update the system by this, image quality with elevator system, and the 3rd lens, the 4th lens and the 5th lens are crescent lens, the refracting power of these lens configures comparatively balance, can effectively reduce the susceptibility of system.

In the camera optical eyeglass group of the present invention, this aperture can place between object and this first lens or this first lens and this second lens between or between these second lens and the 3rd lens.Provide positive refracting power by this first lens, and when this aperture placed object side near this camera optical eyeglass group, can effectively shorten the optics total length of this camera optical eyeglass group.In addition, above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this camera optical eyeglass group 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, can be so that the sensitization susceptibility of sense electronics optical element improve, and the minimizing system produces the possibility at dark angle.In addition, can be provided with the point of inflexion on the 5th lens, can more effectively suppress from the light of axle visual field and be incident in angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.On the other hand, when this aperture being placed more near the 3rd lens place, the characteristic that can be conducive to Wide-angle, help to receive distorting (Distortion) and multiplying power look the correction of poor (ChromaticAberration of Magnification), and so configure the susceptibility that can effectively reduce system.Therefore, this aperture is arranged between object and the 3rd lens in the camera optical eyeglass group of the present invention, its objective is to want to average out in heart characteristic far away and Wide-angle, and further, preferably, this aperture is arranged between this first lens and this second lens.

Description of drawings

Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, does not consist of limitation of the invention.In the accompanying drawings:

Fig. 1 is the optical system 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 optical system 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 optical system 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 optical system 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 optical system 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 optical system schematic diagram of sixth embodiment of the invention;

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

Figure 13 is table one, is the optical data of the first embodiment;

Figure 14 A is table two A, is the aspherical surface data of the first embodiment;

Figure 14 B is table two B, is the aspherical surface data of the first embodiment;

Figure 15 is table three, is the optical data of the second embodiment;

Figure 16 A is table four A, is the aspherical surface data of the second embodiment;

Figure 16 B is table four B, is the aspherical surface data of the second embodiment;

Figure 17 is table five, is the optical data of the 3rd embodiment;

Figure 18 A is table six A, is the aspherical surface data of the 3rd embodiment;

Figure 18 B is table six B, is the aspherical surface data of the 3rd embodiment;

Figure 19 is table seven, is the optical data of the 4th embodiment;

Figure 20 is table eight, is the aspherical surface data of the 4th embodiment;

Figure 21 is table nine, is the optical data of the 5th embodiment;

Figure 22 is table ten, is the aspherical surface data of the 5th embodiment;

Figure 23 is table ten one, is the optical data of the 6th embodiment;

Figure 24 is table ten two, is the aspherical surface data of the 6th embodiment;

Figure 25 is table ten three, is the numeric data of the present invention's the first to the 6th embodiment correlationship formula.

Drawing reference numeral:

First lens 110,210,310,410,510,610

The thing side surface 111,211,311,411,511,611 of first lens

The picture side surface 112,212,312,412,512,612 of first lens

The second lens 120,220,320,420,520,620

The thing side surface 121,221,321,421,521,621 of the second lens

The picture side surface 122,222,322,422,522,622 of the second lens

The 3rd lens 130,230,330,430,530,630

The thing side surface 131,231,331,431,531,631 of the 3rd lens

The picture side surface 132,232,332,432,532,632 of the 3rd lens

The 4th lens 140,240,340,440,540,640

The thing side surface 141,241,341,441,541,641 of the 4th lens

The picture side surface 142,242,342,442,542,642 of the 4th lens

The 5th lens 150,250,350,450,550,650

The thing side surface 151,251,351,451,551,651 of the 5th lens

The picture side surface 152,252,352,452,552,652 of the 5th lens

Aperture 100,200,300,400,500,600

Infrared ray filtering optical filter 160,260,360,460,560,660

Imaging surface 170,270,370,470,570,670

The focal length of whole camera optical eyeglass group is f

The f-number of whole camera optical eyeglass group is Fno

Half of maximum visual angle is HFOV in the camera optical eyeglass group

The abbe number of first lens is V1

The abbe number of the second lens is V2

The abbe number of the 3rd lens is V3

The abbe number of the 4th lens is V4

The thickness of the second lens on optical axis is CT2

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

The focal length of first lens is f1

The focal length of the 3rd lens is f3

The focal length of the 5th lens is f5

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

Aperture to the distance of sense electronics optical element 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

For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.

The invention provides a kind of camera optical eyeglass group, 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, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool; The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of the 4th lens be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, the 5th lens as being provided with at least one point of inflexion on the side surface, and the 5th lens are plastic cement material; Wherein, this camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; The tool refracting power lens of the most close thing side are this first lens in this camera optical eyeglass group, and tool refracting power lens are no more than six in this camera optical eyeglass group; Wherein, these the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, 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 this sense electronics optical element 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 following relationship:

0.3＜R4/f＜30.0；

23.0＜V1-V2＜45.0；

0.65＜SL/TTL＜1.10。

When aforementioned videography optical lens sheet group satisfies following relationship: 0.3＜R4/f＜30.0, can effectively increase the back focal length of system, guarantee that this camera optical eyeglass group has enough back focal length can place other member; Further, be preferably and satisfy following relationship: 0.6＜R4/f＜2.0.When aforementioned videography optical lens sheet group satisfies following relationship: 23.0＜V1-V2＜45.0 are conducive to the correction of aberration in this camera optical eyeglass group; Further, be preferably and satisfy following relationship: 31.0＜V1-V2＜42.0.When aforementioned videography optical lens sheet group satisfies following relationship: 0.65＜SL/TTL＜1.10 are conducive to this camera optical eyeglass group and average out in heart characteristic far away and Wide-angle; Further, preferably, this aperture is arranged between this first lens and this second lens, and satisfies following relationship: 0.78＜SL/TTL＜0.93.

In the aforementioned camera optical eyeglass of the present invention group, preferably, the thing side surface of the 3rd lens is concave surface and is convex surface as side surface, is conducive to the astigmatism of update the system; Preferably, the 5th lens tool is born refracting power, 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, tool refracting power lens only are five in this camera optical eyeglass group, configure suitable lens number, can be conducive to system and obtain higher image quality, and be unlikely to make the camera lens total length oversize.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 0.80＜f/f1＜2.00, wherein the focal length of whole camera optical eyeglass group is f, the focal length of this first lens is f1, when this camera optical eyeglass group satisfies the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, the effective total length of control system, keep the characteristic of miniaturization, and can avoid simultaneously high-order spherical aberration (HighOrder Spherical Aberration) excessively to increase, and then promote image quality; Further, be preferably and satisfy following relationship: 1.32＜f/f1＜2.00.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 0.25＜f1/f3＜1.20, wherein the focal length of this first lens is f1, the focal length of the 3rd lens is f3, when this camera optical eyeglass group satisfies the above-mentioned relation formula, the refracting power of this first lens and the 3rd lens configures comparatively balance, is conducive to reduce the susceptibility and the generation that reduces aberration of system.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 0.3＜(CT2/f) * 10＜1.1, wherein the thickness of these the second lens on optical axis is CT2, the focal length of whole camera optical eyeglass group is f, when this camera optical eyeglass group satisfies the above-mentioned relation formula, the lens thickness size of these the second lens is comparatively suitable, can obtain good balance considering between eyeglass technique yields and the update the system aberration, and be conducive to mouldability and the homogenieity of plastic lens when ejection formation.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 0.5＜(T12/f) * 100＜9.5, wherein this first lens and the spacing distance of these the second lens on optical axis are T12, the focal length of whole camera optical eyeglass group is f, when this camera optical eyeglass group satisfies the above-mentioned relation formula, this first lens and the spacing distance of these the second lens on optical axis are comparatively suitable, can avoid the too short and difficulty that causes lens set to load onto of spacing distance, or spacing distance is long and affect the miniaturization of camera lens; Further, be preferably and satisfy following relationship: 0.5＜(T12/f) * 100＜5.5.

In the aforementioned camera optical eyeglass of the present invention group, preferably, it is to satisfy following relationship :-0.35＜f/f5＜0.35, wherein the focal length of whole camera optical eyeglass group is f, the focal length of the 5th lens is f5, and when this camera optical eyeglass group satisfies the above-mentioned relation formula, the effect of the 5th lens is as the revisal lens, be conducive to astigmatism and the distortion of update the system, improve the resolving power of this camera optical eyeglass group.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: TTL/ImgH＜1.95, wherein 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, when this camera optical eyeglass group satisfies the above-mentioned relation formula, be conducive to keep the characteristic of this camera optical eyeglass group miniaturization, be beneficial to be equipped on the frivolous portable electronic product.

On the other hand, the invention provides a kind of camera optical eyeglass group, 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, its thing side surface and be all 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; The 4th lens of the negative refracting power of one tool, its thing side surface be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, and the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in this camera optical eyeglass group; Wherein, these the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, this first lens and the spacing distance of these the second lens on optical axis are T12, this aperture to the distance of this sense electronics optical element 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, satisfies following relationship:

0.3＜R4/f＜30.0；

0.5＜(T12/f)*100＜15.0；

0.65＜SL/TTL＜1.10。

When aforementioned videography optical lens sheet group satisfies following relationship: 0.3＜R4/f＜30.0, can effectively increase the back focal length of system, guarantee that this camera optical eyeglass group has enough back focal length can place other member; Further, be preferably and satisfy following relationship: 0.5＜R4/f＜10.0.When aforementioned videography optical lens sheet group satisfies following relationship: 0.5＜(T12/f) * 100＜15.0, this first lens and the spacing distance of these the second lens on optical axis are comparatively suitable, can avoid the too short and difficulty that causes lens set to load onto of spacing distance, or spacing distance is long and affect the miniaturization of camera lens; Further, be preferably and satisfy following relationship: 0.5＜(T12/f) * 100＜9.5.When aforementioned videography optical lens sheet group satisfies following relationship: 0.65＜SL/TTL＜1.10 are conducive to this camera optical eyeglass group and average out in heart characteristic far away and Wide-angle; Further, preferably, this aperture is arranged between this first lens and this second lens, and satisfies following relationship: 0.78＜SL/TTL＜0.93.

In the aforementioned camera optical eyeglass of the present invention group, preferably, the thing side surface of the 4th lens is convex surface and is concave surface as side surface, is conducive to the astigmatism of update the system; Preferably, the 5th lens as being provided with at least one point of inflexion on the side surface, can effectively suppress from the light of axle visual field and be incident in angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field; Preferably, the 5th lens are plastic cement material, and the weight of lens set can be effectively lowered in the use of plastic cement material lens, more can effectively reduce production costs.

In the aforementioned camera optical eyeglass of the present invention group, preferably, satisfy following relationship: 31.0＜V1-V2＜42.0, wherein the abbe number of this first lens is V1, the abbe number of these the second lens is V2, when this camera optical eyeglass group satisfies the above-mentioned relation formula, be conducive to the correction of aberration in this camera optical eyeglass group.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 1.32＜f/f1＜2.00, wherein the focal length of whole camera optical eyeglass group is f, the focal length of this first lens is f1, when this camera optical eyeglass group satisfies the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, and the effective total length of control system is kept the characteristic of miniaturization, and can avoid simultaneously the high-order spherical aberration excessively to increase, and then promote image quality.

In the aforementioned camera optical eyeglass of the present invention group, preferably, it is to satisfy following relationship :-0.35＜f/f5＜0.35, wherein the focal length of whole camera optical eyeglass group is f, the focal length of the 5th lens is f5, and when this camera optical eyeglass group satisfies the above-mentioned relation formula, the effect of the 5th lens is as the revisal lens, be conducive to astigmatism and the distortion of update the system, improve the resolving power of this camera optical eyeglass group.

In the aforementioned camera optical eyeglass of the present invention group, preferably, to satisfy following relationship: 23.0＜V3-V4＜45.0, wherein the abbe number of the 3rd lens is V3, the abbe number of the 4th lens is V4, when this camera optical eyeglass group satisfies the above-mentioned relation formula, be conducive to the correction of aberration in this camera optical eyeglass group.

In camera optical eyeglass group 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, can aspheric surface be set at minute 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, therefore can effectively reduce the total length of camera optical eyeglass group of the present invention.

In camera optical eyeglass group of the present invention, if lens surface is convex surface, represent that then this lens surface is convex surface at paraxial place; If lens surface is concave surface, represent that then this lens surface is concave surface at paraxial place.

Camera optical eyeglass group of the present invention will cooperate accompanying drawing to be described in detail by following specific embodiment.

The first embodiment:

The optical system schematic diagram of first embodiment of the invention sees also Fig. 1, and the aberration curve of the first embodiment sees also Fig. 2.The camera optical eyeglass group of the first embodiment mainly is made of five 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 and be all convex surface as side surface 112, 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 and be all concave surface as side surface 122, 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 be that convex surface and picture side surface 142 are concave surface, and 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 5th lens 150 of the positive refracting power of one tool, its thing side surface 151 is that convex surface and picture side surface 152 are concave surface, its material is plastic cement, the thing side surface 151 of the 5th lens 150 and be all aspheric surface as side surface 152, and the 5th lens 150 as being provided with at least one point of inflexion on the side surface 152;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 100 and places between an object and this first lens 110;

Other includes an infrared ray filtering optical filter (IR-filter) 160 and places looking like between side surface 152 and the imaging surface 170 of the 5th lens 150, and this infrared ray filtering optical filter 160 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

$X\left(Y\right)=({\mathrm{<figure-callout\; id="2"\; label="Y"\; filenames="HSA00000133161000041.png,HSA00000133161000061.png"\; state="\{\{state\}\}">Y</figure-callout>}}^2/R)/(1+\mathrm{sqrt}(1-(1+k)*{(Y/R)}^2))+\underset{i}{\mathrm{\&Sigma;}}\left(\mathrm{Ai}\right)*\left(Y^i\right)$

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 camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=3.90 (millimeter).

In the first embodiment camera optical eyeglass group, the f-number (f-number) of whole camera optical eyeglass group is Fno, and its relational expression is: Fno=2.80.

In the first embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=36.0 (degree).

In the first embodiment camera optical eyeglass group, 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 camera optical eyeglass group, the abbe number of the 3rd lens 130 is V3, and the abbe number of the 4th lens 140 is V4, and its relational expression is:

V3-V4＝32.4。

In the first embodiment camera optical eyeglass group, the thickness of these the second lens 120 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝1.42。

In the first embodiment camera optical eyeglass group, these the second lens 120 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝5.79。

In the first embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 110 is f1, and its relational expression is:

f/f1＝1.14。

In the first embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 150 is f5, and its relational expression is:

f/f5＝0.05。

In the first embodiment camera optical eyeglass group, 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:

f1/f3＝0.78。

In the first embodiment camera optical eyeglass group, this first lens 110 is T12 with the spacing distance of these the second lens 120 on optical axis, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝7.77。

In the first embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 170 places for the object imaging thereon in addition, this aperture 100 to the distance of this sense electronics optical element 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＝1.02。

In the first embodiment camera optical eyeglass group, the thing side surface 111 of this first lens 110 to the distance of this sense electronics optical element on optical axis is TTL, and 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 13 table one, and its aspherical surface data is shown in Figure 14 table two A and table 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 second embodiment:

The optical system schematic diagram of second embodiment of the invention sees also Fig. 3, and the aberration curve of the second embodiment sees also Fig. 4.The camera optical eyeglass group of the second embodiment mainly is made of five pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 210 of the positive refracting power of one tool, its thing side surface 211 and be all convex surface as side surface 212, its material is plastic cement, the thing side surface 211 of this first lens 210 and be all aspheric surface as side surface 212;

The second lens 220 of the negative refracting power of one tool, its thing side surface 221 and be all concave surface as side surface 222, its material is plastic cement, the thing side surface 221 of these the second lens 220 and be all aspheric surface as side surface 222;

The 3rd lens 230 of the positive refracting power of one tool, its thing side surface 231 are that concave surface and picture side surface 232 are convex surface, and its material is plastic cement, the thing side surface 231 of the 3rd lens 230 and be all aspheric surface as side surface 232;

The 4th lens 240 of the negative refracting power of one tool, its thing side surface 241 be that convex surface and picture side surface 242 are concave surface, and its material is plastic cement, the thing side surface 241 of the 4th lens 240 and be all aspheric surface as side surface 242; And

The 5th lens 250 of the negative refracting power of one tool, its thing side surface 251 is that convex surface and picture side surface 252 are concave surface, its material is plastic cement, the thing side surface 251 of the 5th lens 250 and be all aspheric surface as side surface 252, and the 5th lens 250 as being provided with at least one point of inflexion on the side surface 252;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 200 and places between an object and this first lens 210;

Other includes an infrared ray filtering optical filter 260 and places looking like between side surface 252 and the imaging surface 270 of the 5th lens 250, and this infrared ray filtering optical filter 260 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

In the second embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=3.94 (millimeter).

In the second embodiment camera optical eyeglass group, the f-number of whole camera optical eyeglass group is Fno, and its relational expression is: Fno=2.80.

In the second embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=35.7 (degree).

In the second embodiment camera optical eyeglass group, the abbe number of this first lens 210 is V1, and the abbe number of these the second lens 220 is V2, and its relational expression is:

V1-V2＝32.5。

In the second embodiment camera optical eyeglass group, the abbe number of the 3rd lens 230 is V3, and the abbe number of the 4th lens 240 is V4, and its relational expression is:

V3-V4＝32.4。

In the second embodiment camera optical eyeglass group, the thickness of these the second lens 220 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝1.43。

In the second embodiment camera optical eyeglass group, these the second lens 220 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝5.97。

In the second embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 210 is f1, and its relational expression is:

f/f1＝1.16。

In the second embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 250 is f5, and its relational expression is:

f/f5＝-0.16。

In the second embodiment camera optical eyeglass group, the focal length of this first lens 210 is f1, and the focal length of the 3rd lens 230 is f3, and its relational expression is:

f1/f3＝0.84。

In the second embodiment camera optical eyeglass group, this first lens 210 is T12 with the spacing distance of these the second lens 220 on optical axis, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝7.46。

In the second embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 270 places for the object imaging thereon in addition, this aperture 200 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 211 of this first lens 210 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:

SL/TTL＝1.02。

In the second embodiment camera optical eyeglass group, the thing side surface 211 of this first lens 210 to the distance of this sense electronics optical element on optical axis is TTL, and 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 second embodiment is shown in Figure 15 table three, and its aspherical surface data is shown in Figure 16 table four A and 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:

The optical system schematic diagram of third embodiment of the invention sees also Fig. 5, and the aberration curve of the 3rd embodiment sees also Fig. 6.The camera optical eyeglass group of the 3rd embodiment mainly is made of five 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 and be all convex surface as side surface 312, 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 and be all concave surface as side surface 322, 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 be that convex surface and picture side surface 342 are concave surface, and 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 5th lens 350 of the negative refracting power of one tool, its thing side surface 351 is that convex surface and picture side surface 352 are concave surface, its material is plastic cement, the thing side surface 351 of the 5th lens 350 and be all aspheric surface as side surface 352, and the 5th lens 350 as being provided with at least one point of inflexion on the side surface 352;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 300 and places between this first lens 310 and this second lens 320;

Other includes an infrared ray filtering optical filter 360 and places looking like between side surface 352 and the imaging surface 370 of the 5th lens 350, and this infrared ray filtering optical filter 360 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

In the 3rd embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=4.23 (millimeter).

In the 3rd embodiment camera optical eyeglass group, the f-number of whole camera optical eyeglass group is Fno, and its relational expression is: Fno=2.78.

In the 3rd embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=33.8 (degree).

In the 3rd embodiment camera optical eyeglass group, 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 3rd embodiment camera optical eyeglass group, the abbe number of the 3rd lens 330 is V3, and the abbe number of the 4th lens 340 is V4, and its relational expression is:

V3-V4＝23.8。

In the 3rd embodiment camera optical eyeglass group, the thickness of these the second lens 320 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝0.80。

In the 3rd embodiment camera optical eyeglass group, these the second lens 320 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝1.15。

In the 3rd embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 310 is f1, and its relational expression is:

f/f1＝1.33。

In the 3rd embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 350 is f5, and its relational expression is:

f/f5＝-0.06。

In the 3rd embodiment camera optical eyeglass group, 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:

f1/f3＝0.65。

In the 3rd embodiment camera optical eyeglass group, 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 camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝3.66。

In the 3rd embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 370 places for the object imaging thereon in addition, this aperture 300 to the distance of this sense electronics optical element 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＝0.90。

In the 3rd embodiment camera optical eyeglass group, the thing side surface 311 of this first lens 310 to the distance of this sense electronics optical element on optical axis is TTL, and 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 3rd embodiment is shown in Figure 17 table five, and its aspherical surface data is shown in Figure 18 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:

The optical system schematic diagram of fourth embodiment of the invention sees also Fig. 7, and the aberration curve of the 4th embodiment sees also Fig. 8.The camera optical eyeglass group of the 4th embodiment mainly is made of five pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 410 of the positive refracting power of one tool, its thing side surface 411 and be all convex surface as side surface 412, its material is plastic cement, the thing side surface 411 of this first lens 410 and be all aspheric surface as side surface 412;

The second lens 420 of the negative refracting power of one tool, its thing side surface 421 and be all concave surface as side surface 422, its material is plastic cement, the thing side surface 421 of these the second lens 420 and be all aspheric surface as side surface 422;

The 3rd lens 430 of the positive refracting power of one tool, its thing side surface 431 are that concave surface and picture side surface 432 are convex surface, and its material is plastic cement, the thing side surface 431 of the 3rd lens 430 and be all aspheric surface as side surface 432;

The 4th lens 440 of the negative refracting power of one tool, its thing side surface 441 be that convex surface and picture side surface 442 are concave surface, and its material is plastic cement, the thing side surface 441 of the 4th lens 440 and be all aspheric surface as side surface 442; And

The 5th lens 450 of the positive refracting power of one tool, its thing side surface 451 is that convex surface and picture side surface 452 are concave surface, its material is plastic cement, the thing side surface 451 of the 5th lens 450 and be all aspheric surface as side surface 452, and the 5th lens 450 as being provided with at least one point of inflexion on the side surface 452;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 400 and places between an object and this first lens 410;

Other includes an infrared ray filtering optical filter 460 and places looking like between side surface 452 and the imaging surface 470 of the 5th lens 450, and this infrared ray filtering optical filter 460 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

In the 4th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=4.06 (millimeter).

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

In the 4th embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=35.0 (degree).

In the 4th embodiment camera optical eyeglass group, the abbe number of this first lens 410 is V1, and the abbe number of these the second lens 420 is V2, and its relational expression is:

V1-V2＝32.5。

In the 4th embodiment camera optical eyeglass group, the abbe number of the 3rd lens 430 is V3, and the abbe number of the 4th lens 440 is V4, and its relational expression is:

V3-V4＝-0.1。

In the 4th embodiment camera optical eyeglass group, the thickness of these the second lens 420 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝0.74。

In the 4th embodiment camera optical eyeglass group, these the second lens 420 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝0.97。

In the 4th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 410 is f1, and its relational expression is:

f/f1＝1.64。

In the 4th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 450 is f5, and its relational expression is:

f/f5＝0.21。

In the 4th embodiment camera optical eyeglass group, the focal length of this first lens 410 is f1, and the focal length of the 3rd lens 430 is f3, and its relational expression is:

f1/f3＝0.62。

In the 4th embodiment camera optical eyeglass group, this first lens 410 is T12 with the spacing distance of these the second lens 420 on optical axis, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝1.95。

In the 4th embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 470 places for the object imaging thereon in addition, this aperture 400 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 411 of this first lens 410 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:

SL/TTL＝0.99。

In the 4th embodiment camera optical eyeglass group, the thing side surface 411 of this first lens 410 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is:

TTL/ImgH＝1.72。

The detailed optical data of the 4th embodiment is shown in Figure 19 table seven, and its aspherical surface data is shown in Figure 20 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 5th embodiment:

The optical system schematic diagram of fifth embodiment of the invention sees also Fig. 9, and the aberration curve of the 5th embodiment sees also Figure 10.The camera optical eyeglass group of the 5th embodiment mainly is made of five 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 and be all convex surface as side surface 512, 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 and be all concave surface as side surface 522, 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 be that convex surface and picture side surface 542 are concave surface, and 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 5th lens 550 of the negative refracting power of one tool, its thing side surface 551 is that convex surface and picture side surface 552 are concave surface, its material is plastic cement, the thing side surface 551 of the 5th lens 550 and be all aspheric surface as side surface 552, and the 5th lens 550 as being provided with at least one point of inflexion on the side surface 552;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 500 and places between an object and this first lens 510;

Other includes an infrared ray filtering optical filter 560 and places looking like between side surface 552 and the imaging surface 570 of the 5th lens 550, and this infrared ray filtering optical filter 560 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

In the 5th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=4.06 (millimeter).

In the 5th embodiment camera optical eyeglass group, the f-number of whole camera optical eyeglass group is Fno, and its relational expression is: Fno=2.80.

In the 5th embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=35.0 (degree).

In the 5th embodiment camera optical eyeglass group, 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 5th embodiment camera optical eyeglass group, the abbe number of the 3rd lens 530 is V3, and the abbe number of the 4th lens 540 is V4, and its relational expression is:

V3-V4＝-0.1。

In the 5th embodiment camera optical eyeglass group, the thickness of these the second lens 520 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝0.74。

In the 5th embodiment camera optical eyeglass group, these the second lens 520 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝0.94。

In the 5th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 510 is f1, and its relational expression is:

f/f1＝1.75。

In the 5th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 550 is f5, and its relational expression is:

f/f5＝-0.52。

In the 5th embodiment camera optical eyeglass group, 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:

f1/f3＝0.32。

In the 5th embodiment camera optical eyeglass group, 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 camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝1.23。

In the 5th embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 570 places for the object imaging thereon in addition, this aperture 500 to the distance of this sense electronics optical element 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＝0.97。

In the 5th embodiment camera optical eyeglass group, the thing side surface 511 of this first lens 510 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is:

TTL/ImgH＝1.58。

The detailed optical data of the 5th embodiment is shown in Figure 21 table nine, and its aspherical surface data is shown in Figure 22 table ten, and wherein the unit of radius-of-curvature, thickness and focal length is millimeter (mm), and HFOV is defined as half of maximum visual angle.

The 6th embodiment:

The optical system schematic diagram of sixth embodiment of the invention sees also Figure 11, and the aberration curve of the 6th embodiment sees also Figure 12.The camera optical eyeglass group of the 6th embodiment mainly is made of five pieces of lens, is extremely sequentially comprised as side by the thing side:

The first lens 610 of the positive refracting power of one tool, its thing side surface 611 are that convex surface and picture side surface 612 are concave surface, and its material is plastic cement, the thing side surface 611 of this first lens 610 and be all aspheric surface as side surface 612;

The second lens 620 of the negative refracting power of one tool, its thing side surface 621 and be all concave surface as side surface 622, its material is plastic cement, the thing side surface 621 of these the second lens 620 and be all aspheric surface as side surface 622;

The 3rd lens 630 of the positive refracting power of one tool, its thing side surface 631 are that concave surface and picture side surface 632 are convex surface, and its material is plastic cement, the thing side surface 631 of the 3rd lens 630 and be all aspheric surface as side surface 632;

The 4th lens 640 of the negative refracting power of one tool, its thing side surface 641 be that convex surface and picture side surface 642 are concave surface, and its material is plastic cement, the thing side surface 641 of the 4th lens 640 and be all aspheric surface as side surface 642; And

The 5th lens 650 of the positive refracting power of one tool, its thing side surface 651 is that convex surface and picture side surface 652 are concave surface, its material is plastic cement, the thing side surface 651 of the 5th lens 650 and be all aspheric surface as side surface 652, and the 5th lens 650 as being provided with at least one point of inflexion on the side surface 652;

Wherein, this camera optical eyeglass group is provided with in addition an aperture 600 and places between this first lens 610 and this second lens 620;

Other includes an infrared ray filtering optical filter 660 and places looking like between side surface 652 and the imaging surface 670 of the 5th lens 650, and this infrared ray filtering optical filter 660 does not affect the focal length of the aforementioned camera optical eyeglass of the present invention group.

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

In the 6th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and its relational expression is: f=4.22 (millimeter).

In the 6th embodiment camera optical eyeglass group, the f-number of whole camera optical eyeglass group is Fno, and its relational expression is: Fno=2.78.

In the 6th embodiment camera optical eyeglass group, half of maximum visual angle is HFOV in this camera optical eyeglass group, and its relational expression is: HFOV=33.7 (degree).

In the 6th embodiment camera optical eyeglass group, the abbe number of this first lens 610 is V1, and the abbe number of these the second lens 620 is V2, and its relational expression is:

V1-V2＝32.5。

In the 6th embodiment camera optical eyeglass group, the abbe number of the 3rd lens 630 is V3, and the abbe number of the 4th lens 640 is V4, and its relational expression is:

V3-V4＝-0.1。

In the 6th embodiment camera optical eyeglass group, the thickness of these the second lens 620 on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(CT2/f)*10＝0.71。

In the 6th embodiment camera optical eyeglass group, these the second lens 620 be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, its relational expression is:

R4/f＝1.05。

In the 6th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of this first lens 610 is f1, and its relational expression is:

f/f1＝1.19。

In the 6th embodiment camera optical eyeglass group, the focal length of whole camera optical eyeglass group is f, and the focal length of the 5th lens 650 is f5, and its relational expression is:

f/f5＝0.12。

In the 6th embodiment camera optical eyeglass group, the focal length of this first lens 610 is f1, and the focal length of the 3rd lens 630 is f3, and its relational expression is:

f1/f3＝1.08。

In the 6th embodiment camera optical eyeglass group, this first lens 610 is T12 with the spacing distance of these the second lens 620 on optical axis, and the focal length of whole camera optical eyeglass group is f, and its relational expression is:

(T12/f)*100＝5.47。

In the 6th embodiment camera optical eyeglass group, this camera optical eyeglass group arranges a sense electronics optical element at these imaging surface 670 places for the object imaging thereon in addition, this aperture 600 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 611 of this first lens 610 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:

SL/TTL＝0.86。

In the 6th embodiment camera optical eyeglass group, the thing side surface 611 of this first lens 610 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is:

TTL/ImgH＝1.86。

The detailed optical data of the 6th embodiment is shown in Figure 23 table ten one, and its aspherical surface data is shown in Figure 24 table ten 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.

Table one to table ten two (corresponding Figure 13 to Figure 24) is depicted as the different numerical value change tables of camera optical eyeglass group embodiment of the present invention, yet 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 claim of the present invention.Table ten three (corresponding Figure 25) is the numeric data of the corresponding correlationship formula of the present invention of each embodiment.

Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (22)

1. a camera optical eyeglass group is characterized in that, described camera optical eyeglass group 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, its thing side surface and be all 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;

The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of described the 4th lens be aspheric surface as at least one surface in the side surface; And

One the 5th lens, its thing side surface are convex surface and are concave surface as side surface, described the 5th lens as being provided with at least one point of inflexion on the side surface, and described the 5th lens are plastic cement material;

Wherein, described camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and described aperture is arranged between object and described the 3rd lens; The tool refracting power lens of the most close thing side are described first lens in the described camera optical eyeglass group, and tool refracting power lens only are five in the described camera optical eyeglass group;

Wherein, described the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, the abbe number of described first lens is V1, the abbe number of described the second lens is V2, described aperture to the distance of described sense electronics optical element on optical axis is SL, and the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies following relationship:

0.3<R4/f<30.0；

23.0<V1-V2<45.0；

0.65<SL/TTL<1.10。

2. camera optical eyeglass group as claimed in claim 1 is characterized in that, the focal length of whole camera optical eyeglass group is f, and the focal length of described first lens is f1, satisfies following relationship:

0.80<f/f1<2.00。

3. camera optical eyeglass group as claimed in claim 2 is characterized in that, the focal length of whole camera optical eyeglass group is f, and the focal length of described first lens is f1, satisfies following relationship:

1.32<f/f1<2.00。

4. camera optical eyeglass group as claimed in claim 1 is characterized in that, the abbe number of described first lens is V1, and the abbe number of described the second lens is V2, satisfies following relationship:

31.0<V1-V2<42.0。

5. camera optical eyeglass group as claimed in claim 2 is characterized in that, the focal length of described first lens is f1, and the focal length of described the 3rd lens is f3, satisfies following relationship:

0.25<f1/f3<1.20。

6. camera optical eyeglass group as claimed in claim 2 is characterized in that, described the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.6<R4/f<2.0。

7. camera optical eyeglass group as claimed in claim 2, it is characterized in that, described aperture is arranged between described first lens and described the second lens, described aperture to the distance of described sense electronics optical element 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 following relationship:

0.78<SL/TTL<0.93。

8. camera optical eyeglass group as claimed in claim 7 is characterized in that, the thickness of described the second lens on optical axis is CT2, and the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.3<(CT2/f)*10<1.1。

9. camera optical eyeglass group as claimed in claim 5 is characterized in that, described first lens and the spacing distance of described the second lens on optical axis are T12, and the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.5<(T12/f)*100<9.5。

10. camera optical eyeglass group as claimed in claim 5 is characterized in that, the focal length of whole camera optical eyeglass group is f, and the focal length of described the 5th lens is f5, satisfies following relationship:

-0.35<f/f5<0.35。

11. camera optical eyeglass group as claimed in claim 2 is characterized in that, described the 5th lens tool is born refracting power.

12. camera optical eyeglass group as claimed in claim 1 is characterized in that, described first lens and the spacing distance of described the second lens on optical axis are T12, and the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.5<(T12/f)*100<5.5。

13. camera optical eyeglass group as claimed in claim 1, it is characterized in that, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, and half of described sense electronics optical element effective pixel area diagonal line length is ImgH, satisfies following relationship:

TTL/ImgH<1.95。

14. a camera optical eyeglass group is characterized in that, described camera optical eyeglass group 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, its thing side surface and be all 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;

The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and its thing side surface be aspheric surface as at least one surface in the side surface; And

One the 5th lens, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of described the 5th lens and be all aspheric surface as side surface;

Wherein, described camera optical eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, and described aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in the described camera optical eyeglass group;

Wherein, described the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, described first lens and the spacing distance of described the second lens on optical axis are T12, described aperture to the distance of described sense electronics optical element 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 following relationship:

0.3<R4/f<30.0；

0.5<(T12/f)*100<15.0；

0.65<SL/TTL<1.10。

15. camera optical eyeglass group as claimed in claim 14 is characterized in that, described the 5th lens as being provided with at least one point of inflexion on the side surface, and described the 5th lens are plastic cement material.

16. camera optical eyeglass group as claimed in claim 15 is characterized in that, described the second lens be R4 as the side surface radius-of-curvature, the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.5<R4/f<10.0。

17. camera optical eyeglass group as claimed in claim 16, it is characterized in that, described aperture is arranged between described first lens and described the second lens, described aperture to the distance of described sense electronics optical element 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 following relationship:

0.78<SL/TTL<0.93。

18. camera optical eyeglass group as claimed in claim 15 is characterized in that, described first lens and the spacing distance of described the second lens on optical axis are T12, and the focal length of whole camera optical eyeglass group is f, satisfies following relationship:

0.5<(T12/f)*100<9.5。

19. camera optical eyeglass group as claimed in claim 18 is characterized in that the abbe number of described first lens is V1, the abbe number of described the second lens is V2, satisfies following relationship:

31.0<V1-V2<42.0。

20. camera optical eyeglass group as claimed in claim 15 is characterized in that the focal length of whole camera optical eyeglass group is f, the focal length of described first lens is f1, satisfies following relationship:

1.32<f/f1<2.00。

21. camera optical eyeglass group as claimed in claim 20 is characterized in that the focal length of whole camera optical eyeglass group is f, the focal length of described the 5th lens is f5, satisfies following relationship:

-0.35<f/f5<0.35。

22. camera optical eyeglass group as claimed in claim 15 is characterized in that the abbe number of described the 3rd lens is V3, the abbe number of described the 4th lens is V4, satisfies following relationship:

23.0<V3-V4<45.0。

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