CN102269861A - Optical lens group for shooting - Google Patents

Optical lens group for shooting Download PDF

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Publication number
CN102269861A
CN102269861A CN 201010194073 CN201010194073A CN102269861A CN 102269861 A CN102269861 A CN 102269861A CN 201010194073 CN201010194073 CN 201010194073 CN 201010194073 A CN201010194073 A CN 201010194073A CN 102269861 A CN102269861 A CN 102269861A
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China
Prior art keywords
lens
mirror slip
optical mirror
slip group
shooting optical
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CN 201010194073
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CN102269861B (en
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汤相岐
蔡宗翰
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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Abstract

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

Description

Shooting optical mirror slip group
Technical field
The present invention relates to a kind of shooting optical mirror slip group, particularly relevant for a kind of miniaturization shooting optical mirror slip group that is applied on the portable electronic product.
Background technology
Recent years, rise along with portable electronic product with camera function, the demand of miniaturization phtographic lens day by day improves, and the photo-sensitive cell of general phtographic lens is nothing more than being sensitization coupling element (Charge Coupled Device, CCD) or CMOS element (Complementary Metal-Oxide Semiconductor Sensor, CMOS Sensor) two kind, and owing to progressing greatly of semiconductor process techniques, make the Pixel Dimensions of photo-sensitive cell dwindle, the miniaturization phtographic lens is gradually toward the development of high pixel field, therefore, the requirement to image quality also increases day by day.
Tradition is equipped on the miniaturization phtographic lens on the portable electronic product, many employing four-piece type lens arrangements are main, as United States Patent (USP) the 7th, 365, shown in No. 920, wherein first lens and 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 makes and the degree of freedom in system deficiency causes the total length of system to be difficult for shortening; Its two, the bonding technology of glass mirror is difficult for, and forms the difficulty on making easily.In addition, United States Patent (USP) the 7th, 643 has disclosed the optical lens that a kind of four separate lenses constitute 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 intelligent mobile phone (Smart Phone) and PDA high standard running gears such as (Personal Digital Assistant) is in vogue, drive miniaturization phtographic lens riseing rapidly on pixel and image quality, existing four-piece type lens combination can't satisfy the more phtographic lens module of high-order, add electronic product constantly toward high-performance and lightening trend development, be equipped with the important target that high pixel, high performance miniaturization phtographic lens have just like become the development of high-order electronic product.
In view of this, be badly in need of a kind of being applicable on frivolous, the portable electronic product, image quality is good and be unlikely to the shooting optical mirror slip group that makes the camera lens total length long.
Summary of the invention
The invention provides a kind of shooting optical mirror slip group, extremely comprise in regular turn as side by the thing side: first lens of the positive refracting power of a tool, its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool; The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of the 4th lens be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, the 5th lens be provided with at least one point of inflexion as side surface, and the 5th lens are plastic cement material; Wherein, this shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; The tool refracting power lens of the most close thing side are these first lens in this shooting optical mirror slip group, and tool refracting power lens are no more than six in this shooting optical mirror slip group; Wherein, these second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, the abbe number of these first lens is V1, the abbe number of these second lens is V2, this aperture is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of these first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
23.0＜V1-V2＜45.0；
0.65＜SL/TTL＜1.10。
On the other hand, the invention provides a kind of shooting optical mirror slip group, extremely comprise in regular turn as side by the thing side: first lens of the positive refracting power of a tool, its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; The 4th lens of the negative refracting power of one tool, its thing side surface be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, and the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in this shooting optical mirror slip group; Wherein, these second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, these first lens and the spacing distance of these second lens on optical axis are T12, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of these first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
0.5＜(T12/f)*100＜15.0；
0.65＜SL/TTL＜1.10。
The present invention is by above-mentioned mirror configuration set mode, and effectively the susceptibility of contract lenses group volume, reduction optical system more can obtain higher resolving power.
The present invention makes a video recording in the optical mirror slip group, and the positive refracting power of this first lens tool provides system required part refracting power, helps to shorten the total length of this shooting optical mirror slip group; This second lens tool is born refracting power, and the aberration that can be effectively these first lens of the positive refracting power of tool be produced is done revisal, and can help the aberration of update the system simultaneously; The positive refracting power of the 3rd lens tool can effectively distribute the refracting power of these first lens, helps to reduce the susceptibility of system; The 4th lens tool is born refracting power, can form one just with the 3rd lens, negative looking in the distance (Telephoto) structure, can effectively reduce the total length of this shooting optical mirror slip group; The 5th lens can be positive refracting power or negative refracting power lens, its effect is as the revisal lens, but balance and every aberration that update the system produced, when the positive refracting power of the 5th lens tool, can effectively revise coma and also avoid the excessive increase of other aberrations simultaneously, when the 5th lens tool was born refracting power, the principal point (Principal Point) that then can make optical system was away from imaging surface, help shortening the optics total length of system, to keep the miniaturization of camera lens.
The present invention makes a video recording in the optical mirror slip group, and these first lens can be a biconvex lens or are that a thing side surface is convex surface and is the crescent lens of concave surface as side surface; When these first lens are a biconvex lens, can effectively strengthen the refracting power configuration of these first lens, and then make the total length of this shooting optical mirror slip group become shorter; When these first lens are the crescent lens of a convex-concave, then comparatively favourable for the astigmatism (Astigmatism) of update the system.The thing side surface of these second lens and be all concave surface as side surface, Petzval and number (Petzval Sum) with effective update the system, make peripheral image planes become more flat, and can increase the back focal length of system, have enough back focal length can place other member to guarantee this shooting optical mirror slip group.The 3rd lens can be a thing side surface to be concave surface and to be the crescent lens of convex surface as side surface, the 4th lens and the 5th lens can be the thing side surface to be convex surface and to be the crescent lens of concave surface as side surface, the effective astigmatism of update the system by this, image quality with elevator system, and the 3rd lens, the 4th lens and the 5th lens are crescent lens, the refracting power of these lens disposes comparatively balance, can effectively reduce the susceptibility of system.
The present invention makes a video recording in the optical mirror slip group, and this aperture can place between object and this first lens or between these first lens and this second lens or between these second lens and the 3rd lens.Provide positive refracting power by these first lens, and when this aperture placed object side near this shooting optical mirror slip group, can effectively shorten the optics total length of this shooting optical mirror slip group.In addition, above-mentioned configuration can make the outgoing pupil (Exit Pupil) of this shooting optical mirror slip group away from imaging surface, therefore, light will be incident in the mode near vertical incidence on the photo-sensitive cell, this is the heart far away (Telecentric) characteristic of picture side, heart characteristic far away is very important for the photoperceptivity of solid-state electronic photo-sensitive cell, can make the sensitization susceptibility of sense electronics optical element improve, and the minimizing system produces the possibility at dark angle.In addition, can be provided with the point of inflexion on the 5th lens, can more effectively suppress light and be incident in angle on the photo-sensitive cell from the axle visual field, and the further aberration of modified off-axis visual field.On the other hand, when this aperture being placed more near the 3rd lens place, the characteristic that can help Wide-angle, help to receive the correction of poor (ChromaticAberration of Magnification), and so dispose the susceptibility that can effectively reduce system distorting (Distortion) and multiplying power look.Therefore, the present invention makes a video recording, and this aperture is arranged between object and the 3rd lens in the optical mirror slip group, its objective is to desire averaging out in heart characteristic far away and Wide-angle, and further, preferably, this aperture is arranged between these first lens and this second lens.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, does not constitute limitation of the invention.In the accompanying drawings:
Fig. 1 is the optical system synoptic diagram of first embodiment of the invention;
Fig. 2 is the aberration curve figure of first embodiment of the invention;
Fig. 3 is the optical system synoptic diagram of second embodiment of the invention;
Fig. 4 is the aberration curve figure of second embodiment of the invention;
Fig. 5 is the optical system synoptic diagram of third embodiment of the invention;
Fig. 6 is the aberration curve figure of third embodiment of the invention;
Fig. 7 is the optical system synoptic diagram of fourth embodiment of the invention;
Fig. 8 is the aberration curve figure of fourth embodiment of the invention;
Fig. 9 is the optical system synoptic diagram of fifth embodiment of the invention;
Figure 10 is the aberration curve figure of fifth embodiment of the invention;
Figure 11 is the optical system synoptic diagram of sixth embodiment of the invention;
Figure 12 is the aberration curve figure of sixth embodiment of the invention;
Figure 13 is a table one, is the optical data of first embodiment;
Figure 14 A is table two A, is the aspherical surface data of first embodiment;
Figure 14 B is table two B, is the aspherical surface data of first embodiment;
Figure 15 is a table three, is the optical data of second embodiment;
Figure 16 A is table four A, is the aspherical surface data of second embodiment;
Figure 16 B is table four B, is the aspherical surface data of second embodiment;
Figure 17 is a table five, is the optical data of the 3rd embodiment;
Figure 18 A is table six A, is the aspherical surface data of the 3rd embodiment;
Figure 18 B is table six B, is the aspherical surface data of the 3rd embodiment;
Figure 19 is a table seven, is the optical data of the 4th embodiment;
Figure 20 is a table eight, is the aspherical surface data of the 4th embodiment;
Figure 21 is a table nine, is the optical data of the 5th embodiment;
Figure 22 is a table ten, is the aspherical surface data of the 5th embodiment;
Figure 23 is a table ten one, is the optical data of the 6th embodiment;
Figure 24 is a table ten two, is the aspherical surface data of the 6th embodiment;
Figure 25 is a table ten three, is the numeric data of the present invention's first to the 6th embodiment correlationship formula.
Drawing reference numeral:
First lens 110,210,310,410,510,610
The thing side surface 111,211,311,411,511,611 of first lens
The picture side surface 112,212,312,412,512,612 of first lens
Second lens 120,220,320,420,520,620
The thing side surface 121,221,321,421,521,621 of second lens
The picture side surface 122,222,322,422,522,622 of second lens
The 3rd lens 130,230,330,430,530,630
The thing side surface 131,231,331,431,531,631 of the 3rd lens
The picture side surface 132,232,332,432,532,632 of the 3rd lens
The 4th lens 140,240,340,440,540,640
The thing side surface 141,241,341,441,541,641 of the 4th lens
The picture side surface 142,242,342,442,542,642 of the 4th lens
The 5th lens 150,250,350,450,550,650
The thing side surface 151,251,351,451,551,651 of the 5th lens
The picture side surface 152,252,352,452,552,652 of the 5th lens
Aperture 100,200,300,400,500,600
Infrared ray filtering optical filter 160,260,360,460,560,660
Imaging surface 170,270,370,470,570,670
The focal length of whole shooting optical mirror slip group is f
The f-number of whole shooting optical mirror slip group is Fno
Half of maximum visual angle is HFOV in the shooting optical mirror slip group
The abbe number of first lens is V1
The abbe number of second lens is V2
The abbe number of the 3rd lens is V3
The abbe number of the 4th lens is V4
The thickness of second lens on optical axis is CT2
Second lens be R4 as the side surface radius-of-curvature
The focal length of first lens is f1
The focal length of the 3rd lens is f3
The focal length of the 5th lens is f5
First lens and the spacing distance of second lens on optical axis are T12
Aperture to the distance of sense electronics optical element on optical axis is SL
The thing side surface of first lens to the distance of sense electronics optical element on optical axis is TTL
Half of sense electronics optical element effective pixel area diagonal angle line length is ImgH
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the embodiment of the invention is described in further details below in conjunction with accompanying drawing.At this, illustrative examples of the present invention and explanation thereof are used to explain the present invention, but not as a limitation of the invention.
The invention provides a kind of shooting optical mirror slip group, extremely comprise in regular turn as side by the thing side: first lens of the positive refracting power of a tool, its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool; The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of the 4th lens be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, the 5th lens be provided with at least one point of inflexion as side surface, and the 5th lens are plastic cement material; Wherein, this shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; The tool refracting power lens of the most close thing side are these first lens in this shooting optical mirror slip group, and tool refracting power lens are no more than six in this shooting optical mirror slip group; Wherein, these second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, the abbe number of these first lens is V1, the abbe number of these second lens is V2, this aperture is SL to the distance of this sense electronics optical element on optical axis, and the thing side surface of these first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
23.0＜V1-V2＜45.0；
0.65＜SL/TTL＜1.10。
When aforementioned shooting optical mirror slip group satisfies following relationship formula: 0.3＜R4/f＜30.0, can effectively increase the back focal length of system, guarantee that this shooting optical mirror slip group has enough back focal length can place other member; Further, be preferably and satisfy following relationship formula: 0.6＜R4/f＜2.0.When aforementioned shooting optical mirror slip group satisfies following relationship formula: 23.0＜V1-V2＜45.0, help the correction of aberration in this shooting optical mirror slip group; Further, be preferably and satisfy following relationship formula: 31.0＜V1-V2＜42.0.When aforementioned shooting optical mirror slip group satisfies following relationship formula: 0.65＜SL/TTL＜1.10, help this shooting optical mirror slip group and in heart characteristic far away and Wide-angle, average out; Further, preferably, this aperture is arranged between these first lens and this second lens, and satisfies following relationship formula: 0.78＜SL/TTL＜0.93.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, the thing side surface of the 3rd lens is concave surface and is convex surface as side surface, helps the astigmatism of update the system; Preferably, the 5th lens tool is born refracting power, and the principal point that can make optical system helps shortening the optics total length of system away from imaging surface, to keep the miniaturization of camera lens; Preferably, tool refracting power lens only are five in this shooting optical mirror slip group, dispose suitable lens number, can help system and obtain higher image quality, and be unlikely to make the camera lens total length oversize.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula: 0.80＜f/f1＜2.00, the focal length of wherein whole shooting optical mirror slip group is f, the focal length of these first lens is f1, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the refracting power size configure of these first lens is balance comparatively, the effective total length of control system, keep the characteristic of miniaturization, and can avoid high-order spherical aberration (HighOrder Spherical Aberration) excessively to increase simultaneously, and then promote image quality; Further, be preferably and satisfy following relationship formula: 1.32＜f/f1＜2.00.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula: 0.25＜f1/f3＜1.20, wherein the focal length of these first lens is f1, the focal length of the 3rd lens is f3, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the refracting power of these first lens and the 3rd lens disposes comparatively balance, helps reducing the susceptibility and the generation that reduces aberration of system.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy the following relationship formula: 0.3＜(CT2/f) * 10＜1.1, wherein the thickness of these second lens on optical axis is CT2, the focal length of whole shooting optical mirror slip group is f, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the lens thickness size of these second lens is comparatively suitable, can obtain good balance considering between eyeglass technology yields and the update the system aberration, and help mouldability and the homogenieity of plastic lens when ejection formation.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy the following relationship formula: 0.5＜(T12/f) * 100＜9.5, wherein these first lens and the spacing distance of these second lens on optical axis are T12, the focal length of whole shooting optical mirror slip group is f, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, these first lens and the spacing distance of these second lens on optical axis are comparatively suitable, can avoid the too short and difficulty that causes lens set to load onto of spacing distance, or spacing distance is long and influence the miniaturization of camera lens; Further, be preferably and satisfy the following relationship formula: 0.5＜(T12/f) * 100＜5.5.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula :-0.35＜f/f5＜0.35, the focal length of wherein whole shooting optical mirror slip group is f, the focal length of the 5th lens is f5, and when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the effect of the 5th lens is as the revisal lens, help the astigmatism and the distortion of update the system, improve the resolving power of this shooting optical mirror slip group.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula: TTL/ImgH＜1.95, wherein the thing side surface of these 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 angle line length is ImgH, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, help keeping the characteristic of this shooting optical mirror slip group miniaturization, be beneficial to be equipped on the frivolous portable electronic product.
On the other hand, the invention provides a kind of shooting optical mirror slip group, extremely comprise in regular turn as side by the thing side: first lens of the positive refracting power of a tool, its thing side surface is a convex surface; Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface; The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface; The 4th lens of the negative refracting power of one tool, its thing side surface be aspheric surface as at least one surface in the side surface; And one the 5th lens, its thing side surface is convex surface and is concave surface as side surface, and the thing side surface of the 5th lens and be all aspheric surface as side surface; Wherein, this shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and this aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in this shooting optical mirror slip group; Wherein, these second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, these first lens and the spacing distance of these second lens on optical axis are T12, this aperture to the distance of this sense electronics optical element on optical axis is SL, the thing side surface of these first lens to the distance of this sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
0.5＜(T12/f)*100＜15.0；
0.65＜SL/TTL＜1.10。
When aforementioned shooting optical mirror slip group satisfies following relationship formula: 0.3＜R4/f＜30.0, can effectively increase the back focal length of system, guarantee that this shooting optical mirror slip group has enough back focal length can place other member; Further, be preferably and satisfy following relationship formula: 0.5＜R4/f＜10.0.When aforementioned shooting optical mirror slip group satisfies the following relationship formula: 0.5＜(T12/f) * 100＜15.0, these first lens and the spacing distance of these second lens on optical axis are comparatively suitable, can avoid the too short and difficulty that causes lens set to load onto of spacing distance, or spacing distance is long and influence the miniaturization of camera lens; Further, be preferably and satisfy the following relationship formula: 0.5＜(T12/f) * 100＜9.5.When aforementioned shooting optical mirror slip group satisfies following relationship formula: 0.65＜SL/TTL＜1.10, help this shooting optical mirror slip group and in heart characteristic far away and Wide-angle, average out; Further, preferably, this aperture is arranged between these first lens and this second lens, and satisfies following relationship formula: 0.78＜SL/TTL＜0.93.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, the thing side surface of the 4th lens is convex surface and is concave surface as side surface, helps the astigmatism of update the system; Preferably, the 5th lens be provided with at least one point of inflexion as side surface, can suppress light effectively and be incident in angle on the photo-sensitive cell, and the further aberration of modified off-axis visual field from the axle visual field; Preferably, the 5th lens are plastic cement material, and the weight of lens set can be effectively lowered in the use of plastic cement material lens, more can effectively reduce production costs.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, satisfy following relationship formula: 31.0＜V1-V2＜42.0, wherein the abbe number of these first lens is V1, the abbe number of these second lens is V2, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, help the correction of aberration in this shooting optical mirror slip group.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula: 1.32＜f/f1＜2.00, the focal length of wherein whole shooting optical mirror slip group is f, and the focal length of these first lens is f1, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the refracting power size configure of these first lens is balance comparatively, and the effective total length of control system is kept the characteristic of miniaturization, and can avoid the high-order spherical aberration excessively to increase simultaneously, and then promote image quality.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula :-0.35＜f/f5＜0.35, the focal length of wherein whole shooting optical mirror slip group is f, the focal length of the 5th lens is f5, and when this shooting optical mirror slip group satisfies the above-mentioned relation formula, the effect of the 5th lens is as the revisal lens, help the astigmatism and the distortion of update the system, improve the resolving power of this shooting optical mirror slip group.
In the aforementioned shooting optical mirror slip of the present invention group, preferably, be to satisfy following relationship formula: 23.0＜V3-V4＜45.0, wherein the abbe number of the 3rd lens is V3, the abbe number of the 4th lens is V4, when this shooting optical mirror slip group satisfies the above-mentioned relation formula, help the correction of aberration in this shooting optical mirror slip group.
In the present invention made a video recording the optical mirror slip group, the material of lens can be glass or plastic cement, if the material of lens is a glass, then can increase the degree of freedom of system's refracting power configuration, if the lens material is a plastic cement, then can effectively reduce production costs.In addition, aspheric surface can be set on minute surface, aspheric surface can be made into the shape beyond the sphere easily, obtain more controlled variable, in order to subduing aberration, and then the number that uses of reduction lens, therefore can effectively reduce the make a video recording total length of optical mirror slip group of the present invention.
In the present invention makes a video recording the optical mirror slip group,, represent that then this lens surface is a convex surface at paraxial place if lens surface is a convex surface; If lens surface is a concave surface, represent that then this lens surface is a concave surface at paraxial place.
The present invention's optical mirror slip group of making a video recording will be described in detail by following specific embodiment conjunction with figs..
First embodiment:
The optical system synoptic diagram of first embodiment of the invention sees also Fig. 1, and the aberration curve of first embodiment sees also Fig. 2.The shooting optical mirror slip group of first embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 110 of the positive refracting power of one tool, its thing side surface 111 and be all convex surface as side surface 112, its material is a plastic cement, the thing side surface 111 of these first lens 110 and be all aspheric surface as side surface 112;
Second lens 120 of the negative refracting power of one tool, its thing side surface 121 and be all concave surface as side surface 122, its material is a plastic cement, the thing side surface 121 of these 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 a plastic cement, the thing side surface 131 of the 3rd lens 130 and be all aspheric surface as side surface 132;
The 4th lens 140 of the negative refracting power of one tool, its thing side surface 141 be that convex surface and picture side surface 142 are concave surface, and its material is a plastic cement, the thing side surface 141 of the 4th lens 140 and be all aspheric surface as side surface 142; And
The 5th lens 150 of the positive refracting power of one tool, its thing side surface 151 is that convex surface and picture side surface 152 are concave surface, its material is a plastic cement, the thing side surface 151 of the 5th lens 150 and be all aspheric surface as side surface 152, and the 5th lens 150 be provided with at least one point of inflexion as side surface 152;
Wherein, this shooting optical mirror slip group is provided with an aperture 100 in addition and places between an object and this first lens 110;
Other includes an infrared ray filtering optical filter (IR-filter) 160 and places looking like between a side surface 152 and the imaging surface 170 of the 5th lens 150, and this infrared ray filtering optical filter 160 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equation of above-mentioned aspheric curve is expressed as follows:
X ( Y ) = ( Y 2 / R ) / ( 1 + sqrt ( 1 - ( 1 + k ) * ( Y / R ) 2 ) ) + Σ i ( Ai ) * ( Y i )
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.
First embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=3.90 (millimeter).
First embodiment makes a video recording in the optical mirror slip group, and the f-number (f-number) of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.80.
First embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=36.0 (degree).
First embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 110 is V1, and the abbe number of these second lens 120 is V2, and its relational expression is:
V1-V2＝32.5。
First embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 130 is V3, and the abbe number of the 4th lens 140 is V4, and its relational expression is:
V3-V4＝32.4。
First embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 120 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝1.42。
First embodiment makes a video recording in the optical mirror slip group, these second lens 120 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝5.79。
First embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 110 is f1, and its relational expression is:
f/f1＝1.14。
First embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 150 is f5, and its relational expression is:
f/f5＝0.05。
First embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 110 is f1, and the focal length of the 3rd lens 130 is f3, and its relational expression is:
f1/f3＝0.78。
First embodiment makes a video recording in the optical mirror slip group, and these first lens 110 are T12 with the spacing distance of these second lens 120 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝7.77。
First embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip 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 these first lens 110 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝1.02。
First embodiment makes a video recording in the optical mirror slip group, and the thing side surface 111 of these first lens 110 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.80。
The detailed optical data of first embodiment is shown in Figure 13 table one, and its aspherical surface data is shown in Figure 14 table two A and table two B, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as half of maximum visual angle.
Second embodiment:
The optical system synoptic diagram of second embodiment of the invention sees also Fig. 3, and the aberration curve of second embodiment sees also Fig. 4.The shooting optical mirror slip group of second embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 210 of the positive refracting power of one tool, its thing side surface 211 and be all convex surface as side surface 212, its material is a plastic cement, the thing side surface 211 of these first lens 210 and be all aspheric surface as side surface 212;
Second lens 220 of the negative refracting power of one tool, its thing side surface 221 and be all concave surface as side surface 222, its material is a plastic cement, the thing side surface 221 of these 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 a 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 a 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 a 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 be provided with at least one point of inflexion as side surface 252;
Wherein, this shooting optical mirror slip group is provided with an aperture 200 in addition and places between an object and this first lens 210;
Other includes an infrared ray filtering optical filter 260 and places looking like between a side surface 252 and the imaging surface 270 of the 5th lens 250, and this infrared ray filtering optical filter 260 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equational expression of the second embodiment aspheric curve is as the form of first embodiment.
Second embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=3.94 (millimeter).
Second embodiment makes a video recording in the optical mirror slip group, and the f-number of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.80.
Second embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=35.7 (degree).
Second embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 210 is V1, and the abbe number of these second lens 220 is V2, and its relational expression is:
V1-V2＝32.5。
Second embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 230 is V3, and the abbe number of the 4th lens 240 is V4, and its relational expression is:
V3-V4＝32.4。
Second embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 220 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝1.43。
Second embodiment makes a video recording in the optical mirror slip group, these second lens 220 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝5.97。
Second embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 210 is f1, and its relational expression is:
f/f1＝1.16。
Second embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 250 is f5, and its relational expression is:
f/f5＝-0.16。
Second embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 210 is f1, and the focal length of the 3rd lens 230 is f3, and its relational expression is:
f1/f3＝0.84。
Second embodiment makes a video recording in the optical mirror slip group, and these first lens 210 are T12 with the spacing distance of these second lens 220 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝7.46。
Second embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip 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 these first lens 210 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝1.02。
Second embodiment makes a video recording in the optical mirror slip group, and the thing side surface 211 of these first lens 210 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.80。
The detailed optical data of second embodiment is shown in Figure 15 table three, and its aspherical surface data is shown in Figure 16 table four A and table four B, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), 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. 5, and the aberration curve of the 3rd embodiment sees also Fig. 6.The shooting optical mirror slip group of the 3rd embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 310 of the positive refracting power of one tool, its thing side surface 311 and be all convex surface as side surface 312, its material is a plastic cement, the thing side surface 311 of these first lens 310 and be all aspheric surface as side surface 312;
Second lens 320 of the negative refracting power of one tool, its thing side surface 321 and be all concave surface as side surface 322, its material is a plastic cement, the thing side surface 321 of these 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 a plastic cement, the thing side surface 331 of the 3rd lens 330 and be all aspheric surface as side surface 332;
The 4th lens 340 of the negative refracting power of one tool, its thing side surface 341 be that convex surface and picture side surface 342 are concave surface, and its material is a plastic cement, the thing side surface 341 of the 4th lens 340 and be all aspheric surface as side surface 342; And
The 5th lens 350 of the 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 a 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 be provided with at least one point of inflexion as side surface 352;
Wherein, this shooting optical mirror slip group is provided with an aperture 300 in addition and places between these first lens 310 and this second lens 320;
Other includes an infrared ray filtering optical filter 360 and places looking like between a side surface 352 and the imaging surface 370 of the 5th lens 350, and this infrared ray filtering optical filter 360 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equational expression of the 3rd embodiment aspheric curve is as the form of first embodiment.
The 3rd embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=4.23 (millimeter).
The 3rd embodiment makes a video recording in the optical mirror slip group, and the f-number of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.78.
The 3rd embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=33.8 (degree).
The 3rd embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 310 is V1, and the abbe number of these second lens 320 is V2, and its relational expression is:
V1-V2＝32.5。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 330 is V3, and the abbe number of the 4th lens 340 is V4, and its relational expression is:
V3-V4＝23.8。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 320 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝0.80。
The 3rd embodiment makes a video recording in the optical mirror slip group, these second lens 320 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝1.15。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 310 is f1, and its relational expression is:
f/f1＝1.33。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 350 is f5, and its relational expression is:
f/f5＝-0.06。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 310 is f1, and the focal length of the 3rd lens 330 is f3, and its relational expression is:
f1/f3＝0.65。
The 3rd embodiment makes a video recording in the optical mirror slip group, and these first lens 310 are T12 with the spacing distance of these second lens 320 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝3.66。
The 3rd embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip 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 these first lens 310 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝0.90。
The 3rd embodiment makes a video recording in the optical mirror slip group, and the thing side surface 311 of these first lens 310 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.82。
The detailed optical data of the 3rd embodiment is shown in Figure 17 table five, and its aspherical surface data is shown in Figure 18 table six A and table six B, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), 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. 7, and the aberration curve of the 4th embodiment sees also Fig. 8.The shooting optical mirror slip group of the 4th embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 410 of the positive refracting power of one tool, its thing side surface 411 and be all convex surface as side surface 412, its material is a plastic cement, the thing side surface 411 of these first lens 410 and be all aspheric surface as side surface 412;
Second lens 420 of the negative refracting power of one tool, its thing side surface 421 and be all concave surface as side surface 422, its material is a plastic cement, the thing side surface 421 of these 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 a plastic cement, the thing side surface 431 of the 3rd lens 430 and be all aspheric surface as side surface 432;
The 4th lens 440 of the negative refracting power of one tool, its thing side surface 441 be that convex surface and picture side surface 442 are concave surface, and its material is a 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 a 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 be provided with at least one point of inflexion as side surface 452;
Wherein, this shooting optical mirror slip group is provided with an aperture 400 in addition and places between an object and this first lens 410;
Other includes an infrared ray filtering optical filter 460 and places looking like between a side surface 452 and the imaging surface 470 of the 5th lens 450, and this infrared ray filtering optical filter 460 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equational expression of the 4th embodiment aspheric curve is as the form of first embodiment.
The 4th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=4.06 (millimeter).
The 4th embodiment makes a video recording in the optical mirror slip group, and the f-number of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.80.
The 4th embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=35.0 (degree).
The 4th embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 410 is V1, and the abbe number of these second lens 420 is V2, and its relational expression is:
V1-V2＝32.5。
The 4th embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 430 is V3, and the abbe number of the 4th lens 440 is V4, and its relational expression is:
V3-V4＝-0.1。
The 4th embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 420 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝0.74。
The 4th embodiment makes a video recording in the optical mirror slip group, these second lens 420 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝0.97。
The 4th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 410 is f1, and its relational expression is:
f/f1＝1.64。
The 4th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 450 is f5, and its relational expression is:
f/f5＝0.21。
The 4th embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 410 is f1, and the focal length of the 3rd lens 430 is f3, and its relational expression is:
f1/f3＝0.62。
The 4th embodiment makes a video recording in the optical mirror slip group, and these first lens 410 are T12 with the spacing distance of these second lens 420 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝1.95。
The 4th embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip 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 these first lens 410 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝0.99。
The 4th embodiment makes a video recording in the optical mirror slip group, and the thing side surface 411 of these first lens 410 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.72。
The detailed optical data of the 4th embodiment is shown in Figure 19 table seven, and its aspherical surface data is shown in Figure 20 table eight, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), 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. 9, and the aberration curve of the 5th embodiment sees also Figure 10.The shooting optical mirror slip group of the 5th embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 510 of the positive refracting power of one tool, its thing side surface 511 and be all convex surface as side surface 512, its material is a plastic cement, the thing side surface 511 of these first lens 510 and be all aspheric surface as side surface 512;
Second lens 520 of the negative refracting power of one tool, its thing side surface 521 and be all concave surface as side surface 522, its material is a plastic cement, the thing side surface 521 of these 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 a plastic cement, the thing side surface 531 of the 3rd lens 530 and be all aspheric surface as side surface 532;
The 4th lens 540 of the negative refracting power of one tool, its thing side surface 541 be that convex surface and picture side surface 542 are concave surface, and its material is a plastic cement, the thing side surface 541 of the 4th lens 540 and be all aspheric surface as side surface 542; And
The 5th lens 550 of the 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 a 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 be provided with at least one point of inflexion as side surface 552;
Wherein, this shooting optical mirror slip group is provided with an aperture 500 in addition and places between an object and this first lens 510;
Other includes an infrared ray filtering optical filter 560 and places looking like between side surface 552 and the imaging surface 570 of the 5th lens 550, and this infrared ray filtering optical filter 560 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equational expression of the 5th embodiment aspheric curve is as the form of first embodiment.
The 5th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=4.06 (millimeter).
The 5th embodiment makes a video recording in the optical mirror slip group, and the f-number of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.80.
The 5th embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=35.0 (degree).
The 5th embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 510 is V1, and the abbe number of these second lens 520 is V2, and its relational expression is:
V1-V2＝32.5。
The 5th embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 530 is V3, and the abbe number of the 4th lens 540 is V4, and its relational expression is:
V3-V4＝-0.1。
The 5th embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 520 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝0.74。
The 5th embodiment makes a video recording in the optical mirror slip group, these second lens 520 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝0.94。
The 5th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 510 is f1, and its relational expression is:
f/f1＝1.75。
The 5th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 550 is f5, and its relational expression is:
f/f5＝-0.52。
The 5th embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 510 is f1, and the focal length of the 3rd lens 530 is f3, and its relational expression is:
f1/f3＝0.32。
The 5th embodiment makes a video recording in the optical mirror slip group, and these first lens 510 are T12 with the spacing distance of these second lens 520 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝1.23。
The 5th embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip 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 these first lens 510 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝0.97。
The 5th embodiment makes a video recording in the optical mirror slip group, and the thing side surface 511 of these first lens 510 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.58。
The detailed optical data of the 5th embodiment is shown in Figure 21 table nine, and its aspherical surface data is shown in Figure 22 table ten, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as half of maximum visual angle.
The 6th embodiment:
The optical system synoptic diagram of sixth embodiment of the invention sees also Figure 11, and the aberration curve of the 6th embodiment sees also Figure 12.The shooting optical mirror slip group of the 6th embodiment mainly is made of five pieces of lens, is extremely comprised in regular turn as side by the thing side:
First lens 610 of the positive refracting power of one tool, its thing side surface 611 are that convex surface and picture side surface 612 are concave surface, and its material is a plastic cement, the thing side surface 611 of these first lens 610 and be all aspheric surface as side surface 612;
Second lens 620 of the negative refracting power of one tool, its thing side surface 621 and be all concave surface as side surface 622, its material is a plastic cement, the thing side surface 621 of these second lens 620 and be all aspheric surface as side surface 622;
The 3rd lens 630 of the positive refracting power of one tool, its thing side surface 631 are that concave surface and picture side surface 632 are convex surface, and its material is a plastic cement, the thing side surface 631 of the 3rd lens 630 and be all aspheric surface as side surface 632;
The 4th lens 640 of the negative refracting power of one tool, its thing side surface 641 be that convex surface and picture side surface 642 are concave surface, and its material is a plastic cement, the thing side surface 641 of the 4th lens 640 and be all aspheric surface as side surface 642; And
The 5th lens 650 of the positive refracting power of one tool, its thing side surface 651 is that convex surface and picture side surface 652 are concave surface, its material is a plastic cement, the thing side surface 651 of the 5th lens 650 and be all aspheric surface as side surface 652, and the 5th lens 650 be provided with at least one point of inflexion as side surface 652;
Wherein, this shooting optical mirror slip group is provided with an aperture 600 in addition and places between these first lens 610 and this second lens 620;
Other includes an infrared ray filtering optical filter 660 and places looking like between a side surface 652 and the imaging surface 670 of the 5th lens 650, and this infrared ray filtering optical filter 660 does not influence the focal length of the aforementioned shooting optical mirror slip of the present invention group.
The equational expression of the 6th embodiment aspheric curve is as the form of first embodiment.
The 6th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is: f=4.22 (millimeter).
The 6th embodiment makes a video recording in the optical mirror slip group, and the f-number of whole shooting optical mirror slip group is Fno, and its relational expression is: Fno=2.78.
The 6th embodiment makes a video recording in the optical mirror slip group, and half of maximum visual angle is HFOV in this shooting optical mirror slip group, and its relational expression is: HFOV=33.7 (degree).
The 6th embodiment makes a video recording in the optical mirror slip group, and the abbe number of these first lens 610 is V1, and the abbe number of these second lens 620 is V2, and its relational expression is:
V1-V2＝32.5。
The 6th embodiment makes a video recording in the optical mirror slip group, and the abbe number of the 3rd lens 630 is V3, and the abbe number of the 4th lens 640 is V4, and its relational expression is:
V3-V4＝-0.1。
The 6th embodiment makes a video recording in the optical mirror slip group, and the thickness of these second lens 620 on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(CT2/f)*10＝0.71。
The 6th embodiment makes a video recording in the optical mirror slip group, these second lens 620 be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, its relational expression is:
R4/f＝1.05。
The 6th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of these first lens 610 is f1, and its relational expression is:
f/f1＝1.19。
The 6th embodiment makes a video recording in the optical mirror slip group, and the focal length of whole shooting optical mirror slip group is f, and the focal length of the 5th lens 650 is f5, and its relational expression is:
f/f5＝0.12。
The 6th embodiment makes a video recording in the optical mirror slip group, and the focal length of these first lens 610 is f1, and the focal length of the 3rd lens 630 is f3, and its relational expression is:
f1/f3＝1.08。
The 6th embodiment makes a video recording in the optical mirror slip group, and these first lens 610 are T12 with the spacing distance of these second lens 620 on optical axis, and the focal length of whole shooting optical mirror slip group is f, and its relational expression is:
(T12/f)*100＝5.47。
The 6th embodiment makes a video recording in the optical mirror slip group, this shooting optical mirror slip group is provided with a sense electronics optical element at these imaging surface 670 places for the object imaging thereon in addition, this aperture 600 to the distance of this sense electronics optical element on optical axis is SL, the thing side surface 611 of these first lens 610 is TTL to the distance of this sense electronics optical element on optical axis, and its relational expression is:
SL/TTL＝0.86。
The 6th embodiment makes a video recording in the optical mirror slip group, and the thing side surface 611 of these first lens 610 to the distance of this sense electronics optical element on optical axis is TTL, and half of this sense electronics optical element effective pixel area diagonal angle line length is ImgH, and its relational expression is:
TTL/ImgH＝1.86。
The detailed optical data of the 6th embodiment is shown in Figure 23 table ten one, and its aspherical surface data is shown in Figure 24 table ten two, and wherein the unit of radius-of-curvature, thickness and focal length is a millimeter (mm), and HFOV is defined as half of maximum visual angle.
Table one to table ten two (corresponding Figure 13 to Figure 24) is depicted as the make a video recording different numerical value change tables of optical mirror slip group embodiment of the present invention, yet even use different numerical value, the product of same structure must belong to protection category of the present invention.So above explanation is described and accompanying drawing only as exemplary, non-in order to limit claim of the present invention.Table ten three (corresponding Figure 25) is the numeric data of the corresponding correlationship formula of the present invention of each embodiment.
Above-described specific embodiment; purpose of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the above only is specific embodiments of the invention; and be not intended to limit the scope of the invention; within the spirit and principles in the present invention all, any modification of being made, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (25)

1. a shooting optical mirror slip group is characterized in that, described shooting optical mirror slip group by the thing side to comprising in regular turn as side:
First lens of the positive refracting power of one tool, its thing side surface is a convex surface;
Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface;
The 3rd lens of the positive refracting power of one tool;
The 4th lens of the negative refracting power of one tool, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of described the 4th lens be aspheric surface as at least one surface in the side surface; And
One the 5th lens, its thing side surface are convex surface and are concave surface as side surface, described the 5th lens be provided with at least one point of inflexion as side surface, and described the 5th lens are plastic cement material;
Wherein, described shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and described aperture is arranged between object and described the 3rd lens; The tool refracting power lens of the most close thing side are described first lens in the described shooting optical mirror slip group, and tool refracting power lens are no more than six in the described shooting optical mirror slip group;
Wherein, described second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, the abbe number of described first lens is V1, the abbe number of described second lens is V2, described aperture to the distance of described sense electronics optical element on optical axis is SL, and the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
23.0＜V1-V2＜45.0；
0.65＜SL/TTL＜1.10。
2. shooting optical mirror slip group as claimed in claim 1 is characterized in that, the thing side surface of described the 3rd lens is concave surface and is convex surface as side surface.
3. shooting optical mirror slip group as claimed in claim 2 is characterized in that, the focal length of whole shooting optical mirror slip group is f, and the focal length of described first lens is f1, satisfies the following relationship formula:
0.80＜f/f1＜2.00。
4. shooting optical mirror slip group as claimed in claim 3 is characterized in that, the focal length of whole shooting optical mirror slip group is f, and the focal length of described first lens is f1, satisfies the following relationship formula:
1.32＜f/f1＜2.00。
5. shooting optical mirror slip group as claimed in claim 2 is characterized in that the abbe number of described first lens is V1, and the abbe number of described second lens is V2, satisfies the following relationship formula:
31.0＜V1-V2＜42.0。
6. shooting optical mirror slip group as claimed in claim 3 is characterized in that, tool refracting power lens only are five in the described shooting optical mirror slip group.
7. shooting optical mirror slip 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 the following relationship formula:
0.25＜f1/f3＜1.20。
8. shooting optical mirror slip group as claimed in claim 6 is characterized in that, described second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.6＜R4/f＜2.0。
9. shooting optical mirror slip group as claimed in claim 6, it is characterized in that, described aperture is arranged between described first lens and described second lens, described aperture to the distance of described sense electronics optical element on optical axis is SL, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.78＜SL/TTL＜0.93。
10. shooting optical mirror slip group as claimed in claim 9 is characterized in that, the thickness of described second lens on optical axis is CT2, and the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.3＜(CT2/f)*10＜1.1。
11. shooting optical mirror slip group as claimed in claim 7 is characterized in that, described first lens and the spacing distance of described second lens on optical axis are T12, and the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.5＜(T12/f)*100＜9.5。
12. shooting optical mirror slip group as claimed in claim 7 is characterized in that, the focal length of whole shooting optical mirror slip group is f, and the focal length of described the 5th lens is f5, satisfies the following relationship formula:
-0.35＜f/f5＜0.35。
13. shooting optical mirror slip group as claimed in claim 6 is characterized in that, described the 5th lens tool is born refracting power.
14. shooting optical mirror slip group as claimed in claim 2 is characterized in that, described first lens and the spacing distance of described second lens on optical axis are T12, and the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.5＜(T12/f)*100＜5.5。
15. shooting optical mirror slip group as claimed in claim 2, it is characterized in that, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, and half of described sense electronics optical element effective pixel area diagonal angle line length is ImgH, satisfies the following relationship formula:
TTL/ImgH＜1.95。
16. a shooting optical mirror slip group is characterized in that described shooting optical mirror slip group is extremely comprised as side in regular turn by the thing side:
First lens of the positive refracting power of one tool, its thing side surface is a convex surface;
Second lens of the negative refracting power of one tool, its thing side surface and be all concave surface as side surface;
The 3rd lens of the positive refracting power of one tool, its thing side surface are concave surface and are convex surface as side surface;
The 4th lens of the negative refracting power of one tool, its thing side surface be aspheric surface as at least one surface in the side surface; And
One the 5th lens, its thing side surface are convex surface and are concave surface as side surface, and the thing side surface of described the 5th lens and be all aspheric surface as side surface;
Wherein, described shooting optical mirror slip group is provided with an aperture in addition and a sense electronics optical element supplies the object imaging, and described aperture is arranged between object and the 3rd lens; Tool refracting power lens only are five in the described shooting optical mirror slip group;
Wherein, described second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, described first lens and the spacing distance of described second lens on optical axis are T12, described aperture to the distance of described sense electronics optical element on optical axis is SL, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.3＜R4/f＜30.0；
0.5＜(T12/f)*100＜15.0；
0.65＜SL/TTL＜1.10。
17. shooting optical mirror slip group as claimed in claim 16 is characterized in that, the thing side surface of described the 4th lens is convex surface and is concave surface as side surface.
18. shooting optical mirror slip group as claimed in claim 17 is characterized in that, described the 5th lens be provided with at least one point of inflexion as side surface, and described the 5th lens are plastic cement material.
19. shooting optical mirror slip group as claimed in claim 18 is characterized in that, described second lens be R4 as the side surface radius-of-curvature, the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.5＜R4/f＜10.0。
20. shooting optical mirror slip group as claimed in claim 19, it is characterized in that, described aperture is arranged between described first lens and described second lens, described aperture to the distance of described sense electronics optical element on optical axis is SL, the thing side surface of described first lens to the distance of described sense electronics optical element on optical axis is TTL, satisfies the following relationship formula:
0.78＜SL/TTL＜0.93。
21. shooting optical mirror slip group as claimed in claim 18 is characterized in that, described first lens and the spacing distance of described second lens on optical axis are T12, and the focal length of whole shooting optical mirror slip group is f, satisfies the following relationship formula:
0.5＜(T12/f)*100＜9.5。
22. shooting optical mirror slip group as claimed in claim 21 is characterized in that the abbe number of described first lens is V1, the abbe number of described second lens is V2, satisfies the following relationship formula:
31.0＜V1-V2＜42.0。
23. shooting optical mirror slip group as claimed in claim 18 is characterized in that, the focal length of whole shooting optical mirror slip group is f, and the focal length of described first lens is f1, satisfies the following relationship formula:
1.32＜f/f1＜2.00。
24. shooting optical mirror slip group as claimed in claim 23 is characterized in that, the focal length of whole shooting optical mirror slip group is f, and the focal length of described the 5th lens is f5, satisfies the following relationship formula:
-0.35＜f/f5＜0.35。
25. shooting optical mirror slip group as claimed in claim 18 is characterized in that the abbe number of described the 3rd lens is V3, the abbe number of described the 4th lens is V4, satisfies the following relationship formula:
23.0＜V3-V4＜45.0。
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CN103246050A (en) * 2012-02-08 2013-08-14 大立光电股份有限公司 Image capturing optical lens assembly
CN103837964A (en) * 2012-11-20 2014-06-04 大立光电股份有限公司 Image capturing lens assembly
US9110270B2 (en) 2012-03-29 2015-08-18 Kantatsu Co., Ltd. Image pickup lens
CN105988198A (en) * 2015-02-17 2016-10-05 大立光电股份有限公司 Image pickup lens assembly, image pickup device and electronic device
CN105988184A (en) * 2015-02-02 2016-10-05 大立光电股份有限公司 Camera lens group, image capture device and electronic device
CN106154486A (en) * 2014-09-22 2016-11-23 三星电机株式会社 Camera lens module
CN107121763A (en) * 2014-07-04 2017-09-01 大立光电股份有限公司 Photographing optical system and image capturing device
WO2021052359A1 (en) * 2019-09-17 2021-03-25 华为技术有限公司 Lens group, related device and related system
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CN103246050B (en) * 2012-02-08 2015-08-19 大立光电股份有限公司 Image capturing optical lens assembly
CN103246050A (en) * 2012-02-08 2013-08-14 大立光电股份有限公司 Image capturing optical lens assembly
US9638898B2 (en) 2012-03-29 2017-05-02 Kantatsu Co., Ltd. Image pickup lens
US9110270B2 (en) 2012-03-29 2015-08-18 Kantatsu Co., Ltd. Image pickup lens
CN103837964A (en) * 2012-11-20 2014-06-04 大立光电股份有限公司 Image capturing lens assembly
CN103837964B (en) * 2012-11-20 2016-01-13 大立光电股份有限公司 Image capturing lens assembly
CN107121763A (en) * 2014-07-04 2017-09-01 大立光电股份有限公司 Photographing optical system and image capturing device
CN107121763B (en) * 2014-07-04 2019-09-13 大立光电股份有限公司 Photographing optical system and image capturing device
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CN105988198A (en) * 2015-02-17 2016-10-05 大立光电股份有限公司 Image pickup lens assembly, image pickup device and electronic device
US11435554B2 (en) 2017-10-24 2022-09-06 Zhejiang Sunny Optical Co., Ltd. Imaging lens assembly
WO2021052359A1 (en) * 2019-09-17 2021-03-25 华为技术有限公司 Lens group, related device and related system

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