CN107797254A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN107797254A CN107797254A CN201711151253.9A CN201711151253A CN107797254A CN 107797254 A CN107797254 A CN 107797254A CN 201711151253 A CN201711151253 A CN 201711151253A CN 107797254 A CN107797254 A CN 107797254A
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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
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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
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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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
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
The present invention relates to field of optical lens, discloses a kind of camera optical camera lens, and the camera optical camera lens sequentially includes from thing side to image side：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, and the 7th lens；First lens are plastic material, and the second lens are glass material, and the 3rd lens are glass material, and the 4th lens are plastic material, and the 5th lens are plastic material, and the 6th lens are plastic material, and the 7th lens are plastic material；And meet following relationship：1.51≤f1/f≤2.5,1.7≤n2≤2.2,‑2≤f3/f4≤0.5；1≤(R13+R14)/(R13‑R14)≤10；1.7≤n3≤2.2.While the camera optical camera lens can obtain high imaging performance, low TTL is obtained.
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 optical camera lens of the camera device such as monitor, PC camera lenses.
Background technology
In recent years, with the rise of smart mobile phone, the demand for minimizing phtographic lens increasingly improves, 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.To obtain preferable image quality, the camera lens that tradition is equipped on mobile phone camera uses three-chip type or four more
Formula lens arrangement.Also, with the development of technology and increasing for users on diversity, sensor devices elemental area not
It is disconnected to reduce, and in the case that requirement of the system to image quality improves constantly, five chips, six chips, seven chip lens arrangements by
Gradually appear among lens design.The wide-angle that there is outstanding optical signature, ultra-thin and chromatic aberation fully to make corrections for active demand is taken the photograph
As camera lens.
The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of camera optical camera lens, high imaging performance can obtained
While, meet the requirement of ultrathin and wide angle.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, the shooting light
Camera lens is learned, is sequentially included from thing side to image side：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th
Lens, and the 7th lens；
First lens are plastic material, and second lens are glass material, and the 3rd lens are glass material,
4th lens are plastic material, and the 5th lens are plastic material, and the 6th lens are plastic material, the described 7th
Lens are plastic material；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, and the focal length of the 3rd lens is
F3, the focal length of the 4th lens is f4, and the refractive index of second lens is n2, and the refractive index of the 3rd lens is n3,
The radius of curvature of the 7th lens thing side is R13, and the radius of curvature of the 7th lens image side surface is R14, is met following
Relational expression：
1.51≤f1/f≤2.5,
1.7≤n2≤2.2,
-2≤f3/f4≤0.5；
1≤(R13+R14)/(R13-R14)≤10；
1.7≤n3≤2.2。
Embodiment of the present invention in terms of existing technologies, by the configuration mode of said lens, using in focal length, folding
Penetrate rate, the optics overall length of camera optical camera lens, have in the data of thickness and radius of curvature on axle particular kind of relationship lens it is common
Coordinate, camera optical camera lens is met the requirement of ultrathin and wide angle while high imaging performance is obtained.
Preferably, first lens have positive refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Concave surface；The radius of curvature of the first lens thing side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It is d1 to state thickness on the axle of the first lens, and meets following relationship：-7.23≤(R1+R2)/(R1-R2)≤-1.92；0.27
≤d1≤0.83。
Preferably, second lens have a negative refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of second lens is f2, the song of the second lens thing side
Rate radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3 on the axle of second lens, and is met
Following relationship：-6.27≤f2/f≤-1.77；2.61≤(R3+R4)/(R3-R4)≤8.63；0.1≤d3≤0.29.
Preferably, the 3rd lens have positive refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Convex surface；The focal length of the camera optical camera lens is f, and the focal length of the 3rd lens is f3, the song of the 3rd lens thing side
Rate radius is R5, and the radius of curvature of the 3rd lens image side surface is R6, and thickness is d5 on the axle of the 3rd lens, and is met
Following relationship：0.49≤f3/f≤1.88；0.03≤(R5+R6)/(R5-R6)≤0.11；0.12≤d5≤0.41.
Preferably, the 4th lens have positive refracting power, its thing side in it is paraxial be concave surface, its image side surface is in paraxial
Convex surface；The focal length of the camera optical camera lens is f, and the focal length of the 4th lens is f4, the song of the 4th lens thing side
Rate radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7 on the axle of the 4th lens, and is met
Following relationship：4.66≤f4/f≤17.4；1.55≤(R7+R8)/(R7-R8)≤6.15；0.27≤d7≤0.84.
Preferably, the 5th lens have positive refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of the 5th lens is f5, the song of the 5th lens thing side
Rate radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9 on the axle of the 5th lens, and full
Sufficient following relationship：1.55≤f5/f≤5.06；-7.91≤(R9+R10)/(R9-R10)≤-2.35；0.07≤d9≤0.22.
Preferably, the 6th lens have positive refracting power, its thing side in it is paraxial be concave surface, its image side surface is in paraxial
Convex surface；The focal length of the camera optical camera lens is f, and the focal length of the 6th lens is f6, the song of the 6th lens thing side
Rate radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11 on the axle of the 6th lens, and
Meet following relationship：2.09≤f6/f≤7.91；2≤(R11+R12)/(R11-R12)≤7.42；0.09≤d11≤0.26.
Preferably, the 7th lens have a negative refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Concave surface；The focal length of the camera optical camera lens is f, and the focal length of the 7th lens is f7, thickness on the axle of the 7th lens
For d13, and meet following relationship：-1.4≤f7/f≤-0.44；0.27≤d13≤0.81.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 5.12 millimeters.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 2.06.
The beneficial effects of the present invention are:Outstanding optical characteristics is had according to the camera optical camera lens of the present invention, it is ultra-thin,
Wide-angle and chromatic aberation fully makes corrections, be particularly suitable for use in the cell-phone camera mirror being made up of photographing elements such as CCD, CMOS of high pixel
Head assembly and WEB pick-up lens.
Brief description of the drawings
Fig. 1 is the structural representation of the camera optical camera lens of first embodiment of the invention；
Fig. 2 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 1；
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 camera optical camera lens of second embodiment of the invention；
Fig. 6 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 5；
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；
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, each reality below in conjunction with accompanying drawing to the present invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present 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 embodiment, can also realize claimed technical solution of the invention.
(first embodiment)
Refer to the attached drawing, the invention provides a kind of camera optical camera lens 10.Fig. 1 show first embodiment of the invention
Camera optical camera lens 10, the camera optical camera lens 10 include seven lens.Specifically, the camera optical camera lens 10, by thing side
Sequentially include to image side：Aperture S1, the first lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5,
6th lens L6 and the 7th lens L7.Optical filtering piece (filter) GF etc. is may be provided between 7th lens L7 and image planes Si
Optical element.
First lens L1 is plastic material, and the second lens L2 is glass material, and the 3rd lens L3 is glass material, and the 4th is saturating
Mirror L4 is plastic material, and the 5th lens L5 is plastic material, and the 6th lens L6 is plastic material, and the 7th lens L7 is plastics material
Matter.
The focal length for defining overall camera optical camera lens 10 is f, and the focal length of the first lens L1 is f1,1.51≤f1/f≤
2.5, it is specified that the first lens L1 positive refracting power.During more than lower limit setting, develop although being advantageous to camera lens to ultrathin,
The positive refracting power for being the first lens L1 can be too strong, it is difficult to make corrections aberration the problems such as, while be unfavorable for camera lens to wide angle develop.Phase
When instead, more than upper limit setting, the positive refracting power of the first lens can become weak, and camera lens is difficult to develop to ultrathin.Preferably, it is full
Foot 1.55≤f1/f≤2.
The refractive index for defining the second lens L2 is n2,1.7≤n2≤2.2, it is specified that the second lens L2 refractive index,
It is more beneficial for developing to ultrathin within this range, while beneficial to amendment aberration.Preferably, 1.8≤n2≤2 are met.
The focal length for defining the 3rd lens L3 is f3, and the focal length of the 4th lens L4 is f4, -2≤f3/f4≤0.5,
The 3rd lens L3 focal length f3 and the 4th lens L4 focal length f4 ratio are defined, can effectively reduce optical imaging lens group
Susceptibility, further lift image quality.Preferably, 0≤f3/f4≤0.4 is met.
The radius of curvature for defining the 7th lens L7 things side is R13, the curvature half of the 7th lens L7 image side surfaces
Footpath is R14, and 1≤(R13+R14)/(R13-R14)≤10 are, it is specified that the 7th lens L7 shape, when outside scope, with to super
Thin wide angle development, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections.Preferably, meet 2≤(R13+R14)/(R13-R14)≤
5。
The refractive index of the 3rd lens L3 is n3, and 1.7≤n3≤2.2 are, it is specified that the 3rd lens L3 refractive index, favorably
In realizing ultrathin.Preferably, 1.8≤n3≤2.1 are met.
When the focal length of camera optical camera lens 10 of the present invention, the focal length of each lens, the refractive index of associated lens, shooting light
Learn the optics overall length of camera lens, when thickness and radius of curvature meet above-mentioned relation formula on axle, can have videography optical lens first 10
High-performance, and meet low TTL design requirement.
In present embodiment, the first lens L1 thing side is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is positive refracting power.
The radius of curvature R 1 of first lens L1 things side, the radius of curvature R 2 of the first lens L1 image side surfaces, meets following pass
It is formula：- 7.23≤(R1+R2)/(R1-R2)≤- 1.92, rationally control the shape of the first lens so that the first lens can have
Effect ground correction system spherical aberration；Preferably, -4.52≤(R1+R2)/(R1-R2)≤- 2.4.
Thickness is d1 on first lens L1 axle, meets following relationship：0.27≤d1≤0.83, it is advantageously implemented ultra-thin
Change.Preferably, 0.42≤d1≤0.66.
In present embodiment, the second lens L2 thing side is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of overall camera optical camera lens 10 is f, the second lens L2 focal length f2, meets following relationship：-6.27≤
F2/f≤- 1.77, by by the control of the second lens L2 negative power in zone of reasonableness, with rationally and effectively balance by with
The curvature of field amount of negative spherical aberration and system caused by first lens L1 of positive light coke.Preferably, -3.92≤f2/f≤- 2.21.
The radius of curvature R 3 of second lens L2 things side, the radius of curvature R 4 of the second lens L2 image side surfaces, meets following pass
It is formula：2.61≤(R3+R4)/(R3-R4)≤8.63 are, it is specified that the second lens L2 shape, when outside scope, with camera lens to
Ultra-thin wide angle development, it is difficult to the axle that makes corrections colouring Aberration Problem.Preferably, 4.18≤(R3+R4)/(R3-R4)≤6.9.
Thickness is d3 on second lens L2 axle, meets following relationship：0.1≤d3≤0.29, it is advantageously implemented ultra-thin
Change.Preferably, 0.16≤d3≤0.24.
In present embodiment, the 3rd lens L3 thing side is convex surface in paraxial place, and image side surface is convex surface in paraxial place, tool
There is positive refracting power.
The focal length of overall camera optical camera lens 10 is f, the 3rd lens L3 focal length f3, and meets following relationship：0.49
≤ f3/f≤1.88, be advantageous to the ability that system obtains the good balance curvature of field, effectively to be lifted as matter.Preferably, 0.79
≤f3/f≤1.5。
The radius of curvature R 5 of 3rd lens L3 things side, the radius of curvature R 6 of the 3rd lens L3 image side surfaces, meets following pass
It is formula：0.03≤(R5+R6)/(R5-R6)≤0.11, the 3rd lens L3 shape can be effectively controlled, is advantageous to the 3rd lens L3
Shaping, and avoid causing to be molded the generation of bad and stress because the 3rd lens L3 surface curvature is excessive.Preferably, 0.05≤
(R5+R6)/(R5-R6)≤0.09。
Thickness is d5 on 3rd lens L3 axle, meets following relationship：0.12≤d5≤0.41, it is advantageously implemented ultra-thin
Change.Preferably, 0.2≤d5≤0.33.
In present embodiment, the 4th lens L4 thing side in it is paraxial be concave surface, image side surface is convex surface in paraxial place, is had
Positive refracting power.
The focal length of overall camera optical camera lens 10 is f, the 4th lens L4 focal length f4, meets following relationship：4.66≤f4/
F≤17.4, pass through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitiveness.Preferably,
7.46≤f4/f≤13.92。
The radius of curvature R 7 of 4th lens L4 things side, the radius of curvature R 8 of the 4th lens L4 image side surfaces, meets following pass
It is formula：1.55≤(R7+R8)/(R7-R8)≤6.15, it is specified that be the 4th lens L4 shape, when outside scope, with ultra-thin
The development of wide angle, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections.Preferably, 2.47≤(R7+R8)/(R7-R8)≤4.92.
Thickness is d7 on 4th lens L4 axle, meets following relationship：0.27≤d7≤0.84, it is advantageously implemented ultra-thin
Change.Preferably, 0.43≤d7≤0.67.
In present embodiment, the 5th lens L5 thing side is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is positive refracting power.
The focal length of overall camera optical camera lens 10 is f, the 5th lens L5 focal length f5, meets following relationship：1.55≤f5/
F≤5.06, the light angle of pick-up lens is gentle can effectively to be caused to limiting for the 5th lens L5, reduces tolerance sensitivities.
Preferably, 2.48≤f5/f≤4.04.
The radius of curvature R 9 of 5th lens L5 things side, the radius of curvature R 10 of the 5th lens L5 image side surfaces, meets following pass
It is formula：- 7.91≤(R9+R10)/(R9-R10)≤- 2.35, it is specified that be the 5th lens L5 shape, when outside condition and range,
As ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections.Preferably, -4.94≤(R9+R10)/(R9-
R10)≤-2.93。
Thickness is d9 on 5th lens L5 axle, meets following relationship：0.07≤d9≤0.22, it is advantageously implemented ultra-thin
Change.Preferably, 0.12≤d9≤0.18.
In present embodiment, the 6th lens L6 thing side is concave surface in paraxial place, and image side surface is convex surface in paraxial place, tool
There is positive refracting power.
The focal length of overall camera optical camera lens 10 is f, the 6th lens L6 focal length f6, meets following relationship：2.09≤f6/
F≤7.91, pass through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitiveness.Preferably,
3.34≤f6/f≤6.33。
The radius of curvature R 11 of 6th lens L6 things side, the radius of curvature R 12 of the 6th lens L6 image side surfaces, meets following
Relational expression：2≤(R11+R12)/(R11-R12)≤7.42, it is specified that be the 6th lens L6 shape, when outside condition and range,
As ultra-thin wide angle develops, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections.Preferably, 3.2≤(R11+R12)/(R11-
R12)≤5.93。
Thickness is d11 on 6th lens L6 axle, meets following relationship：0.09≤d11≤0.26, it is advantageously implemented super
Thinning.Preferably, 0.14≤d11≤0.2.
In present embodiment, the 7th lens L7 thing side is convex surface in paraxial place, and image side surface is concave surface in paraxial place, tool
There is negative refracting power.
The focal length of overall camera optical camera lens 10 is f, the 7th lens L7 focal length f7, meets following relationship：-1.4≤f7/
F≤- 0.44, passes through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitiveness.It is preferred that
, -0.87≤f7/f≤- 0.56.
Thickness is d13 on 7th lens L7 axle, meets following relationship：0.27≤d13≤0.81, it is advantageously implemented super
Thinning.Preferably, 0.43≤d13≤0.65.
In present embodiment, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 5.12 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 4.89.
In present embodiment, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.06.Large aperture, imaging performance are good.
Preferably, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.02.
It is so designed that, enables to the optics overall length TTL of overall camera optical camera lens 10 to shorten as far as possible, maintain miniaturization
Characteristic.
The camera optical camera lens 10 of the present invention will be illustrated with example below.The described following institute of symbol in each example
Show.The unit of distance, radius and center thickness is mm.
TTL:Optical length (distance on the 1st lens L1 thing side to the axle of imaging surface)；
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, join lower described.
Shown below according to first embodiment of the invention camera optical camera lens 10 design data, focal length, distance,
The unit of radius and center thickness is mm.
Table 1, table 2 show the design data of the camera optical camera lens 10 of first embodiment of the invention.
【Table 1】
Wherein, the implication of each symbol is as follows.
S1:Aperture；
R:Radius of curvature centered on when the radius of curvature of optical surface, lens；
R1:The radius of curvature of first lens L1 thing side；
R2:The radius of curvature of first lens L1 image side surface；
R3:The radius of curvature of second lens L2 thing side；
R4:The radius of curvature of second lens L2 image side surface；
R5:The radius of curvature of 3rd lens L3 thing side；
R6:The radius of curvature of 3rd lens L3 image side surface；
R7:The radius of curvature of 4th lens L4 thing side；
R8:The radius of curvature of 4th lens L4 image side surface；
R9:The radius of curvature of 5th lens L5 thing side；
R10:The radius of curvature of 5th lens L5 image side surface；
R11:The radius of curvature of 6th lens L6 thing side；
R12:The radius of curvature of 6th lens L6 image side surface；
R13:The radius of curvature of 7th lens L7 thing side；
R14:The radius of curvature of 7th lens L7 image side surface；
R15:The radius of curvature of optical filtering piece GF thing side；
R16:The radius of curvature of optical filtering piece GF image side surface；
d:Distance on axle on the axle of lens between thickness and lens；
d0：Aperture S1 is to distance on the axle of the first lens L1 thing side；
d1：Thickness on first lens L1 axle；
d2：First lens L1 image side surface is to distance on the axle of the second lens L2 thing side；
d3：Thickness on second lens L2 axle；
d4：Second lens L2 image side surface is to distance on the axle of the 3rd lens L3 thing side；
d5：Thickness on 3rd lens L3 axle；
d6：3rd lens L3 image side surface is to distance on the axle of the 4th lens L4 thing side；
d7：Thickness on 4th lens L4 axle；
d8：4th lens L4 image side surface is to distance on the axle of the 5th lens L5 thing side；
d9：Thickness on 5th lens L5 axle；
d10：5th lens L5 image side surface is to distance on the axle of the 6th lens L6 thing side；
d11：Thickness on 6th lens L6 axle；
d12：6th lens L6 image side surface is to distance on the axle of the 7th lens L7 thing side；
d13：Thickness on 7th lens L7 axle；
d14：7th lens L7 image side surface is to distance on the axle of optical filtering piece GF thing side；
d15：Thickness on optical filtering piece GF axle；
d16：Optical filtering piece GF image side surface is to distance on the axle of image planes；
nd:The refractive index of d lines；
nd1:The refractive index of first lens L1 d lines；
nd2:The refractive index of second lens L2 d lines；
nd3:The refractive index of 3rd lens L3 d lines；
nd4:The refractive index of 4th lens L4 d lines；
nd5:The refractive index of 5th lens L5 d lines；
nd6：The refractive index of 6th lens L6 d lines；
nd7：The refractive index of 7th lens L7 d lines；
ndg:The refractive index of optical filtering piece GF d lines；
vd:Abbe number；
v1：First lens L1 Abbe number；
v2：Second lens L2 Abbe number；
v3：3rd lens L3 Abbe number；
v4：4th lens L4 Abbe number；
v5：5th lens L5 Abbe number；
v6：6th lens L6 Abbe number；
v7：7th lens L7 Abbe number；
vg：Optical filtering piece GF Abbe number.
Table 2 shows the aspherical surface data of each lens in the camera optical camera lens 10 of first embodiment of the invention.
【Table 2】
Wherein, k is circular cone coefficient, and A4, A6, A8, A10, A12, A14, A16 are asphericity coefficients.
IH:Image height
Y=(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+
A16x16(1)
For convenience, each lens face is aspherical using aspherical shown in above-mentioned formula (1).But this hair
The bright aspherical polynomial form for being not limited to the formula (1) expression.
Table 3, table 4 show the point of inflexion of each lens and stationary point in the camera optical camera lens 10 of first embodiment of the invention
Design data.Wherein, R1, R2 represent the first lens L1 thing side and image side surface respectively, and R3, R4 represent the second lens L2 respectively
Thing side and image side surface, R5, R6 represent the 3rd lens L3 thing side and image side surface respectively, it is saturating that R7, R8 represent the 4th respectively
Mirror L4 thing side and image side surface, R9, R10 represent the 5th lens L5 thing side and image side surface respectively, and R11, R12 are represented respectively
6th lens L6 thing side and image side surface, R13, R14 represent the 7th lens L7 thing side and image side surface respectively." the 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 10." stay
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 3】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| R1 | 0 | |||
| R2 | 0 | |||
| R3 | 1 | 0.405 | ||
| R4 | 2 | 0.795 | 0.915 | |
| R5 | 2 | 0.365 | 0.915 | |
| R6 | 1 | 0.935 | ||
| R7 | 1 | 0.825 | ||
| R8 | 1 | 1.115 | ||
| R9 | 1 | 0.345 | ||
| R10 | 1 | 0.225 | ||
| R11 | 0 | |||
| R12 | 3 | 0.405 | 0.815 | 1.565 |
| R13 | 2 | 0.085 | 1.255 | |
| R14 | 2 | 0.435 | 2.085 |
【Table 4】
Fig. 2, Fig. 3 respectively illustrate shooting light of light of the wavelength for 486nm, 588nm and 656nm Jing Guo first embodiment
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 10.Fig. 4 then shows that the light that wavelength is 588nm is real by first
The curvature of field after the camera optical camera lens 10 of mode and distortion schematic diagram are applied, Fig. 4 curvature of field S is the curvature of field in sagitta of arc direction, and T is meridian
The curvature of field in direction.
The table 9 occurred afterwards shows in each example 1,2 in various numerical value and conditional the value corresponding to defined parameter.
As shown in table 9, first embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.876mm, and full filed image height is
3.261mm, the angle of visual field of diagonal are 81.44 °, wide-angle, ultra-thin, and on its axle, the outer chromatic aberation of axle fully makes corrections, and have
Outstanding optical signature.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol implication is identical with first embodiment, below only
List difference.
Table 5, table 6 show the design data of the camera optical camera lens 20 of second embodiment of the invention.
【Table 5】
Table 6 shows the aspherical surface data of each lens in the camera optical camera lens 20 of second embodiment of the invention.
【Table 6】
Table 7, table 8 show the point of inflexion of each lens and stationary point in the camera optical camera lens 20 of second embodiment of the invention
Design data.
【Table 7】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 0 | ||
| R2 | 0 | ||
| R3 | 2 | 0.445 | 0.895 |
| R4 | 2 | 0.755 | 0.895 |
| R5 | 1 | 0.385 | |
| R6 | 0 | ||
| R7 | 1 | 0.695 | |
| R8 | 1 | 1.095 | |
| R9 | 1 | 0.335 | |
| R10 | 1 | 0.235 | |
| R11 | 0 | ||
| R12 | 2 | 0.405 | 0.815 |
| R13 | 2 | 0.135 | 1.285 |
| R14 | 2 | 0.445 | 2.015 |
【Table 8】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 0 | |
| R3 | 0 | |
| R4 | 0 | |
| R5 | 1 | 0.615 |
| R6 | 0 | |
| R7 | 1 | 0.895 |
| R8 | 0 | |
| R9 | 1 | 0.595 |
| R10 | 1 | 0.415 |
| R11 | 0 | |
| R12 | 0 | |
| R13 | 1 | 0.225 |
| R14 | 1 | 0.975 |
Fig. 6, Fig. 7 respectively illustrate shooting light of light of the wavelength for 486nm, 588nm and 656nm Jing Guo second embodiment
Learn axial aberration and ratio chromatism, schematic diagram after camera lens 20.Fig. 8 then shows that the light that wavelength is 588nm is real by second
Apply the curvature of field after the camera optical camera lens 20 of mode and distortion schematic diagram.
As shown in table 9, second embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.891mm, and full filed image height is
3.261mm, the angle of visual field of diagonal are 80.72 °, wide-angle, ultra-thin, and on its axle, the outer chromatic aberation of axle fully makes corrections, and have
Outstanding optical signature.
【Table 9】
| Parameter and conditional | Embodiment 1 | Embodiment 2 |
| f | 3.753 | 3.782 |
| f1 | 5.896 | 7.450 |
| f2 | -11.764 | -10.043 |
| f3 | 4.692 | 3.743 |
| f4 | 43.525 | 35.263 |
| f5 | 11.617 | 12.750 |
| f6 | 15.682 | 19.952 |
| f7 | -2.501 | -2.647 |
| f3/f4 | 0.108 | 0.106 |
| (R1+R2)/(R1-R2) | -2.883 | -3.615 |
| (R3+R4)/(R3-R4) | 5.229 | 5.753 |
| (R5+R6)/(R5-R6) | 0.066 | 0.073 |
| (R7+R8)/(R7-R8) | 4.098 | 3.092 |
| (R9+R10)/(R9-R10) | -3.519 | -3.955 |
| (R11+R12)/(R11-R12) | 4.005 | 4.944 |
| (R13+R14)/(R13-R14) | 1.070 | 1.194 |
| f1/f | 1.571 | 1.970 |
| f2/f | -3.135 | -2.655 |
| f3/f | 1.250 | 0.990 |
| f4/f | 11.598 | 9.323 |
| f5/f | 3.096 | 3.371 |
| f6/f | 4.179 | 5.275 |
| f7/f | -0.667 | -0.700 |
| d1 | 0.531 | 0.552 |
| d3 | 0.196 | 0.196 |
| d5 | 0.273 | 0.246 |
| d7 | 0.539 | 0.558 |
| d9 | 0.149 | 0.149 |
| d11 | 0.170 | 0.170 |
| d13 | 0.540 | 0.534 |
| Fno | 2.000 | 2.000 |
| TTL | 4.575 | 4.659 |
| d5/TTL | 0.060 | 0.053 |
| n1 | 1.5435 | 1.5435 |
| n2 | 1.7841 | 2.0100 |
| n3 | 1.9192 | 2.0770 |
| n4 | 1.5435 | 1.5435 |
| n5 | 1.6355 | 1.6355 |
| n6 | 1.8470 | 1.8470 |
| n7 | 1.7914 | 1.7914 |
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific embodiment party of the present invention
Formula, and in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and model of the present invention
Enclose.
Claims (10)
1. a kind of camera optical camera lens, it is characterised in that the camera optical camera lens, sequentially included from thing side to image side：First
Lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, and the 7th lens；
First lens are plastic material, and second lens are glass material, and the 3rd lens are glass material, described
4th lens are plastic material, and the 5th lens are plastic material, and the 6th lens are plastic material, the 7th lens
For plastic material；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, and the focal length of the 3rd lens is f3,
The focal length of 4th lens is f4, and the refractive index of second lens is n2, and the refractive index of the 3rd lens is n3, described
The radius of curvature of 7th lens thing side is R13, and the radius of curvature of the 7th lens image side surface is R14, meets following relationship
Formula：
1.51≤f1/f≤2.5,
1.7≤n2≤2.2,
-2≤f3/f4≤0.5；
1≤(R13+R14)/(R13-R14)≤10；
1.7≤n3≤2.2。
2. camera optical camera lens according to claim 1, it is characterised in that first lens have positive refracting power, its
Thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface；
The radius of curvature of the first lens thing side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It is d1 to state thickness on the axle of the first lens, and meets following relationship：
-7.23≤(R1+R2)/(R1-R2)≤-1.92；
0.27≤d1≤0.83。
3. camera optical camera lens according to claim 1, it is characterised in that second lens have negative refracting power, its
Thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of second lens is f2, the curvature of the second lens thing side
Radius is R3, and the radius of curvature of the second lens image side surface is R4, and thickness is d3 on the axle of second lens, and under meeting
Row relational expression：
-6.27≤f2/f≤-1.77；
2.61≤(R3+R4)/(R3-R4)≤8.63；
0.1≤d3≤0.29。
4. camera optical camera lens according to claim 1, it is characterised in that the 3rd lens have positive refracting power, its
Thing side in it is paraxial be convex surface, its image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal length of the 3rd lens is f3, the curvature of the 3rd lens thing side
Radius is R5, and the radius of curvature of the 3rd lens image side surface is R6, and thickness is d5 on the axle of the 3rd lens, and under satisfaction
Row relational expression：
0.49≤f3/f≤1.88；
0.03≤(R5+R6)/(R5-R6)≤0.11；
0.12≤d5≤0.41。
5. camera optical camera lens according to claim 1, it is characterised in that the 4th lens have positive refracting power, its
Thing side in it is paraxial be concave surface, its image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal length of the 4th lens is f4, the curvature of the 4th lens thing side
Radius is R7, and the radius of curvature of the 4th lens image side surface is R8, and thickness is d7 on the axle of the 4th lens, and under satisfaction
Row relational expression：
4.66≤f4/f≤17.4；
1.55≤(R7+R8)/(R7-R8)≤6.15；
0.27≤d7≤0.84。
6. camera optical camera lens according to claim 1, it is characterised in that the 5th lens have positive refracting power, its
Thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of the 5th lens is f5, the curvature of the 5th lens thing side
Radius is R9, and the radius of curvature of the 5th lens image side surface is R10, and thickness is d9 on the axle of the 5th lens, and is met
Following relationship：
1.55≤f5/f≤5.06；
-7.91≤(R9+R10)/(R9-R10)≤-2.35；
0.07≤d9≤0.22。
7. camera optical camera lens according to claim 1, it is characterised in that the 6th lens have positive refracting power, its
Thing side in it is paraxial be concave surface, its image side surface in it is paraxial be convex surface；
The focal length of the camera optical camera lens is f, and the focal length of the 6th lens is f6, the curvature of the 6th lens thing side
Radius is R11, and the radius of curvature of the 6th lens image side surface is R12, and thickness is d11 on the axle of the 6th lens, and full
Sufficient following relationship：
2.09≤f6/f≤7.91；
2≤(R11+R12)/(R11-R12)≤7.42；
0.09≤d11≤0.26。
8. camera optical camera lens according to claim 1, it is characterised in that the 7th lens have negative refracting power, its
Thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal length of the 7th lens is f7, and thickness is on the axle of the 7th lens
D13, and meet following relationship：
-1.4≤f7/f≤-0.44；
0.27≤d13≤0.81。
9. camera optical camera lens according to claim 1, it is characterised in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 5.12 millimeters.
10. camera optical camera lens according to claim 1, it is characterised in that the aperture F numbers of the camera optical camera lens are small
In or equal to 2.06.
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| JP2017251258A JP6362201B1 (en) | 2017-11-18 | 2017-12-27 | Imaging optical lens |
| US15/860,289 US10488624B2 (en) | 2017-11-18 | 2018-01-02 | Camera optical lens |
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