CN102213816B - Optical photographic lens - Google Patents
Optical photographic lens Download PDFInfo
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- CN102213816B CN102213816B CN 201010157606 CN201010157606A CN102213816B CN 102213816 B CN102213816 B CN 102213816B CN 201010157606 CN201010157606 CN 201010157606 CN 201010157606 A CN201010157606 A CN 201010157606A CN 102213816 B CN102213816 B CN 102213816B
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Abstract
The invention discloses an optical photographic lens. The optical photographic lens comprises a first lens with negative refraction power, a second lens with positive refraction power, a third lens with positive refraction power, a fourth lens with negative refraction power, and a fifth lens with positive refraction power from an object side to an image side, wherein the surface of the image side of the first lens is a concave surface; the surface of the object side of the second lens is a concave surface and the surface of the image side of the second lens is a convex surface; the surface of the object side of the third lens is a concave surface and the surface of the image side of the third lens is a convex surface; the optical photographic lens is also provided with a diaphragm which is arranged between the second lens and the third lens; and a distance between the fourth lens and the fifth lens on the optical axis is T45, the focal length of the whole optical photographic lens is f and the number of lenses with the refraction power in the optical photographic lens is N, so the coefficients are accordance with the following expression: T45/f*10 is more than 0.10 and less than 6.00 and N is more than or equal to 5 and less than or equal to 6. The optical photographic lens provided by the embodiment of the invention has a wide vision angle and high imaging quality; and the sensitivity of the system can be reduced and the total length of the lens can be shortened.
Description
Technical field
The present invention relates to a kind of optical photography camera lens, relate in particular to a kind of miniaturization optical photography camera lens with Wide-angle.
Background technology
Recent years, the range of application of optical photography camera lens more and more widely, particularly in mobile phone camera, computer network video-unit, automobile-used camera lens and image security monitoring etc.; 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, CMOSSensor) two kinds, and because the semiconductor fabrication process development of technology; Make the elemental area of photo-sensitive cell dwindle; Phtographic lens develops toward high pixel and miniaturization field gradually, therefore, and to the also increase day by day of requirement of image quality.
Existing phtographic lens is with great visual angle adopted the pre-group lens mostly for negative refracting power, back crowd's lens are the configuration mode of positive refracting power, constitutes so-called anti-photography type (Inverse Telephoto) structure; Obtain the characteristic of Wide-angle by this; Like United States Patent (USP) the 7th, 446, shown in No. 955; For adopting the four-piece type lens arrangement of the negative refracting power of pre-group, the positive refracting power of back crowd; Form even so can obtain bigger field angle, but because the back crowd only disposes one piece of lens, is difficult to system aberration is done good revisal; Add that market constantly increases for high resolution and demand with phtographic lens of Wide-angle, therefore be badly in need of a kind of possess Wide-angle and high image quality are arranged and are unlikely to the optical photography camera lens that makes the camera lens total length long.
Summary of the invention
The present invention provides a kind of optical photography camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the negative refracting power of a tool, and it is a concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And the 5th lens of the positive refracting power of a tool; Wherein, this optical photography camera lens is provided with an aperture in addition, and this aperture is arranged between these second lens and the 3rd lens; At least two pieces of lens in the 3rd lens, the 4th lens and the 5th lens, its thing side surface be aspheric surface as at least one surface in the side surface; The 4th lens and the distance of the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f, and the number of lenses of tool refracting power is N in this optical photography camera lens, satisfies the following relationship formula:
0.10<(T45/f)*10<6.00;
5≤N≤6。
On the other hand, the present invention provides a kind of optical photography camera lens, comprises the lens of five pieces of tool refracting powers, by the thing side to being in regular turn as side: first lens of the negative refracting power of a tool, its thing side surface are convex surface and are concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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 and be all aspheric surface as side surface; And the 5th lens of the positive refracting power of a tool, its thing side surface and be all aspheric surface as side surface; Wherein, These second lens and the distance of the 3rd lens on optical axis are T23, and the 4th lens and the distance of the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f; The thing side surface radius-of-curvature of the 3rd lens is R5; The 3rd lens be R6 as the side surface radius-of-curvature, the focal length of the 3rd lens is f3, satisfies the following relationship formula:
0.00<T23/f<1.50;
0.10<(T45/f)*10<6.00;
1.25<|R5/R6|;
0.50<f/f3<1.40。
Again on the other hand, the present invention provides a kind of optical photography camera lens, comprises the lens of five pieces of tool refracting powers, by the thing side extremely as side is in regular turn: first lens of the negative refracting power of a tool, and it is a concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And the 5th lens of the positive refracting power of a tool; Wherein, the 3rd lens, the 4th lens and the 5th lens are all crescent lens.
The present invention can effectively enlarge the field angle of this optical photography camera lens through above-mentioned mirror configuration set mode, reduces the susceptibility of system, and effectively shortens the total length of camera lens.
In the optical photography camera lens of the present invention, this first lens tool is born refracting power, and it is a concave surface as side surface, can help to enlarge the field angle of this optical photography camera lens.The positive refracting power of this second lens tool, its thing side surface be concave surface and be convex surface as side surface, can help the aberration that these first lens for the negative refracting power of tool are produced and do revisal.The positive refracting power of the 3rd lens tool provides system main refracting power, can help shortening the total length of lens combination of the present invention.The 4th lens tool is born refracting power, can help revising the aberration (Chromatic Aberration) of this optical photography camera lens.The positive refracting power of the 5th lens tool helps to distribute the refracting power of the 3rd lens, can help reducing the susceptibility of system.
In the optical photography camera lens of the present invention; When the thing side surface of these first lens is a convex surface and when being concave surface as side surface; Help to enlarge the field angle of this optical photography camera lens; And the refraction for incident ray comparatively relaxes, and can avoid aberration excessively to increase, and therefore helps enlarging system's field angle and revising in the aberration and obtain good balance; When the thing side surface of the 3rd lens is a concave surface and when being convex surface as side surface,, can help revising the astigmatism (Astigmatism) of this optical photography camera lens when the thing side surface of the 4th lens is a convex surface and when being concave surface as side surface; And when the 3rd lens, the 4th lens and the 5th lens are all crescent lens, more can effectively reduce the susceptibility of system and can avoid the excessive increase of higher order aberratons, to promote the image quality of this optical photography camera lens.
In the optical photography camera lens of the present invention, this aperture can place between these second lens and the 3rd lens.In wide-angle optics, need do correction to distorting (Distortion) and multiplying power look receipts poor (ChromaticAberration of Magnification) especially, its method is for to place system light flexion equilibrium of forces place with aperture.Therefore optical photography camera lens of the present invention is if be arranged at aperture between these second lens and the 3rd lens; Obtain well balanced in the total length that its purpose is to shorten camera lens and the characteristic that possesses Wide-angle, and so configuration mode can help to reduce the susceptibility of system.
The optics pick-up lens that the embodiment of the invention provides has Wide-angle and high image quality, and can reduce the susceptibility and the total length that shortens camera lens of system.
Description of drawings
Fig. 1 is the optical system synoptic 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 synoptic 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 synoptic 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 synoptic 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 synoptic 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 synoptic diagram of sixth embodiment of the invention;
Figure 12 is the aberration curve figure of sixth embodiment of the invention;
Figure 13 is the optical system synoptic diagram of seventh embodiment of the invention;
Figure 14 is the aberration curve figure of seventh embodiment of the invention;
Figure 15 is a table one, is the optical data of first embodiment of the invention;
Figure 16 is a table two, is the aspherical surface data of first embodiment of the invention;
Figure 17 is a table three, is the optical data of second embodiment of the invention;
Figure 18 is a table four, is the aspherical surface data of second embodiment of the invention;
Figure 19 is a table five, is the optical data of third embodiment of the invention;
Figure 20 is a table six, is the aspherical surface data of third embodiment of the invention;
Figure 21 is a table seven, is the optical data of fourth embodiment of the invention;
Figure 22 is a table eight, is the aspherical surface data of fourth embodiment of the invention;
Figure 23 is a table nine, is the optical data of fifth embodiment of the invention;
Figure 24 is a table ten, is the aspherical surface data of fifth embodiment of the invention;
Figure 25 is a table ten one, is the optical data of sixth embodiment of the invention;
Figure 26 is a table ten two, is the aspherical surface data of sixth embodiment of the invention;
Figure 27 is a table ten three, is the optical data of seventh embodiment of the invention;
Figure 28 is a table ten four, is the aspherical surface data of seventh embodiment of the invention;
Figure 29 is a table ten five, is the numeric data of first embodiment of the invention to the seven embodiment correlationship formulas.
Drawing reference numeral:
Aperture 100,300,500,700,900,1100,1300
First lens 110,310,510,710,910,1110,1310
Thing side surface 111,311,511,711,911,1111,1311
Picture side surface 112,312,512,712,912,1112,1312
Second lens 120,320,520,720,920,1120,1320
Thing side surface 121,321,521,721,921,1121,1321
Picture side surface 122,322,522,722,922,1122,1322
The 3rd lens 130,330,530,730,930,1130,1330
Thing side surface 131,331,531,731,931,1131,1331
Picture side surface 132,332,532,732,932,1132,1332
The 4th lens 140,340,540,740,940,1140,1340
Thing side surface 141,341,541,741,941,1141,1341
Picture side surface 142,342,542,742,942,1142,1342
The 5th lens 150,350,550,750,950,1150,1350
Thing side surface 151,351,551,751,951,1151,1351
Picture side surface 152,352,552,752,952,1152,1352
Infrared ray filtering optical filter 160,360,560,760,960,1160,1360
Cover glass 170,370,570,770,970,1170,1370
Imaging surface 180,380,580,780,980,1180,1380
The focal length of whole optics phtographic lens is f
The focal length of first lens is f1
The focal length of the 3rd lens is f3
The focal length of the 4th lens is f4
The focal length of the 5th lens is f5
The synthetic focal length of first lens and second lens is f12
The abbe number of the 3rd lens is V3
The abbe number of the 4th lens is V4
The thing side surface radius-of-curvature of second lens is R3
Second lens be R4 as the side surface radius-of-curvature
The thing side surface radius-of-curvature of the 3rd lens is R5
The 3rd lens be R6 as the side surface radius-of-curvature
Second lens and the distance of the 3rd lens on optical axis are T23
The 4th lens and the distance of the 5th lens on optical axis are T45
The half the of maximum visual angle is HFOV in the optical photography camera lens
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
For making the object of the invention, technical scheme and advantage clearer, the embodiment of the invention is explained further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as to qualification of the present invention.
The present invention provides a kind of optical photography camera lens, is extremely comprised in regular turn as side by the thing side: first lens of the negative refracting power of a tool, and it is a concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And the 5th lens of the positive refracting power of a tool; Wherein, this optical photography camera lens is provided with an aperture in addition, and this aperture is arranged between these second lens and the 3rd lens; At least two pieces of lens in the 3rd lens, the 4th lens and the 5th lens, its thing side surface be aspheric surface as at least one surface in the side surface; The 4th lens and the distance of the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f, and the number of lenses of tool refracting power is N in this optical photography camera lens, satisfies the following relationship formula:
0.10<(T45/f)*10<6.00;
5≤N≤6。
When aforementioned optical photography camera lens satisfies the following relationship formula: 0.10<(T45/f) * 10<6.00 can help revising the higher order aberratons of this optical photography camera lens, with the image quality of elevator system; Further, be preferably and satisfy the following relationship formula: 0.70<(T45/f) * 10<3.00.When aforementioned optical photography camera lens satisfies following relationship formula: 5≤N≤6, can help in reducing camera lens total length and update the system aberration, obtaining balance preferably, and can effectively control production cost; Further, be preferably and satisfy following relationship formula: N=5.
In the aforementioned optics phtographic lens of the present invention, preferably, the thing side surface of these first lens is a convex surface, helps to enlarge the field angle of this optical photography camera lens, and comparatively relaxes for the refraction of incident ray, can avoid the excessive increase of aberration; Preferably, the thing side surface of the 4th lens is convex surface and is concave surface as side surface, to help the astigmatism of update the system.
In the aforementioned optics phtographic lens of the present invention, preferably, the thing side surface of the 5th 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, and the image quality of ability elevator system; Preferably, the material of the 4th lens is a plastic cement, and the material of the 5th lens is a plastic cement, and the plastic cement material lens not only help the making of non-spherical lens, more can effectively reduce production costs.
In the aforementioned optics phtographic lens of the present invention, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens is f3, preferably, is to satisfy following relationship formula: 0.50<f/f3<1.40.When f/f3 satisfies the above-mentioned relation formula; The refracting power size configure of the 3rd lens is balance comparatively; The effective optics total length of control system, and can avoid the excessive increase of high-order spherical aberration (High Order Spherical Aberration) simultaneously, with the elevator system image quality; Further, be preferably and satisfy following relationship formula: 0.65<f/f3<1.00.
In the aforementioned optics phtographic lens of the present invention, the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, preferably, is to satisfy following relationship formula :-1.0<f4/f5<-0.4.When f4/f5 satisfies the above-mentioned relation formula, can make the refracting power of back crowd's lens combination dispose comparatively balance, help the reduction of system sensitivity and the revisal of higher order aberratons.
In the aforementioned optics phtographic lens of the present invention; Other is provided with a sense electronics optical element and supplies the object imaging; 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, satisfies following relationship formula: 0.30<SL/TTL<0.55.When SL/TTL satisfies the above-mentioned relation formula, can be beneficial to and guarantee that lens combination of the present invention averages out on heart characteristic far away and wide-angle characteristic.Moreover in the aforementioned optics phtographic lens of the present invention, 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<6.0.When TTL/ImgH satisfies the above-mentioned relation formula, help keeping the miniaturization of this optical photography camera lens.
In the aforementioned optics phtographic lens of the present invention, the thing side surface radius-of-curvature of the 3rd lens is R5, the 3rd lens be R6 as the side surface radius-of-curvature, preferably, be to satisfy the following relationship formula: 1.25<| R5/R6|.When | when R5/R6| satisfies the above-mentioned relation formula, can help revising the spherical aberration of this optical photography camera lens.
In the aforementioned optics phtographic lens of the present invention, the focal length of whole optics phtographic lens is f, and the focal length of these first lens is f1, preferably, is to satisfy following relationship formula :-0.40<f/f1<-0.25.When f/f1 satisfies the above-mentioned relation formula, can help in the optics total length of field angle that enlarges this optical photography camera lens and shortening system, averaging out.
In the aforementioned optics phtographic lens of the present invention, the focal length of whole optics phtographic lens is f, and the synthetic focal length of these first lens and these second lens is f12, preferably, is to satisfy following relationship formula: 0.08<f/f12<0.30.When f/f12 satisfies the above-mentioned relation formula, can help to reduce the susceptibility of system, promote image quality.
In the aforementioned optics phtographic lens of the present invention, the thing side surface radius-of-curvature of these second lens is R3, these second lens be R4 as the side surface radius-of-curvature, preferably, be to satisfy following relationship formula: 1.2<R3/R4<4.5.When R3/R4 satisfies the above-mentioned relation formula, can help the aberration that these first lens produce is done revisal, with the image quality of elevator system.
In the aforementioned optics phtographic lens of the present invention, the abbe number of the 3rd lens (Abbe Number) is V3, and the abbe number of the 4th lens is V4, preferably, is to satisfy following relationship formula: 23.0<V3-V4<38.0.When V3-V4 satisfies the above-mentioned relation formula, help to promote the ability of this optical photography camera lens correction aberration.
On the other hand, the present invention provides a kind of optical photography camera lens, comprises the lens of five pieces of tool refracting powers, by the thing side to being in regular turn as side: first lens of the negative refracting power of a tool, its thing side surface are convex surface and are concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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 and be all aspheric surface as side surface; And the 5th lens of the positive refracting power of a tool, its thing side surface and be all aspheric surface as side surface; Wherein, These second lens and the distance of the 3rd lens on optical axis are T23, and the 4th lens and the distance of the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f; The thing side surface radius-of-curvature of the 3rd lens is R5; The 3rd lens be R6 as the side surface radius-of-curvature, the focal length of the 3rd lens is f3, satisfies the following relationship formula:
0.00<T23/f<1.50;
0.10<(T45/f)*10<6.00;
1.25<|R5/R6|;
0.50<f/f3<1.40。
When aforementioned optical photography camera lens satisfies following relationship formula: 0.00<T23/f<1.50, can make the configuration of mirror group in the system comparatively tight, help reducing the total length of camera lens.When aforementioned optical photography camera lens satisfies the following relationship formula: 0.10<(T45/f) * 10<6.00 can help revising the higher order aberratons of this optical photography camera lens, with the image quality of elevator system; Further, be preferably and satisfy the following relationship formula: 0.70<(T45/f) * 10<3.00.When aforementioned optical photography camera lens satisfies the following relationship formula: 1.25<| R5/R6| can help revising the spherical aberration of this optical photography camera lens.When aforementioned optical photography camera lens satisfies following relationship formula: 0.50<f/f3<1.40; The refracting power size configure of the 3rd lens is balance comparatively; The effective optics total length of control system, and can avoid the excessive increase of high-order spherical aberration simultaneously, with the elevator system image quality; Further, be preferably and satisfy following relationship formula: 0.65<f/f3<1.00.
In the aforementioned optics phtographic lens of the present invention; Preferably; The thing side surface of the 5th lens and be provided with at least one point of inflexion as at least one surface in the side surface; Be incident in the angle on the photo-sensitive cell with the light of compacting more effectively from the axle visual field, and the further aberration of modified off-axis visual field; And preferably, the material of the 5th lens is a plastic cement, and the plastic cement material lens not only help the making of non-spherical lens, more can effectively reduce production costs.
In the aforementioned optics phtographic lens of the present invention, the abbe number of the 3rd lens is V3, and the abbe number of the 4th lens is V4, preferably, is to satisfy following relationship formula: 23.0<V3-V4<38.0.When V3-V4 satisfies the above-mentioned relation formula, help to promote the ability of this optical photography camera lens correction aberration.
In the aforementioned optics phtographic lens of the present invention, preferably, an aperture is arranged between these second lens and the 3rd lens, obtains well balanced with in total length that is to shorten camera lens and the characteristic that possesses Wide-angle, and help to reduce the susceptibility of system.
In the aforementioned optics phtographic lens of the present invention, the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, preferably, is to satisfy following relationship formula :-1.0<f4/f5<-0.4.When f4/f5 satisfies the above-mentioned relation formula, can make the refracting power of back crowd's lens combination dispose comparatively balance, help the reduction of system sensitivity and the revisal of higher order aberratons.
In the aforementioned optics phtographic lens of the present invention, the thing side surface radius-of-curvature of these second lens is R3, these second lens be R4 as the side surface radius-of-curvature, preferably, be to satisfy following relationship formula: 1.2<R3/R4<4.5.When R3/R4 satisfies the above-mentioned relation formula, can help the aberration that these first lens produce is done revisal, with the image quality of elevator system.
Again on the other hand, the present invention provides a kind of optical photography camera lens, comprises the lens of five pieces of tool refracting powers, by the thing side extremely as side is in regular turn: first lens of the negative refracting power of a tool, and it is a concave surface as side surface; Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And the 5th lens of the positive refracting power of a tool; Wherein, the 3rd lens, the 4th lens and the 5th lens are all crescent lens, and these meniscus lens mean in this lens thing side surface and the picture side surface; At paraxial place; One surface is that convex surface then is concave surface in another surface, and promptly these lens then are concave surface if the thing side surface is a convex surface at paraxial place at paraxial place as side surface; If this lens thing side surface is a concave surface at paraxial place, then convex surface at paraxial place as side surface.
In the aforementioned optics phtographic lens of the present invention, preferably, at least two pieces of lens in the 3rd lens, the 4th lens and the 5th lens; Its thing side surface be aspheric surface as at least one surface in the side surface, aspheric surface can be made into the shape beyond the sphere easily, obtains more controlled variable; In order to subdue aberration; And then reduce the number that lens use, therefore can effectively reduce the total length of camera lens, and the image quality of ability elevator system.
In the aforementioned optics phtographic lens of the present invention, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens is f3, preferably, is to satisfy following relationship formula: 0.65<f/f3<1.00.When f/f3 satisfied the above-mentioned relation formula, the refracting power size configure of the 3rd lens is balance comparatively, the effective optics total length of control system, and can avoid the excessive increase of high-order spherical aberration simultaneously, with the elevator system image quality.
In the aforementioned optics phtographic lens of the present invention, the thing side surface radius-of-curvature of the 3rd lens is R5, the 3rd lens be R6 as the side surface radius-of-curvature, preferably, be to satisfy the following relationship formula: 1.25<| R5/R6|.When | when R5/R6| satisfies the above-mentioned relation formula, can help revising the spherical aberration of this optical photography camera lens.
In the aforementioned optics phtographic lens of the present invention, the abbe number of the 3rd lens is V3, and the abbe number of the 4th lens is V4, preferably, is to satisfy following relationship formula: 23.0<V3-V4<38.0; When V3-V4 satisfies the above-mentioned relation formula, help to promote the ability of this optical photography camera lens correction aberration.
In the aforementioned optics phtographic lens of the present invention, preferably, an aperture is arranged between these second lens and the 3rd lens, in the total length that shortens camera lens and the characteristic that possesses Wide-angle, to obtain well balanced.
In the optical photography 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, 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, and can effectively reduce the optics total length of optical photography camera lens of the present invention.
In the optical photography camera lens of the present invention,, represent that then this lens surface is a convex surface at paraxial place if lens surface is a convex surface; If lens surface is a concave surface, represent that then this lens surface is a concave surface at paraxial place.
Optical photography camera lens of the present invention will specify through following specific embodiment conjunction with figs..
First embodiment:
First embodiment of the invention sees also Fig. 1, and the aberration curve of first embodiment sees also Fig. 2.The optical photography camera lens of first embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
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 a 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 a 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 are that concave surface and picture side surface 152 are convex surface, and its material is a plastic cement, the thing side surface 151 of the 5th lens 150 and be all aspheric surface as side surface 152;
Wherein, this optical photography camera lens is provided with an aperture 100 in addition and places between these second lens 120 and the 3rd lens 130;
Other includes an infrared ray filtering optical filter (IR-filter) 160 and a cover glass (Cover-glass) 170 places between the picture side surface 152 and an imaging surface 180 of the 5th lens 150 in regular turn; The material of this infrared ray filtering optical filter 160 and this cover glass 170 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equation of above-mentioned aspheric curve is represented as follows:
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 photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.65 (millimeter).
In the first embodiment optical photography camera lens, the f-number of whole optics phtographic lens (f-number) is Fno, and its relational expression is: Fno=2.03.
In the first embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=80.0 (degree).
In the first embodiment optical photography camera lens, 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=31.1.
In the first embodiment optical photography camera lens, these second lens 120 are T23 with the distance of the 3rd lens 130 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=0.52.
In the first embodiment optical photography camera lens, the 4th lens 140 are T45 with the distance of the 5th lens 150 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=2.31.
In the first embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 120 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=1.66.
In the first embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 130 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=7.47.
In the first embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 110 is f1, and its relational expression is: f/f1=-0.34.
In the first embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 130 is f3, and its relational expression is: f/f3=0.77.
In the first embodiment optical photography camera lens, the focal length of the 4th lens 140 is f4, and the focal length of the 5th lens 150 is f5, and its relational expression is: f4/f5=-0.63.
In the first embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 110 are f12 with the synthetic focal length of these second lens 120, and its relational expression is: f/f12=0.01.
In the first embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the first embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.48.Moreover 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=4.36.
The detailed optical data of first embodiment is shown in Figure 15 table one, and its aspherical surface data is shown in Figure 16 table two, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
Second embodiment:
Second embodiment of the invention sees also Fig. 3, and the aberration curve of second embodiment sees also Fig. 4.Second embodiment the optical photography camera lens mainly constitute by five pieces of lens, by the thing side to comprising in regular turn as side:
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 a 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 and be all concave surface as side surface 342, its material is a 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 positive refracting power of one tool, its thing side surface 351 and be all convex surface as side surface 352, its material is a plastic cement, the thing side surface 351 of the 5th lens 350 and be all aspheric surface as side surface 352;
Wherein, this optical photography camera lens is provided with an aperture 300 in addition and places between these second lens 320 and the 3rd lens 330;
Other includes an infrared ray filtering optical filter 360 and a cover glass 370 places between the picture side surface 352 and an imaging surface 380 of the 5th lens 350 in regular turn; The material of this infrared ray filtering optical filter 360 and this cover glass 370 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the second embodiment aspheric curve is as the form of first embodiment.
In the second embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.56 (millimeter).
In the second embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.80.
In the second embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=74.7 (degree).
In the second embodiment optical photography camera lens, 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=32.4.
In the second embodiment optical photography camera lens, these second lens 320 are T23 with the distance of the 3rd lens 330 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=0.61.
In the second embodiment optical photography camera lens, the 4th lens 340 are T45 with the distance of the 5th lens 350 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=1.20.
In the second embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 320 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=1.71.
In the second embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 330 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=10.31.
In the second embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 310 is f1, and its relational expression is: f/f1=-0.30.
In the second embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 330 is f3, and its relational expression is: f/f3=0.92.
In the second embodiment optical photography camera lens, the focal length of the 4th lens 340 is f4, and the focal length of the 5th lens 350 is f5, and its relational expression is: f4/f5=-0.47.
In the second embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 310 are f12 with the synthetic focal length of these second lens 320, and its relational expression is: f/f12=0.13.
In the second embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the second embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.43.Moreover 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=4.79.
The detailed optical data of second embodiment is shown in Figure 17 table three, and its aspherical surface data is shown in Figure 18 table four, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
The 3rd embodiment:
Third embodiment of the invention sees also Fig. 5, and the aberration curve of the 3rd embodiment sees also Fig. 6.The optical photography camera lens of the 3rd embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
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 a 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 a 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 positive refracting power of one tool, its thing side surface 551 and be all convex surface as side surface 552, its material is a plastic cement, the thing side surface 551 of the 5th lens 550 and be all aspheric surface as side surface 552;
Wherein, this optical photography camera lens is provided with an aperture 500 in addition and places between these second lens 520 and the 3rd lens 530;
Other includes an infrared ray filtering optical filter 560 and a cover glass 570 places between the picture side surface 552 and an imaging surface 580 of the 5th lens 550 in regular turn; The material of this infrared ray filtering optical filter 560 and cover glass 570 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the 3rd embodiment aspheric curve is as the form of first embodiment.
In the 3rd embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.54 (millimeter).
In the 3rd embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.40.
In the 3rd embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=69.9 (degree).
In the 3rd embodiment optical photography camera lens, 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=30.1.
In the 3rd embodiment optical photography camera lens, these second lens 520 are T23 with the distance of the 3rd lens 530 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=0.57.
In the 3rd embodiment optical photography camera lens, the 4th lens 540 are T45 with the distance of the 5th lens 550 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=2.23.
In the 3rd embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 520 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=2.39.
In the 3rd embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 530 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=4.14.
In the 3rd embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 510 is f1, and its relational expression is: f/f1=-0.34.
In the 3rd embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 530 is f3, and its relational expression is: f/f3=0.62.
In the 3rd embodiment optical photography camera lens, the focal length of the 4th lens 540 is f4, and the focal length of the 5th lens 550 is f5, and its relational expression is: f4/f5=-0.81.
In the 3rd embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 510 are f12 with the synthetic focal length of these second lens 520, and its relational expression is: f/f12=0.14.
In the 3rd embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the 3rd embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.43.Moreover 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=5.30.
The detailed optical data of the 3rd embodiment is shown in Figure 19 table five, and its aspherical surface data is shown in Figure 20 table six, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
The 4th embodiment:
Fourth embodiment of the invention sees also Fig. 7, and the aberration curve of the 4th embodiment sees also Fig. 8.The optical photography camera lens of the 4th embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
The 3rd lens 730 of the positive refracting power of one tool, its thing side surface 731 and be all convex surface as side surface 732, 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;
The 4th lens 740 of the negative refracting power of one tool, its thing side surface 741 and be all concave surface as side surface 742, its material is a plastic cement, the thing side surface 741 of the 4th lens 740 and be all aspheric surface as side surface 742; And
The 5th lens 750 of the positive refracting power of one tool, its thing side surface 751 are that convex surface and picture side surface 752 are concave surface, and its material is a plastic cement, the thing side surface 751 of the 5th lens 750 and be all aspheric surface as side surface 752;
Wherein, this optical photography camera lens is provided with an aperture 700 in addition and places between these second lens 720 and the 3rd lens 730;
Other includes an infrared ray filtering optical filter 760 and a cover glass 770 places between the picture side surface 752 and an imaging surface 780 of the 5th lens 750 in regular turn; The material of this infrared ray filtering optical filter 760 and this cover glass 770 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the 4th embodiment aspheric curve is as the form of first embodiment.
In the 4th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.34 (millimeter).
In the 4th embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.40.
In the 4th embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=97.5 (degree).
In the 4th embodiment optical photography camera lens, the abbe number of the 3rd lens 730 is V3, and the abbe number of the 4th lens 740 is V4, and its relational expression is: V3-V4=31.1.
In the 4th embodiment optical photography camera lens, these second lens 720 are T23 with the distance of the 3rd lens 730 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=1.31.
In the 4th embodiment optical photography camera lens, the 4th lens 740 are T45 with the distance of the 5th lens 750 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=1.04.
In the 4th embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 720 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=1.27.
In the 4th embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 730 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=2.47.
In the 4th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 710 is f1, and its relational expression is: f/f1=-0.33.
In the 4th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 730 is f3, and its relational expression is: f/f3=0.79.
In the 4th embodiment optical photography camera lens, the focal length of the 4th lens 740 is f4, and the focal length of the 5th lens 750 is f5, and its relational expression is: f4/f5=-0.50.
In the 4th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 710 are f12 with the synthetic focal length of these second lens 720, and its relational expression is: f/f12=0.03.
In the 4th embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the 4th embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.37.Moreover 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=5.87.
The detailed optical data of the 4th embodiment is shown in Figure 21 table seven, and its aspherical surface data is shown in Figure 22 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
The 5th embodiment:
Fifth embodiment of the invention sees also Fig. 9, and the aberration curve of the 5th embodiment sees also Figure 10.The optical photography camera lens of the 5th embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 910 of the negative refracting power of one tool, its thing side surface 911 are that convex surface and picture side surface 912 are concave surface, and its material is a glass;
Second lens 920 of the positive refracting power of one tool, its thing side surface 921 are that concave surface and picture side surface 922 are convex surface, and its material is a plastic cement, the thing side surface 921 of these second lens 920 and be all aspheric surface as side surface 922;
The 3rd lens 930 of the positive refracting power of one tool, its thing side surface 931 and be all convex surface as side surface 932, its material is a plastic cement, the thing side surface 931 of the 3rd lens 930 and be all aspheric surface as side surface 932;
The 4th lens 940 of the negative refracting power of one tool, its thing side surface 941 and be all concave surface as side surface 942, its material is a plastic cement, the thing side surface 941 of the 4th lens 940 and be all aspheric surface as side surface 942;
The 5th lens 950 of the positive refracting power of one tool, its thing side surface 951 and be all convex surface as side surface 952, its material is a plastic cement, the thing side surface 951 of the 5th lens 950 and be all aspheric surface as side surface 952;
Wherein, this optical photography camera lens is provided with an aperture 900 in addition and places between these second lens 920 and the 3rd lens 930;
Other includes an infrared ray filtering optical filter 960 and a cover glass 970 places between the picture side surface 952 and an imaging surface 980 of the 5th lens 950 in regular turn; The material of this infrared ray filtering optical filter 960 and this cover glass 970 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the 5th embodiment aspheric curve is as the form of first embodiment.
In the 5th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.20 (millimeter).
In the 5th embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.01.
In the 5th embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=97.5 (degree).
In the 5th embodiment optical photography camera lens, the abbe number of the 3rd lens 930 is V3, and the abbe number of the 4th lens 940 is V4, and its relational expression is: V3-V4=31.1.
In the 5th embodiment optical photography camera lens, these second lens 920 are T23 with the distance of the 3rd lens 930 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=1.28.
In the 5th embodiment optical photography camera lens, the 4th lens 940 are T45 with the distance of the 5th lens 950 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=1.18.
In the 5th embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 920 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=1.31.
In the 5th embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 930 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=3.64.
In the 5th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 910 is f1, and its relational expression is: f/f1=-0.30.
In the 5th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 930 is f3, and its relational expression is: f/f3=0.71.
In the 5th embodiment optical photography camera lens, the focal length of the 4th lens 940 is f4, and the focal length of the 5th lens 950 is f5, and its relational expression is: f4/f5=-0.58.
In the 5th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 910 are f12 with the synthetic focal length of these second lens 920, and its relational expression is: f/f12=0.05.
In the 5th embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the 5th embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.37.Moreover 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=5.74.
The detailed optical data of the 5th embodiment is shown in Figure 23 table nine, and its aspherical surface data is shown in Figure 24 table ten, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
The 6th embodiment:
Sixth embodiment of the invention sees also Figure 11, and the aberration curve of the 6th embodiment sees also Figure 12.The optical photography camera lens of the 6th embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
The 3rd lens 1130 of the positive refracting power of one tool, its thing side surface 1131 and be all convex surface as side surface 1132, its material is a plastic cement, the thing side surface 1131 of the 3rd lens 1130 and be all aspheric surface as side surface 1132;
The 4th lens 1140 of the negative refracting power of one tool, its thing side surface 1141 and be all concave surface as side surface 1142, its material is a plastic cement, the thing side surface 1141 of the 4th lens 1140 and be all aspheric surface as side surface 1142; And
The 5th lens 1150 of the positive refracting power of one tool, its thing side surface 1151 and be all convex surface as side surface 1152, its material is a plastic cement, the thing side surface 1151 of the 5th lens 1150 and be all aspheric surface as side surface 1152;
Wherein, this optical photography camera lens is provided with an aperture 1100 in addition and places between these second lens 1120 and the 3rd lens 1130;
Other includes an infrared ray filtering optical filter 1160 and a cover glass 1170 places between the picture side surface 1152 and an imaging surface 1180 of the 5th lens 1150 in regular turn; The material of this infrared ray filtering optical filter 1160 and this cover glass 1170 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the 6th embodiment aspheric curve is as the form of first embodiment.
In the 6th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.38 (millimeter).
In the 6th embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.84.
In the 6th embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=92.5 (degree).
In the 6th embodiment optical photography camera lens, the abbe number of the 3rd lens 1130 is V3, and the abbe number of the 4th lens 1140 is V4, and its relational expression is: V3-V4=32.4.
In the 6th embodiment optical photography camera lens, these second lens 1120 are T23 with the distance of the 3rd lens 1130 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=0.17.
In the 6th embodiment optical photography camera lens, the 4th lens 1140 are T45 with the distance of the 5th lens 1150 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=0.40.
In the 6th embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 1120 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=0.88.
In the 6th embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 1130 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=1.33.
In the 6th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 1110 is f1, and its relational expression is: f/f1=-0.40.
In the 6th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 1130 is f3, and its relational expression is: f/f3=0.70.
In the 6th embodiment optical photography camera lens, the focal length of the 4th lens 1140 is f4, and the focal length of the 5th lens 1150 is f5, and its relational expression is: f4/f5=-0.53.
In the 6th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 1110 are f12 with the synthetic focal length of these second lens 1120, and its relational expression is: f/f12=-0.24.
In the 6th embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the 6th embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.48.Moreover 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=5.98.
The detailed optical data of the 6th embodiment is shown in Figure 25 table ten one, and its aspherical surface data is shown in Figure 26 table ten two, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
The 7th embodiment:
Seventh embodiment of the invention sees also Figure 13, and the aberration curve of the 7th embodiment sees also Figure 14.The optical photography camera lens of the 7th embodiment mainly is made up of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 1310 of the negative refracting power of one tool, its thing side surface 1311 are that convex surface and picture side surface 1312 are concave surface, and its material is a glass;
Second lens 1320 of the positive refracting power of one tool, its thing side surface 1321 are that concave surface and picture side surface 1322 are convex surface, and its material is a plastic cement, the thing side surface 1321 of these second lens 1320 and be all aspheric surface as side surface 1322;
The 3rd lens 1330 of the positive refracting power of one tool, its thing side surface 1331 and be all convex surface as side surface 1332, its material is a plastic cement, the thing side surface 1331 of the 3rd lens 1330 and be all aspheric surface as side surface 1332;
The 4th lens 1340 of the negative refracting power of one tool, its thing side surface 1341 and be all concave surface as side surface 1342, its material is a plastic cement, the thing side surface 1341 of the 4th lens 1340 and be all aspheric surface as side surface 1342; And
The 5th lens 1350 of the positive refracting power of one tool, its thing side surface 1351 and be all convex surface as side surface 1352, its material is a plastic cement, the thing side surface 1351 of the 5th lens 1350 and be all aspheric surface as side surface 1352;
Wherein, this optical photography camera lens is provided with an aperture 1300 in addition and places between these second lens 1320 and the 3rd lens 1330;
Other includes infrared ray filtering optical filtering 1360 and one cover glass 1370 and places looking like between a side surface 1352 and the imaging surface 1380 of the 5th lens 1350 in regular turn; The material of this infrared ray filtering optical filter 1360 and this cover glass 1370 is that glass and its do not influence the focal length of this optical photography camera lens of the present invention.
The equational expression of the 7th embodiment aspheric curve is as the form of first embodiment.
In the 7th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and its relational expression is: f=1.82 (millimeter).
In the 7th embodiment optical photography camera lens, the f-number of whole optics phtographic lens is Fno, and its relational expression is: Fno=2.82.
In the 7th embodiment optical photography camera lens, the half the of maximum visual angle is HFOV in the whole optics phtographic lens, and its relational expression is: HFOV=85.9 (degree).
In the 7th embodiment optical photography camera lens, the abbe number of the 3rd lens 1330 is V3, and the abbe number of the 4th lens 1340 is V4, and its relational expression is: V3-V4=32.4.
In the 7th embodiment optical photography camera lens, these second lens 1320 are T23 with the distance of the 3rd lens 1330 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: T23/f=0.10.
In the 7th embodiment optical photography camera lens, the 4th lens 1340 are T45 with the distance of the 5th lens 1350 on optical axis, and the focal length of whole optics phtographic lens is f, and its relational expression is: (T45/f) * 10=0.55.
In the 7th embodiment optical photography camera lens, the thing side surface radius-of-curvature of these second lens 1320 is R3 and is R4 as the side surface radius-of-curvature that its relational expression is: R3/R4=1.17.
In the 7th embodiment optical photography camera lens, the thing side surface radius-of-curvature of the 3rd lens 1330 is R5 and is R6 as the side surface radius-of-curvature that its relational expression is: | R5/R6|=1.68.
In the 7th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of these first lens 1310 is f1, and its relational expression is: f/f1=-0.48.
In the 7th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and the focal length of the 3rd lens 1330 is f3, and its relational expression is: f/f3=0.73.
In the 7th embodiment optical photography camera lens, the focal length of the 4th lens 1340 is f4, and the focal length of the 5th lens 1350 is f5, and its relational expression is: f4/f5=-0.54.
In the 7th embodiment optical photography camera lens, the focal length of whole optics phtographic lens is f, and these first lens 1310 are f12 with the synthetic focal length of these second lens 1320, and its relational expression is: f/f12=-0.16.
In the 7th embodiment optical photography camera lens, the number of lenses of tool refracting power is N in this optical photography camera lens, and its relational expression is: N=5.
In the 7th embodiment optical photography camera lens; This optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging on it; 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, and its relational expression is: SL/TTL=0.52.Moreover 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=5.23.
The detailed optical data of the 7th embodiment is shown in Figure 27 table ten three, and its aspherical surface data is shown in Figure 28 table ten four, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as the half the of maximum visual angle.
Table one to table ten four (corresponding Figure 15 to Figure 28 respectively) is depicted as the different numerical value change tables of optical photography 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, thus above explanation is described and accompanying drawing only as exemplary, non-in order to limit claim of the present invention.Table ten five (corresponding Figure 29) is the numeric data of the corresponding correlationship formula of the present invention of each embodiment.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely specific embodiment of the present invention; And be not used in qualification protection scope of the present invention; All within spirit of the present invention and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. an optical photography camera lens is characterized in that, described optical photography camera lens is extremely comprised as side by the thing side in regular turn:
First lens of the negative refracting power of one tool, it is a concave surface as side surface;
Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And
The 5th lens of the positive refracting power of one tool;
Wherein, said optical photography camera lens is provided with an aperture in addition, and said aperture is arranged between said second lens and said the 3rd lens; At least two pieces of lens in said the 3rd lens, said the 4th lens and said the 5th lens, its thing side surface be aspheric surface as at least one surface in the side surface; Said the 4th lens and the distance of said the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f, and the focal length of said the 3rd lens is f3, and the number of lenses of tool refracting power is N in the said optical photography camera lens, satisfies the following relationship formula:
0.10<(T45/>f)*10<6.00;
5 ≦ N ≦ 6; And
0.50
<f/>f3<1.40。
2. optical photography camera lens as claimed in claim 1 is characterized in that, the thing side surface of said first lens is a convex surface, the thing side surface of said the 5th lens and be all aspheric surface as side surface, and the material of said the 5th lens is a plastic cement.
3. optical photography camera lens as claimed in claim 2 is characterized in that, the number of lenses of tool refracting power is N in the said optical photography camera lens, N=5.
4. optical photography camera lens as claimed in claim 3 is characterized in that, the thing side surface of said the 4th lens is convex surface and is concave surface as side surface, and the material of said the 4th lens is a plastic cement.
5. optical photography camera lens as claimed in claim 3 is characterized in that, the focal length of whole optics phtographic lens is f, and the focal length of said the 3rd lens is f3, satisfies the following relationship formula:
0.65
<f/>f3<1.00。
6. optical photography camera lens as claimed in claim 1 is characterized in that, said the 4th lens and the distance of said the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f, satisfies the following relationship formula:
0.70<(T45/>f)*10<3.00。
7. optical photography camera lens as claimed in claim 6 is characterized in that, the focal length of said the 4th lens is f4, and the focal length of said the 5th lens is f5, satisfies the following relationship formula:
-1.0
<f4/>f5<-0.4。
8. optical photography camera lens as claimed in claim 1; It is characterized in that; Said optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging; Said aperture to the distance of said sense electronics optical element on optical axis is SL, and the thing side surface of said first lens to the distance of said sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.30
<SL/>TTL<0.55。
9. optical photography camera lens as claimed in claim 8 is characterized in that, the thing side surface radius-of-curvature of said the 3rd lens is R5, said the 3rd lens be R6 as the side surface radius-of-curvature, satisfy the following relationship formula:
1.25<|R5/>R6|。
10. optical photography camera lens as claimed in claim 2 is characterized in that, the focal length of whole optics phtographic lens is f, and the focal length of said first lens is f1, satisfies the following relationship formula:
-0.40
<f/>f1<-0.25。
11. optical photography camera lens as claimed in claim 3 is characterized in that, the focal length of whole optics phtographic lens is f, and the synthetic focal length of said first lens and said second lens is f12, satisfies the following relationship formula:
0.08
<f/>f12<0.30。
12. optical photography camera lens as claimed in claim 4 is characterized in that, the thing side surface radius-of-curvature of said second lens is R3, said second lens be R4 as the side surface radius-of-curvature, satisfy the following relationship formula:
1.2
<R3/>R4<4.5。
13. optical photography camera lens as claimed in claim 2 is characterized in that, the abbe number of said the 3rd lens is V3, and the abbe number of said the 4th lens is V4, satisfies the following relationship formula:
23.0<V3-V4<38.0。
14. optical photography camera lens as claimed in claim 1; It is characterized in that; Said optical photography camera lens is provided with a sense electronics optical element in addition and supplies the object imaging; The thing side surface of said first lens to the distance of said sense electronics optical element on optical axis is TTL, and the half the of said sense electronics optical element effective pixel area diagonal angle line length is ImgH, satisfies the following relationship formula:
TTL/ImgH<6.0。
15. an optical photography camera lens is characterized in that described optical photography camera lens comprises the lens of five pieces of tool refracting powers, by the thing side extremely as side is in regular turn:
First lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface;
Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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 and be all aspheric surface as side surface; And
The 5th lens of the positive refracting power of one tool, its thing side surface and be all aspheric surface as side surface;
Wherein, Said second lens and the distance of said the 3rd lens on optical axis are T23, and said the 4th lens and the distance of said the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f; The thing side surface radius-of-curvature of said the 3rd lens is R5; Said the 3rd lens be R6 as the side surface radius-of-curvature, the focal length of said the 3rd lens is f3, satisfies the following relationship formula:
0.00
<T23/>f<1.50;
0.10<(T45/>f)*10<6.00;
1.25<|R5/>R6|;
0.50
<f/>f3<1.40。
16. optical photography camera lens as claimed in claim 15 is characterized in that, the material of said the 5th lens is a plastic cement.
17. optical photography camera lens as claimed in claim 16 is characterized in that, the abbe number of said the 3rd lens is V3, and the abbe number of said the 4th lens is V4, satisfies the following relationship formula:
23.0<V3-V4<38.0;
Wherein said optical photography camera lens is provided with an aperture in addition, and said aperture is arranged between said second lens and said the 3rd lens.
18. optical photography camera lens as claimed in claim 17 is characterized in that, the focal length of whole optics phtographic lens is f, and the focal length of said the 3rd lens is f3, satisfies the following relationship formula:
0.65
<f/>f3<1.00。
19. optical photography camera lens as claimed in claim 18 is characterized in that, said the 4th lens and the distance of said the 5th lens on optical axis are T45, and the focal length of whole optics phtographic lens is f, satisfies the following relationship formula:
0.70<(T45/>f)*10<3.00。
20. optical photography camera lens as claimed in claim 15 is characterized in that, the focal length of said the 4th lens is f4; The focal length of said the 5th lens is f5; The thing side surface radius-of-curvature of said second lens is R3, said second lens be R4 as the side surface radius-of-curvature, satisfy the following relationship formula:
-1.0
<f4/>f5<-0.4;
1.2
<R3/>R4<4.5。
21. an optical photography camera lens is characterized in that described optical photography camera lens comprises the lens of five pieces of tool refracting powers, by the thing side extremely as side is in regular turn:
First lens of the negative refracting power of one tool, it is a concave surface as side surface;
Second lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex 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; And
The 5th lens of the positive refracting power of one tool;
Wherein, said the 3rd lens, said the 4th lens and said the 5th lens are all crescent lens, and the focal length of whole optics phtographic lens is f, and the focal length of said the 3rd lens is f3, satisfies the following relationship formula:
0.65
<f/>f3<1.00。
22. optical photography camera lens as claimed in claim 21 is characterized in that, at least two pieces of lens in said the 3rd lens, said the 4th lens and said the 5th lens, its thing side surface be aspheric surface as at least one surface in the side surface.
23. optical photography camera lens as claimed in claim 22 is characterized in that, the thing side surface radius-of-curvature of said the 3rd lens is R5, said the 3rd lens be R6 as the side surface radius-of-curvature, satisfy the following relationship formula:
1.25<|R5/>R6|。
24. optical photography camera lens as claimed in claim 22 is characterized in that, the abbe number of said the 3rd lens is V3, and the abbe number of said the 4th lens is V4, satisfies the following relationship formula:
23.0<V3-V4<38.0;
Wherein said optical photography camera lens is provided with an aperture in addition, and said aperture is arranged between said second lens and said the 3rd lens.
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WO2020194503A1 (en) * | 2019-03-26 | 2020-10-01 | ナルックス株式会社 | Imaging optical system |
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JP2021139955A (en) * | 2020-03-02 | 2021-09-16 | 株式会社リコー | Image capturing optical system, camera device, and stereo camera device |
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