CN102466851A - Optical imaging lens - Google Patents

Abstract

The invention discloses an optical imaging lens. From an object side to an image side, the optical imaging lens successively comprises: a first lens possessing a positive inflectional force, a second lens possessing a negative inflectional force, a third lens possessing a negative inflectional force, wherein an object side surface of the first lens is a convex surface; the object side surface of the second lens is a concave surface; the image side surface of the third lens is the concave surface; at least one surface of the object side surface and the image side surface of the third lens is an aspheric surface. By using an above lens group configuration mode, a total length of the lens can be effectively reduced, a sensitivity of an optical system can be reduced, a large visual angle can be provided and a good imaging quality can be obtained.

Description

The optical imagery camera lens

Technical field

The present invention system is about a kind of optical imagery camera lens; Particularly have with great visual angle and the optical imagery camera lens of miniaturization about a kind of.

Background technology

In recent years, along with the rise of the portable electronic product with camera function, the demand of miniaturization pick-up lens day by day improved; And the photo-sensitive cell of general pick-up lens is nothing more than being sensitization coupling element (Charge Coupled Device; And progressing greatly CCD) or two kinds of complementary matal-oxide semiconductor elements (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor), along with the manufacture of semiconductor technology; Make the Pixel Dimensions of photo-sensitive cell dwindle; The miniaturization pick-up lens is the development toward high pixel field gradually, therefore, and to the also increase day by day of requirement of image quality.

The miniaturization pick-up lens of commonly seeing, for reducing manufacturing cost, it is main adopting with two pieces of formula lens arrangements more; Like United States Patent (USP) the 7th; Disclose a kind of pick-up lens of two pieces of formula lens arrangements 525, No. 741, yet because of only two pieces of lens of tool are limited in one's ability to the revisal of aberration; Can't satisfy the shooting module demand of higher-order, will cause the camera lens total length to be difficult to reach miniaturization but dispose poly-lens.In order to obtain good image quality and to keep the miniaturization of camera lens, the optical imagery camera lens that possesses three pieces of lens is feasible scheme.United States Patent (USP) the 7th; 436; No. 603 a kind of pick-up lens of three pieces of lens arrangements is provided, it to being first lens of the positive refracting power of a tool, second lens of the negative refracting power of a tool and the 3rd lens of the positive refracting power of a tool in regular turn as side, constitutes so-called Triplet pattern by the thing side.Lens pattern although it is so can be revised most aberration that this optical system produces; But its demand for the optics total length is bigger; Cause lens construction must cooperate the optics total length and increase, so that be difficult to satisfy pick-up lens more frivolous, miniaturization and use.In view of this, be badly in need of a kind of being applicable on frivolous, the portable electronic product, image quality is good, have with great visual angle and be unlikely to make the long optical imagery camera lens of camera lens total length.

Summary of the invention

The present invention provides a kind of optical imagery camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the positive refracting power of a tool, and its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface is a concave surface; And the 3rd lens of the negative refracting power of a tool, it is a concave 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; Wherein, this optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture system is arranged between these first lens and this second lens; The focal length of whole optics imaging lens is f; The focal length of these second lens is f2; The thickness of these first lens on optical axis is CT1, and the thickness of these second lens on optical axis is CT2, and the distance of this aperture to this sense electronics optical element on optical axis is SL; The distance of the thing side surface of these first lens to this sense electronics optical element on optical axis is TTL, is to satisfy following relationship formula :-0.22＜f/f2＜0.0; 0.30＜CT2/CT1＜0.95; And 0.65＜SL/TTL＜0.90.

On the other hand, the present invention provides a kind of optical imagery camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the positive refracting power of a tool, and its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; And one the 3rd lens, it is a concave surface as side surface, the thing side surface of the 3rd lens and be all aspheric surface as side surface, and the 3rd lens be provided with at least one point of inflexion as side surface; Wherein, this optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture system is arranged between object and this second lens; The focal length of whole optics imaging lens is f; The focal length of these first lens is f1; The thing side surface radius-of-curvature of these first lens is R1; These first lens be R2 as the side surface radius-of-curvature, with relative optical axis be the incident angle of 36 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side, the vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy following relationship formula: 0.65＜f1/f＜1.30;-1.00＜R1/R2＜0.65; And 0.45＜Yc1/ImgH＜0.95.

The present invention is by by above-mentioned mirror configuration set mode, can effectively dwindle the camera lens total length, reduce optical system susceptibility, provide with great visual angle, and obtain good image quality.

In the optical imagery camera lens of the present invention, the positive refracting power of this first lens tool is the refracting power that provides system main, helps to shorten the total length of optical imagery camera lens.This second lens tool is born refracting power, is that the aberration that helps first lens to the positive refracting power of tool to be produced is done revisal, and helps the aberration of update the system simultaneously.The 3rd lens can be the lens of the positive refracting power of tool, and the principal point (Principal Point) that can make optical system helps shortening the optics total length of system, to keep the miniaturization of camera lens away from imaging surface.

In the optical imagery camera lens of the present invention, these first lens can be a thing side surface to be convex surface and to be the crescent lens of concave surface or to be a biconvex lens as side surface; When the thing side surface of these first lens is a convex surface and when being concave surface as side surface, comparatively favourable for the astigmatism (Astigmatism) of update the system, help the image quality of elevator system; Be all convex surface when the thing side surface of these first lens and as side surface, can effectively strengthen the refracting power configuration of these first lens, and then make the optics total length of this optical imagery camera lens become shorter.The thing side surface of these second lens is a concave surface, and the suitable negative refracting power aberration to help update the system can be provided.These second lens can be convex surface as side surface, be comparatively favourable for the astigmatism of update the system, help the image quality of elevator system.The 3rd lens can be a thing side surface to be convex surface and to be the crescent lens of concave surface or to be a biconcave lens as side surface; When the thing side surface of the 3rd lens is a convex surface and when being concave surface as side surface, can help the astigmatism and the higher order aberratons of update the system; When the thing side surface of the 3rd lens is concave surface and is concave surface as side surface that the principal point that can make optical system helps shortening the optics total length of system further from imaging surface, to promote the miniaturization of camera lens.

In the optical imagery camera lens of the present invention, this aperture can place between object and this first lens or between these first lens and this second lens.By these first lens positive refracting power is provided, and aperture is placed the object side near this optical imagery camera lens, can effectively shorten the optics total length of this optical imagery camera lens; In addition; Above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this optical imagery camera lens away from imaging surface, and therefore, light will be incident on the mode near vertical incidence on the photo-sensitive cell; This is the heart far away (Telecentric) characteristic of picture side; And heart characteristic far away is very important for the photoperceptivity of solid-state electronic photo-sensitive cell, and with making the luminous sensitivity of sense electronics optical element improve, the minimizing system produces the possibility at dark angle.In addition, can on the 3rd lens, the point of inflexion be set, the light that more can suppress effectively from the axle visual field is incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.On the other hand; When aperture being placed more near this second lens place; The characteristic that can help Wide-angle; Help to receive the correction of poor (Chromatic Aberration of Magnification), and so dispose the susceptibility that can effectively reduce system distorting (Distortion) and multiplying power look.

Therefore, in the optical imagery camera lens of the present invention, if aperture is arranged between object and this second lens, purpose is to make this optical imagery camera lens in heart characteristic far away and Wide-angle, to obtain good balance; When aperture being placed between object and this first lens, be to focus on heart characteristic far away, the total length of whole optics imaging lens can be shorter; When aperture being placed between these first lens and this second lens, then focus on the characteristic of Wide-angle, and can effectively reduce the susceptibility of system.

Description of drawings

Figure 1A is the optical system synoptic diagram of first embodiment of the invention;

Figure 1B is the aberration curve figure of first embodiment of the invention;

Fig. 2 A is the optical system synoptic diagram of second embodiment of the invention;

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

Fig. 3 A is the optical system synoptic diagram of third embodiment of the invention;

Fig. 3 B is the aberration curve figure of third embodiment of the invention;

Fig. 4 A is the optical system synoptic diagram of fourth embodiment of the invention;

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

Fig. 5 A is the optical system synoptic diagram of fifth embodiment of the invention;

Fig. 5 B is the aberration curve figure of fifth embodiment of the invention;

Fig. 6 A is the optical system synoptic diagram of sixth embodiment of the invention;

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

Fig. 7 A is the optical system synoptic diagram of seventh embodiment of the invention;

Fig. 7 B is the aberration curve figure of seventh embodiment of the invention;

Fig. 8 is a table one, is the optical data of first embodiment of the invention;

Fig. 9 is a table two, is the aspherical surface data of first embodiment of the invention;

Figure 10 is a table three, is the optical data of second embodiment of the invention;

Figure 11 is a table four, is the aspherical surface data of second embodiment of the invention;

Figure 12 is a table five, is the optical data of third embodiment of the invention;

Figure 13 is a table six, is the aspherical surface data of third embodiment of the invention;

Figure 14 is a table seven, is the optical data of fourth embodiment of the invention;

Figure 15 is a table eight, is the aspherical surface data of fourth embodiment of the invention;

Figure 16 is a table nine, is the optical data of fifth embodiment of the invention;

Figure 17 is a table ten, is the aspherical surface data of fifth embodiment of the invention;

Figure 18 is a table ten one, is the optical data of sixth embodiment of the invention;

Figure 19 is a table ten two, is the aspherical surface data of sixth embodiment of the invention;

Figure 20 is a table ten three, is the optical data of seventh embodiment of the invention;

Figure 21 is a table ten four, is the aspherical surface data of seventh embodiment of the invention;

Figure 22 is a table ten five, is the numerical data of first embodiment of the invention to the seven embodiment correlationship formulas;

Figure 23 is the present invention's Yc1 synoptic diagram;

Figure 24 is the present invention's Yc2 synoptic diagram.

The main element symbol description:

Aperture 100,200,300,400,500,600,700

First lens 110,210,310,410,510,610,710

Thing side surface 111,211,311,411,511,611,711

Picture side surface 112,212,312,412,512,612,712

Second lens 120,220,320,420,520,620,720

Thing side surface 121,221,321,421,521,621,721

Picture side surface 122,222,322,422,522,622,722

The 3rd lens 130,230,330,430,530,630,730

Thing side surface 131,231,331,431,531,631,731

Picture side surface 132,232,332,432,532,632,732

Infrared ray filtering optical filter 140,240,340,440,540,640,740

Imaging surface 150,250,350,450,550,650,750

The focal length of whole optics imaging lens is f

The focal length of first lens is f1

The focal length of second lens is f2

The abbe number of first lens is V1

The abbe number of second lens is V2

The thickness of first lens on optical axis is CT1

The thickness of second lens on optical axis is CT2

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

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

With relative optical axis is the intersection point of the picture side surface of the incident angle of 36 degree and light that passes through the aperture center and the 3rd lens, and the vertical range of this intersection point and optical axis is Yc1

With relative optical axis is the intersection point of the picture side surface of the incident angle of 37 degree and light that passes through the aperture center and the 3rd lens, and the vertical range of this intersection point and optical axis is Yc2

The distance of aperture to sense electronics optical element on optical axis is SL

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

The half the of sense electronics optical element effective pixel area diagonal angle line length is ImgH

Embodiment

The present invention provides a kind of optical imagery camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the positive refracting power of a tool, and its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface is a concave surface; And the 3rd lens of the negative refracting power of a tool, it is a concave 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; Wherein, this optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture system is arranged between these first lens and this second lens; The focal length of whole optics imaging lens is f; The focal length of these second lens is f2; The thickness of these first lens on optical axis is CT1, and the thickness of these second lens on optical axis is CT2, and the distance of this aperture to this sense electronics optical element on optical axis is SL; The distance of the thing side surface of these first lens to this sense electronics optical element on optical axis is TTL, is to satisfy following relationship formula :-0.22＜f/f2＜0.0; 0.30＜CT2/CT1＜0.95; And 0.65＜SL/TTL＜0.90.

When aforementioned optical imagery camera lens satisfies following relationship formula :-0.22＜f/f2＜0.0, the refracting power of these second lens is comparatively suitable, can help to reduce the susceptibility of system, and can further revise higher order aberratons; Further, preferable system satisfies following relationship formula :-0.12＜f/f2＜0.0.When aforementioned optical imagery camera lens satisfies following relationship formula: 0.30＜CT2/CT1＜0.95; System makes in limited camera lens space; The configuration of each lens thickness is balance comparatively, and helps promoting the image quality of optical imagery camera lens and have concurrently and keep lightening characteristic; Further, preferable system satisfies following relationship formula: 0.50＜CT2/CT1＜0.87.When aforementioned optical imagery camera lens satisfies following relationship formula: 0.65＜SL/TTL＜0.90, help this optical imagery camera lens and in heart characteristic far away and Wide-angle, obtain good balance.

In the aforementioned optics imaging lens of the present invention; Preferably; The 3rd lens be provided with at least one point of inflexion as side surface, its light that will be more can suppress effectively from the axle visual field is incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field

In the aforementioned optics imaging lens of the present invention; Preferably, the thing side surface of the 3rd lens and be all aspheric surface as side surface, aspheric surface can be made into the shape beyond the sphere easily; Obtain more 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 lens; Preferably, the material of the 3rd lens is a plastic cement, and the weight of mirror group can be effectively lowered in the use of plastic cement material lens, more can effectively reduce production costs.

In the aforementioned optics imaging lens of the present invention, the focal length of whole optics imaging lens is f, and the focal length of these first lens is f1, preferably, is to satisfy following relationship formula: 0.65＜f1/f＜1.30.When f1/f satisfies the above-mentioned relation formula; The refracting power size configure of these first lens is balance comparatively; The effective total length of control system; Keep the characteristic of camera lens miniaturization, and can avoid high-order spherical aberration (High Order Spherical Aberration) excessively to increase simultaneously, and then promote image quality; Further, preferable system satisfies following relationship formula: 0.72＜f1/f＜1.10.

In the aforementioned optics imaging lens of the present invention, the abbe number of these first lens is V1, and the abbe number of these second lens is V2, preferably, is to satisfy following relationship formula: 28.5＜V1-V2＜42.0.When V1-V2 satisfies the above-mentioned relation formula, be the correction that helps aberration in this optical imagery camera lens.

In the aforementioned optics imaging lens of the present invention; With relative optical axis be the incident angle of 36 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, preferably, is to satisfy following relationship formula: 0.45＜Yc1/ImgH＜0.95.When Yc1/ImgH satisfies the above-mentioned relation formula, be to guarantee that this optical imagery camera lens has enough field angle, and help suppressing from an axle field rays and be incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.

In the aforementioned optics imaging lens of the present invention; With relative optical axis be the incident angle of 37 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side; The vertical range of this intersection point and optical axis is Yc2; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, preferably, is to satisfy following relationship formula: 0.55＜Yc2/ImgH＜0.95.When Yc2/ImgH satisfies the above-mentioned relation formula, be to guarantee that this optical imagery camera lens has bigger field angle, and help suppressing from an axle field rays and be incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.

In the aforementioned optics imaging lens of the present invention; The distance of the thing side surface of these first lens to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, preferably, is to satisfy following relationship formula: TTL/ImgH＜1.95.When TTL/ImgH satisfies the above-mentioned relation formula, be the miniaturization that helps keeping the optical imagery camera lens, to be equipped on the frivolous portable electronic product.

On the other hand, the present invention provides a kind of optical imagery camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the positive refracting power of a tool, and its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; And one the 3rd lens, it is a concave surface as side surface, the thing side surface of the 3rd lens and be all aspheric surface as side surface, and the 3rd lens be provided with at least one point of inflexion as side surface; Wherein, this optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture system is arranged between object and this second lens; The focal length of whole optics imaging lens is f; The focal length of these first lens is f1; The thing side surface radius-of-curvature of these first lens is R1; These first lens be R2 as the side surface radius-of-curvature, with relative optical axis be the incident angle of 36 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side, the vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy following relationship formula: 0.65＜f1/f＜1.30;-1.00＜R1/R2＜0.65; And 0.45＜Yc1/ImgH＜0.95.

When aforementioned optical imagery camera lens satisfies following relationship formula: 0.65＜f1/f＜1.30; The refracting power size configure of these first lens is balance comparatively, and the effective total length of control system is kept the characteristic of camera lens miniaturization; And can avoid the high-order spherical aberration excessively to increase simultaneously, and then promote image quality; Further, preferable system satisfies following relationship formula: 0.72＜f1/f＜1.10.When aforementioned optical imagery camera lens satisfies following relationship formula :-1.00＜R1/R2＜0.65, be the revisal that helps system's spherical aberration (Spherical Aberration).When aforementioned optical imagery camera lens satisfies following relationship formula: 0.45＜Yc1/ImgH＜0.95; Can guarantee that this optical imagery camera lens has enough field angle; And help suppressing from an axle field rays being incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.

In the aforementioned optics imaging lens of the present invention; The distance of this aperture to this sense electronics optical element on optical axis is SL; The distance of the thing side surface of these first lens to this sense electronics optical element on optical axis is TTL, preferably, is to satisfy following relationship formula: 0.60＜SL/TTL＜1.10.When SL/TTL satisfies the above-mentioned relation formula, help this optical imagery camera lens and in heart characteristic far away and Wide-angle, obtain good balance.

In the aforementioned optics imaging lens of the present invention, the abbe number of these first lens is V1, and the abbe number of these second lens is V2, preferably, is to satisfy following relationship formula: 28.5＜V1-V2＜42.0.When V1-V2 satisfies the above-mentioned relation formula, help the correction of aberration in this optical imagery camera lens.

In the aforementioned optics imaging lens of the present invention, the thickness of first lens on optical axis is CT1, and the thickness of these second lens on optical axis is CT2, preferably, is to satisfy following relationship formula: 0.50＜CT2/CT1＜0.87.When CT2/CT1 satisfies the above-mentioned relation formula, be to make that the configuration of each lens thickness is balance comparatively in limited camera lens space, and help promoting the image quality of optical imagery camera lens and have concurrently and keep lightening characteristic.

In the aforementioned optics imaging lens of the present invention; With relative optical axis be the incident angle of 37 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side; The vertical range of this intersection point and optical axis is Yc2; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, preferably, is to satisfy following relationship formula: 0.55＜Yc2/ImgH＜0.95.When Yc2/ImgH satisfies the above-mentioned relation formula, be to guarantee that this optical imagery camera lens has bigger field angle, and help suppressing from an axle field rays and be incident in the angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field.

In the aforementioned optics imaging lens of the present invention, the focal length of whole optics imaging lens is f, and the focal length of these second lens is f2, preferably, is to satisfy following relationship formula :-0.22＜f/f2＜0.0.When f/f2 satisfied the above-mentioned relation formula, the refracting power of these second lens was comparatively suitable, can help to reduce the susceptibility of system, and can further revise higher order aberratons.

In the aforementioned optics imaging lens of the present invention; The distance of the thing side surface of these first lens to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, preferably, is to satisfy following relationship formula: TTL/ImgH＜1.95.When TTL/ImgH satisfies the above-mentioned relation formula, be the miniaturization that helps keeping the optical imagery camera lens, to be equipped on the frivolous portable electronic product.

In the optical imagery camera lens of the present invention, the material of lens can be glass or plastic cement, if the material of lens is a glass, then can increase the degree of freedom of system's refracting power configuration, if the lens material is a plastic cement, then can effectively reduce production costs.In addition, and aspheric surface can be set on minute surface, aspheric surface can be made into the shape beyond the sphere easily; 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 optical imagery camera lens of the present invention.

In the optical imagery camera lens of the present invention, if lens surface system representes then that for convex surface this lens surface is a convex surface in paraxial place; If lens surface system representes then that for concave surface this lens surface is a concave surface in paraxial place.

In the optical imagery camera lens of the present invention; With relative optical axis be the incident angle of 36 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side; The vertical range of this intersection point and optical axis is Yc1; With relative optical axis be the incident angle of 37 degree and the light through this aperture center with this optical imagery camera lens near the intersection point that looks like side surface of the lens of picture side, the vertical range of this intersection point and optical axis is Yc2.Please refer to Figure 23 and Figure 24, further describe the distance and the relative position of Yc1 and Yc2 representative respectively.Figure 23 and Figure 24 are the optical system synoptic diagram of first embodiment of the invention.With relative optical axis is the intersection point 2301 of the picture side surface 132 of the incident angle of 36 degree and light that passes through aperture 100 centers and the 3rd lens 130; The vertical range of this intersection point and optical axis is Yc1; With relative optical axis is the intersection point 2401 of the picture side surface 132 of the incident angle of 37 degree and light that passes through aperture 100 centers and the 3rd lens 130, and the vertical range of this intersection point and optical axis is Yc2.

Optical imagery camera lens of the present invention will cooperate appended graphic the detailed description by following specific embodiment.

" first embodiment "

First embodiment of the invention sees also Figure 1A, and the aberration curve of first embodiment sees also Figure 1B.The optical imagery camera lens of first embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

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 a plastic cement;

Second lens 120 of the negative refracting power of one tool, its thing side surface 121 are that concave surface and picture side surface 122 are convex surface, and its material is a plastic cement; And

The 3rd lens 130 of the negative refracting power of one tool; Its thing side surface 131 is that convex surface and picture side surface 132 are concave surface; Its material is a plastic cement, the thing side surface 131 of the 3rd lens 130 and be all aspheric surface as side surface 132, and the 3rd lens 130 be provided with at least one point of inflexion as side surface 132;

Wherein, this optical imagery camera lens is provided with an aperture 100 in addition and places between these first lens 110 and this second lens 120;

This optical imagery camera lens includes an infrared ray filtering optical filter (IR-filter) 140 in addition and places looking like between a side surface 132 and the imaging surface 150 of the 3rd lens 130; The material of this infrared ray filtering optical filter 140 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

$X\left(Y\right)=({\mathrm{<figure-callout\; id="2"\; label="Y"\; filenames="HDA0000030662580000151.png,HDA0000030662580000161.png"\; state="\{\{state\}\}">Y</figure-callout>}}^2/R)/(1+\mathrm{sqrt}(1-(1+k)*{(Y/R)}^2))+\underset{i}{\mathrm{\&Sigma;}}\left(\mathrm{Ai}\right)*\left(Y^i\right)$

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 optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.71 (millimeter).

In the first embodiment optical imagery camera lens, the f-number of whole optics imaging lens (f-number) is Fno, and its relational expression is: Fno=2.07.

In the first embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=37.5 (degree).

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

In the first embodiment optical imagery camera lens, the thickness of these first lens 110 on optical axis is CT1, and the thickness of these second lens 120 on optical axis is CT2, and its relational expression is: CT2/CT1=0.71.

In the first embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 110 is R1, these first lens 110 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=-0.60.

In the first embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 110 is f1, and its relational expression is: f1/f=0.88.

In the first embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 120 is f2, and its relational expression is: f/f2=-0.01.

In the first embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 132 of the incident angle of 36 degree and light that passes through these aperture 100 centers and the 3rd lens 130; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc1/ImgH=0.65.

In the first embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 132 of the incident angle of 37 degree and light that passes through these aperture 100 centers and the 3rd lens 130; The vertical range of this intersection point and optical axis is Yc2; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc2/ImgH=0.69.

In the first embodiment optical imagery camera lens, the distance of this aperture 100 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 111 of these first lens 110 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.85.

In the first embodiment optical imagery camera lens; The distance of the thing side surface 111 of these first lens 110 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.83.

The detailed optical data of first embodiment is shown in Fig. 8 table one, and its aspherical surface data is shown in Fig. 9 table two, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" second embodiment "

Second embodiment of the invention sees also Fig. 2 A, and the aberration curve of second embodiment sees also Fig. 2 B.The optical imagery camera lens of second embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

First lens 210 of the positive refracting power of one tool, its thing side surface 211 are that convex surface and picture side surface 212 are concave surface, and its material is a plastic cement;

Second lens 220 of the negative refracting power of one tool, its thing side surface 221 are that concave surface and picture side surface 222 are convex surface, and its material is a plastic cement; And

The 3rd lens 230 of the negative refracting power of one tool; Its thing side surface 231 is that convex surface and picture side surface 232 are concave surface; Its material is a plastic cement, the thing side surface 231 of the 3rd lens 230 and be all aspheric surface as side surface 232, and the 3rd lens 230 be provided with at least one point of inflexion as side surface 232;

Wherein, this optical imagery camera lens is provided with an aperture 200 in addition and places between these first lens 210 and this second lens 220;

This optical imagery camera lens includes an infrared ray filtering optical filter 240 in addition and places looking like between a side surface 232 and the imaging surface 250 of the 3rd lens 230; The material of this infrared ray filtering optical filter 240 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the second embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.90 (millimeter).

In the second embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.40.

In the second embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=32.5 (degree).

In the second embodiment optical imagery camera lens, the abbe number of these first lens 210 is V1, and the abbe number of these second lens 220 is V2, and its relational expression is: V1-V2=32.5.

In the second embodiment optical imagery camera lens, the thickness of these first lens 210 on optical axis is CT1, and the thickness of these second lens 220 on optical axis is CT2, and its relational expression is: CT2/CT1=0.70.

In the second embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 210 is R1, these first lens 210 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.03.

In the second embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 210 is f1, and its relational expression is: f1/f=0.77.

In the second embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 220 is f2, and its relational expression is: f/f2=-0.28.

In the second embodiment optical imagery camera lens, the distance of this aperture 200 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 211 of these first lens 210 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.80.

In the second embodiment optical imagery camera lens; The distance of the thing side surface 211 of these first lens 210 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.90.

The detailed optical data of second embodiment is shown in Figure 10 table three, and its aspherical surface data is shown in Figure 11 table four, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" the 3rd embodiment "

Third embodiment of the invention sees also Fig. 3 A, and the aberration curve of the 3rd embodiment sees also Fig. 3 B.The optical imagery camera lens of the 3rd embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

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 a plastic cement;

Second lens 320 of the negative refracting power of one tool, its thing side surface 321 are that concave surface and picture side surface 322 are convex surface, and its material is a plastic cement; And

The 3rd lens 330 of the negative refracting power of one tool; Its thing side surface 331 is that convex surface and picture side surface 332 are concave surface; Its material is a plastic cement, the thing side surface 331 of the 3rd lens 330 and be all aspheric surface as side surface 332, and the 3rd lens 330 be provided with at least one point of inflexion as side surface 332;

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

This optical imagery camera lens includes an infrared ray filtering optical filter 340 in addition and places looking like between a side surface 332 and the imaging surface 350 of the 3rd lens 330; The material of this infrared ray filtering optical filter 340 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the 3rd embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.65 (millimeter).

In the 3rd embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.40.

In the 3rd embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=35.9 (degree).

In the 3rd embodiment optical imagery camera lens, the abbe number of these first lens 310 is V1, and the abbe number of these second lens 320 is V2, and its relational expression is: V1-V2=29.3.

In the 3rd embodiment optical imagery camera lens, the thickness of these first lens 310 on optical axis is CT1, and the thickness of these second lens 320 on optical axis is CT2, and its relational expression is: CT2/CT1=0.65.

In the 3rd embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 310 is R1, these first lens 310 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.00.

In the 3rd embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 310 is f1, and its relational expression is: f1/f=0.92.

In the 3rd embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 320 is f2, and its relational expression is: f/f2=-0.08.

In the 3rd embodiment optical imagery camera lens, the distance of this aperture 300 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 311 of these first lens 310 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.77.

In the 3rd embodiment optical imagery camera lens; The distance of the thing side surface 311 of these first lens 310 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.73.

The detailed optical data of the 3rd embodiment is shown in Figure 12 table five, and its aspherical surface data is shown in Figure 13 table six, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" the 4th embodiment "

Fourth embodiment of the invention sees also Fig. 4 A, and the aberration curve of the 4th embodiment sees also Fig. 4 B.The optical imagery camera lens of the 4th embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

First lens 410 of the positive refracting power of one tool, its thing side surface 411 are that convex surface and picture side surface 412 are concave surface, and its material is a plastic cement;

Second lens 420 of the negative refracting power of one tool, its thing side surface 421 are that concave surface and picture side surface 422 are convex surface, and its material is a plastic cement; And

The 3rd lens 430 of the negative refracting power of one tool; Its thing side surface 431 is that convex surface and picture side surface 432 are concave surface; Its material is a plastic cement, the thing side surface 431 of the 3rd lens 430 and be all aspheric surface as side surface 432, and the 3rd lens 430 be provided with at least one point of inflexion as side surface 432;

Wherein, this optical imagery camera lens is provided with an aperture 400 in addition and places between these first lens 410 and this second lens 420;

This optical imagery camera lens includes an infrared ray filtering optical filter 440 in addition and places looking like between a side surface 432 and the imaging surface 450 of the 3rd lens 430; The material of this infrared ray filtering optical filter 440 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the 4th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.65 (millimeter).

In the 4th embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.40.

In the 4th embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=36.0 (degree).

In the 4th embodiment optical imagery camera lens, the abbe number of these first lens 410 is V1, and the abbe number of these second lens 420 is V2, and its relational expression is: V1-V2=29.3.

In the 4th embodiment optical imagery camera lens, the thickness of these first lens 410 on optical axis is CT1, and the thickness of these second lens 420 on optical axis is CT2, and its relational expression is: CT2/CT1=0.65.

In the 4th embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 410 is R1, these first lens 410 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.07.

In the 4th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 410 is f1, and its relational expression is: f1/f=0.92.

In the 4th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 420 is f2, and its relational expression is: f/f2=-0.10.

In the 4th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 432 of the incident angle of 36 degree and light that passes through these aperture 400 centers and the 3rd lens 430; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc1/ImgH=0.70.

In the 4th embodiment optical imagery camera lens, the distance of this aperture 400 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 411 of these first lens 410 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.77.

In the 4th embodiment optical imagery camera lens; The distance of the thing side surface 411 of these first lens 410 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle 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 14 table seven, and its aspherical surface data is shown in Figure 15 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" the 5th embodiment "

Fifth embodiment of the invention sees also Fig. 5 A, and the aberration curve of the 5th embodiment sees also Fig. 5 B.The optical imagery camera lens of the 5th embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

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 concave surface, and its material is a plastic cement;

Second lens 520 of the negative refracting power of one tool, its thing side surface 521 are that concave surface and picture side surface 522 are convex surface, and its material is a plastic cement; And

The 3rd lens 530 of the positive refracting power of one tool; Its thing side surface 531 is that convex surface and picture side surface 532 are concave surface; Its material is a plastic cement, the thing side surface 531 of the 3rd lens 530 and be all aspheric surface as side surface 532, and the 3rd lens 530 be provided with at least one point of inflexion as side surface 532;

Wherein, this optical imagery camera lens is provided with an aperture 500 in addition and places between these first lens 510 and this second lens 520;

This optical imagery camera lens includes an infrared ray filtering optical filter 540 in addition and places looking like between a side surface 532 and the imaging surface 550 of the 3rd lens 530; The material of this infrared ray filtering optical filter 540 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the 5th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.65 (millimeter).

In the 5th embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.40.

In the 5th embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=36.0 (degree).

In the 5th embodiment optical imagery camera lens, the abbe number of these first lens 510 is V1, and the abbe number of these second lens 520 is V2, and its relational expression is: V1-V2=29.3.

In the 5th embodiment optical imagery camera lens, the thickness of these first lens 510 on optical axis is CT1, and the thickness of these second lens 520 on optical axis is CT2, and its relational expression is: CT2/CT1=0.65.

In the 5th embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 510 is R1, these first lens 510 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.08.

In the 5th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 510 is f1, and its relational expression is: f1/f=0.92.

In the 5th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 520 is f2, and its relational expression is: f/f2=-0.17.

In the 5th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 532 of the incident angle of 36 degree and light that passes through these aperture 500 centers and the 3rd lens 530; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc1/ImgH=0.71.

In the 5th embodiment optical imagery camera lens, the distance of this aperture 500 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 511 of these first lens 510 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.77.

In the 5th embodiment optical imagery camera lens; The distance of the thing side surface 511 of these first lens 510 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.73.

The detailed optical data of the 5th embodiment is shown in Figure 16 table nine, and its aspherical surface data is shown in Figure 17 table ten, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" the 6th embodiment "

Sixth embodiment of the invention sees also Fig. 6 A, and the aberration curve of the 6th embodiment sees also Fig. 6 B.The optical imagery camera lens of the 6th embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

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 a plastic cement;

Second lens 620 of the negative refracting power of one tool, its thing side surface 621 are that concave surface and picture side surface 622 are convex surface, and its material is a plastic cement; And

The 3rd lens 630 of the positive refracting power of one tool; Its thing side surface 631 is that convex surface and picture side surface 632 are concave surface; Its material is a plastic cement, the thing side surface 631 of the 3rd lens 630 and be all aspheric surface as side surface 632, and the 3rd lens 630 be provided with at least one point of inflexion as side surface 632;

Wherein, this optical imagery camera lens is provided with an aperture 600 in addition and places between object and this first lens 610;

This optical imagery camera lens includes an infrared ray filtering optical filter 640 in addition and places looking like between a side surface 632 and the imaging surface 650 of the 3rd lens 630; The material of this infrared ray filtering optical filter 640 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the 6th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.48 (millimeter).

In the 6th embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.46.

In the 6th embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=38.4 (degree).

In the 6th embodiment optical imagery camera lens, the abbe number of these first lens 610 is V1, and the abbe number of these second lens 620 is V2, and its relational expression is: V1-V2=32.1.

In the 6th embodiment optical imagery camera lens, the thickness of these first lens 610 on optical axis is CT1, and the thickness of these second lens 620 on optical axis is CT2, and its relational expression is: CT2/CT1=0.80.

In the 6th embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 610 is R1, these first lens 610 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.01.

In the 6th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 610 is f1, and its relational expression is: f1/f=0.89.

In the 6th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 620 is f2, and its relational expression is: f/f2=-0.39.

In the 6th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 632 of the incident angle of 36 degree and light that passes through these aperture 600 centers and the 3rd lens 630; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc1/ImgH=0.66.

In the 6th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 632 of the incident angle of 37 degree and light that passes through these aperture 600 centers and the 3rd lens 630; The vertical range of this intersection point and optical axis is Yc2; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc2/ImgH=0.69.

In the 6th embodiment optical imagery camera lens, the distance of this aperture 600 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 611 of these first lens 610 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.97.

In the 6th embodiment optical imagery camera lens; The distance of the thing side surface 611 of these first lens 610 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.54.

The detailed optical data of the 6th embodiment is shown in Figure 18 table ten one, and its aspherical surface data is shown in the 19 A chart 12 A and the 19 B chart 12 B, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

" the 7th embodiment "

Seventh embodiment of the invention sees also Fig. 7 A, and the aberration curve of the 7th embodiment sees also Fig. 7 B.The optical imagery camera lens of the 7th embodiment mainly is made up of three lens, is extremely comprised in regular turn as side by the thing side:

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 concave surface, and its material is a plastic cement;

Second lens 720 of the negative refracting power of one tool, its thing side surface 721 are that concave surface and picture side surface 722 are convex surface, and its material is a plastic cement; And

The 3rd lens 730 of the negative refracting power of one tool; Its thing side surface 731 is that convex surface and picture side surface 732 are concave surface; Its material is a plastic cement, the thing side surface 731 of the 3rd lens 730 and be all aspheric surface as side surface 732, and the 3rd lens 730 be provided with at least one point of inflexion as side surface 732;

Wherein, this optical imagery camera lens is provided with an aperture 700 in addition and places between object and this first lens 710;

This optical imagery camera lens includes an infrared ray filtering optical filter 740 in addition and places looking like between a side surface 732 and the imaging surface 750 of the 3rd lens 730; The material of this infrared ray filtering optical filter 740 is that glass and its do not influence the focal length of optical imagery camera lens of the present invention.

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

In the 7th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and its relational expression is: f=1.52 (millimeter).

In the 7th embodiment optical imagery camera lens, the f-number of whole optics imaging lens is Fno, and its relational expression is: Fno=2.40.

In the 7th embodiment optical imagery camera lens, the half the of maximum visual angle is HFOV in the whole optics imaging lens, and its relational expression is: HFOV=37.2 (degree).

In the 7th embodiment optical imagery camera lens, the abbe number of these first lens 710 is V1, and the abbe number of these second lens 720 is V2, and its relational expression is: V1-V2=34.5.

In the 7th embodiment optical imagery camera lens, the thickness of these first lens 710 on optical axis is CT1, and the thickness of these second lens 720 on optical axis is CT2, and its relational expression is: CT2/CT1=0.79.

In the 7th embodiment optical imagery camera lens, the thing side surface radius-of-curvature of these first lens 710 is R1, these first lens 710 be R2 as the side surface radius-of-curvature, its relational expression is: R1/R2=0.05.

In the 7th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these first lens 710 is f1, and its relational expression is: f1/f=0.84.

In the 7th embodiment optical imagery camera lens, the focal length of whole optics imaging lens is f, and the focal length of these second lens 720 is f2, and its relational expression is: f/f2=-0.21.

In the 7th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 732 of the incident angle of 36 degree and light that passes through these aperture 700 centers and the 3rd lens 730; The vertical range of this intersection point and optical axis is Yc1; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc1/ImgH=0.67.

In the 7th embodiment optical imagery camera lens; With relative optical axis is the intersection point of the picture side surface 732 of the incident angle of 37 degree and light that passes through these aperture 700 centers and the 3rd lens 730; The vertical range of this intersection point and optical axis is Yc2; The half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: Yc2/ImgH=0.70.

In the 7th embodiment optical imagery camera lens, the distance of this aperture 700 to this sense electronics optical element on optical axis is SL, and the distance of the thing side surface 711 of these first lens 710 to this sense electronics optical element on optical axis is TTL, and its relational expression is: SL/TTL=0.96.

In the 7th embodiment optical imagery camera lens; The distance of the thing side surface 711 of these first lens 710 to this sense electronics optical element on optical axis is TTL; And the half the of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is: TTL/ImgH=1.60.

The detailed optical data of the 7th embodiment is shown in Figure 20 table ten three, and its aspherical surface data is shown in Figure 21 table ten four, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half the of maximum visual angle.

Table one to table ten four (corresponding diagram 8 is to Figure 21 respectively) is depicted as the different numerical value change tables of optical imagery camera lens embodiment of the present invention; The all true gained of testing of numerical value change of right each embodiment of the present invention; Even use different numerical value; The product of same structure must belong to protection category of the present invention, so above explanation is described and be graphic only as exemplary, non-in order to limit claim of the present invention.Table ten five (corresponding Figure 22) is the numerical data of the corresponding correlationship formula of the present invention of each embodiment.

Claims (20)

1. an optical imagery camera lens is characterized in that, described lens are extremely comprised as side by the thing side in regular turn:

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

Second lens of the negative refracting power of one tool, its thing side surface is a concave surface; And

The 3rd lens of the negative refracting power of one tool, it is a concave 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;

Wherein, described optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and described aperture is to be arranged between described first lens and described second lens; The focal length of whole optics imaging lens is f; The focal length of described second lens is f2; The thickness of described first lens on optical axis is CT1, and the thickness of described second lens on optical axis is CT2, and 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, is to satisfy the following relationship formula:

-0.22＜f/f2＜0.0；

0.30＜CT2/CT1＜0.95; And

0.65＜SL/TTL＜0.90。

2. optical imagery camera lens as claimed in claim 1 is characterized in that, described the 3rd lens be provided with at least one point of inflexion as side surface.

3. optical imagery camera lens as claimed in claim 2 is characterized in that, described second lens be convex surface as side surface, the thing side surface of described the 3rd lens and be all aspheric surface, and the material of described the 3rd lens is a plastic cement as side surface.

4. optical imagery camera lens as claimed in claim 3 is characterized in that, the focal length of whole optics imaging lens is f, and the focal length of described first lens is f1, is to satisfy the following relationship formula:

0.65＜f1/f＜1.30。

5. optical imagery camera lens as claimed in claim 4 is characterized in that, the focal length of whole optics imaging lens is f, and the focal length of described first lens is f1,, be to satisfy the following relationship formula:

0.72＜f1/f＜1.10。

6. optical imagery camera lens as claimed in claim 4 is characterized in that, the abbe number of described first lens is V1, and the abbe number of described second lens is V2, is to satisfy the following relationship formula:

28.5＜V1-V2＜42.0。

7. optical imagery camera lens as claimed in claim 2 is characterized in that, the focal length of wherein whole optics imaging lens is f, and the focal length of described second lens is f2, is to satisfy the following relationship formula:

-0.12＜f/f2＜0.0。

8. optical imagery camera lens as claimed in claim 3 is characterized in that, the thickness of described first lens on optical axis is CT1, and the thickness of described second lens on optical axis is CT2, is to satisfy the following relationship formula:

0.50＜CT2/CT1＜0.87。

9. optical imagery camera lens as claimed in claim 2; It is characterized in that; Wherein with relative optical axis be the incident angle of 36 degree and the light through described aperture center with described optical imagery camera lens near the intersection point that looks like side surface of the lens that look like side; The vertical range of described intersection point and optical axis is Yc1, and the half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

0.45＜Yc1/ImgH＜0.95。

10. optical imagery camera lens as claimed in claim 1; It is characterized in that; Wherein with relative optical axis be the incident angle of 37 degree and the light through described aperture center with described optical imagery camera lens near the intersection point that looks like side surface of the lens that look like side; The vertical range of described intersection point and optical axis is Yc2, and the half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

0.55＜Yc2/ImgH＜0.95。

11. optical imagery camera lens as claimed in claim 4 is characterized in that, described first lens be convex surface as side surface.

12. optical imagery camera lens as claimed in claim 3; 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 the half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

TTL/ImgH＜1.95。

13. an optical imagery camera lens is characterized in that, described lens are extremely comprised as side by the thing side in regular turn:

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

Second lens of the negative refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; And

One the 3rd lens, it is a concave surface as side surface, the thing side surface of described the 3rd lens and be all aspheric surface as side surface, and described the 3rd lens be provided with at least one point of inflexion as side surface;

Wherein, described optical imagery camera lens is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and described aperture is to be arranged between object and described second lens; The focal length of whole optics imaging lens is f; The focal length of described first lens is f1; The thing side surface radius-of-curvature of described first lens is R1; Described first lens be R2 as the side surface radius-of-curvature, with relative optical axis be the incident angle of 36 degree and the light through described aperture center with described optical imagery camera lens near the intersection point that looks like side surface of the lens that look like side, the vertical range of described intersection point and optical axis is Yc1; The half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

0.65＜f1/f＜1.30；

-1.00＜R1/R2＜0.65; And

0.45＜Yc1/ImgH＜0.95。

14. optical imagery camera lens as claimed in claim 13; It is characterized in that; 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, is to satisfy the following relationship formula:

0.60＜SL/TTL＜1.10。

15. optical imagery camera lens as claimed in claim 14 is characterized in that, the focal length of whole optics imaging lens is f, and the focal length of described first lens is f1, is to satisfy the following relationship formula:

0.72＜f1/f＜1.10。

16. optical imagery camera lens as claimed in claim 14 is characterized in that, the abbe number of described first lens is V1, and the abbe number of described second lens is V2, is to satisfy the following relationship formula:

28.5＜V1-V2＜42.0。

17. optical imagery camera lens as claimed in claim 16 is characterized in that, the thickness of described first lens on optical axis is CT1, and the thickness of described second lens on optical axis is CT2, is to satisfy the following relationship formula:

0.50＜CT2/CT1＜0.87。

18. optical imagery camera lens as claimed in claim 13; It is characterized in that; Wherein with relative optical axis be the incident angle of 37 degree and the light through described aperture center with described optical imagery camera lens near the intersection point that looks like side surface of the lens that look like side; The vertical range of described intersection point and optical axis is Yc2, and the half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

0.55＜Yc2/ImgH＜0.95。

19. optical imagery camera lens as claimed in claim 13 is characterized in that, the focal length of wherein whole optics imaging lens is f, and the focal length of described second lens is f2, is to satisfy the following relationship formula:

-0.22＜f/f2＜0.0。

20. optical imagery camera lens as claimed in claim 13; 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 the half the of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, is to satisfy the following relationship formula:

TTL/ImgH＜1.95。

Images