CN106873138A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN106873138A CN106873138A CN201710123009.5A CN201710123009A CN106873138A CN 106873138 A CN106873138 A CN 106873138A CN 201710123009 A CN201710123009 A CN 201710123009A CN 106873138 A CN106873138 A CN 106873138A
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- camera optical
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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
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
Abstract
The present invention relates to field of optical lens, a kind of camera optical camera lens is disclosed, sequentially included by thing side to image side：Aperture, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens；Meet following relationship：0.75<f1/f<0.82,‑2.0<f2/f<‑1.9,‑7<f3/f<‑6,0.54<f4/f<0.56,‑0.48<f5/f<‑0.45；11<v2/n2<14,1.15<n2/n5<1.25,0.03<d3/TTL<0.035,0.17<d3/d7<0.19；13<(r3‑r6)/(r3+r6)<20.The camera optical camera lens that the present invention is provided can take into account pixel high and big image height while having the advantages that good image quality.
Description
Technical field
It is more particularly to a kind of to be applied to the hand-held terminals such as smart mobile phone, digital camera the present invention relates to field of optical lens
Equipment, and the camera head such as monitor, PC camera lenses camera optical camera lens.
Background technology
In recent years, with the rise of smart mobile phone, the demand for minimizing phtographic lens is increasingly improved, and general phtographic lens
Sensor devices nothing more than being that photosensitive coupled apparatus (Charge Coupled Device, CCD) or Complimentary Metal-Oxide are partly led
Two kinds of body device (Complementary Metal-OxideSemicondctor Sensor, CMOS Sensor), and due to half
Conductor manufacturing process technology progresses greatly so that the Pixel Dimensions of sensor devices reduce, along with electronic product is good with function now
And compact external form is development trend, therefore, the miniaturization pick-up lens for possessing good image quality becomes at present
The main flow of in the market.
It is to obtain preferably image quality, tradition is equipped on more than the camera lens of mobile phone camera using three-chip type or quadruple lenses
Structure.However, with the development of technology and increasing for users on diversity, constantly being contracted in the elemental area of sensor devices
It is small, and in the case of requirement continuous improvement of the system to image quality, five chip lens arrangements occur gradually over lens design and work as
In, although five common chip lens can correct optical system major part optical aberration, but cannot be with good
The advantage of pixel high and big image height is taken into account while image quality.
The content of the invention
Regarding to the issue above, it is an object of the invention to provide a kind of camera optical camera lens, it is with good imaging product
The advantage of pixel high and big image height is taken into account while matter.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, by thing side to picture
Side sequentially includes：One aperture, one has the first lens of positive refracting power, and one has the second lens of negative refracting power, and one has just
3rd lens of refracting power, one has the 4th lens of positive refracting power, and one has the 5th lens of negative refracting power；
The focal length of overall camera optical camera lens is that f, optics overall length are TTL, and the focal length of first lens is f1, described the
The focal length of two lens is f2, refractive index is n2, Abbe number is v2, and the focal length of the 3rd lens is f3, the 4th lens
Focal length is f4, and the focal length of the 5th lens is f5, refractive index is n5, and the thing center side radius of curvature of second lens is
R3, the image side surface center curvature radius of the 3rd lens are r6, and thickness is d3 on the axle of second lens, and the described 4th is saturating
Thickness is d7 on the axle of mirror, meets following relationship：
0.75<f1/f<0.82,-2.0<f2/f<-1.9,-7<f3/f<-6,0.54<f4/f<0.56,-0.48<f5/f<-
0.45；
11<v2/n2<14,1.15<n2/n5<1.25,0.03<d3/TTL<0.035,0.17<d3/d7<0.19；
13<(r3-r6)/(r3+r6)<20。
Embodiment of the present invention in terms of existing technologies, by the configuration mode of said lens, not only may be used
Amendment optical system major part optical aberration, moreover it is possible to while taking into account the advantage of pixel high and big image height.
In addition, the focal length f1 of first lens, focal length f2, the focal length f3 of the 3rd lens of second lens,
The focal length f4 of the 4th lens, the focal length f5 of the 5th lens, meets following relationship：
2.9<f1<3.1, -8<f2<- 7, -26<f3<- 24,2.0<f4<2.2, -1.85<f5<-1.75.
In addition, the refractive index n1 of first lens, the refractive index n2 of second lens, the refraction of the 3rd lens
Rate n3, the refractive index n4 of the 4th lens, and the refractive index n5 of the 5th lens meet following relationship：
1.57<n1<1.59,1.8<n2<1.9,1.65<n3<1.68,1.53<n4<1.55,1.52<n5<1.55.
In addition, the Abbe number v1 of first lens, the Abbe number v2 of second lens, the Abbe of the 3rd lens
Number v3, the Abbe number v4 of the 4th lens, the Abbe number v5 of the 5th lens meet following relationship：
57<v1<62,22<v2<25,20<v3<22,55<v4<57,55<v5<58。
In addition, the optics total length of camera optical camera lens is less than or equal to 4.42 millimeters.
In addition, the F-number of camera optical camera lens is less than or equal to 2.0.
In addition, thickness is d3 on the axle of second lens, thickness is d5 on the axle of the 3rd lens, meets following pass
It is formula：0.6 ＜ d3/d5 ＜ 0.7.
In addition, the material of first lens and the second lens is glass, the 3rd lens, the 4th lens and the 5th are saturating
The material of mirror is plastics.
Brief description of the drawings
Fig. 1 is the structural representation of the first embodiment of camera optical camera lens of the invention；
Fig. 2 is that the axle colouring differential of camera optical camera lens shown in Fig. 1 is intended to；
Fig. 3 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 4 is the curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 5 is the structural representation of the second embodiment of camera optical camera lens of the invention；
Fig. 6 is that the axle colouring differential of camera optical camera lens shown in Fig. 5 is intended to；
Fig. 7 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 5；
Fig. 8 is the curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 5.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each implementation method of the invention,
In order that reader more fully understands the present invention and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following implementation method, it is also possible to realize claimed technical solution of the invention.
Refer to the attached drawing, the invention provides a kind of camera optical camera lens.Fig. 1 show the shooting of first embodiment of the invention
Optical lens 10, the camera optical camera lens 10 includes five lens.Specifically, the camera optical camera lens 10, by thing side to picture
Side sequentially includes：Aperture St, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4 and the 5th lens L5.
Be can be set between 5th lens L5 and image planes Si has the optical elements such as optical filter GF.
First lens L1 has positive refracting power, and it can effectively reduce system length, and it is convex surface that its thing side is outwardly,
Aperture St is arranged between object and the first lens L1.Second lens L2 has negative refracting power, in the present embodiment, the second lens
The image side surface of L2 is concave surface.3rd lens L3 has negative refracting power, in the present embodiment, the thing side of the 3rd lens L3 is concave surface,
Image side surface is convex surface.4th lens L4 has positive refracting power, and in the present embodiment, the thing side of the 4th lens L4 is concave surface, image side
Face is convex surface.5th lens L5 has negative refracting power, and it can effectively reduce the system curvature of field, and in the present embodiment, the 5th is saturating
The thing side of mirror L5 is concave surface, image side surface is concave surface.
Here, the focal length of the overall camera optical camera lens 10 of definition be f, optics overall length be TTL, Jiao of the first lens L1
Away from being f1, the focal length of the second lens L2 is f2, refractive index is that n2, Abbe number are v2, and the focal length of the 3rd lens L3 is
The focal length of f3, the 4th lens L4 is f4, and the focal length of the 5th lens L5 is f5, refractive index is n5, second lens
The thing center side radius of curvature of L2 is r3, and the image side surface center curvature radius of the 3rd lens L3 are r6, and described second is saturating
On the axle of mirror L2 thickness be d3, on the axle of the 4th lens L4 thickness be d7, described f, f1, f2, f3, f4, f5, v2, n2,
N5, r3, r6, d3 and d7 meet following relationship：
0.75<f1/f<0.82,-2.0<f2/f<-1.9,-7<f3/f<-6,0.54<f4/f<0.56,-0.48<f5/f<-
0.45；
11<v2/n2<14,1.15<n2/n5<1.25,0.03<d3/TTL<0.035,0.17<d3/d7<0.19；
13<(r3-r6)/(r3+r6)<20。
Thickness, curvature half on focal length, the focal length of each lens, refractive index, axle when camera optical camera lens 10 of the present invention
When footpath and Abbe number meet above-mentioned relation formula, can control/adjust the refracting power size of each lens to configure, in amendment optics
While system major part optical aberration, the design requirement of pixel high and big image height, and the camera optical camera lens 10 are met
It is object lens of large relative aperture optical system, the imaging performance under low-light (level) environment can be effectively improved.
Specifically, in the embodiment of the present invention, the focal length f1 of first lens, the focal length f2 of second lens are described
The focal length f3 of the 3rd lens, the focal length f4 of the 4th lens, the focal length f5 of the 5th lens may be designed so that under meeting
Row relational expression：2.9<f1<3.1, -8<f2<- 7, -26<f3<- 24,2.0<f4<2.2, -1.85<f5<- 1.75, unit：Millimeter
(mm).It is so designed that, enables to the optics overall length TTL of overall camera optical camera lens 10 to try one's best and shorten, maintains the spy of miniaturization
Property.
Preferably, optical full length TTL≤4.42 millimeter of the camera optical camera lens 10 of the embodiment of the present invention.So set
Meter, is more conducive to realize the Miniaturization Design of camera optical camera lens 10.In addition, thickness is d3, the 3rd lens on the axle of the second lens
Axle on thickness be d5, meet following relationship：0.6 ＜ d3/d5 ＜ 0.7.It is arranged such, the second lens and the 3rd lens can be made
With optimal thickness, be conducive to the assembling of camera optical camera lens 10.
Preferably, in the embodiment of the present invention, the F-number of camera optical camera lens is less than or equal to 2.0, so as to realize system
Large aperture design.
In camera optical camera lens 10 of the invention, the material of each lens can be glass or plastic cement, if the material of lens is glass
Glass, then can increase the free degree of optical system refracting power configuration of the present invention, if lens material is plastic cement, can effectively reduce
Production cost.
In the embodiment of the present invention, the first lens L1 and the second lens L2 is glass lens, can effectively reduce temperature to taking the photograph
As the influence of the performance of optical lens 10, the 3rd lens L3, the 4th lens L4 and the 5th lens L5 are plastic lens.
Further, in a preferred embodiment of the invention, the refractive index n1 of first lens, second lens
Refractive index n2, the refractive index n3 of the 3rd lens, the refractive index n4 of the 4th lens, and the 5th lens refraction
Rate n5 meets following relationship：1.57<n1<1.59,1.8<n2<1.9,1.65<n3<1.68,1.53<n4<1.55,1.52<n5<
1.55.It is so designed that, is conducive to lens that appropriate matching is obtained on optical material, and then the camera optical camera lens 10 can be made
Obtain preferably image quality.
It should be noted that in the embodiment of the present invention, the Abbe number v1 of first lens, the Abbe of second lens
Number v2, the Abbe number v3 of the 3rd lens, the Abbe number v4 of the 4th lens, and the 5th lens Abbe number
V5, is designed to meet following relationship：57<v1<62,22<v2<25,20<v3<22,55<v4<57,55<v5<58.So
Design, can effectively suppress Optical Chromatic phenomenon when camera optical camera lens 10 is imaged.
It is understood that the refractive index design and Abbe number design of above-mentioned each lens can be combined with each other and
Apply in the design of camera optical camera lens 10 so that the second lens L2 and the 3rd lens L3 using high index of refraction,
Low Abbe number optical material is made, and can effectively reduce camera lens aberration, greatly improves the image quality of camera optical camera lens 10.
Additionally, the surface of lens could be arranged to aspherical, the aspherical shape that can be easily fabricated to beyond sphere, obtain
More controlled variable is obtained, is used to cut down aberration, and then reduce the number that lens are used, therefore can effectively reduce the present invention and taken the photograph
As the total length of optical lens.In the embodiment of the present invention, the thing side of each lens and image side surface are aspherical.
Preferably, the point of inflexion and/or stationary point are also provided with the thing side of the lens and/or image side surface, with full
The imaging demand of sufficient high-quality, specifically can embodiment, ginseng is lower described.
Shown below the design data according to the camera optical camera lens 10 of the embodiment of the present invention 1.
Table 1, table 2 show the data of the camera optical camera lens 10 of the embodiment of the present invention 1.
【Table 1】
The implication of each symbol is as follows.
f：The focal length of camera optical camera lens 10；
f1：The focal length of the first lens L1；
f2：The focal length of the second lens L2；
f3：The focal length of the 3rd lens L3；
f4：The focal length of the 4th lens L4；
f5：The focal length of the 5th lens L5.
【Table 2】
Wherein, R1, R2 are thing side, the image side surface of the first lens L1, and R3, R4 are thing side, the image side of the second lens L2
Face, R5, R6 are thing side, the image side surface of the 3rd lens L3, and R7, R8 are thing side, the image side surface of the 4th lens L4, and R9, R10 are
Thing side, the image side surface of the 5th lens L5, R11, R12 are thing side, the image side surface of optical filter GF.The implication of other each symbols is such as
Under.
d0：Distance on the axle of the thing side of the lens of aperture St to first L1；
d1：Thickness on the axle of the first lens L1；
d2：The image side surface of the first lens L1 is to distance on the axle of the thing side of the second lens L2；
d3：Thickness on the axle of the second lens L2；
d4：The image side surface of the second lens L2 is to distance on the axle of the thing side of the 3rd lens L3；
d5：Thickness on the axle of the 3rd lens L3；
d6：The image side surface of the 3rd lens L3 is to distance on the axle of the thing side of the 4th lens L4；
d7：Thickness on the axle of the 4th lens L4；
d8：The image side surface of the 4th lens L4 is to distance on the axle of the thing side of the 5th lens L5；
d9：Thickness on the axle of the 5th lens L5；
d10：The image side surface of the 5th lens L5 is to distance on the axle of the thing side of optical filter GF；
d11：Thickness on the axle of optical filter GF；
d12：The image side surface of optical filter GF is to distance on the axle of image planes；
nd1：The refractive index of the first lens L1；
nd2：The refractive index of the second lens L2；
nd3：The refractive index of the 3rd lens L3；
nd4：The refractive index of the 4th lens L4；
nd5：The refractive index of the 5th lens L5；
ndg：The refractive index of optical filter GF；
v1：The Abbe number of the first lens L1；
v2：The Abbe number of the second lens L2；
v3：The Abbe number of the 3rd lens L3；
v4：The Abbe number of the 4th lens L4；
v5：The Abbe number of the 5th lens L5；
vg：The Abbe number of optical filter GF.
Table 3 shows the aspherical surface data of each lens in the camera optical camera lens 10 of the embodiment of the present invention 1.
【Table 3】
Table 4, table 5 show the point of inflexion and stationary point design of each lens in the camera optical camera lens 10 of the embodiment of the present invention 1
Data.Wherein, R1, R2 represent thing side and the image side surface of the first lens L1 respectively, and R3, R4 represent the thing of the second lens L2 respectively
Side and image side surface, R5, R6 represent thing side and the image side surface of the 3rd lens L3 respectively, and R7, R8 represent the 4th lens L4 respectively
Thing side and image side surface, R9, R10 represent thing side and the image side surface of the 5th lens L5 respectively." point of inflexion position " field pair
It is vertical range of the point of inflexion set by each lens surface to the optical axis of camera optical camera lens 10 to answer data." stationary point position " field
Corresponding data is vertical range of the stationary point set by each lens surface to the optical axis of camera optical camera lens 10.
【Table 4】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 1 | 0.965 | |
| R2 | 1 | 0.505 | |
| R3 | 0 | ||
| R4 | 0 | ||
| R5 | 0 | ||
| R6 | 0 | ||
| R7 | 1 | 0.945 | |
| R8 | 2 | 1.085 | 1.345 |
| R9 | 1 | 1.245 | |
| R10 | 2 | 0.565 | 2.535 |
【Table 5】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 1 | 0.825 |
| R3 | 0 | |
| R4 | 0 | |
| R5 | 0 | |
| R6 | 0 | |
| R7 | 0 | |
| R8 | 0 | |
| R9 | 1 | 2.265 |
| R10 | 1 | 1.305 |
Fig. 2, Fig. 3 respectively illustrate wavelength be 486nm, 588nm and 656nm light by embodiment 1 videography optical lens
Aberration and ratio chromatism, schematic diagram on axle after first 10.Fig. 4 then shows that wavelength is light the taking the photograph by embodiment 1 of 588nm
As the curvature of field after optical lens 10 and distortion schematic diagram.
Table 6 below lists the numerical value of each conditional of correspondence in the present embodiment according to above-mentioned condition formula.Obviously, the present embodiment
Image pickup optical system meet above-mentioned conditional.
【Table 6】
| Condition | Embodiment 1 |
| 0.75<f1/f<0.82 | 0.777373618 |
| -2.0<f2/f<-1.9 | -1.920509265 |
| -7<f3/f<-6 | -6.724834344 |
| 0.54<f4/f<0.56 | 0.551869564 |
| -0.48<f5/f<-0.45 | -0.467363333 |
| 11<v2/n2<14 | 12.88576069 |
| 1.15<n2/n5<1.25 | 1.203086467 |
| 0.03<d3/TTL<0.035 | 0.031900452 |
| 0.17<d3/d7<0.19 | 0.18240621 |
| 13<(r3-r6)/(r3+r6)<20 | 15.83726326 |
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.9mm, and full filed image height is 3.261mm, right
The angle of visual field in linea angulata direction is 80.37 °.
Second embodiment of the present invention is related to another camera optical camera lens, second embodiment and first embodiment
Roughly the same, it is differred primarily in that：In the present embodiment, refer to the attached drawing, the invention provides a kind of camera optical camera lens.
Fig. 5 show the camera optical camera lens 20 of second embodiment of the invention, and the camera optical camera lens 20 includes five lens.Specifically
, the camera optical camera lens 20 is sequentially included by thing side to image side：Aperture St, the first lens L1, the second lens L2, the 3rd
Lens L3, the 4th lens L4 and the 5th lens L5.Be can be set between 5th lens L5 and image planes Si has the optics such as optical filter GF
Element.
First lens L1 has positive refracting power, and it can effectively reduce system length, and it is convex surface that its thing side is outwardly,
Aperture St is arranged between object and the first lens L1.Second lens L2 has negative refracting power, in the present embodiment, the second lens
The image side surface of L2 is concave surface.3rd lens L3 has negative refracting power, in the present embodiment, the thing side of the 3rd lens L3 is concave surface,
Image side surface is convex surface.4th lens L4 has positive refracting power, and in the present embodiment, the thing side of the 4th lens L4 is concave surface, image side
Face is convex surface.5th lens L5 has negative refracting power, and it can effectively reduce the system curvature of field, and in the present embodiment, the 5th is saturating
The thing side of mirror L5 is concave surface, image side surface is concave surface.
Here, the focal length of the overall camera optical camera lens 20 of definition be f, optics overall length be TTL, Jiao of the first lens L1
Away from being f1, the focal length of the second lens L2 is f2, refractive index is that n2, Abbe number are v2, and the focal length of the 3rd lens L3 is
The focal length of f3, the 4th lens L4 is f4, and the focal length of the 5th lens L5 is f5, refractive index is n5, second lens
The thing flank radius of L2 is r3, and the image side curvature radius of the 3rd lens L3 are r6, the axle of the second lens L2
Upper thickness be d3, on the axle of the 4th lens L4 thickness be d7, described f, f1, f2, f3, f4, f5, v2, n2, n5, r3, r6,
D3 and d7 meet following relationship：
0.75<f1/f<0.82,-2.0<f2/f<-1.9,-7<f3/f<-6,0.54<f4/f<0.56,-0.48<f5/f<-
0.45；
11<v2/n2<14,1.15<n2/n5<1.25,0.03<d3/TTL<0.035,0.17<d3/d7<0.19；
13<(r3-r6)/(r3+r6)<20。
Thickness, curvature half on focal length, the focal length of each lens, refractive index, axle when camera optical camera lens 20 of the present invention
When footpath and Abbe number meet above-mentioned relation formula, can control/adjust the refracting power size of each lens to configure, in amendment optics
While system major part optical aberration, the design requirement of pixel high and big image height, and the camera optical camera lens 10 are met
It is object lens of large relative aperture optical system, the imaging performance under low-light (level) environment can be effectively improved.
Specifically, in the embodiment of the present invention, the focal length f1 of first lens, the focal length f2 of second lens are described
The focal length f3 of the 3rd lens, the focal length f4 of the 4th lens, the focal length f5 of the 5th lens may be designed so that under meeting
Row relational expression：2.9<f1<3.1, -8<f2<- 7, -26<f3<- 24,2.0<f4<2.2, -1.85<f5<- 1.75, unit：Millimeter
(mm).It is so designed that, enables to the optics overall length TTL of overall camera optical camera lens 20 to try one's best and shorten, maintains the spy of miniaturization
Property.
Preferably, optical full length TTL≤4.42 millimeter of the camera optical camera lens 20 of the embodiment of the present invention.So set
Meter, is more conducive to realize the Miniaturization Design of camera optical camera lens 20.In addition, thickness is d3, the 3rd lens on the axle of the second lens
Axle on thickness be d5, meet following relationship：0.6 ＜ d3/d5 ＜ 0.7.It is arranged such, the second lens and the 3rd lens can be made
With optimal thickness, be conducive to the assembling of camera optical camera lens 20.
Preferably, in the embodiment of the present invention, the F-number of camera optical camera lens is less than or equal to 2.0, so as to realize system
Large aperture design.
In camera optical camera lens 20 of the invention, the material of each lens can be glass or plastic cement, if the material of lens is glass
Glass, then can increase the free degree of optical system refracting power configuration of the present invention, if lens material is plastic cement, can effectively reduce
Production cost.
In the embodiment of the present invention, the first lens L1 and the second lens L2 is glass lens, can effectively reduce temperature to taking the photograph
As the influence of optical lens 20, the 3rd lens L3, the 4th lens L4 and the 5th lens L5 are plastic lens.
Further, in a preferred embodiment of the invention, the refractive index n1 of first lens, second lens
Refractive index n2, the refractive index n3 of the 3rd lens, the refractive index n4 of the 4th lens, and the 5th lens refraction
Rate n5 meets following relationship：1.57<n1<1.59,1.8<n2<1.9,1.65<n3<1.68,1.53<n4<1.55,1.52<n5<
1.55.It is so designed that, is conducive to lens that appropriate matching is obtained on optical material, and then the camera optical camera lens 20 can be made
Obtain preferably image quality.
It should be noted that in the embodiment of the present invention, the Abbe number v1 of first lens, the Abbe of second lens
Number v2, the Abbe number v3 of the 3rd lens, the Abbe number v4 of the 4th lens, and the 5th lens Abbe number
V5, is designed to meet following relationship：57<v1<62,22<v2<25,20<v3<22,55<v4<57,55<v5<58.So
Design, can effectively suppress Optical Chromatic phenomenon when camera optical camera lens 20 is imaged.
It is understood that the refractive index design and Abbe number design of above-mentioned each lens can be combined with each other and
Apply in the design of camera optical camera lens 20 so that the second lens L2 and the 3rd lens L3 using high index of refraction,
Low Abbe number optical material is made, and can effectively reduce camera lens aberration, greatly improves the image quality of camera optical camera lens 20.
Additionally, the surface of lens could be arranged to aspherical, the aspherical shape that can be easily fabricated to beyond sphere, obtain
More controlled variable is obtained, is used to cut down aberration, and then reduce the number that lens are used, therefore can effectively reduce the present invention and taken the photograph
As the total length of optical lens.In the embodiment of the present invention, the thing side of each lens and image side surface are aspherical.
Preferably, the point of inflexion and/or stationary point are also provided with the thing side of the lens and/or image side surface, with full
The imaging demand of sufficient high-quality, specifically can embodiment, ginseng is lower described.
Shown below the design data according to the camera optical camera lens 20 of the embodiment of the present invention 2.
Table 7, table 8 show the data of the camera optical camera lens 20 of the embodiment of the present invention 2.
【Table 7】
The implication of each symbol is as follows.
f：The focal length of camera optical camera lens 20；
f1：The focal length of the first lens L1；
f2：The focal length of the second lens L2；
f3：The focal length of the 3rd lens L3；
f4：The focal length of the 4th lens L4；
f5：The focal length of the 5th lens L5.
【Table 8】
Wherein, R1, R2 are thing side, the image side surface of the first lens L1, and R3, R4 are thing side, the image side of the second lens L2
Face, R5, R6 are thing side, the image side surface of the 3rd lens L3, and R7, R8 are thing side, the image side surface of the 4th lens L4, and R9, R10 are
Thing side, the image side surface of the 5th lens L5, R11, R12 are thing side, the image side surface of optical filter GF.The implication of other each symbols is such as
Under.
d0：Distance on the axle of the thing side of the lens of aperture St to first L1；
d1：Thickness on the axle of the first lens L1；
d2：The image side surface of the first lens L1 is to distance on the axle of the thing side of the second lens L2；
d3：Thickness on the axle of the second lens L2；
d4：The image side surface of the second lens L2 is to distance on the axle of the thing side of the 3rd lens L3；
d5：Thickness on the axle of the 3rd lens L3；
d6：The image side surface of the 3rd lens L3 is to distance on the axle of the thing side of the 4th lens L4；
d7：Thickness on the axle of the 4th lens L4；
d8：The image side surface of the 4th lens L4 is to distance on the axle of the thing side of the 5th lens L5；
d9：Thickness on the axle of the 5th lens L5；
d10：The image side surface of the 5th lens L5 is to distance on the axle of the thing side of optical filter GF；
d11：Thickness on the axle of optical filter GF；
d12：The image side surface of optical filter GF is to distance on the axle of image planes；
nd1：The refractive index of the first lens L1；
nd2：The refractive index of the second lens L2；
nd3：The refractive index of the 3rd lens L3；
nd4：The refractive index of the 4th lens L4；
nd5：The refractive index of the 5th lens L5；
ndg：The refractive index of optical filter GF；
v1：The Abbe number of the first lens L1；
v2：The Abbe number of the second lens L2；
v3：The Abbe number of the 3rd lens L3；
v4：The Abbe number of the 4th lens L4；
v5：The Abbe number of the 5th lens L5；
vg：The Abbe number of optical filter GF.
Table 9 shows the aspherical surface data of each lens in the camera optical camera lens 20 of the embodiment of the present invention 2.
【Table 9】
Table 10, table 11 show that the point of inflexion of each lens in the camera optical camera lens 20 of the embodiment of the present invention 2 and stationary point set
Count.Wherein, R1, R2 represent thing side and the image side surface of the first lens L1 respectively, and R3, R4 represent the second lens L2's respectively
Thing side and image side surface, R5, R6 represent thing side and the image side surface of the 3rd lens L3 respectively, and R7, R8 represent the 4th lens respectively
The thing side of L4 and image side surface, R9, R10 represent thing side and the image side surface of the 5th lens L5 respectively." point of inflexion position " field
Corresponding data is vertical range of the point of inflexion set by each lens surface to the optical axis of camera optical camera lens 20." stationary point position " column
Position corresponding data is vertical range of the stationary point set by each lens surface to the optical axis of camera optical camera lens 20.
【Table 10】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 1 | 0.965 | |
| R2 | 1 | 0.505 | |
| R3 | 0 | ||
| R4 | 0 | ||
| R5 | 0 | ||
| R6 | 1 | 0.945 | |
| R7 | 2 | 1.365 | 1.415 |
| R8 | 2 | 1.085 | 1.355 |
| R9 | 1 | 1.245 | |
| R10 | 2 | 0.565 | 2.545 |
【Table 11】
Fig. 6, Fig. 7 respectively illustrate wavelength be 486nm, 588nm and 656nm light by embodiment 2 videography optical lens
Aberration and ratio chromatism, schematic diagram on axle after first 20.Fig. 8 then shows that wavelength is light the taking the photograph by embodiment 2 of 588nm
As the astigmatism curvature of field after optical lens 20 and distortion schematic diagram.
Table 12 below lists the numerical value of each conditional of correspondence in the present embodiment according to above-mentioned condition formula.Obviously, this implementation
The image pickup optical system of example meets above-mentioned conditional.
【Table 12】
| Condition | Embodiment 2 |
| 0.75<f1/f<0.82 | 0.777655883 |
| -2.0<f2/f<-1.9 | -1.921522039 |
| -7<f3/f<-6 | -6.757185791 |
| 0.54<f4/f<0.56 | 0.552075678 |
| -0.48<f5/f<-0.45 | -0.467706013 |
| 11<v2/n2<14 | 12.88576069 |
| 1.15<n2/n5<1.25 | 1.203086467 |
| 0.03<d3/TTL<0.035 | 0.031900452 |
| 0.17<d3/d7<0.19 | 0.18240621 |
| 13<(r3-r6)/(r3+r6)<20 | 18.72805525 |
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.9mm, and full filed image height is 3.261mm, right
The angle of visual field in linea angulata direction is 80.38 °.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiment of the invention,
And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (8)
1. a kind of camera optical camera lens, it is characterised in that the camera optical camera lens, is sequentially included by thing side to image side：One light
Circle, one has the first lens of positive refracting power, and one has the second lens of negative refracting power, and one the with negative refracting power the 3rd is saturating
Mirror, one has the 4th lens of positive refracting power, and one has the 5th lens of negative refracting power；
The focal length of overall camera optical camera lens is f, optics overall length is TTL, and the focal length of first lens is f1, and described second is saturating
The focal length of mirror is f2, refractive index is n2, Abbe number is v2, and the focal length of the 3rd lens is f3, the focal length of the 4th lens
It is f4, the focal length of the 5th lens is f5, refractive index is n5, and the thing center side radius of curvature of second lens is r3,
The image side surface center curvature radius of the 3rd lens are r6, and thickness is d3, the 4th lens on the axle of second lens
Axle on thickness be d7, meet following relationship：
0.75<f1/f<0.82,-2.0<f2/f<-1.9,-7<f3/f<-6,0.54<f4/f<0.56,-0.48<f5/f<-0.45；
11<v2/n2<14,1.15<n2/n5<1.25,0.03<d3/TTL<0.035,0.17<d3/d7<0.19；
13<(r3-r6)/(r3+r6)<20。
2. camera optical camera lens according to claim 1, it is characterised in that the focal length f1 of first lens, described
The focal length f2, the focal length f3 of the 3rd lens, the focal length f4 of the 4th lens, the focal length of the 5th lens of two lens
F5, meets following relationship：
2.9<f1<3.1, -8<f2<- 7, -26<f3<- 24,2.0<f4<2.2, -1.85<f5<-1.75.
3. camera optical camera lens according to claim 1, it is characterised in that the refractive index n1 of first lens, it is described
Refractive index n2, the refractive index n3 of the 3rd lens, the refractive index n4 of the 4th lens of the second lens, and the described 5th
The refractive index n5 of lens meets following relationship：
1.57<n1<1.59,1.8<n2<1.9,1.65<n3<1.68,1.53<n4<1.55,1.52<n5<1.55.
4. camera optical camera lens according to claim 1, it is characterised in that the Abbe number v1 of first lens, it is described
The Abbe number v2, the Abbe number v3 of the 3rd lens, the Abbe number v4 of the 4th lens, the 5th lens of the second lens
Abbe number v5 meet following relationship：
57<v1<62,22<v2<25,20<v3<22,55<v4<57,55<v5<58。
5. camera optical camera lens according to claim 1, it is characterised in that the optics total length of camera optical camera lens is less than
Or equal to 4.42 millimeters.
6. camera optical camera lens according to claim 1, it is characterised in that the F-number of camera optical camera lens is less than or waits
In 2.0.
7. camera optical camera lens according to claim 1, it is characterised in that thickness is d3 on the axle of second lens,
Thickness is d5 on the axle of the 3rd lens, meets following relationship：0.6 ＜ d3/d5 ＜ 0.7.
8. camera optical camera lens according to claim 1, it is characterised in that the material of first lens and the second lens
It is glass, the material of the 3rd lens, the 4th lens and the 5th lens is plastics.
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| CN107741629A (en) * | 2017-11-17 | 2018-02-27 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN107765400A (en) * | 2017-11-17 | 2018-03-06 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN107765401A (en) * | 2017-11-17 | 2018-03-06 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN107765402A (en) * | 2017-11-17 | 2018-03-06 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
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| CN107741629A (en) * | 2017-11-17 | 2018-02-27 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
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| CN107797246A (en) * | 2017-11-17 | 2018-03-13 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN107884909A (en) * | 2017-11-17 | 2018-04-06 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN108008524A (en) * | 2017-11-17 | 2018-05-08 | 瑞声声学科技(深圳)有限公司 | Camera optical camera lens |
| CN107765401B (en) * | 2017-11-17 | 2020-06-09 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| CN108008524B (en) * | 2017-11-17 | 2020-06-09 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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| CN111025594A (en) * | 2019-12-30 | 2020-04-17 | 深圳市特莱斯光学有限公司 | Ultrathin undistorted lens |
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