CN102466854B - Optical lens system - Google Patents

Optical lens system Download PDF

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Publication number
CN102466854B
CN102466854B CN201010539505.7A CN201010539505A CN102466854B CN 102466854 B CN102466854 B CN 102466854B CN 201010539505 A CN201010539505 A CN 201010539505A CN 102466854 B CN102466854 B CN 102466854B
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lens
optical
focal length
thing side
lens system
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CN102466854A (en
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汤相岐
蔡宗翰
黄歆璇
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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Abstract

The invention provides an optical lens system that comprises a first lens, a second lens, a third lens, a fourth lens, and a fifth lens from an object side to an image side in order. The first lens has positive refractive power and the object side surface of the first lens is a convex surface; the second lens has negative refractive power; the third lens has positive refractive power and the object side surface of the third lens is a convex surface; and the image side surface of the fifth lens is a recessed surface, the object side surface and the image side surface of the fifth lens are aspheric surfaces, and at leas one inflection point is arranged on the image side surface of the fifth lens. Therefore, according to the above-mentioned configuration mode of the lens set, a camera lens volume can be effectively reduced; sensitiveness of an optical system can be reduced; and high image interpreting power can be obtained.

Description

Optical lens system
Technical field
The invention relates to a kind of optical lens system; Particularly about a kind of miniaturization optical lens system being applied on portable type electronic product.
Background technology
Recent years, along with thering is the rise of portable type electronic product of camera function, the demand of miniaturization phtographic lens day by day improves, and the photo-sensitive cell of general phtographic lens is nothing more than being sensitization coupling element (Charge Coupled Device, or complementary matal-oxide semiconductor element (Complementary Metal-Oxide Semiconductor Sensor CCD), CMOSSensor) two kinds, and along with progressing greatly of semiconductor process techniques, the Pixel Dimensions of photo-sensitive cell is dwindled, miniaturization phtographic lens is gradually toward the development of high pixel field, therefore, the requirement of image quality is also increased day by day.
Tradition is equipped on the miniaturization phtographic lens on portable type electronic product, as United States Patent (USP) the 7th, 365, shown in No. 920, many employing four-piece type lens arrangements are main, but prevailing due to high standard running gears such as intelligent mobile phone (Smart Phone) and PDA (Personal DigitalAssistant), drive miniaturization phtographic lens riseing rapidly on pixel and image quality, existing four-piece type lens combination cannot meet the more phtographic lens module of high-order, add electronic product constantly toward high-performance and lightening trend development, therefore being badly in need of one is applicable to frivolous, on portable type electronic product, image quality is good and be unlikely to the optical shot for image capture that makes camera lens total length long.
In view of this, be badly in need of a kind of technique simple and easy and possess the optical lens system of good image quality.
Summary of the invention
The invention provides a kind of optical lens system, extremely sequentially comprised as side by thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool; The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface; One the 4th lens; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens be all aspheric surface as side surface, the 5th lens as being provided with at least one point of inflexion on side surface; Wherein, be separately provided with an aperture and a sense electronics optical element, and this aperture is arranged between object and the 3rd lens, this sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of the 3rd lens is f3, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 0.00 < f/f3 < 1.90; 0.7 < SL/TTL < 1.2.
The invention provides on the other hand a kind of optical lens system, extremely sequentially comprised as side by thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool; The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface; The 4th lens of the positive refracting power of one tool; And the 5th lens of the negative refracting power of a tool, it is concave surface as side surface, the thing side surface of the 5th lens be all aspheric surface as side surface, the 5th lens as being provided with at least one point of inflexion on side surface; Wherein, be separately provided with an aperture and a sense electronics optical element, and this aperture is arranged between object and the 3rd lens, this sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of this first lens is f1, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 1.00 < f/f1 < 2.30; 0.7 < SL/TTL < 1.2.
The present invention, by above-mentioned mirror group configuration mode, can effectively dwindle the susceptibility of camera lens volume, reduction optical system, more can obtain higher resolving power.
In optical lens system of the present invention, the positive refracting power of this first lens tool, provides the positive refracting power of system, contributes to shorten the total length of this optical lens system; This second lens tool is born refracting power, and the aberration that can effectively produce the first lens of the positive refracting power of tool makes corrections, and can be conducive to the aberration of update the system simultaneously; The positive refracting power of the 3rd lens tool can effectively distribute the refracting power of this first lens, to reduce the susceptibility of system; The 4th lens and the 5th lens can be positive refracting power or negative refracting power lens, in the time of the positive refracting power of the 4th lens tool and the negative refracting power of the 5th lens tool, form one just, negative looking in the distance (Telephoto) structure, be conducive to shorten the back focal length of system, to reduce its optics total length; In the time of the negative refracting power of the 4th lens tool and the positive refracting power of the 5th lens tool, can effectively revise coma and avoid the excessive increase of other aberrations simultaneously; When the 4th lens and the 5th lens are all when the negative refracting power of tool, can make system principal point (Principal Point) away from imaging surface, more can effectively shorten the optics total length of system.
In optical lens system of the present invention, this first lens can be a biconvex lens or a thing side surface be convex surface, the crescent lens that are concave surface as side surface; In the time that this first lens is a biconvex lens, can effectively strengthens the refracting power configuration of this first lens, and then make the total length of this optical lens system become shorter; In the time that this first lens is the crescent lens of a convex-concave, comparatively favourable for the astigmatism (Astigmatism) of update the system.These the second lens be concave surface as side surface, can effectively increase the back focal length of optical lens system, to guarantee that optical lens system has enough back focal length can place other member.Preferably, the thing side surface of these the second lens is concave surface and is concave surface as side surface, the effectively Petzval Sum of update the system, and can increase the back focal length of system, to guarantee that optical lens system has enough back focal length can place other member.The thing side surface of the 3rd lens and be convex surface as side surface, can contribute to strengthen the positive refracting power of the 3rd lens, is conducive to distribute the refracting power of this first lens, further shortens the optics total length of optical lens system, and reduces the susceptibility of system.The thing side surface of the 4th lens can be concave surface and can be convex surface as side surface, can be comparatively favourable for the astigmatism (Astigmatism) of revising optical lens system.The 5th lens be concave surface as side surface, can make the principal point of system further from imaging surface, be conducive to shorten the optics total length of optical lens system, to maintain the miniaturization of camera lens.
In optical lens system of the present invention, this aperture can be placed between object and this first lens or this first lens and this second lens between or between these second lens and the 3rd lens.Provide positive refracting power by this first lens, and when this aperture is placed in to the object side that approaches this optical lens system, can effectively shorten the optics total length of this optical lens system.In addition, above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this optical lens system away from imaging surface, therefore, light will be incident on photo-sensitive cell in the mode that approaches vertical incidence, this is the heart far away (Telecentric) characteristic of picture side, heart characteristic far away is very important for the photoperceptivity of solid-state electronic photo-sensitive cell, can make the sensitization susceptibility of sense electronics optical element improve, and minimizing system produces the possibility at dark angle.In addition, the 5th lens, as being provided with the point of inflexion on side surface, can more effectively be suppressed from the light of axle visual field and be incident in the angle on photo-sensitive cell, and the further aberration of modified off-axis visual field.On the other hand, when being placed in, this aperture more approaches the 3rd lens place, can be conducive to the characteristic of Wide-angle, contribute to receive distorting (Distortion) and multiplying power look the correction of poor (Chromatic Aberration of Magnification), and so configure the susceptibility that can effectively reduce system.
Therefore, in optical lens system of the present invention, this aperture is arranged between object and the 3rd lens, its objective is and wants to average out in heart characteristic far away and Wide-angle; Further, preferably, this aperture is arranged between this first lens and this second lens.
Brief description of the drawings
Figure 1A is the optical system schematic 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 schematic 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 schematic 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 schematic 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 schematic 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 schematic 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 schematic diagram of seventh embodiment of the invention.
Fig. 7 B is the aberration curve figure of seventh embodiment of the invention.
Fig. 8 is table one, is the optical data of first embodiment of the invention.
Fig. 9 A, Fig. 9 B are table two A, table two B, are the aspherical surface data of first embodiment of the invention.
Figure 10 is table three, is the optical data of second embodiment of the invention.
Figure 11 A, Figure 11 B are table four A, table four B, are the aspherical surface data of second embodiment of the invention.
Figure 12 is table five, is the optical data of third embodiment of the invention.
Figure 13 is table six, is the aspherical surface data of third embodiment of the invention.
Figure 14 is table seven, is the optical data of fourth embodiment of the invention.
Figure 15 is table eight, is the aspherical surface data of fourth embodiment of the invention.
Figure 16 is table nine, is the optical data of fifth embodiment of the invention.
Figure 17 is table ten, is the aspherical surface data of fifth embodiment of the invention.
Figure 18 is table ten one, is the optical data of sixth embodiment of the invention.
Figure 19 is table ten two, is the aspherical surface data of sixth embodiment of the invention.
Figure 20 is table ten three, is the optical data of seventh embodiment of the invention.
Figure 21 is table ten four, is the aspherical surface data of seventh embodiment of the invention.
Figure 22 is table ten five, for the present invention first is to the numerical data of the 7th embodiment correlationship formula.
Drawing reference numeral:
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
The 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
The 4th lens 140,240,340,440,540,640,740
Thing side surface 141,241,341,441,541,641,741
Picture side surface 142,242,342,442,542,642,742
The 5th lens 150,250,350,450,550,650,750
Thing side surface 151,251,351,451,551,651,751
Picture side surface 152,252,352,452,552,652,752
Infrared ray filtering optical filter 160,260,360,460,560,660,760
Imaging surface 170,270,370,470,570,670,770
The focal length of entirety optical lens system 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 abbe number of first lens is V1
The abbe number of the second lens is V2
The abbe number of the 3rd lens is V3
The thing side surface radius-of-curvature of first lens is R1
First lens be R2 as side surface radius-of-curvature
The thing side surface radius-of-curvature of the 4th lens is R7
The 4th lens be R8 as side surface radius-of-curvature
The thing side surface radius-of-curvature of the 5th lens is R9
The 5th lens be R10 as side surface radius-of-curvature
The thickness of the second lens on optical axis is CT2
Aperture to the distance of sense electronics optical element on optical axis is SL,
The thing side surface of first lens to the distance of sense electronics optical element on optical axis is TTL
The half of sense electronics optical element effective pixel area diagonal line length is ImgH
Embodiment
The invention provides a kind of optical lens system, extremely sequentially comprised as side by thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool; The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface; One the 4th lens; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens be all aspheric surface as side surface, the 5th lens as being provided with at least one point of inflexion on side surface; Wherein, be separately provided with an aperture and a sense electronics optical element, and this aperture is arranged between object and the 3rd lens, this sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of the 3rd lens is f3, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 0.00 < f/f3 < 1.90; 0.7 < SL/TTL < 1.2.
When aforementioned optical lens system meets following relationship: the refracting power of 0.00 < f/f3 < 1.90, the three lens is comparatively suitable, can effectively distribute the positive refracting power of this first lens, to reduce the susceptibility of system; Preferably, meet following relationship: 0.00 < f/f3 < 0.80.
When aforementioned optical lens system meets following relationship: 0.7 < SL/TTL < 1.2, is conducive to this optical lens system and obtains good balance in heart characteristic far away and Wide-angle.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface of the 4th lens is concave surface, is convex surface as side surface, can be comparatively favourable for the astigmatism of update the system; Preferably, the thing side surface of the 4th lens be aspheric surface as at least one surface in side surface, and the material of the 5th lens is plastic cement.
In the aforementioned optical lens system of the present invention, preferably, these the second lens be concave surface as side surface, can effectively increase the back focal length of system, to guarantee that optical lens system has enough back focal length can place other member.Preferably, the thing side surface of these the second lens is concave surface, the effectively Petzval Sum of update the system, and can increase the back focal length of system, to guarantee that optical lens system has enough back focal length can place other member.
In the aforementioned optical lens system of the present invention, preferably, the focal length of overall optical lens system is f, and the focal length of this first lens is f1, meets following relationship: 1.00 < f/f1 < 2.30.In the time that f/f1 meets above-mentioned relation formula, the comparatively balance of refracting power size configure of first lens, the effectively optics total length of control system, and can avoid the excessive increase of high-order spherical aberration (HighOrder Spherical Aberration) simultaneously, with Hoisting System image quality; Preferably, meet following relationship: 1.30 < f/f1 < 2.00.
In the aforementioned optical lens system of the present invention, preferably, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, meets following relationship: 28.0 < V1-V2 < 42.0.In the time that V1-V2 meets above-mentioned relation formula, be conducive to the correction of aberration in this optical lens system.
In the aforementioned optical lens system of the present invention, preferably, the abbe number of these the second lens is V2, and the abbe number of the 3rd lens is V3, meets following relationship: | V2-V3| < 12.0.When | when V2-V3| meets above-mentioned relation formula, more contribute to the ability of improving optical lens combination correction aberration.
In the aforementioned optical lens system of the present invention, preferably, the thickness of these the second lens on optical axis is CT2, and the focal length of overall optical lens system is f, meets following relationship: 0.02 < CT2/f < 0.15.In the time that CT2/f meets above-mentioned relation formula, the lens thickness size of these the second lens is comparatively suitable, and the difficulty that can reduce in manufacture is made yield to obtain higher eyeglass, and is conducive to mouldability and the homogenieity of eyeglass in the time making.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface radius-of-curvature of this first lens is R1 and is R2 as side surface radius-of-curvature, meets following relationship :-0.80 < R1/R2 < 0.50.In the time that R1/R2 meets above-mentioned relation formula, the correction of receiving poor (Spherical Aberration) for sphere is more favourable, in addition, because first lens has effect to the total length cripetura of camera lens, so also very effective to the miniaturization of camera lens.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface radius-of-curvature of the 5th lens is R9 and is R10 as side surface radius-of-curvature, meets following relationship: | R10/R9| < 1.3.When | when R10/R9| meets above-mentioned relation formula, can make the principal point of system further from imaging surface, be conducive to shorten the optics total length of system, to maintain the miniaturization of camera lens; Preferably, meet following relationship: | R10/R9| < 0.8.
In the aforementioned optical lens system of the present invention, preferably, the focal length of overall optical lens system is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following relationship:
|(f/f3)+(f/f4)+(f/f5)|＜0.5。When | (f/f3)+(f/f4)+(f/f5) | while meeting above-mentioned relation formula, the refracting power of the 3rd lens, the 4th lens and the 5th lens configures comparatively balance, is conducive to the generation of the susceptibility and the aberration that reduce system.
In the aforementioned optical lens system of the present invention, preferably, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 0.8 < SL/TTL < 0.98.In the time that SL/TTL meets above-mentioned relation formula, be conducive to this optical lens system and obtain good balance in heart characteristic far away and Wide-angle.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, meet following relationship: TTL/ImgH < 2.10.In the time that TTL/ImgH meets above-mentioned relation formula, be conducive to maintain the miniaturization of optical lens system, to be equipped on frivolous portable electronic product.
On the other hand, the invention provides a kind of optical lens system, extremely sequentially comprised as side by thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool; The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface; The 4th lens of the positive refracting power of one tool; And the 5th lens of the negative refracting power of a tool, it is concave surface as side surface, the thing side surface of the 5th lens be all aspheric surface as side surface, the 5th lens as being provided with at least one point of inflexion on side surface; Wherein, be separately provided with an aperture and a sense electronics optical element, and this aperture is arranged between object and the 3rd lens, this sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of this first lens is f1, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 1.00 < f/f1 < 2.30; 0.7 < SL/TTL < 1.2.
When aforementioned optical lens system meets following relationship: 1.00 < f/f1 < 2.30, the effectively optics total length of control system, and can avoid the excessive increase of high-order spherical aberration (High Order Spherical Aberration), with Hoisting System image quality simultaneously; Preferably, meet following relationship: 1.30 < f/f1 < 2.00.
When aforementioned optical lens system meets following relationship: 0.7 < SL/TTL < 1.2, is conducive to this optical lens system and obtains good balance in heart characteristic far away and Wide-angle.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface of these the second lens is concave surface and is concave surface as side surface, the effectively Petzval of update the system and number (Petzval Sum), and can increase the back focal length of system, to guarantee that optical lens system has enough back focal length can place other member.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface of the 4th lens is concave surface, is convex surface as side surface, can be comparatively favourable for the astigmatism of update the system; Preferably, the thing side surface of the 4th lens be aspheric surface as at least one surface in side surface, and the material of the 5th lens is plastic cement.
In the aforementioned optical lens system of the present invention, preferably, the focal length of overall optical lens system is f, and the focal length of the 3rd lens is f3, meets following relationship: 0.00 < f/f3 < 1.90.In the time that f/f3 meets above-mentioned relation formula, the refracting power of the 3rd lens is comparatively suitable, can effectively distribute the positive refracting power of this first lens, to reduce the susceptibility of system.
In the aforementioned optical lens system of the present invention, preferably, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, meets following relationship: 28.0 < V1-V2 < 42.0.In the time that V1-V2 meets above-mentioned relation formula, be conducive to the correction of aberration in this optical lens system.
In the aforementioned optical lens system of the present invention, preferably, the abbe number of these the second lens is V2, and the abbe number of the 3rd lens is V3, meets following relationship: | V2-V3| < 12.0.When | when V2-V3| meets above-mentioned relation formula, more contribute to the ability of improving optical lens combination correction aberration.
In the aforementioned optical lens system of the present invention, preferably, the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following relationship: 0.4 < | f4/f5| < 1.6.When | when f4/f5| meets above-mentioned relation formula, the refracting power of the 4th lens and the 5th lens configures comparatively balance, and the more effectively higher order aberratons of update the system, with the resolution of Hoisting System.
In the aforementioned optical lens system of the present invention, preferably, the focal length of overall optical lens system is f, and the focal length of the 3rd lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, meets following relationship:
|(f/f3)+(f/f4)+(f/f5)|＜0.5。When | (f/f3)+(f/f4)+(f/f5) | while meeting above-mentioned relation formula, the refracting power of the 3rd lens, the 4th lens and the 5th lens configures comparatively balance, is conducive to the generation of the susceptibility and the aberration that reduce system.
In the aforementioned optical lens system of the present invention, preferably, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, meets following relationship: 0.8 < SL/TTL < 0.98.In the time that SL/TTL meets above-mentioned relation formula, be conducive to this optical lens system and obtain good balance in heart characteristic far away and Wide-angle.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface radius-of-curvature of the 5th lens is R9 and is R10 as side surface radius-of-curvature, meets following relationship: | R10/R9| < 1.3.When | when R10/R9| meets above-mentioned relation formula, can make the principal point of system further from imaging surface, be conducive to shorten the optics total length of system, to maintain the miniaturization of camera lens; Preferably, meet following relationship: | R10/R9| < 0.8.
In the aforementioned optical lens system of the present invention, preferably, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, meet following relationship: TTL/ImgH < 2.10.In the time that TTL/ImgH meets above-mentioned relation formula, be conducive to maintain the miniaturization of optical lens system, to be equipped on frivolous portable electronic product.
Optical lens system of the present invention will coordinate appended graphic detailed description in detail by following specific embodiment.
" the first embodiment "
The optical system schematic diagram of first embodiment of the invention refers to Figure 1A, and the aberration curve of the first embodiment refers to Figure 1B.The optical lens system of the first embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 110 of the positive refracting power of one tool, its thing side surface 111 is that convex surface and picture side surface 112 are convex surface, its material is plastic cement, the thing side surface 111 of this first lens 110 be all aspheric surface as side surface 112;
The second lens 120 of the negative refracting power of one tool, its thing side surface 121 be that concave surface and picture side surface 122 are concave surface, its material is plastic cement, the thing side surface 121 of these the second lens 120 and be all aspheric surface as side surface 122;
The 3rd lens 130 of the positive refracting power of one tool, its thing side surface 131 is that convex surface and picture side surface 132 are convex surface, its material is plastic cement, the thing side surface 131 of the 3rd lens 130 be all aspheric surface as side surface 132;
The 4th lens 140 of the positive refracting power of one tool, its thing side surface 141 is that concave surface and picture side surface 142 are convex surface, its material is plastic cement, the thing side surface 141 of the 4th lens 140 be all aspheric surface as side surface 142;
The 5th lens 150 of the negative refracting power of one tool, its thing side surface 151 is that concave surface and picture side surface 152 are concave surface, its material is plastic cement, the thing side surface 151 of the 5th lens 150 be all aspheric surface as side surface 152, and the 5th lens 150 as being provided with at least one point of inflexion on side surface 152;
One aperture 100 is arranged between this first lens 110 and this second lens 120; And
Separately include an infrared ray filtering optical filter (IR Filter) 160 and be placed in looking like between side surface 152 and an imaging surface 170 of the 5th lens 150; The material of this infrared ray filtering optical filter 160 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 170 places for object imagings thereon.
The equation of above-mentioned aspheric curve is expressed as follows:
X ( Y ) = ( Y 2 / R ) / ( 1 + sqrt ( 1 - ( 1 + k ) * ( Y / R ) 2 ) ) + &Sigma; i ( Ai ) * ( Y i )
Wherein:
X: the point that in aspheric surface, distance optical axis is Y, itself and the relative height that is tangential on the tangent plane on summit on aspheric surface optical axis;
Y: the point in aspheric curve and the distance of optical axis;
K: conical surface coefficient;
Ai: i rank asphericity coefficient.
In the first embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=5.97 (millimeter).
In the first embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.60.
In the first embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=32.9 (degree).
In the first embodiment optical lens system, the abbe number of this first lens 110 is V1, and the abbe number of these the second lens 120 is V2, and its relational expression is: V1-V2=34.5.
In the first embodiment optical lens system, the abbe number of these the second lens 120 is V2, and the abbe number of the 3rd lens 130 is V3, and its relational expression is: | V2-V3|=2.46.
In the first embodiment optical lens system, the thickness of these the second lens 120 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.05.
In the first embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 110 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=-0.10.
In the first embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 150 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.31.
In the first embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 140 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=5.01.
In the first embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 110 is f1, and its relational expression is: f/f1=1.84.
In the first embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 130 is f3, and its relational expression is: f/f3=0.48.
In the first embodiment optical lens system, 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|=1.78.
In the first embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 130 is f3, and 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:
|(f/f3)+(f/f4)+(f/f5)|＝0.22。
In the first embodiment optical lens system, aperture 100 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 110 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.83.
In the first embodiment optical lens system, the thing side surface 111 of this first lens 110 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.63.
The detailed optical data of the first embodiment is as shown in Fig. 8 table one, and its aspherical surface data is as shown in Fig. 9 A table two A and Fig. 9 B table two B, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half at maximum visual angle.
" the second embodiment "
The optical system schematic diagram of second embodiment of the invention refers to Fig. 2 A, and the aberration curve of the second embodiment refers to Fig. 2 B.The optical lens system of the second embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 210 of the positive refracting power of one tool, its thing side surface 211 is that convex surface and picture side surface 212 are convex surface, its material is plastic cement, the thing side surface 211 of this first lens 210 be all aspheric surface as side surface 212;
The second lens 220 of the negative refracting power of one tool, its thing side surface 221 be that concave surface and picture side surface 222 are concave surface, its material is plastic cement, the thing side surface 221 of these the second lens 220 and be all aspheric surface as side surface 222;
The 3rd lens 230 of the positive refracting power of one tool, its thing side surface 231 is that convex surface and picture side surface 232 are convex surface, its material is plastic cement, the thing side surface 231 of the 3rd lens 230 be all aspheric surface as side surface 232;
The 4th lens 240 of the positive refracting power of one tool, its thing side surface 241 is that concave surface and picture side surface 242 are convex surface, its material is plastic cement, the thing side surface 241 of the 4th lens 240 be all aspheric surface as side surface 242;
The 5th lens 250 of the negative refracting power of one tool, its thing side surface 251 is that concave surface and picture side surface 252 are concave surface, its material is plastic cement, the thing side surface 251 of the 5th lens 250 be all aspheric surface as side surface 252, and the 5th lens 250 as being provided with at least one point of inflexion on side surface 252;
One aperture 200 is arranged between object and this first lens 210; And
Separately include an infrared ray filtering optical filter (IR Filter) 260 and be placed in looking like between side surface 252 and an imaging surface 270 of the 5th lens 250; The material of this infrared ray filtering optical filter 260 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 270 places for object imagings thereon.
The equational expression of the second embodiment aspheric curve is as the form of the first embodiment.
In the second embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=4.18 (millimeter).
In the second embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.85.
In the second embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=30.4 (degree).
In the second embodiment optical lens system, the abbe number of this first lens 210 is V1, and the abbe number of these the second lens 220 is V2, and its relational expression is: V1-V2=32.0.
In the second embodiment optical lens system, the abbe number of these the second lens 220 is V2, and the abbe number of the 3rd lens 230 is V3, and its relational expression is: | V2-V3|=0.00.
In the second embodiment optical lens system, the thickness of these the second lens 220 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.08.
In the second embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 210 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=-0.40.
In the second embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 250 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.26.
In the second embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 240 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=2.16.
In the second embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 210 is f1, and its relational expression is: f/f1=1.63.
In the second embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 230 is f3, and its relational expression is: f/f3=0.16.
In the second embodiment optical lens system, the focal length of the 4th lens 240 is f4, and the focal length of the 5th lens 250 is f5, and its relational expression is: | f4/f5|=1.17.
In the second embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 230 is f3, and the focal length of the 4th lens 240 is f4, and the focal length of the 5th lens 250 is f5, and its relational expression is:
|(f/f3)+(f/f4)+(f/f5)|＝0.15。
In the second embodiment optical lens system, aperture 200 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 210 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.98.
In the second embodiment optical lens system, the thing side surface 211 of this first lens 210 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.97.
The detailed optical data of the second embodiment is as shown in Figure 10 table three, and its aspherical surface data is as shown in Figure 11 A table four A and Figure 11 B table four B, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half at maximum visual angle.
" the 3rd embodiment "
The optical system schematic diagram of third embodiment of the invention refers to Fig. 3 A, and the aberration curve of the 3rd embodiment refers to Fig. 3 B.The optical lens system of the 3rd embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 310 of the positive refracting power of one tool, its thing side surface 311 is that convex surface and picture side surface 312 are concave surface, its material is plastic cement, the thing side surface 311 of this first lens 310 be all aspheric surface as side surface 312;
The second lens 320 of the negative refracting power of one tool, its thing side surface 321 be that concave surface and picture side surface 322 are concave surface, its material is plastic cement, the thing side surface 321 of these the second lens 320 and be all aspheric surface as side surface 322;
The 3rd lens 330 of the positive refracting power of one tool, its thing side surface 331 is that convex surface and picture side surface 332 are convex surface, its material is plastic cement, the thing side surface 331 of the 3rd lens 330 be all aspheric surface as side surface 332;
The 4th lens 340 of the positive refracting power of one tool, its thing side surface 341 is that concave surface and picture side surface 342 are convex surface, its material is plastic cement, the thing side surface 341 of the 4th lens 340 be all aspheric surface as side surface 342;
The 5th lens 350 of the negative refracting power of one tool, its thing side surface 351 is that convex surface and picture side surface 352 are concave surface, its material is plastic cement, the thing side surface 351 of the 5th lens 350 be all aspheric surface as side surface 352, and the 5th lens 350 as being provided with at least one point of inflexion on side surface 352;
One aperture 300 is arranged between this first lens 310 and this second lens 320; And
Separately include an infrared ray filtering optical filter (IR Filter) 360 and be placed in looking like between side surface 352 and an imaging surface 370 of the 5th lens 350; The material of this infrared ray filtering optical filter 360 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 370 places for object imagings thereon.
The equational expression of the 3rd embodiment aspheric curve is as the form of the first embodiment.
In the 3rd embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=5.96 (millimeter).
In the 3rd embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.66.
In the 3rd embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=32.5 (degree).
In the 3rd embodiment optical lens system, the abbe number of this first lens 310 is V1, and the abbe number of these the second lens 320 is V2, and its relational expression is: V1-V2=32.5.
In the 3rd embodiment optical lens system, the abbe number of these the second lens 320 is V2, and the abbe number of the 3rd lens 330 is V3, and its relational expression is: | V2-V3|=0.00.
In the 3rd embodiment optical lens system, the thickness of these the second lens 320 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.05.
In the 3rd embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 310 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=0.03.
In the 3rd embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 350 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.17.
In the 3rd embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 340 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=4.18.
In the 3rd embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 310 is f1, and its relational expression is: f/f1=1.70.
In the 3rd embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 330 is f3, and its relational expression is: f/f3=0.15.
In the 3rd embodiment optical lens system, 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|=1.22.
In the 3rd embodiment optical lens system, the focal length of entirety optical lens system is f, the focal length of the 3rd lens 330 is f3, the focal length of the 4th lens 340 is f4, the focal length of the 5th lens 350 is f5, and its relational expression is: | (f/f3)+(f/f4)+(f/f5) |=0.08.
In the 3rd embodiment optical lens system, aperture 300 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 310 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.85.
In the 3rd embodiment optical lens system, the thing side surface 311 of this first lens 310 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.70.
The detailed optical data of the 3rd embodiment is as shown in Figure 12 table five, and its aspherical surface data is as 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 at maximum visual angle.
" the 4th embodiment "
The optical system schematic diagram of fourth embodiment of the invention refers to Fig. 4 A, and the aberration curve of the 4th embodiment refers to Fig. 4 B.The optical lens system of the 4th embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 410 of the positive refracting power of one tool, its thing side surface 411 is that convex surface and picture side surface 412 are convex surface, its material is glass, the thing side surface 411 of this first lens 410 be all aspheric surface as side surface 412;
The second lens 420 of the negative refracting power of one tool, its thing side surface 421 be that concave surface and picture side surface 422 are concave surface, its material is glass, the thing side surface 421 of these the second lens 420 and be all aspheric surface as side surface 422;
The 3rd lens 430 of the positive refracting power of one tool, its thing side surface 431 is that convex surface and picture side surface 432 are convex surface, its material is glass, the thing side surface 431 of the 3rd lens 430 be all aspheric surface as side surface 432;
The 4th lens 440 of the negative refracting power of one tool, its thing side surface 441 be that concave surface and picture side surface 442 are convex surface, its material is plastic cement, the thing side surface 441 of the 4th lens 440 and be all aspheric surface as side surface 442;
The 5th lens 450 of the positive refracting power of one tool, its thing side surface 451 is that convex surface and picture side surface 452 are concave surface, its material is plastic cement, the thing side surface 451 of the 5th lens 450 be all aspheric surface as side surface 452, and the 5th lens 450 as being provided with at least one point of inflexion on side surface 452;
One aperture 400 is arranged between this object and this first lens 410; And
Separately include an infrared ray filtering optical filter (IR Filter) 460 and be placed in looking like between side surface 452 and an imaging surface 470 of the 5th lens 450; The material of this infrared ray filtering optical filter 460 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 470 places for object imagings thereon.
The equational expression of the 4th embodiment aspheric curve is as the form of the first embodiment.
In the 4th embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=7.77 (millimeter).
In the 4th embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=3.00.
In the 4th embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=24.7 (degree).
In the 4th embodiment optical lens system, the abbe number of this first lens 410 is V1, and the abbe number of these the second lens 420 is V2, and its relational expression is: V1-V2=6.3.
In the 4th embodiment optical lens system, the abbe number of these the second lens 420 is V2, and the abbe number of the 3rd lens 430 is V3, and its relational expression is: | V2-V3|=30.90.
In the 4th embodiment optical lens system, the thickness of these the second lens 420 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.13.
In the 4th embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 410 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=-0.48.
In the 4th embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 450 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=1.46.
In the 4th embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 440 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=3.15.
In the 4th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 410 is f1, and its relational expression is: f/f1=2.06.
In the 4th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 430 is f3, and its relational expression is: f/f3=1.36.
In the 4th embodiment optical lens system, the focal length of the 4th lens 440 is f4, and the focal length of the 5th lens 450 is f5, and its relational expression is: | f4/f5|=0.95.
In the 4th embodiment optical lens system, the focal length of entirety optical lens system is f, the focal length of the 3rd lens 430 is f3, the focal length of the 4th lens 440 is f4, the focal length of the 5th lens 450 is f5, and its relational expression is: | (f/f3)+(f/f4)+(f/f5) |=1.31.
In the 4th embodiment optical lens system, aperture 400 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 410 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=1.01.
In the 4th embodiment optical lens system, the thing side surface 411 of this first lens 410 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=2.95.
The detailed optical data of the 4th embodiment is as shown in Figure 14 table seven, and its aspherical surface data is as 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 at maximum visual angle.
" the 5th embodiment "
The optical system schematic diagram of fifth embodiment of the invention refers to Fig. 5 A, and the aberration curve of the 5th embodiment refers to Fig. 5 B.The optical lens system of the 5th embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 510 of the positive refracting power of one tool, its thing side surface 511 is that convex surface and picture side surface 512 are convex surface, its material is plastic cement, the thing side surface 511 of this first lens 510 be all aspheric surface as side surface 512;
The second lens 520 of the negative refracting power of one tool, its thing side surface 521 be that convex surface and picture side surface 522 are concave surface, its material is plastic cement, the thing side surface 521 of these the second lens 520 and be all aspheric surface as side surface 522;
The 3rd lens 530 of the positive refracting power of one tool, its thing side surface 531 is that convex surface and picture side surface 532 are convex surface, its material is plastic cement, the thing side surface 531 of the 3rd lens 530 be all aspheric surface as side surface 532;
The 4th lens 540 of the positive refracting power of one tool, its thing side surface 541 is that concave surface and picture side surface 542 are convex surface, its material is plastic cement, the thing side surface 541 of the 4th lens 540 be all aspheric surface as side surface 542;
The 5th lens 550 of the negative refracting power of one tool, its thing side surface 551 is that convex surface and picture side surface 552 are concave surface, its material is plastic cement, the thing side surface 551 of the 5th lens 550 be all aspheric surface as side surface 552, and the 5th lens 550 as being provided with at least one point of inflexion on side surface 552;
One aperture 500 is arranged between this first lens 510 and this second lens 520; And
Separately include an infrared ray filtering optical filter (IR Filter) 560 and be placed in looking like between side surface 552 and an imaging surface 570 of the 5th lens 550; The material of this infrared ray filtering optical filter 560 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 570 places for object imagings thereon.
The equational expression of the 5th embodiment aspheric curve is as the form of the first embodiment.
In the 5th embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=5.99 (millimeter).
In the 5th embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.60.
In the 5th embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=32.7 (degree).
In the 5th embodiment optical lens system, the abbe number of this first lens 510 is V1, and the abbe number of these the second lens 520 is V2, and its relational expression is: V1-V2=32.1.
In the 5th embodiment optical lens system, the abbe number of these the second lens 520 is V2, and the abbe number of the 3rd lens 530 is V3, and its relational expression is: | V2-V3|=0.41.
In the 5th embodiment optical lens system, the thickness of these the second lens 520 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.05.
In the 5th embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 510 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=-0.09.
In the 5th embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 550 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.17.
In the 5th embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 540 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=4.76.
In the 5th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 510 is f1, and its relational expression is: f/f1=1.80.
In the 5th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 530 is f3, and its relational expression is: f/f3=0.35.
In the 5th embodiment optical lens system, 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|=1.23.
In the 5th embodiment optical lens system, the focal length of entirety optical lens system is f, the focal length of the 3rd lens 530 is f3, the focal length of the 4th lens 540 is f4, the focal length of the 5th lens 550 is f5, and its relational expression is: | (f/f3)+(f/f4)+(f/f5) |=0.14.
In the 5th embodiment optical lens system, aperture 500 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 510 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.86.
In the 5th embodiment optical lens system, the thing side surface 511 of this first lens 510 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.69.
The detailed optical data of the 5th embodiment is as shown in Figure 16 table nine, and its aspherical surface data is as 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 at maximum visual angle.
" the 6th embodiment "
The optical system schematic diagram of sixth embodiment of the invention refers to Fig. 6 A, and the aberration curve of the 6th embodiment refers to Fig. 6 B.The optical lens system of the 6th embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 610 of the positive refracting power of one tool, its thing side surface 611 is that convex surface and picture side surface 612 are concave surface, its material is plastic cement, the thing side surface 611 of this first lens 610 be all aspheric surface as side surface 612;
The second lens 620 of the negative refracting power of one tool, its thing side surface 621 be that convex surface and picture side surface 622 are concave surface, its material is plastic cement, the thing side surface 621 of these the second lens 620 and be all aspheric surface as side surface 622;
The 3rd lens 630 of the positive refracting power of one tool, its thing side surface 631 is that convex surface and picture side surface 632 are convex surface, its material is plastic cement, the thing side surface 631 of the 3rd lens 630 be all aspheric surface as side surface 632;
The 4th lens 640 of the negative refracting power of one tool, its thing side surface 641 be that concave surface and picture side surface 642 are convex surface, its material is plastic cement, the thing side surface 641 of the 4th lens 640 and be all aspheric surface as side surface 642;
The 5th lens 650 of the negative refracting power of one tool, its thing side surface 651 is that convex surface and picture side surface 652 are concave surface, its material is plastic cement, the thing side surface 651 of the 5th lens 650 be all aspheric surface as side surface 652, and the 5th lens 650 as being provided with at least one point of inflexion on side surface 652;
One aperture 600 is arranged between object and this first lens 610; And
Separately include an infrared ray filtering optical filter (IR Filter) 660 and be placed in looking like between side surface 652 and an imaging surface 670 of the 5th lens 650; The material of this infrared ray filtering optical filter 660 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 670 places for object imagings thereon.
The equational expression of the 6th embodiment aspheric curve is as the form of the first embodiment.
In the 6th embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=5.77 (millimeter).
In the 6th embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.90.
In the 6th embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=31.3 (degree).
In the 6th embodiment optical lens system, the abbe number of this first lens 610 is V1, and the abbe number of these the second lens 620 is V2, and its relational expression is: V1-V2=32.0.
In the 6th embodiment optical lens system, the abbe number of these the second lens 620 is V2, and the abbe number of the 3rd lens 630 is V3, and its relational expression is: | V2-V3|=0.00.
In the 6th embodiment optical lens system, the thickness of these the second lens 620 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.05.
In the 6th embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 610 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=0.21.
In the 6th embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 650 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.71.
In the 6th embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 640 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=7.80.
In the 6th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 610 is f1, and its relational expression is: f/f1=1.63.
In the 6th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 630 is f3, and its relational expression is: f/f3=0.68.
In the 6th embodiment optical lens system, the focal length of the 4th lens 640 is f4, and the focal length of the 5th lens 650 is f5, and its relational expression is: | f4/f5|=1.80.
In the 6th embodiment optical lens system, the focal length of entirety optical lens system is f, the focal length of the 3rd lens 630 is f3, the focal length of the 4th lens 640 is f4, the focal length of the 5th lens 650 is f5, and its relational expression is: | (f/f3)+(f/f4)+(f/f5) |=0.07.
In the 6th embodiment optical lens system, aperture 600 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 610 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.95.
In the 6th embodiment optical lens system, the thing side surface 611 of this first lens 610 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.71.
The detailed optical data of the 6th embodiment is as shown in Figure 18 table ten one, and its aspherical surface data is as shown in Figure 19 table ten two, and wherein the unit of radius-of-curvature, thickness and focal length is mm, and HFOV is defined as the half at maximum visual angle.
" the 7th embodiment "
The optical system schematic diagram of seventh embodiment of the invention refers to Fig. 7 A, and the aberration curve of the 7th embodiment refers to Fig. 7 B.The optical lens system of the 7th embodiment is mainly made up of five pieces of lens, is extremely sequentially comprised as side by thing side:
The first lens 710 of the positive refracting power of one tool, its thing side surface 711 is that convex surface and picture side surface 712 are concave surface, its material is plastic cement, the thing side surface 711 of this first lens 710 be all aspheric surface as side surface 712;
The second lens 720 of the negative refracting power of one tool, its thing side surface 721 be that concave surface and picture side surface 722 are concave surface, its material is plastic cement, the thing side surface 721 of these the second lens 720 and be all aspheric surface as side surface 722;
The 3rd lens 730 of the positive refracting power of one tool, its thing side surface 731 is that convex surface and picture side surface 732 are convex surface, its material is plastic cement, the thing side surface 731 of the 3rd lens 730 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 be that concave surface and picture side surface 742 are convex surface, its material is plastic cement, the thing side surface 741 of the 4th lens 740 and be all aspheric surface as side surface 742;
The 5th lens 750 of the positive refracting power of one tool, its thing side surface 751 is that convex surface and picture side surface 752 are concave surface, its material is plastic cement, the thing side surface 751 of the 5th lens 750 be all aspheric surface as side surface 752, and the 5th lens 750 as being provided with at least one point of inflexion on side surface 752;
One aperture 700 is arranged between object and this first lens 710; And
Separately include an infrared ray filtering optical filter (IR Filter) 760 and be placed in looking like between side surface 752 and an imaging surface 770 of the 5th lens 750; The material of this infrared ray filtering optical filter 760 is the focal length that glass and its do not affect optical lens system of the present invention, and this optical lens system separately arranges a sense electronics optical element in these imaging surface 770 places for object imagings thereon.
The equational expression of the 7th embodiment aspheric curve is as the form of the first embodiment.
In the 7th embodiment optical lens system, the focal length of overall optical lens system is f, and its relational expression is: f=5.68 (millimeter).
In the 7th embodiment optical lens system, the f-number (f-number) of overall optical lens system is Fno, and its relational expression is: Fno=2.90.
In the 7th embodiment optical lens system, in overall optical lens system, the half at maximum visual angle is HFOV, and its relational expression is: HFOV=31.8 (degree).
In the 7th embodiment optical lens system, the abbe number of this first lens 710 is V1, and the abbe number of these the second lens 720 is V2, and its relational expression is: V1-V2=34.5.
In the 7th embodiment optical lens system, the abbe number of these the second lens 720 is V2, and the abbe number of the 3rd lens 730 is V3, and its relational expression is: | V2-V3|=2.46.
In the 7th embodiment optical lens system, the thickness of these the second lens 720 on optical axis is CT2, and the focal length of overall optical lens system is f, and its relational expression is CT2/f=0.05.
In the 7th embodiment optical lens system, the thing side surface radius-of-curvature of this first lens 710 is R1 and is R2 as side surface radius-of-curvature, and its relational expression is: R1/R2=0.22.
In the 7th embodiment optical lens system, the thing side surface radius-of-curvature of the 5th lens 750 is R9 and is R10 as side surface radius-of-curvature, and its relational expression is: | R10/R9|=0.96.
In the 7th embodiment optical lens system, the thing side surface radius-of-curvature of the 4th lens 740 is R7 and is R8 as side surface radius-of-curvature, and its relational expression is: | (R7+R8)/(R7-R8) |=3.40.
In the 7th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of this first lens 710 is f1, and its relational expression is: f/f1=1.60.
In the 7th embodiment optical lens system, the focal length of overall optical lens system is f, and the focal length of the 3rd lens 730 is f3, and its relational expression is: f/f3=0.80.
In the 7th embodiment optical lens system, 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|=0.10.
In the 7th embodiment optical lens system, the focal length of entirety optical lens system is f, the focal length of the 3rd lens 730 is f3, the focal length of the 4th lens 740 is f4, the focal length of the 5th lens 750 is f5, and its relational expression is: | (f/f3)+(f/f4)+(f/f5) |=0.05.
In the 7th embodiment optical lens system, aperture 700 is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of first lens 710 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.95.
In the 7th embodiment optical lens system, the thing side surface 711 of this first lens 710 to the distance of this sense electronics optical element on optical axis is TTL, and the half of this sense electronics optical element effective pixel area diagonal line length is ImgH, its relational expression is: TTL/ImgH=1.68.
The detailed optical data of the 7th embodiment is as shown in Figure 20 table ten three, and its aspherical surface data is as 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 at maximum visual angle.
Table one is depicted as the different numerical value change tables of optical lens system embodiment of the present invention to table ten four (corresponding diagram 8 is to Figure 21 respectively); so all true gained of testing of numerical value change of each embodiment of the present invention; even if use different numerical value; the product of same structure must belong to protection category of the present invention; therefore above explanation is described and 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 (22)

1. an optical lens system, is characterized in that, is extremely sequentially comprised as side by thing side:
The first lens of the positive refracting power of one tool, its thing side surface is convex surface;
The second lens of the negative refracting power of one tool, its thing side surface is convex surface, is concave surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface;
One the 4th lens; And
One the 5th lens, its thing side surface is convex surface, is concave surface as side surface, the thing side surface of described the 5th lens be all aspheric surface as side surface, described the 5th lens as being provided with at least one point of inflexion on side surface;
Wherein, be separately provided with an aperture and a sense electronics optical element, and described aperture is arranged between object and described the 3rd lens, described sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of described the 3rd lens is f3, 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, meets following relationship:
0.00<f/f3≦0.68；
0.7<SL/TTL<1.2。
2. optical lens system as claimed in claim 1, it is characterized in that, the thing side surface of described the 4th lens is concave surface, is convex surface as side surface, the thing side surface of described the 4th lens be aspheric surface as at least one surface in side surface, and the material of described the 5th lens is plastic cement.
3. optical lens system as claimed in claim 2, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described first lens is f1, meets following relationship:
1.00<f/f1<2.30。
4. optical lens system as claimed in claim 3, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described first lens is f1, meets following relationship:
1.30<f/f1<2.00。
5. optical lens system as claimed in claim 2, is characterized in that, the abbe number of described first lens is V1, and the abbe number of described the second lens is V2, meets following relationship:
28.0<V1-V2<42.0。
6. optical lens system as claimed in claim 1, is characterized in that, the abbe number of described the second lens is V2, and the abbe number of described the 3rd lens is V3, meets following relationship:
︱V2-V3︱<12.0。
7. optical lens system as claimed in claim 2, is characterized in that, the thickness of described the second lens on optical axis is CT2, and the focal length of overall optical lens system is f, meets following relationship:
0.02<CT2/f<0.15。
8. optical lens system as claimed in claim 2, is characterized in that, the thing side surface radius-of-curvature of described first lens is R1 and is R2 as side surface radius-of-curvature, meets following relationship:
-0.80<R1/R2<0.50。
9. optical lens system as claimed in claim 2, is characterized in that, the thing side surface radius-of-curvature of described the 5th lens is R9 and is R10 as side surface radius-of-curvature, meets following relationship:
︱R10/R9︱<1.3。
10. optical lens system as claimed in claim 9, is characterized in that, the thing side surface radius-of-curvature of described the 5th lens is R9 and is R10 as side surface radius-of-curvature, meets following relationship:
︱R10/R9︱<0.8。
11. optical lens systems as claimed in claim 2, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described the 3rd lens is f3, and the focal length of described the 4th lens is f4, and the focal length of described the 5th lens is f5, meets following relationship:
︱(f/f3)+(f/f4)+(f/f5)︱<0.5。
12. optical lens systems as claimed in claim 2, 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, meets following relationship:
0.8<SL/TTL<0.98。
13. optical lens systems as claimed in claim 1, it is characterized in that, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, and the half of described sense electronics optical element effective pixel area diagonal line length is ImgH, meets following relationship:
TTL/ImgH<2.10。
14. 1 kinds of optical lens systems, is characterized in that, are extremely sequentially comprised as side by thing side:
The first lens of the positive refracting power of one tool, its thing side surface is convex surface;
The second lens of the negative refracting power of one tool, its thing side surface is convex surface, is concave surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface is convex surface, is convex surface as side surface;
The 4th lens of the positive refracting power of one tool; And
The 5th lens of the negative refracting power of one tool, its thing side surface is convex surface, is concave surface as side surface, the thing side surface of described the 5th lens be all aspheric surface as side surface, described the 5th lens as being provided with at least one point of inflexion on side surface;
Wherein, be separately provided with an aperture and a sense electronics optical element, and described aperture is arranged between object and described the 3rd lens, described sense electronics optical element is arranged at imaging surface place for object imaging; The focal length of entirety optical lens system is f, the focal length of described first lens is f1, the focal length of described the 4th lens is f4, the focal length of described the 5th lens is f5, 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, meets following relationship:
1.00<f/f1<2.30；
0.4<|f4/f5|≦1.23；
0.7<SL/TTL<1.2。
15. optical lens systems as claimed in claim 14, it is characterized in that, the thing side surface of described the 4th lens is concave surface, is convex surface as side surface, the thing side surface of described the 4th lens be aspheric surface as at least one surface in side surface, and the material of described the 5th lens is plastic cement.
16. optical lens systems as claimed in claim 15, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described first lens is f1, meets following relationship:
1.30<f/f1<2.00。
17. optical lens systems as claimed in claim 15, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described the 3rd lens is f3, meets following relationship:
0.00<f/f3<0.80。
18. optical lens systems as claimed in claim 15, is characterized in that, the abbe number of described first lens is V1, and the abbe number of described the second lens is V2, meets following relationship:
28.0<V1-V2<42.0。
19. optical lens systems as claimed in claim 15, is characterized in that, the focal length of overall optical lens system is f, and the focal length of described the 3rd lens is f3, and the focal length of described the 4th lens is f4, and the focal length of described the 5th lens is f5, meets following relationship:
︱(f/f3)+(f/f4)+(f/f5)︱<0.5。
20. optical lens systems as claimed in claim 15, 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, meets following relationship:
0.8<SL/TTL<0.98。
21. optical lens systems as claimed in claim 15, is characterized in that, the thing side surface radius-of-curvature of described the 5th lens is R9 and is R10 as side surface radius-of-curvature, meets following relationship:
︱R10/R9︱<0.8。
22. optical lens systems as claimed in claim 14, 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 of described sense electronics optical element effective pixel area diagonal line length is ImgH, meets following relationship:
TTL/ImgH<2.10。
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