CN105866930A - High-definition lens - Google Patents
High-definition lens Download PDFInfo
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- CN105866930A CN105866930A CN201610459290.5A CN201610459290A CN105866930A CN 105866930 A CN105866930 A CN 105866930A CN 201610459290 A CN201610459290 A CN 201610459290A CN 105866930 A CN105866930 A CN 105866930A
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- lens
- high definition
- definition camera
- camera lens
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention discloses a high-definition lens. A front lens group, a diaphragm, a rear lens group and an imaging surface are successively arranged from an object side to an image side, wherein the front lens group has the positive focal power; the rear lens group has the positive focal power; the front lens group comprises a first lens, a second lens and a third lens which are successively arranged from the object side to the image side; the focal power of the first lens and the focal power of the second lens are negative; the focal power of the third lens is positive; the rear lens group comprises a fourth lens, a fifth lens and a sixth lens which are successively arranged from the object side to the image side; the focal power of the fourth lens and the focal power of the sixth lens are positive; the focal power of the fifth lens is negative; the third lens, the fourth lens, the fifth lens and the sixth lens are all arranged as plastic aspherical lenses. The high-definition lens has the advantages of wide field angle, low cost, high definition and strong optical power.
Description
[technical field]
The present invention relates to a kind of high definition camera lens.
[background technology]
Drive a vehicle at present dispute, vehicle accident etc. generally exists, in order to ensure traffic safety, a lot
Automobile all installs on-vehicle lens additional.But the field range of on-vehicle lens typically now is limited, clear
Clear degree is poor, and logical light quantity is more weak, so present on-vehicle lens can not meet society
Demand.
Therefore, the present invention is based on the shortcoming of above-mentioned prior art existence and proposes.
[summary of the invention]
The present invention seeks to overcome the deficiencies in the prior art, it is provided that a kind of angle of visual field is big, cost
High definition camera lens low, that definition is high, logical light ability is strong.
The present invention is achieved by the following technical solutions:
A kind of high definition camera lens, it is characterised in that: it is sequentially provided with to image side from thing side: there is positive light
The frontal lens group 100 of focal power, diaphragm 200, there is the rear lens group 300 of positive light coke
With imaging surface 400, described frontal lens group 100 includes setting gradually from thing side to image side
First lens the 1, second lens 2 and the 3rd lens 3, the first described lens 1 and second are saturating
The focal power of mirror 2 is negative, and the focal power of the 3rd described lens 3 is just, described rear lens
Group 300 includes the 4th lens 4, the 5th lens 5 and set gradually from thing side to image side
Six lens 6, the 4th described lens 4 and the focal power of the 6th lens 6 are just, described
The focal power of five lens 5 is negative, the 3rd described lens the 3, the 4th lens the 4, the 5th lens
5 and the 6th lens 6 be plastic aspheric lenes.
High definition camera lens as above, it is characterised in that: the first described lens 1 are falcate
Lens, and its be convex surface towards the surface of thing side, surface towards image side be concave surface；Described
Two surfaces of the second lens 2 be concave surface；The 3rd described lens 3 are towards the table of thing side
Face is concave surface, surface towards image side is convex surface.
High definition camera lens as above, it is characterised in that: two tables of the 4th described lens 4
Face is convex surface；Two surfaces of the 5th described lens 5 are concave surface；Described the 6th is saturating
Two surfaces of mirror 6 are convex surface.
High definition camera lens as above, it is characterised in that: described frontal lens group 100 and after
Lens group 300 meets following expression: 3.14≤Fbefore≤ 9.38,2.35≤Fbefore/F≤
7.8,3.5≤Fafter≤ 5.12,61≤Fafter/ F≤4.25,0.62≤Fbefore/Fafter≤2.68；
Wherein, FbeforeFor the focal length of frontal lens group 100, FafterFor the focal length of rear lens group 300,
F is total focal length of high definition camera lens.
High definition camera lens as above, it is characterised in that: the first described lens 1, second are saturating
Mirror 2 and the 3rd lens 3 meet following expression: 1.7≤Nd1≤ 1.9,56≤Vd1≤ 65,
1.6≤Nd2≤ 1.8,50≤Vd2≤ 55,1.51≤Nd3≤ 1.55,50≤Vd3≤57；Wherein,
Nd1、Nd2、Nd3It is respectively the first lens the 1, second lens 2 and refractive index of the 3rd lens 3,
Vd1、Vd2、Vd3It is respectively the first lens the 1, second lens 2 and Abbe number of the 3rd lens 3.
High definition camera lens as above, it is characterised in that: described high definition camera lens meets such as following table
Reach formula: 0.72≤T2≤1.3,0.65≤T1/T2≤1.97,0.25≤(T1+T2+T3)/TTL
≤0.44；Wherein, to be respectively first lens the 1, second lens 2 and the 3rd saturating for T1, T2, T3
The center thickness of mirror 3, TTL is the overall length of high definition camera lens.
High definition camera lens as above, it is characterised in that: described high definition camera lens meets following public affairs
Formula: 2W >=210 °, 8.8≤TTL/F≤11.17；Wherein, 2W is the visual field of high definition camera lens
Angle, TTL is the overall length of high definition camera lens, and F is total focal length of high definition camera lens.
High definition camera lens as above, it is characterised in that: the first described lens 1 and second are saturating
Mirror 2 is glass spherical lens, is provided with optical filtering between described the 6th lens 6 and imaging surface 400
Sheet 500.
High definition camera lens as above, it is characterised in that: the 3rd described lens the 3, the 4th are saturating
The aspherical surface shape of mirror the 4, the 5th lens 5 and the 6th lens 6 meets equation below:
In formula, parameter c is the curvature corresponding to radius, and y is its unit of radial coordinate and lens
Long measure is identical, and k is circular cone whose conic coefficient；When k-factor is less than-1, lens
Face sigmoid curves is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；
When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, when k-factor etc.
In 0 time, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face shape of lens is bent
Line is oblate；a1To a8Represent the coefficient corresponding to each radial coordinate respectively.
Compared with prior art, the present invention has the following advantages:
1, the present invention is sequentially provided with the frontal lens group with positive light coke from thing side to image side
Group, diaphragm and there is the rear lens group of positive light coke.This structure allows the invention to into
The ultra wide-angle of 220 °, big relative aperture and four mega pixels are reached for maximum field of view angle
High definition camera lens, also can guarantee that still have within the temperature range of-40 DEG C～+85 DEG C higher clear
Degree, is particularly well-suited to bad environments vehicle environment.
2, the wide angle of visual field can effectively be converged into lens optical system by the present invention, and drops
The tolerance sensitivity of low lens optical system, improves the optical property of camera lens.
3, the present invention effective correction system axial chromatic aberration is excessive, and can guarantee that the first lens have
Less bore, this is more helpful to camera lens miniaturization.
4, the present invention effectively shortens camera lens overall length so that lens optical system has bigger hole
Footpath, F-number reaches F2.0.
5, the optical filter of the present invention can filter a part of light, to reduce veiling glare and hot spot etc.,
Make image color beautiful and sharp keen while there is good color reducibility；3rd lens,
Four lens, the 5th lens and the 6th lens are plastic aspheric lenes, thus realize higher dividing
Resolution can mate 4,000,000 pixel photosensor, makes the sharpness of the present invention, color reducibility
It is significantly improved.
6, the angle of visual field of the present invention is big, low cost, definition are high, logical light ability is strong, is suitable for
Popularization and application.
[accompanying drawing explanation]
Fig. 1 is schematic diagram of the present invention；
Fig. 2 is the light path schematic diagram of the present invention.
[detailed description of the invention]
The invention will be further described below in conjunction with the accompanying drawings:
A kind of high definition camera lens, is sequentially provided with to image side from thing side: have the frontal lens of positive light coke
Group 100, diaphragm 200, the rear lens group 300 with positive light coke and imaging surface 400,
The first lens 1 that described frontal lens group 100 includes setting gradually from thing side to image side,
Two lens 2 and the 3rd lens 3, the first described lens 1 and the focal power of the second lens 2 are
Negative, the focal power of the 3rd described lens 3 is just, described rear lens group 300 include from
The 4th lens the 4, the 5th lens 5 and the 6th lens 6 that thing side to image side sets gradually, described
The 4th lens 4 and the focal power of the 6th lens 6 be just, the light of the 5th described lens 5 is burnt
Degree is negative, the 3rd described lens the 3, the 4th lens the 4, the 5th lens 5 and the 6th lens 6
It is plastic aspheric lenes.This structure allows the invention to become maximum field of view angle and reaches
The high definition camera lens of the ultra wide-angle of 220 °, big relative aperture and four mega pixels, also can protect
Card still has higher definition within the temperature range of-40 DEG C～+85 DEG C, is particularly well-suited to ring
The severe vehicle environment in border.3rd lens the 3, the 4th lens the 4, the 5th lens 5 and the 6th lens
6 is plastic aspheric lenes, on the one hand reduces number of lenses and quality, and reduces cost, separately
On the one hand realize higher resolution, it is possible to coupling 4,000,000 pixel photosensor, make this
Bright sharpness, color reducibility are significantly improved.
The first described lens 1 are meniscus lens, and it is convex towards the surface of thing side
Face, surface towards image side are concave surface；Two surfaces of the second described lens 2 are concave surface；
The 3rd described lens 3 are concave surface towards the surface of thing side, surface towards image side is convex surface.
Two surfaces of the 4th described lens 4 are convex surface；The two of the 5th described lens 5
Individual surface is concave surface；Two surfaces of the 6th described lens 6 are convex surface.
The first described lens 1 and the second lens 2 are glass spherical lens, and described the 6th is saturating
Optical filter 500 it is provided with between mirror 6 and imaging surface 400.First lens 1 of high definition camera lens use
Glass lens, can effectively protect camera lens in use to prevent scratch, camera lens also can be made to resist
The change impact of adverse circumstances.Optical filter 500 can filter a part of light, with reduce veiling glare and
Hot spot etc., make image color beautiful and sharp keen while there is good color reducibility.
Described frontal lens group 100 and rear lens group 300 meet following expression: 3.14
≤Fbefore≤ 9.38,2.35≤Fbefore/ F≤7.8,3.5≤Fafter≤ 5.12,61≤Fafter/F≤
4.25,0.62≤Fbefore/Fafter≤2.68；Wherein, FbeforeFor the focal length of frontal lens group 100,
FafterFor the focal length of rear lens group 300, F is total focal length of high definition camera lens.Meet above-mentioned table
The wide angle of visual field can effectively be converged into high definition lens optical system by the focal length distribution reaching formula, and
Reduce the tolerance sensitivity of optical system, improve the relative luminance of optical system.
First described lens the 1, second lens 2 and the 3rd lens 3 meet following expression:
1.7≤Nd1≤ 1.9,56≤Vd1≤ 65,1.6≤Nd2≤ 1.8,50≤Vd2≤ 55,1.51≤
Nd3≤ 1.55,50≤Vd3≤57；Wherein, Nd1、Nd2、Nd3Be respectively the first lens 1, the
Two lens 2 and the refractive index of the 3rd lens 3, Vd1、Vd2、Vd3Respectively the first lens 1,
Second lens 2 and the Abbe number of the 3rd lens 3.First lens the 1, second lens 2 and the 3rd
The refractive index of lens 3 and Abbe number meet above-mentioned expression formula, it is possible to effectively correct high definition camera lens light
Learning system axial aberration excessive, and can guarantee that the first lens 1 have less bore, this is to camera lens
Miniaturization is more helpful.
The clear camera lens of described overall height meets following expression: 0.72≤T2≤1.3,0.65≤
T1/T2≤1.97,0.25≤(T1+T2+T3)/TTL≤0.44；Wherein, T1, T2, T3 divide
Not being the first lens the 1, second lens 2 and center thickness of the 3rd lens 3, TTL is high definition
The overall length of camera lens.Therefore, it is possible to effectively shorten camera lens overall length so that high definition lens optical system
Having bigger aperture, F-number reaches F2.0.
Described high definition camera lens meets following formula: 2W >=210 °, 8.8≤TTL/F≤11.17；
Wherein, 2W is the angle of visual field of high definition camera lens, and TTL is the overall length of high definition camera lens, and F is high definition mirror
Total focal length of head.Therefore, the optical property of high definition camera lens gets a promotion, and definition is high, logical light
Ability is strong.
The 3rd described lens the 3, the 4th lens the 4, the 5th lens 5 and the 6th lens 6 non-
Spherical face shape meets equation below:
In formula, parameter c is the curvature corresponding to radius, and y is its unit of radial coordinate and lens
Long measure is identical, and k is circular cone whose conic coefficient；When k-factor is less than-1, lens
Face sigmoid curves is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；
When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, when k-factor etc.
In 0 time, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face shape of lens is bent
Line is oblate；a1To a8Represent the coefficient corresponding to each radial coordinate respectively.
Claims (9)
1. a high definition camera lens, it is characterised in that: it is sequentially provided with to image side from thing side: tool
There are the frontal lens group (100) of positive light coke, diaphragm (200), there is the rear of positive light coke
Lens group group (300) and imaging surface (400), described frontal lens group (100) includes from thing
The first lens (1), the second lens (2) and the 3rd lens (3) that side to image side sets gradually,
Described the first lens (1) and the focal power of the second lens (2) are negative, and described the 3rd is saturating
The focal power of mirror (3) is just, described rear lens group (300) includes from thing side to image side
The 4th lens (4), the 5th lens (5) and the 6th lens (6) set gradually, described
The focal power of the 4th lens (4) and the 6th lens (6) is just, the 5th described lens (5)
Focal power be negative, described the 3rd lens (3), the 4th lens (4), the 5th lens (5)
It is plastic aspheric lenes with the 6th lens (6).
High definition camera lens the most according to claim 1, it is characterised in that: described
One lens (1) are meniscus lens, and its be convex surface towards the surface of thing side, towards picture
The surface of side is concave surface；Two surfaces of described the second lens (2) are concave surface；Described
The 3rd lens (3) be concave surface towards the surface of thing side, surface towards image side be convex surface.
High definition camera lens the most according to claim 2, it is characterised in that: described
Two surfaces of four lens (4) are convex surface；Two surfaces of the 5th described lens (5)
It is concave surface；Two surfaces of the 6th described lens (6) are convex surface.
4. according to the high definition camera lens described in claim 1 or 2 or 3, it is characterised in that:
Described frontal lens group (100) and rear lens group (300) meet following expression: 3.14
≤Fbefore≤ 9.38,2.35≤Fbefore/ F≤7.8,3.5≤Fafter≤ 5.12,61≤Fafter/F≤
4.25,0.62≤Fbefore/Fafter≤2.68；Wherein, FbeforeFor frontal lens group (100)
Focal length, FafterFor the focal length of rear lens group (300), F is total focal length of high definition camera lens.
High definition camera lens the most according to claim 4, it is characterised in that: described
One lens (1), the second lens (2) and the 3rd lens (3) meet following expression: 1.7
≤Nd1≤ 1.9,56≤Vd1≤ 65,1.6≤Nd2≤ 1.8,50≤Vd2≤ 55,1.51≤Nd3
≤ 1.55,50≤Vd3≤57；Wherein, Nd1、Nd2、Nd3Be respectively the first lens (1), the
Two lens (2) and the refractive index of the 3rd lens (3), Vd1、Vd2、Vd3It is respectively first saturating
Mirror (1), the second lens (2) and the Abbe number of the 3rd lens (3).
High definition camera lens the most according to claim 5, it is characterised in that: described height
Clear camera lens meets following expression: 0.72≤T2≤1.3,0.65≤T1/T2≤1.97, and 0.25
≤(T1+T2+T3)/TTL≤0.44；Wherein, T1, T2, T3 be respectively the first lens (1),
Second lens (2) and the center thickness of the 3rd lens (3), TTL is the overall length of high definition camera lens.
High definition camera lens the most according to claim 6, it is characterised in that: described height
Clear camera lens meets following formula: 2W >=210 °, 8.8≤TTL/F≤11.17；Wherein, 2W
For the angle of visual field of high definition camera lens, TTL is the overall length of high definition camera lens, and F is the total burnt of high definition camera lens
Away from.
High definition camera lens the most according to claim 7, it is characterised in that: described
One lens (1) and the second lens (2) are glass spherical lens, the 6th described lens (6)
And it is provided with optical filter (500) between imaging surface (400).
High definition camera lens the most according to claim 1, it is characterised in that: described
Three lens (3), the 4th lens (4), the 5th lens (5) and the aspheric of the 6th lens (6)
Face surface configuration meets equation below:
In formula, parameter c is the curvature corresponding to radius, and y is its unit of radial coordinate and lens
Long measure is identical, and k is circular cone whose conic coefficient；When k-factor is less than-1, lens
Face sigmoid curves is hyperbola, and when k-factor is equal to-1, the face sigmoid curves of lens is parabola；
When k-factor is between-1 to 0, the face sigmoid curves of lens is oval, when k-factor etc.
In 0 time, the face sigmoid curves of lens is circular, and when k-factor is more than 0, the face shape of lens is bent
Line is oblate；a1To a8Represent the coefficient corresponding to each radial coordinate respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610459290.5A CN105866930B (en) | 2016-06-21 | 2016-06-21 | A kind of high definition camera lens |
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|---|---|---|---|
| CN201610459290.5A CN105866930B (en) | 2016-06-21 | 2016-06-21 | A kind of high definition camera lens |
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| CN105866930B CN105866930B (en) | 2018-07-06 |
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| CN106842520A (en) * | 2017-03-30 | 2017-06-13 | 中山联合光电科技股份有限公司 | A kind of high definition panorama looks around optical imaging system |
| CN107121762A (en) * | 2017-06-30 | 2017-09-01 | 中山市众盈光学有限公司 | A kind of on-vehicle lens optical system |
| CN109581636A (en) * | 2017-11-07 | 2019-04-05 | 玉晶光电(厦门)有限公司 | Optical imaging lens |
| CN110297319A (en) * | 2018-03-22 | 2019-10-01 | 柯尼卡美能达株式会社 | Wide-angle lens, lens unit and filming apparatus |
| JPWO2018135269A1 (en) * | 2017-01-20 | 2019-11-07 | パナソニックＩｐマネジメント株式会社 | Single focus lens system and camera |
| WO2022047796A1 (en) * | 2020-09-07 | 2022-03-10 | 欧菲光集团股份有限公司 | Optical lens assembly, lens module, and electronic device |
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| CN105866930B (en) | 2018-07-06 |
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