CN102879889A - Imaging optical lens group - Google Patents
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- CN102879889A CN102879889A CN2012103413647A CN201210341364A CN102879889A CN 102879889 A CN102879889 A CN 102879889A CN 2012103413647 A CN2012103413647 A CN 2012103413647A CN 201210341364 A CN201210341364 A CN 201210341364A CN 102879889 A CN102879889 A CN 102879889A
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Abstract
The invention discloses an imaging optical lens group. From an objective side to an image side, the imaging optical lens group sequentially comprises a first lens with positive refraction force, a second lens with negative refraction force, a third lens with the positive refraction force, a fourth lens with the negative refraction force and a fifth lens, wherein the surface of the objective side of the first lens is a convex surface; the surface of the objective side of the second lens is the convex surface, and the surface of the image side of the second lens is a concave surface; the surface of the objective side of the third lens is the concave surface, and the surface of the image side of the third lens is the convex surface; the surface of the image side of the fourth lens is the concave surface, and the surfaces of the objective side and the image side of the fourth lens are aspheric surfaces; the surface of the image side of the fifth lens is the concave surface, and the surfaces of the objective side and the image side of the fifth lens are the aspheric surfaces; and the imaging optical lens group also comprises a diaphragm which is arranged between a shot object and the second lens. In a lens group configuration mode, the size of the lens group can be effectively reduced, the sensitivity of an optical system is reduced, and high resolution can be obtained.
Description
The application is to be on July 9th, 2010 applying date, and application number is 201010225252.6, and denomination of invention is divided an application for the patented claim of " image optics eyeglass group ".
Technical field
The present invention relates to a kind of image optics eyeglass group, relate in particular to a kind of miniaturization image optics eyeglass group that is applied on the portable electronic product.
Background technology
Recent years, along with the rise of the portable electronic product with camera function, the demand of miniaturization phtographic lens day by day improves.And the photo-sensitive cell of general phtographic lens is nothing more than being sensitization coupling element (Charge Coupled Device, CCD) or two kinds of cmos devices (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor).And owing to progressing greatly of manufacturing process technology, so that the Pixel Dimensions of photo-sensitive cell dwindles, the miniaturization phtographic lens develops toward high pixel field gradually, therefore, and to the also day by day increase of requirement of image quality.
Tradition is equipped on the miniaturization phtographic lens on the portable electronic product, many employing four-piece type lens arrangements are main, such as United States Patent (USP) the 7th, 365, shown in No. 920, wherein first lens and the second lens are bonded to each other and become Doublet (doublet) with two sheet glass spherical mirrors, in order to color difference eliminating.But the method has its shortcoming, one, and too much glass spherical mirror configuration causes the total length of system to be difficult for shortening so that degree of freedom in system is not enough; Its two, the bonding manufacturing process of glass mirror is difficult for, and forms easily the difficulty on making.In addition, United States Patent (USP) the 7th, 643 has disclosed the phtographic lens that a kind of four separate lenses consist of for No. 225, includes a plurality of non-spherical lenses, can effectively shorten the total length of system, and obtain good image quality.
But because the high standard mobile devices such as Smartphone (Smart Phone) and PDA (Personal Digital Assistant) is in vogue, driven miniaturization phtographic lens riseing rapidly on pixel and image quality, existing four-piece type lens combination can't satisfy the more phtographic lens module of high-order, add electronic product constantly toward high-performance and lightening trend development, be equipped with the important target that high pixel, high performance miniaturization phtographic lens have just like become the development of high-order electronic product.
In view of this, be badly in need of a kind of being applicable on frivolous, the portable electronic product, image quality is good and be unlikely to the image optics eyeglass group that makes the camera lens total length long.
Summary of the invention
The invention provides a kind of image optics eyeglass group, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; The 4th lens of the negative refracting power of one tool, it is concave surface as side surface, the thing side surface of the 4th lens and be all aspheric surface as side surface; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this image optics eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, this aperture is arranged between object and this second lens, this sense electronics optical element is arranged at the imaging surface place, the thing side surface radius-of-curvature of this first lens is R1, the focal length of whole image optics eyeglass group is f, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies following relationship: 0.25＜R1/f＜0.50; And 0.75＜SL/TTL＜1.10.
On the other hand, the invention provides a kind of image optics eyeglass group, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; One the 4th lens, it is concave surface as side surface, the thing side surface of the 4th lens and be all aspheric surface as side surface; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this image optics eyeglass group is provided with an aperture in addition, this aperture is arranged between object and this second lens, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, in this image optics eyeglass group the thing side surface of the tool refracting power lens of thing side to as the tool refracting power lens of side be Td as the distance of side surface on optical axis, the focal length of whole image optics eyeglass group is f, satisfies following relationship: 0.55＜f1/f3＜1.30; And 0.80＜Td/f＜0.96.
The present invention is by above-mentioned lens set configuration mode, and effectively the susceptibility of contract lenses group volume, reduction optical system more can obtain higher resolving power.
In the image optics eyeglass group of the present invention, the positive refracting power of this first lens tool provides system main refracting power, helps to shorten the total length of this image optics eyeglass group.This second lens tool is born refracting power, and the aberration that can be effectively this first lens of the positive refracting power of tool be produced is done revisal, and is conducive to simultaneously the aberration of update the system.The positive refracting power of the 3rd lens tool can effectively distribute the refracting power of this first lens, helps to reduce the susceptibility of system.The 4th lens can be had a negative refracting power, can form one just with the 3rd lens, negative looking in the distance (Telephoto) structure, can effectively reduce the total length of this image optics eyeglass group.The 5th lens can be positive refracting power or negative refracting power lens, and it acts on as the revisal lens, but every aberration that balance and update the system produce.When the positive refracting power of the 5th lens tool, can be conducive to the higher order aberratons of update the system, improve the resolving power of this image optics eyeglass group; When the negative refracting power of the 5th lens tool, then can make the principal point (Principal Point) of optical system away from imaging surface, be conducive to shorten the optics total length of system, to promote the miniaturization of camera lens.
In the image optics eyeglass group of the present invention, this first lens can be a biconvex lens or a thing side surface is convex surface, is the crescent lens of concave surface as side surface.When this first lens is a biconvex lens, can effectively strengthen the refracting power configuration of this first lens, and then so that the total length of this image optics eyeglass group becomes shorter; When this first lens is the crescent lens of a convex-concave, then comparatively favourable for the astigmatism (Astigmatism) of update the system.The thing side surface of these the second lens is convex surface and is concave surface as side surface, can be beneficial in the back focal length that increases system and the total length that reduces this image optics eyeglass group to average out, and effective update the system aberration.The thing side surface of the 3rd lens is concave surface and is convex surface as side surface, can help to revise the astigmatism of this image optics eyeglass group.The 4th lens as side surface be concave surface and these five 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 system, to promote the miniaturization of camera lens; Further, preferably, the thing side surface of the 4th lens also is concave surface.
In the image optics eyeglass group of the present invention, this aperture can place between object and this first lens or this first lens and this second lens between.Provide positive refracting power by this first lens, and when this aperture placed object side near this image optics eyeglass group, can effectively shorten the optics total length of this image optics eyeglass group.In addition, above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this image optics eyeglass group away from imaging surface, and therefore, light will be incident in the mode near vertical incidence on the photo-sensitive cell, and 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, and with so that the sensitization susceptibility of sense electronics optical element improves, the minimizing system produces the possibility at dark angle.In addition, can be provided with the point of inflexion at the 5th lens, be incident on angle on this photo-sensitive cell with more can effectively suppressing from the light of axle visual field, and the further aberration of modified off-axis visual field.On the other hand, when this aperture being placed more near this second lens place, the characteristic that can be conducive to Wide-angle, help to distort the correction that (Distortion) and multiplying power look are received poor (Chromatic Aberration of Magnification), and so configuration mode is conducive to reduce the susceptibility of system.Therefore, in the image optics eyeglass group of the present invention, if this aperture is arranged between object and this second lens, purpose is to make this image optics eyeglass group to obtain good balance in heart characteristic far away and Wide-angle; When aperture being placed between object and this first lens, focus on heart characteristic far away, the total length of whole image optics eyeglass group can be shorter.
Description of drawings
Figure 1A is the optical system synoptic diagram of first embodiment of the invention;
Figure 1B is the aberration curve figure of first embodiment of the invention;
Fig. 2 A is the optical system synoptic diagram of second embodiment of the invention;
Fig. 2 B is the aberration curve figure of second embodiment of the invention;
Fig. 3 A is the optical system synoptic diagram of third embodiment of the invention;
Fig. 3 B is the aberration curve figure of third embodiment of the invention;
Fig. 4 A is the optical system synoptic diagram of fourth embodiment of the invention;
Fig. 4 B is the aberration curve figure of fourth embodiment of the invention;
Fig. 5 A is the optical system synoptic diagram of fifth embodiment of the invention;
Fig. 5 B is the aberration curve figure of fifth embodiment of the invention;
Fig. 6 is table one, is the optical data of first embodiment of the invention;
Fig. 7 A is that table two A and Fig. 7 B are table two B, is the aspherical surface data of first embodiment of the invention;
Fig. 8 is table three, is the optical data of second embodiment of the invention;
Fig. 9 is table four, is the aspherical surface data of second embodiment of the invention;
Figure 10 is table five, is the optical data of third embodiment of the invention;
Figure 11 A is that table six A and Figure 11 B are table six B, is the aspherical surface data of third embodiment of the invention;
Figure 12 is table seven, is the optical data of fourth embodiment of the invention;
Figure 13 is table eight, is the aspherical surface data of fourth embodiment of the invention;
Figure 14 is table nine, is the optical data of fifth embodiment of the invention;
Figure 15 A is that table ten A and Figure 15 B are table ten B, is the aspherical surface data of fifth embodiment of the invention;
Figure 16 is table ten one, is the numeric data of the present invention's the first to the 5th embodiment correlationship formula.
Drawing reference numeral:
Aperture 100,200,300,400,500
First lens 110,210,310,410,510
Thing side surface 111,211,311,411,511
Picture side surface 112,212,312,412,512
The second lens 120,220,320,420,520
Thing side surface 121,221,321,421,521
Picture side surface 122,222,322,422,522
The 3rd lens 130,230,330,430,530
Thing side surface 131,231,331,431,531
Picture side surface 132,232,332,432,532
The 4th lens 140,240,340,440,540
Thing side surface 141,241,341,441,541
Picture side surface 142,242,342,442,542
The 5th lens 150,250,350,450,550
Thing side surface 151,251,351,451,551
Picture side surface 152,252,352,452,552
Infrared ray filtering optical filter 160,260,360,460,560
Imaging surface 170,270,370,470,570
The focal length of whole image optics eyeglass group is f
The focal length of first lens is f1
The focal length of the 3rd lens is f3
The focal length of the 5th lens is f5
The abbe number of first lens is V1
The abbe number of the second lens is V2
The thing side surface radius-of-curvature of first lens is R1
The second lens be R4 as the side surface radius-of-curvature
The thickness of the second lens on optical axis is CT2
The 3rd lens and the spacing distance of the 4th lens on optical axis are T34
The thing side surface of the tool refracting power lens of thing side is to as the picture side surface of the tool refracting power lens of side
Distance on optical axis is Td
The thing side surface of first lens to the distance of sense electronics optical element on optical axis is TTL
Half of sense electronics optical element effective pixel area diagonal line length is ImgH
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the embodiment of the invention is described in further details.At this, illustrative examples of the present invention and explanation thereof are used for explanation the present invention, but not as a limitation of the invention.
The invention provides a kind of image optics eyeglass group, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; The 4th lens of the negative refracting power of one tool, it is concave surface as side surface, the thing side surface of the 4th lens and be all aspheric surface as side surface; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this image optics eyeglass group is provided with in addition an aperture and a sense electronics optical element supplies the object imaging, this aperture is arranged between object and this second lens, this sense electronics optical element is arranged at the imaging surface place, the thing side surface radius-of-curvature of this first lens is R1, the focal length of whole image optics eyeglass group is f, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies following relationship: 0.25＜R1/f＜0.50; And 0.75＜SL/TTL＜1.10.
When aforementioned optical imaging lens sheet group satisfies following relationship: 0.25＜R1/f＜0.50 can provide this first lens enough positive refracting powers, and avoid simultaneously producing too much higher order aberratons.When aforementioned optical imaging lens sheet group satisfies following relationship: 0.75＜SL/TTL＜1.10 are conducive to this image optics eyeglass group and obtain good balance in heart characteristic far away and Wide-angles; Further, preferably, this aperture is arranged between object and this first lens, and satisfies following relationship: 0.92＜SL/TTL＜1.05, focus on heart characteristic far away, and the total length of whole image optics eyeglass group can be shorter.
In the aforementioned image optics eyeglass of the present invention group, preferably, the thing side surface of the 4th lens is concave surface, this moment, the 4th lens were the form of lens of a concave-concave, the principal point that helps to make system is conducive to shorten the optics total length of system further from imaging surface, to promote the miniaturization of camera lens.
In the aforementioned image optics eyeglass of the present invention group, preferably, the 5th lens as being provided with at least one point of inflexion on the side surface, can effectively suppress from the light of axle visual field and be incident on angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field; Preferably, the material of the 5th lens is plastic cement, and the weight of mirror group can be effectively lowered in the use of plastic cement material lens, more can effectively reduce production costs.
In the aforementioned image optics eyeglass of the present invention group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens is f1, preferably, satisfies following relationship: 1.00＜f/f1＜1.80.When f/f1 satisfies the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, the effective total length of control system, keep the characteristic of miniaturization, and can avoid simultaneously high-order spherical aberration (High Order Spherical Aberration) excessively to increase, and then promote image quality; Further, preferably, satisfy following relationship: 1.30＜f/f1＜1.70.
In the aforementioned image optics eyeglass of the present invention group, the focal length of this first lens is f1, and the focal length of the 3rd lens is f3, preferably, satisfies following relationship: 0.55＜f1/f3＜1.30.When f1/f3 satisfies the above-mentioned relation formula, can effectively distribute the refracting power of this first lens and guarantee that simultaneously the refracting power of the 3rd lens can be not excessive, the generation that is conducive to reduce system sensitivity and reduces aberration.
In the aforementioned image optics eyeglass of the present invention group, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, preferably, satisfies following relationship: 30.0＜V1-V2＜42.0.When V1-V2 satisfies the above-mentioned relation formula, be conducive to the correction of aberration in this image optics eyeglass group.
In the aforementioned image optics eyeglass of the present invention group, these the second lens be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, preferably, satisfies following relationship: 0.30＜R4/f＜0.57.When R4/f satisfies the above-mentioned relation formula, can effectively increase the back focal length of system, there are enough back focal length can place other member to guarantee this image optics eyeglass group.
In the aforementioned image optics eyeglass of the present invention group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, preferably, satisfy following relationship: 0.80＜Td/f＜0.96.When Td/f satisfies the above-mentioned relation formula, can make the configuration of mirror group in the system comparatively tight, to promote the miniaturization of camera lens; Further, preferably, satisfy following relationship: 0.80＜Td/f＜0.93.
In the aforementioned image optics eyeglass of the present invention group, the thickness of these the second lens on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, preferably, satisfies following relationship: 0.30＜(CT2/f) * 10＜0.95.When CT2/f satisfies the above-mentioned relation formula, the lens thickness size of these the second lens is comparatively suitable, can obtain good balance considering between eyeglass manufacturing process yields and the update the system aberration, and be conducive to mouldability and the homogenieity of plastic lens when ejection formation.
In the aforementioned image optics eyeglass of the present invention group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens is f5, preferably, satisfies following relationship: | f/f5|＜0.35.When | when f/f5| satisfied the above-mentioned relation formula, the effect of the 5th lens was conducive to astigmatism and the distortion of update the system as the revisal lens, improves the resolving power of this image optics eyeglass group.
In the aforementioned image optics eyeglass of the present invention group, the 3rd lens and the spacing distance of the 4th lens on optical axis are T34, and the focal length of whole image optics eyeglass group is f, preferably, satisfies following relationship: 0.50＜(T34/f) * 100＜4.50.When T34/f satisfies the above-mentioned relation formula, be conducive to revise the higher order aberratons of this image optics eyeglass group, with the elevator system image quality.
In the aforementioned image optics eyeglass of the present invention group, the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, preferably, satisfies following relationship: TTL/ImgH＜1.95.When TTL/ImgH satisfies the above-mentioned relation formula, be conducive to keep the miniaturization of this image optics eyeglass group, to be equipped on the frivolous portable electronic product.
On the other hand, the invention provides a kind of image optics eyeglass group, extremely sequentially comprised as side by the thing side: the first lens of the positive refracting power of a tool, its thing side surface is convex surface; The second lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; One the 4th lens, it is concave surface as side surface, the thing side surface of the 4th lens and be all aspheric surface as side surface; And one the 5th lens, it is concave surface as side surface, the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this image optics eyeglass group is provided with an aperture in addition, this aperture is arranged between object and this second lens, the focal length of this first lens is f1, the focal length of the 3rd lens is f3, in this image optics eyeglass group the thing side surface of the tool refracting power lens of thing side to as the tool refracting power lens of side be Td as the distance of side surface on optical axis, the focal length of whole image optics eyeglass group is f, satisfies following relationship: 0.55＜f1/f3＜1.30; And 0.80＜Td/f＜0.96.
When aforementioned optical imaging lens sheet group satisfies following relationship: 0.55＜f1/f3＜1.30, can effectively distribute the refracting power of this first lens and guarantee that simultaneously the refracting power of the 3rd lens can be not excessive, the generation that is conducive to reduce system sensitivity and reduces aberration; Further, preferably, satisfy following relationship: 0.65＜f1/f3＜1.00.When aforementioned optical imaging lens sheet group satisfies following relationship: 0.80＜Td/f＜0.96 can make the configuration of mirror group in the system comparatively tight, to promote the miniaturization of camera lens; Further, preferably, satisfy following relationship: 0.80＜Td/f＜0.93.
In the aforementioned image optics eyeglass of the present invention group, preferably, the 4th lens tool is born refracting power, can form one just with the 3rd lens, the negative structure of looking in the distance, and can effectively reduce the total length of this image optics eyeglass group.
In the aforementioned image optics eyeglass of the present invention group, preferably, the 5th lens as being provided with at least one point of inflexion on the side surface, can effectively suppress from the light of axle visual field and be incident on angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field; Preferably, the material of the 4th lens is plastic cement, and the material of the 5th lens is plastic cement, and the weight of mirror group can be effectively lowered in the use of plastic cement material lens, more can effectively reduce production costs.
In the aforementioned image optics eyeglass of the present invention group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens is f1, preferably, satisfies following relationship: 1.30＜f/f1＜1.70.When f/f1 satisfied the above-mentioned relation formula, the refracting power size configure of this first lens is balance comparatively, and effectively the total length of control system is kept the characteristic of miniaturization, and can avoid simultaneously the high-order spherical aberration excessively to increase, and then promoted image quality.
In the aforementioned image optics eyeglass of the present invention group, the thickness of these the second lens on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, preferably, satisfies following relationship: 0.30＜(CT2/f) * 10＜0.95.When CT2/f satisfies the above-mentioned relation formula, the lens thickness size of these the second lens is comparatively suitable, can obtain good balance considering between eyeglass manufacturing process yields and the update the system aberration, and be conducive to mouldability and the homogenieity of plastic lens when ejection formation.
In the aforementioned image optics eyeglass of the present invention group, the 3rd lens and the spacing distance of the 4th lens on optical axis are T34, and the focal length of whole image optics eyeglass group is f, preferably, satisfies following relationship: 0.50＜(T34/f) * 100＜4.50.When T34/f satisfies the above-mentioned relation formula, be conducive to revise the higher order aberratons of this image optics eyeglass group, with the elevator system image quality.
In the aforementioned image optics eyeglass of the present invention group, preferably, this image optics eyeglass group is provided with a sense electronics optical element in addition for the object imaging, this aperture is arranged between object and this first lens, this sense electronics optical element is arranged at the imaging surface place, this aperture is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of this first lens to the distance of this sense electronics optical element on optical axis is TTL, and satisfies following relationship: 0.92＜SL/TTL＜1.05.When SL/TTL satisfies the above-mentioned relation formula, focus on heart characteristic far away, the total length of whole image optics eyeglass group can be shorter.
In the aforementioned image optics eyeglass of the present invention group, the abbe number of this first lens is V1, and the abbe number of these the second lens is V2, preferably, satisfies following relationship: 30.0＜V1-V2＜42.0.When V1-V2 satisfies the above-mentioned relation formula, be conducive to the correction of aberration in this image optics eyeglass group.
In the image optics eyeglass group of the present invention, the material of lens can be glass or plastic cement, if the material of lens is glass, then can increase the degree of freedom of system's refracting power configuration, if the lens material is plastic cement, then can effectively reduce production costs.In addition, and can aspheric surface be set at minute surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more controlled variable, in order to subduing aberration, and then the number that uses of reduction lens, therefore can effectively reduce the total length of image optics eyeglass group of the present invention.
In the image optics eyeglass group of the present invention, if lens surface is convex surface, represent that then this lens surface is convex surface at paraxial place; If lens surface is concave surface, represent that then this lens surface is concave surface at paraxial place.
Image optics eyeglass group of the present invention will cooperate accompanying drawing to be described in detail by following specific embodiment.
The first embodiment:
The optical system synoptic diagram of first embodiment of the invention sees also Figure 1A, and the aberration curve of the first embodiment sees also Figure 1B.The image optics eyeglass group of the first embodiment mainly is made of five lens, is extremely sequentially comprised as side by the thing side:
The first lens 110 of the positive refracting power of one tool, its thing side surface 111 are that convex surface and picture side surface 112 are convex surface, and its material is glass, the thing side surface 111 of this first lens 110 and be all aspheric surface as side surface 112;
The second lens 120 of the negative refracting power of one tool, its thing side surface 121 be that convex surface and picture side surface 122 are concave surface, and its material is plastic cement, the thing side surface 121 of these the second lens 120 and be all aspheric surface as side surface 122;
The 3rd lens 130 of the positive refracting power of one tool, its thing side surface 131 are that concave surface and picture side surface 132 are convex surface, and its material is plastic cement, the thing side surface 131 of the 3rd lens 130 and be all aspheric surface as side surface 132;
The 4th lens 140 of the negative refracting power of one tool, its thing side surface 141 be that convex surface and picture side surface 142 are concave surface, and its material is plastic cement, the thing side surface 141 of the 4th lens 140 and be all aspheric surface as side surface 142; And
The 5th lens 150 of the negative refracting power of one tool, its thing side surface 151 is concave surface 152 for convex surface and as side surface, its material is plastic cement, the thing side surface 151 of the 5th lens and be all aspheric surface as side surface 152, and the 5th lens 150 as being provided with at least one point of inflexion on the side surface 152;
Wherein, this image optics eyeglass group is provided with in addition an aperture 100 and places between object and this first lens 110;
Other includes an infrared ray filtering optical filter (IR-filter) 160 and places looking like between side surface 152 and the imaging surface 170 of the 5th lens 150; The material of this infrared ray filtering optical filter 160 is that glass and its do not affect the focal length of image optics eyeglass group of the present invention.
The equation of above-mentioned aspheric curve is expressed 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 image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: f=5.27 (millimeter).
In the first embodiment image optics eyeglass group, the f-number (f-number) of whole image optics eyeglass group is Fno, and its relational expression is: Fno=2.80.
In the first embodiment image optics eyeglass group, half of maximum visual angle is HFOV in the whole image optics eyeglass group, and its relational expression is: HFOV=34.0 (degree).
In the first embodiment image optics eyeglass group, the abbe number of this first lens 110 is V1, and the abbe number of these the second lens 120 is V2, and its relational expression is: V1-V2=48.8.
In the first embodiment image optics eyeglass group, the thing side surface radius-of-curvature of this first lens 110 is R1, and the focal length of whole image optics eyeglass group is f, and its relational expression is: R1/f=0.46.
In the first embodiment image optics eyeglass group, these the second lens 120 be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, its relational expression is: R4/f=0.43.
In the first embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens 110 is f1, and its relational expression is: f/f1=1.23.
In the first embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens 150 is f5, and its relational expression is: | f/f5|=0.44.
In the first embodiment image optics eyeglass group, the focal length of this first lens 110 is f1, and the focal length of the 3rd lens 130 is f3, and its relational expression is: f1/f3=0.69.
In the first embodiment image optics eyeglass group, the thickness of these the second lens 120 on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (CT2/f) * and 10=0.66.
In the first embodiment image optics eyeglass group, the 3rd lens 130 are T34 with the spacing distance of the 4th lens 140 on optical axis, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (T34/f) * and 100=1.01.
In the first embodiment image optics eyeglass group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: Td/f=0.91.
In the first embodiment image optics eyeglass group, this image optics eyeglass group is provided with a sense electronics optical element at these imaging surface 170 places for the object imaging thereon in addition, this aperture 100 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 111 of this first lens 110 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.99.
In the first embodiment image optics eyeglass group, the thing side surface 111 of this first lens 110 to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.79.
The detailed optical data of the first embodiment is shown in Fig. 6 table one, and its aspherical surface data is shown in Fig. 7 A table two A and Fig. 7 B table two B, and wherein the unit of radius-of-curvature, thickness and focal length is mm (millimeter), and HFOV is defined as half of maximum visual angle.
The second embodiment:
The optical system synoptic diagram of second embodiment of the invention sees also Fig. 2 A, and the aberration curve of the second embodiment sees also Fig. 2 B.The image optics eyeglass group of the second embodiment mainly is made of five lens, is extremely sequentially comprised as side by the thing side:
The first lens 210 of the positive refracting power of one tool, its thing side surface 211 are that convex surface and picture side surface 212 are concave surface, and its material is plastic cement, the thing side surface 211 of this first lens 210 and be all aspheric surface as side surface 212;
The second lens 220 of the negative refracting power of one tool, its thing side surface 221 be that convex surface and picture side surface 222 are concave surface, and its material is plastic cement, the thing side surface 221 of these the second lens 220 and be all aspheric surface as side surface 222;
The 3rd lens 230 of the positive refracting power of one tool, its thing side surface 231 are that concave surface and picture side surface 232 are convex surface, and its material is plastic cement, the thing side surface 231 of the 3rd lens 230 and be all aspheric surface as side surface 232;
The 4th lens 240 of the negative refracting power of one tool, its thing side surface 241 be that convex surface and picture side surface 242 are concave surface, and its material is plastic cement, the thing side surface 241 of the 4th lens 240 and be all aspheric surface as side surface 242; And
The 5th lens 250 of the negative refracting power of one tool, its thing side surface 251 is that convex surface and picture side surface 252 are concave surface, its material is plastic cement, the thing side surface 251 of the 5th lens 250 and be all aspheric surface as side surface 252, and the 5th lens 250 as being provided with at least one point of inflexion on the side surface 252;
Wherein, this image optics eyeglass group is provided with in addition an aperture 200 and places between object and this first lens 210;
Other includes an infrared ray filtering optical filter 260 and places looking like between side surface 252 and the imaging surface 270 of the 5th lens 250; The material of this infrared ray filtering optical filter 260 is that glass and its do not affect the focal length of image optics eyeglass group of the present invention.
The equational expression of the second embodiment aspheric curve is as the form of the first embodiment.
In the second embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: f=5.27 (millimeter).
In the second embodiment image optics eyeglass group, the f-number of whole image optics eyeglass group is Fno, and its relational expression is: Fno=2.40.
In the second embodiment image optics eyeglass group, half of maximum visual angle is HFOV in the whole image optics eyeglass group, and its relational expression is: HFOV=34.0 (degree).
In the second embodiment image optics eyeglass group, the abbe number of this first lens 210 is V1, and the abbe number of these the second lens 220 is V2, and its relational expression is: V1-V2=34.5.
In the second embodiment image optics eyeglass group, the thing side surface radius-of-curvature of this first lens 210 is R1, and the focal length of whole image optics eyeglass group is f, and its relational expression is: R1/f=0.35.
In the second embodiment image optics eyeglass group, these the second lens 220 be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, its relational expression is: R4/f=0.64.
In the second embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens 210 is f1, and its relational expression is: f/f1=1.54.
In the second embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens 250 is f5, and its relational expression is: | f/f5|=0.10.
In the second embodiment image optics eyeglass group, the focal length of this first lens 210 is f1, and the focal length of the 3rd lens 230 is f3, and its relational expression is: f1/f3=0.78.
In the second embodiment image optics eyeglass group, the thickness of these the second lens 220 on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (CT2/f) * and 10=0.78.
In the second embodiment image optics eyeglass group, the 3rd lens 230 are T34 with the spacing distance of the 4th lens 240 on optical axis, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (T34/f) * and 100=1.33.
In the second embodiment image optics eyeglass group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: Td/f=0.89.
In the second embodiment image optics eyeglass group, this image optics eyeglass group is provided with a sense electronics optical element at these imaging surface 270 places for the object imaging thereon in addition, this aperture 200 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 211 of this first lens 210 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.95.
In the second embodiment image optics eyeglass group, the thing side surface 211 of this first lens 210 to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.70.
The detailed optical data of the second embodiment is shown in Fig. 8 table three, and its aspherical surface data is shown in Fig. 9 table four, and wherein the unit of radius-of-curvature, thickness and focal length is mm (millimeter), and HFOV is defined as half of maximum visual angle.
The 3rd embodiment:
The optical system synoptic diagram of third embodiment of the invention sees also Fig. 3 A, and the aberration curve of the 3rd embodiment sees also Fig. 3 B.The image optics eyeglass group of the 3rd embodiment mainly is made of five lens, is extremely sequentially comprised as side by the thing side:
The first lens 310 of the positive refracting power of one tool, its thing side surface 311 are that convex surface and picture side surface 312 are concave surface, and its material is plastic cement, the thing side surface 311 of this first lens 310 and be all aspheric surface as side surface 312;
The second lens 320 of the negative refracting power of one tool, its thing side surface 321 be that convex surface and picture side surface 322 are concave surface, and its material is plastic cement, the thing side surface 321 of these the second lens 320 and be all aspheric surface as side surface 322;
The 3rd lens 330 of the positive refracting power of one tool, its thing side surface 331 are that concave surface and picture side surface 332 are convex surface, and its material is plastic cement, the thing side surface 331 of the 3rd lens 330 and be all aspheric surface as side surface 332;
The 4th lens 340 of the negative refracting power of one tool, its thing side surface 341 be that concave surface and picture side surface 342 are concave surface, and its material is plastic cement, the thing side surface 341 of the 4th lens 340 and be all aspheric surface as side surface 342; And
The 5th lens 350 of the negative refracting power of one tool, its thing side surface 351 is that convex surface and picture side surface 352 are concave surface, its material is plastic cement, the thing side surface 351 of the 5th lens 350 and be all aspheric surface as side surface 352, and the 5th lens 350 as being provided with at least one point of inflexion on the side surface 352;
Wherein, this image optics eyeglass group is provided with in addition an aperture 300 and places between this first lens 310 and this second lens 320;
Other includes an infrared ray filtering optical filter 360 and places looking like between side surface 352 and the imaging surface 370 of the 5th lens 350; The material of this infrared ray filtering optical filter 360 is that glass and its do not affect the focal length of image optics eyeglass group of the present invention.
The equational expression of the 3rd embodiment aspheric curve is as the form of the first embodiment.
In the 3rd embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: f=5.44 (millimeter).
In the 3rd embodiment image optics eyeglass group, the f-number of whole image optics eyeglass group is Fno, and its relational expression is: Fno=2.75.
In the 3rd embodiment image optics eyeglass group, half of maximum visual angle is HFOV in the whole image optics eyeglass group, and its relational expression is: HFOV=33.2 (degree).
In the 3rd embodiment image optics eyeglass group, the abbe number of this first lens 310 is V1, and the abbe number of these the second lens 320 is V2, and its relational expression is: V1-V2=32.5.
In the 3rd embodiment image optics eyeglass group, the thing side surface radius-of-curvature of this first lens 310 is R1, and the focal length of whole image optics eyeglass group is f, and its relational expression is: R1/f=0.35.
In the 3rd embodiment image optics eyeglass group, these the second lens 320 be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, its relational expression is: R4/f=0.41.
In the 3rd embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens 310 is f1, and its relational expression is: f/f1=1.50.
In the 3rd embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens 350 is f5, and its relational expression is: | f/f5|=0.22.
In the 3rd embodiment image optics eyeglass group, the focal length of this first lens 310 is f1, and the focal length of the 3rd lens 330 is f3, and its relational expression is: f1/f3=1.13.
In the 3rd embodiment image optics eyeglass group, the thickness of these the second lens 320 on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (CT2/f) * and 10=0.56.
In the 3rd embodiment image optics eyeglass group, the 3rd lens 330 are T34 with the spacing distance of the 4th lens 340 on optical axis, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (T34/f) * and 100=1.29.
In the 3rd embodiment image optics eyeglass group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: Td/f=0.93.
In the 3rd embodiment image optics eyeglass group, this image optics eyeglass group is provided with a sense electronics optical element at these imaging surface 370 places for the object imaging thereon in addition, this aperture 300 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 311 of this first lens 310 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.87.
In the 3rd embodiment image optics eyeglass group, the thing side surface 311 of this first lens 310 to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.81.
The detailed optical data of the 3rd embodiment is shown in Figure 10 table five, and its aspherical surface data is shown in Figure 11 A table six A and Figure 11 B table six B, and wherein the unit of radius-of-curvature, thickness and focal length is mm (millimeter), and HFOV is defined as half of maximum visual angle.
The 4th embodiment:
The optical system synoptic diagram of fourth embodiment of the invention sees also Fig. 4 A, and the aberration curve of the 4th embodiment sees also Fig. 4 B.The image optics eyeglass group of the 4th embodiment mainly is made of five lens, is extremely sequentially comprised as side by the thing side:
The first lens 410 of the positive refracting power of one tool, its thing side surface 411 are that convex surface and picture side surface 412 are convex surface, and its material is plastic cement, the thing side surface 411 of this first lens 410 and be all aspheric surface as side surface 412;
The second lens 420 of the negative refracting power of one tool, its thing side surface 421 be that convex surface and picture side surface 422 are concave surface, and its material is plastic cement, the thing side surface 421 of these the second lens 420 and be all aspheric surface as side surface 422;
The 3rd lens 430 of the positive refracting power of one tool, its thing side surface 431 are that concave surface and picture side surface 432 are convex surface, and its material is plastic cement, the thing side surface 431 of the 3rd lens 430 and be all aspheric surface as side surface 432;
The 4th lens 440 of the negative refracting power of one tool, its thing side surface 441 be that concave surface and picture side surface 442 are concave surface, and its material is plastic cement, the thing side surface 441 of the 4th lens 440 and be all aspheric surface as side surface 442; And
The 5th lens 450 of the positive refracting power of one tool, its thing side surface 451 is that convex surface and picture side surface 452 are concave surface, its material is plastic cement, the thing side surface 451 of the 5th lens 450 and be all aspheric surface as side surface 452, and the 5th lens 450 as being provided with at least one point of inflexion on the side surface 452;
Wherein, this image optics eyeglass group is provided with in addition an aperture 400 and places between object and this first lens 410;
Other includes an infrared ray filtering optical filter 460 and places looking like between side surface 452 and the imaging surface 470 of the 5th lens 450; The material of this infrared ray filtering optical filter 460 is that glass and its do not affect the focal length of image optics eyeglass group of the present invention.
The equational expression of the 4th embodiment aspheric curve is as the form of the first embodiment.
In the 4th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: f=5.27 (millimeter).
In the 4th embodiment image optics eyeglass group, the f-number of whole image optics eyeglass group is Fno, and its relational expression is: Fno=2.60.
In the 4th embodiment image optics eyeglass group, half of maximum visual angle is HFOV in the whole image optics eyeglass group, and its relational expression is: HFOV=34.0 (degree).
In the 4th embodiment image optics eyeglass group, the abbe number of this first lens 410 is V1, and the abbe number of these the second lens 420 is V2, and its relational expression is: V1-V2=32.5.
In the 4th embodiment image optics eyeglass group, the thing side surface radius-of-curvature of this first lens 410 is R1, and the focal length of whole image optics eyeglass group is f, and its relational expression is: R1/f=0.36.
In the 4th embodiment image optics eyeglass group, these the second lens 420 be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, its relational expression is: R4/f=0.57.
In the 4th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens 410 is f1, and its relational expression is: f/f1=1.66.
In the 4th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens 450 is f5, and its relational expression is: | f/f5|=0.13.
In the 4th embodiment image optics eyeglass group, the focal length of this first lens 410 is f1, and the focal length of the 3rd lens 430 is f3, and its relational expression is: f1/f3=0.75.
In the 4th embodiment image optics eyeglass group, the thickness of these the second lens 420 on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (CT2/f) * and 10=0.76.
In the 4th embodiment image optics eyeglass group, the 3rd lens 430 are T34 with the spacing distance of the 4th lens 440 on optical axis, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (T34/f) * and 100=2.39.
In the 4th embodiment image optics eyeglass group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: Td/f=0.89.
In the 4th embodiment image optics eyeglass group, this image optics eyeglass group is provided with a sense electronics optical element at these imaging surface 470 places for the object imaging thereon in addition, this aperture 400 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 411 of this first lens 410 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.96.
In the 4th embodiment image optics eyeglass group, the thing side surface 411 of this first lens 410 to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.70.
The detailed optical data of the 4th embodiment is shown in Figure 12 table seven, and its aspherical surface data is shown in Figure 13 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is mm (millimeter), and HFOV is defined as half of maximum visual angle.
The 5th embodiment:
The optical system synoptic diagram of fifth embodiment of the invention sees also Fig. 5 A, and the aberration curve of the 5th embodiment sees also Fig. 5 B.The image optics eyeglass group of the 5th embodiment mainly is made of five lens, is extremely sequentially comprised as side by the thing side:
The first lens 510 of the positive refracting power of one tool, its thing side surface 511 are that convex surface and picture side surface 512 are convex surface, and its material is glass, the thing side surface 511 of this first lens 510 and be all aspheric surface as side surface 512;
The second lens 520 of the negative refracting power of one tool, its thing side surface 521 be that convex surface and picture side surface 522 are concave surface, and its material is plastic cement, the thing side surface 521 of these the second lens 520 and be all aspheric surface as side surface 522;
The 3rd lens 530 of the positive refracting power of one tool, its thing side surface 531 are that concave surface and picture side surface 532 are convex surface, and its material is plastic cement, the thing side surface 531 of the 3rd lens 530 and be all aspheric surface as side surface 532;
The 4th lens 540 of the negative refracting power of one tool, its thing side surface 541 be that convex surface and picture side surface 542 are concave surface, and its material is plastic cement, the thing side surface 541 of the 4th lens 540 and be all aspheric surface as side surface 542; And
The 5th lens 550 of the negative refracting power of one tool, its thing side surface 551 is that convex surface and picture side surface 552 are concave surface, its material is plastic cement, the thing side surface 551 of the 5th lens 550 and be all aspheric surface as side surface 552, and the 5th lens 550 as being provided with at least one point of inflexion on the side surface 552;
Wherein, this image optics eyeglass group is provided with in addition an aperture 500 and places between this first lens 510 and this second lens 520;
Other includes an infrared ray filtering optical filter 560 and places looking like between side surface 552 and the imaging surface 570 of the 5th lens 550; The material of this infrared ray filtering optical filter 560 is that glass and its do not affect the focal length of image optics eyeglass group of the present invention.
The equational expression of the 5th embodiment aspheric curve is as the form of the first embodiment.
In the 5th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: f=5.37 (millimeter).
In the 5th embodiment image optics eyeglass group, the f-number of whole image optics eyeglass group is Fno, and its relational expression is: Fno=2.45.
In the 5th embodiment image optics eyeglass group, half of maximum visual angle is HFOV in the whole image optics eyeglass group, and its relational expression is: HFOV=33.6 (degree).
In the 5th embodiment image optics eyeglass group, the abbe number of this first lens 510 is V1, and the abbe number of these the second lens 520 is V2, and its relational expression is: V1-V2=40.7.
In the 5th embodiment image optics eyeglass group, the thing side surface radius-of-curvature of this first lens 510 is R1, and the focal length of whole image optics eyeglass group is f, and its relational expression is: R1/f=0.55.
In the 5th embodiment image optics eyeglass group, these the second lens 520 be R4 as the side surface radius-of-curvature, the focal length of whole image optics eyeglass group is f, its relational expression is: R4/f=0.34.
In the 5th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of this first lens 510 is f1, and its relational expression is: f/f1=1.31.
In the 5th embodiment image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and the focal length of the 5th lens 550 is f5, and its relational expression is: | f/f5|=0.01.
In the 5th embodiment image optics eyeglass group, the focal length of this first lens 510 is f1, and the focal length of the 3rd lens 530 is f3, and its relational expression is: f1/f3=0.49.
In the 5th embodiment image optics eyeglass group, the thickness of these the second lens 520 on optical axis is CT2, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (CT2/f) * and 10=0.53.
In the 5th embodiment image optics eyeglass group, the 3rd lens 530 are T34 with the spacing distance of the 4th lens 540 on optical axis, and the focal length of whole image optics eyeglass group is f, and its relational expression is: (T34/f) * and 100=1.30.
In the 5th embodiment image optics eyeglass group, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in this image optics eyeglass group, the focal length of whole image optics eyeglass group is f, and its relational expression is: Td/f=0.92.
In the 5th embodiment image optics eyeglass group, this image optics eyeglass group is provided with a sense electronics optical element at these imaging surface 570 places for the object imaging thereon in addition, this aperture 500 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 511 of this first lens 510 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is: SL/TTL=0.89.
In the 5th embodiment image optics eyeglass group, the thing side surface 511 of this first lens 510 to the distance of this sense electronics optical element on optical axis is TTL, half of this sense electronics optical element effective pixel area diagonal line length is ImgH, and its relational expression is: TTL/ImgH=1.87.
The detailed optical data of the 5th embodiment is shown in Figure 14 table nine, and its aspherical surface data is shown in Figure 15 A table ten A and Figure 15 B table ten B, and wherein the unit of radius-of-curvature, thickness and focal length is mm (millimeter), and HFOV is defined as half of maximum visual angle.
Table one is depicted as the different numerical value change tables of image optics eyeglass group embodiment of the present invention to table ten (corresponding diagram 6 is to Figure 15 respectively); the all true gained of testing of numerical value change of right each embodiment of the present invention; even use different numerical value; the product of same structure must belong to protection category of the present invention; so above explanation is described and accompanying drawing in illustrated only as exemplary, non-in order to limit claim of the present invention.Table ten one (corresponding Figure 16) is the numeric data of the corresponding correlationship formula of the present invention of each embodiment.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; the protection domain that is not intended to limit the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an image optics eyeglass group is characterized in that, described image optics eyeglass group is extremely sequentially comprised as side by the thing side:
The first lens of the positive refracting power of one tool, its thing side surface is convex surface;
The second lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface;
One the 4th lens, it is concave surface as side surface, the thing side surface of described the 4th lens and be all aspheric surface as side surface; And
One the 5th lens, it is concave surface as side surface, the thing side surface of described the 5th lens and be all aspheric surface as side surface;
Wherein, described image optics eyeglass group is provided with an aperture in addition, described aperture is arranged between object and this second lens, the focal length of described first lens is f1, the focal length of described the 3rd lens is f3, in the described image optics eyeglass group thing side surface of the tool refracting power lens of thing side to as the tool refracting power lens of side be Td as the distance of side surface on optical axis, the focal length of whole image optics eyeglass group is f, satisfies following relationship:
0.55＜f1/f3＜1.30; And
0.80<Td/f<0.96。
2. image optics eyeglass group as claimed in claim 1 is characterized in that, described the 5th lens as being provided with at least one point of inflexion on the side surface, and the material of described the 4th lens is plastic cement, the material of described the 5th lens is plastic cement.
3. image optics eyeglass group as claimed in claim 2 is characterized in that, the focal length of whole image optics eyeglass group is f, and the focal length of described first lens is f1, satisfies following relationship:
1.30<f/f1<1.70。
4. image optics eyeglass group 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 whole image optics eyeglass group is f, satisfies following relationship:
0.30<(CT2/f)×10<0.95。
5. image optics eyeglass group as claimed in claim 2 is characterized in that, described the 3rd lens and the spacing distance of described the 4th lens on optical axis are T34, and the focal length of whole image optics eyeglass group is f, satisfies following relationship:
0.50<(T34/f)×100<4.50。
6. image optics eyeglass group as claimed in claim 2, it is characterized in that, described image optics eyeglass group is provided with a sense electronics optical element in addition for the object imaging, described aperture is arranged between object and this first lens, described sense electronics optical element is arranged at the imaging surface place, described aperture to the distance of described sense electronics optical element on optical axis is SL, and the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies following relationship:
0.92<SL/TTL<1.05。
7. image optics eyeglass group as claimed in claim 6 is characterized in that, the abbe number of described first lens is V1, and the abbe number of described the second lens is V2, satisfies following relationship:
30.0<V1-V2<42.0。
8. image optics eyeglass group as claimed in claim 6 is characterized in that, the focal length of described first lens is f1, and the focal length of described the 3rd lens is f3, satisfies following relationship:
0.65<f1/f3<1.00。
9. image optics eyeglass group as claimed in claim 1, it is characterized in that, the thing side surface of the tool refracting power lens of thing side is to being Td as the tool refracting power lens of side as the distance of side surface on optical axis in the described image optics eyeglass group, the focal length of whole image optics eyeglass group is f, satisfies following relationship:
0.80<Td/f<0.93。
10. image optics eyeglass group as claimed in claim 6 is characterized in that, described the 4th lens tool is born refracting power.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210341364.7A CN102879889B (en) | 2010-07-09 | 2010-07-09 | Imaging optical lens group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210341364.7A CN102879889B (en) | 2010-07-09 | 2010-07-09 | Imaging optical lens group |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010225252 Division CN102313970B (en) | 2010-07-09 | 2010-07-09 | Imaging optics lens group |
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| CN103389566A (en) * | 2012-05-07 | 2013-11-13 | 信泰光学(深圳)有限公司 | Imaging camera |
| CN106802474A (en) * | 2017-03-22 | 2017-06-06 | 浙江舜宇光学有限公司 | Imaging lens |
| TWI615627B (en) * | 2016-11-18 | 2018-02-21 | 大立光電股份有限公司 | Photographing optical lens system, image capturing unit and electronic device |
| CN110133821A (en) * | 2018-02-09 | 2019-08-16 | 三星电机株式会社 | Optical imaging system |
| TWI768950B (en) * | 2021-06-03 | 2022-06-21 | 大立光電股份有限公司 | Photographing optical lens system, imaging apparatus and electronic device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103389566A (en) * | 2012-05-07 | 2013-11-13 | 信泰光学(深圳)有限公司 | Imaging camera |
| CN103389566B (en) * | 2012-05-07 | 2016-08-17 | 信泰光学(深圳)有限公司 | Imaging lens |
| TWI615627B (en) * | 2016-11-18 | 2018-02-21 | 大立光電股份有限公司 | Photographing optical lens system, image capturing unit and electronic device |
| CN106802474A (en) * | 2017-03-22 | 2017-06-06 | 浙江舜宇光学有限公司 | Imaging lens |
| CN113985571A (en) * | 2017-03-22 | 2022-01-28 | 浙江舜宇光学有限公司 | Imaging lens |
| CN106802474B (en) * | 2017-03-22 | 2022-11-22 | 浙江舜宇光学有限公司 | Imaging lens |
| CN110133821A (en) * | 2018-02-09 | 2019-08-16 | 三星电机株式会社 | Optical imaging system |
| TWI768950B (en) * | 2021-06-03 | 2022-06-21 | 大立光電股份有限公司 | Photographing optical lens system, imaging apparatus and electronic device |
| US12181730B2 (en) | 2021-06-03 | 2024-12-31 | Largan Precision Co., Ltd. | Photographing optical lens system, imaging apparatus and electronic device |
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