CN107817578A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN107817578A CN107817578A CN201710974759.3A CN201710974759A CN107817578A CN 107817578 A CN107817578 A CN 107817578A CN 201710974759 A CN201710974759 A CN 201710974759A CN 107817578 A CN107817578 A CN 107817578A
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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
- 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
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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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- 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；And meet following relationship：‑3≤f1/f≤‑1,1.7≤n4≤2.2,1≤f6/f7≤10；2≤(R1+R2)/(R1‑R2)≤10；1.7≤n5≤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；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, the first lens thing side
Radius of curvature is R1, and the radius of curvature of the first lens image side surface is R2, and the refractive index of the 4th lens is n4, described
The focal length of six lens is f6, and the focal length of the 7th lens is f7, and the refractive index of the 5th lens is n5, meets following relationship
Formula：
-3≤f1/f≤-1,1.7≤n4≤2.2,1≤f6/f7≤10；
2≤(R1+R2)/(R1-R2)≤10；
1.7≤n5≤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 a negative refracting power, its thing side in it is paraxial be convex surface, its image side surface is in paraxial
Concave surface；Thickness is d1 on the axle of first lens, and meets following relationship：0.11≤d1≤0.37.
Preferably, second 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 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：0.48≤f2/f≤1.65；-2.89≤(R3+R4)/(R3-R4)≤-0.78；0.22≤d3≤0.82.
Preferably, the 3rd lens have positive refracting power, its thing side in it is paraxial be convex surface；The camera optical camera lens
Focal length be f, the focal length of the 3rd lens is f3, and the radius of curvature of the 3rd lens thing side is R5, and the described 3rd is saturating
The radius of curvature of mirror image side is R6, and thickness is d5 on the axle of the 3rd lens, and meets following relationship：1.22≤f3/f
≤5.06；-6.06≤(R5+R6)/(R5-R6)≤-0.30；0.16≤d5≤0.70.
Preferably, the focal length of the camera optical camera lens is f, and the focal length of the 4th lens is f4, the 4th lens
The radius of curvature of thing side is R7, and the radius of curvature of the 4th lens image side surface is R8, thickness on the axle of the 4th lens
For d7, and meet following relationship：-20.10≤f4/f≤7.18；-66.21≤(R7+R8)/(R7-R8)≤11.75；0.13
≤d7≤0.84。
Preferably, the 5th 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 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：0.25≤f5/f≤1.09；0.85≤(R9+R10)/(R9-R10)≤3.37；0.25≤d9≤0.83.
Preferably, the 6th 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 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：-14.38≤f6/f≤-0.69；0.56≤(R11+R12)/(R11-R12)≤3.27；0.18≤d11
≤0.85。
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, the song of the 7th lens thing side
Rate radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13 on the axle of the 7th lens, and
Meet following relationship：0.98≤(R13+R14)/(R13-R14)≤5.37；-1.90≤f7/f≤-0.50；0.12≤d13≤
0.45。
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 6.33 millimeters.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 2.25
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；
Fig. 9 is the structural representation of the camera optical camera lens of third embodiment of the invention；
Figure 10 is the axial aberration schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 11 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 9；
Figure 12 is the curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 9.
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 plastic material, and the 3rd lens L3 is plastic material, the 4th
Lens L4 is glass material, and the 5th lens L5 is glass material, and the 6th lens L6 is plastic material, and the 7th lens L7 is plastics material
Matter.
Here, the focal length for defining overall camera optical camera lens is f, the focal length of the first lens L1 is f1, described first
The radius of curvature of lens L1 things side is R1, and the radius of curvature of the first lens L1 image side surfaces is R2, the 4th lens L4
Refractive index be n4, the focal length of the 6th lens L6 is f6, and the focal length of the 7th lens L7 is f7, the 5th lens L5
Refractive index be n5, meet following relationship：-3≤f1/f≤-1,1.7≤n4≤2.2,1≤f6/f7≤10；2≤(R1+
R2)/(R1-R2)≤10；1.7≤n5≤2.2.
- 3≤f1/f≤- 1 is, it is specified that the first lens L1 negative refracting power.During more than upper limit setting, although being advantageous to mirror
Head develops to ultrathin, but the first lens L1 negative refracting power can be too strong, it is difficult to make corrections aberration the problems such as, while be unfavorable for mirror
Head develops to wide angle.On the contrary, when exceeding lower limit setting, the negative refracting power of the first lens can become weak, and camera lens is difficult to super
Thinning develops.Preferably, -3≤f1/f≤- 1.08 are met.
1.7≤n4≤2.2 are more beneficial for developing to ultrathin within this range, it is specified that the 4th lens L4 refractive index,
Simultaneously beneficial to amendment aberration.Preferably, 1.76≤n4≤2.06 are met.
1≤f6/f7≤10 can have, it is specified that the 6th lens L6 focal length f6 and the 7th lens L7 focal length f7 ratio
Effect reduces the susceptibility of optical imaging lens group, further lifts image quality.Preferably, meet 1.05≤f6/f7≤
9.75。
2≤(R1+R2)/(R1-R2)≤10 are, it is specified that the first lens L1 shape, when outside scope, with to ultra-thin wide
Angling develops, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections.Preferably, meet 1.73≤(R1+R2)/(R1-R2)≤
11.75。
1.7≤n5≤2.2 are more beneficial for developing to ultrathin within this range, it is specified that the 5th lens L5 refractive index,
Simultaneously beneficial to amendment aberration.Preferably, 1.71≤n5≤2 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 has a negative refracting power, its thing side in it is paraxial be convex surface, its image side surface
In it is paraxial be concave surface；Thickness d 1 meets following relationship on first lens L1 axle：0.11≤d1≤0.37, it is advantageously implemented super
Thinning.Preferably, 0.17≤d1≤0.29.
In present embodiment, the second lens L2 has 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 overall camera optical camera lens 10 is f, the second lens L2 focal lengths f2, the second lens L2 things side
Radius of curvature R 3, the radius of curvature R 4 of the second lens L2 image side surfaces, and thickness d 3 meets following pass on the second lens L2 axle
It is formula：0.48≤f2/f≤1.65, by the way that the second lens L2 positive light coke is controlled in zone of reasonableness, with reasonable effectively
Balance curvature of field amount of spherical aberration and system as caused by the first lens L1 with negative power；-2.89≤(R3+R4)/(R3-
R4)≤- 0.78, it is specified that the second lens L2 shape, when outside scope, as camera lens develops to ultra-thin wide angle, it is difficult to mend
Positive axis colouring Aberration Problem；0.22≤d3≤0.82, it is advantageously implemented ultrathin.Preferably, 0.76≤f2/f≤1.32；-
1.81≤(R3+R4)/(R3-R4)≤-0.97；0.35≤d3≤0.66.
In present embodiment, the 3rd lens L3 thing side in it is paraxial be convex surface, there is positive refracting power；Overall camera optical
The focal length of camera lens 10 is f, the 3rd lens L3 focal length f3, the radius of curvature R 5 of the 3rd lens L3 things side, the 3rd lens L3 image sides
The radius of curvature R 6 in face, and thickness d 5 meets following relationship on the 3rd lens L3 axle：1.22≤f3/f≤5.06, favorably
The ability of the good balance curvature of field is obtained in system, effectively to be lifted as matter；-6.06≤(R5+R6)/(R5-R6)≤-
0.30, the 3rd lens L3 shape can be effectively controlled, is advantageous to the 3rd lens L3 shapings, and avoid because of the 3rd lens L3 surface
Curvature is excessive and causes to be molded the generation of bad and stress；0.16≤d5≤0.70, it is advantageously implemented ultrathin.Preferably, 1.95
≤f3/f≤4.05；-3.79≤(R5+R6)/(R5-R6)≤-0.37；0.25≤d5≤0.56.
In present embodiment, the focal length of overall camera optical camera lens 10 is f, the 4th lens L4 focal length f4, the 4th lens L4
The radius of curvature R 7 of thing side, the radius of curvature R 8 of the 4th lens L4 image side surfaces, and thickness d 7 is full on the 4th lens L4 axle
Sufficient following relationship：- 20.10≤f4/f≤7.18, pass through the reasonable distribution of focal power so that system has preferably imaging product
Matter and relatively low sensitiveness；- 66.21≤(R7+R8)/(R7-R8)≤11.75, it is specified that be the 4th lens L4 shape, in model
When enclosing outer, with the development of ultra-thin wide angle, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections；0.13≤d7≤0.84, favorably
In realizing ultrathin.Preferably, -12.56≤f4/f≤5.74；-41.38≤(R7+R8)/(R7-R8)≤9.40；0.21≤d7
≤0.67。
In present embodiment, the 5th lens L5 thing side in it is paraxial be concave surface, its image side surface in it is paraxial be convex surface, have
Positive refracting power；The focal length of overall camera optical camera lens 10 is f, the 5th lens L5 focal length f5, the curvature of the 5th lens L5 things side
Radius R9, the radius of curvature R 10 of the 5th lens L5 image side surfaces, and thickness d 9 meets following relationship on the 5th lens L5 axle
Formula：0.25≤f5/f≤1.09, the light angle of pick-up lens is gentle can effectively to be caused to limiting for the 5th lens L5, is reduced
Tolerance sensitivities；0.85≤(R9+R10)/(R9-R10)≤3.37, it is specified that be the 5th lens L5 shape, in condition and range
When outer, 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；0.25≤d9≤0.83, be advantageous to reality
Existing ultrathin.Preferably, 0.40≤f5/f≤0.88；1.35≤(R9+R10)/(R9-R10)≤2.70；0.40≤d9≤
0.66。
In present embodiment, the 6th lens L6 thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface, have
Negative refracting power；The focal length of overall camera optical camera lens 10 is f, the 6th lens L6 focal length f6, the curvature of the 6th lens L6 things side
Radius R11, the radius of curvature R 12 of the 6th lens L6 image side surfaces, and thickness d 11 meets following relationship on the 6th lens L6 axle
Formula：- 14.38≤f6/f≤- 0.69, passes through the reasonable distribution of focal power so that system has preferable image quality and relatively low
Sensitiveness；0.56≤(R11+R12)/(R11-R12)≤3.27, it is specified that be the 6th lens L6 shape, in condition and range
When outer, 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；0.18≤d11≤0.85, be advantageous to reality
Existing ultrathin.Preferably, -8.99≤f6/f≤- 0.87；0.90≤(R11+R12)/(R11-R12)≤2.62；0.28≤d11
≤0.68。
In present embodiment, the 7th lens L7 thing side in it is paraxial be convex surface, its image side surface in it is paraxial be concave surface, have
Negative refracting power；The focal length of overall camera optical camera lens 10 is f, and the radius of curvature of the 7th lens L7 things side is R13, described
The radius of curvature of 7th lens image side surface is R14, the 7th lens L7 focal length f7, and thickness d 13 is full on the 7th lens L7 axle
Sufficient following relationship：0.98≤(R13+R14)/(R13-R14)≤5.37, it is specified that be the 7th lens L7 shape, in condition
When outside scope, 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；- 1.90≤f7/f≤- 0.50,
Pass through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitiveness；0.12≤d13≤
0.45, it is advantageously implemented ultrathin.Preferably, -1.19≤f7/f≤- 0.62；0.20≤d13≤0.36.
In present embodiment, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 6.33 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 6.04.
In present embodiment, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.25.Large aperture, imaging performance are good.
Preferably, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.20.
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 | 1 | 0.745 | ||
| R2 | 1 | 0.745 | ||
| R3 | 1 | 0.845 | ||
| R4 | 3 | 0.275 | 0.695 | 0.965 |
| R5 | 1 | 1.185 | ||
| R6 | 2 | 0.185 | 1.105 | |
| R7 | 2 | 0.275 | 1.215 | |
| R8 | 1 | 0.335 | ||
| R9 | 0 | |||
| R10 | 1 | 0.975 | ||
| R11 | 3 | 0.355 | 1.835 | 2.165 |
| R12 | 1 | 0.865 | ||
| R13 | 1 | 0.795 | ||
| R14 | 1 | 0.755 |
【Table 4】
| Stationary point number | Stationary point position 1 | Stationary point position 2 | Stationary point position 3 | |
| R1 | 0 | |||
| R2 | 0 | |||
| R3 | 0 | |||
| R4 | 3 | 0.505 | 0.825 | 1.025 |
| R5 | 0 | |||
| R6 | 1 | 0.305 | ||
| R7 | 1 | 0.465 | ||
| R8 | 1 | 0.595 | ||
| R9 | 0 | |||
| R10 | 1 | 1.675 | ||
| R11 | 1 | 0.615 | ||
| R12 | 1 | 1.655 | ||
| R13 | 1 | 1.715 | ||
| R14 | 1 | 2.545 |
Fig. 2, Fig. 3 respectively illustrate shooting light of light of the wavelength for 470nm, 555nm and 650nm 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 546.1nm passes through first
The curvature of field and distortion schematic diagram after the camera optical camera lens 10 of embodiment, Fig. 4 curvature of field S are the curvature of field in sagitta of arc direction, and T is son
Noon direction the curvature of field.
The table 13 occurred afterwards is shown in each example 1,2,3 in various numerical value and conditional corresponding to defined parameter
Value.
As shown in table 13, first embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.807mm, and full filed image height is
2.994m, the angle of visual field of diagonal are 74.79 °, 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】
【Table 8】
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| R1 | 0 | ||
| R2 | 0 | ||
| R3 | 0 | ||
| R4 | 2 | 0.595 | 0.915 |
| R5 | 0 | ||
| R6 | 2 | 0.675 | 0.945 |
| R7 | 0 | ||
| R8 | 0 | ||
| R9 | 0 | ||
| R10 | 1 | 1.595 | |
| R11 | 1 | 1.115 | |
| R12 | 1 | 1.665 | |
| R13 | 1 | 1.665 | |
| R14 | 1 | 2.525 |
Fig. 6, Fig. 7 respectively illustrate shooting light of light of the wavelength for 470nm, 555nm and 650nm 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 546.1nm passes through second
The curvature of field and distortion schematic diagram after the camera optical camera lens 20 of embodiment.
As shown in table 13, second embodiment meets each conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.785mm, and full filed image height is
2.994m, the angle of visual field of diagonal are 74.79 °, wide-angle, ultra-thin, and on its axle, the outer chromatic aberation of axle fully makes corrections, and have
Outstanding optical signature.
(the 3rd embodiment)
3rd embodiment and first embodiment are essentially identical, and symbol implication is identical with first embodiment, below only
List difference.
Table 9, table 10 show the design data of the camera optical camera lens 30 of third embodiment of the invention.
【Table 9】
Table 10 shows the aspherical surface data of each lens in the camera optical camera lens 30 of third embodiment of the invention.
【Table 10】
Table 11, table 12 show the point of inflexion of each lens in the camera optical camera lens 30 of third embodiment of the invention and stayed
Point design data.
【Table 11】
【Table 12】
| Stationary point number | Stationary point position 1 | |
| R1 | 1 | 0.875 |
| R2 | 0 | |
| R3 | 0 | |
| R4 | 1 | 0.575 |
| R5 | 1 | 0.865 |
| R6 | 0 | |
| R7 | 0 | |
| R8 | 0 | |
| R9 | 0 | |
| R10 | 0 | |
| R11 | 1 | 0.815 |
| R12 | 1 | 1.145 |
| R13 | 1 | 1.125 |
| R14 | 1 | 2.065 |
Figure 10, Figure 11 respectively illustrate shooting of light of the wavelength for 470nm, 555nm and 650nm Jing Guo the 3rd embodiment
Axial aberration and ratio chromatism, schematic diagram after optical lens 30.Figure 12 then shows, the light that wavelength is 546.1nm is by the
The curvature of field and distortion schematic diagram after the camera optical camera lens 30 of three embodiments.
Table 13 below lists the numerical value that each conditional is corresponded in present embodiment according to above-mentioned condition formula.Obviously, this reality
The imaging optical system for applying mode meets above-mentioned conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 1.824mm, and full filed image height is
2.994m, the angle of visual field of diagonal are 74.45 °, wide-angle, ultra-thin, and on its axle, the outer chromatic aberation of axle fully makes corrections, and have
Outstanding optical signature.
【Table 13】
| Parameter and conditional | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| f | 3.884 | 3.891 | 3.922 |
| f1 | -8.930 | -11.637 | -4.535 |
| f2 | 4.278 | 3.705 | 3.767 |
| f3 | 11.432 | 13.130 | 9.580 |
| f4 | -39.042 | -12.271 | 18.770 |
| f5 | 1.954 | 2.117 | 2.860 |
| f6 | -4.046 | -8.677 | -28.195 |
| f7 | -3.682 | -2.892 | -2.968 |
| f6/f7 | 1.099 | 3.000 | 9.500 |
| (R1+R2)/(R1-R2) | 6.000 | 9.000 | 2.895 |
| (R3+R4)/(R3-R4) | -1.168 | -1.447 | -1.287 |
| (R5+R6)/(R5-R6) | -1.225 | -3.030 | -0.444 |
| (R7+R8)/(R7-R8) | 7.836 | -2.903 | -33.107 |
| (R9+R10)/(R9-R10) | 1.691 | 1.873 | 2.248 |
| (R11+R12)/(R11-R12) | 1.119 | 2.137 | 2.183 |
| (R13+R14)/(R13-R14) | 3.579 | 2.648 | 1.953 |
| f1/f | -2.299 | -2.991 | -1.156 |
| f2/f | 1.101 | 0.952 | 0.960 |
| f3/f | 2.943 | 3.374 | 2.443 |
| f4/f | -10.051 | -3.154 | 4.786 |
| f5/f | 0.503 | 0.544 | 0.729 |
| f6/f | -1.042 | -2.230 | -7.189 |
| f7/f | -0.948 | -0.743 | -0.757 |
| d1 | 0.245 | 0.210 | 0.240 |
| d3 | 0.439 | 0.549 | 0.519 |
| d5 | 0.466 | 0.315 | 0.315 |
| d7 | 0.292 | 0.559 | 0.257 |
| d9 | 0.550 | 0.550 | 0.494 |
| d11 | 0.397 | 0.356 | 0.569 |
| d13 | 0.245 | 0.250 | 0.300 |
| Fno | 2.150 | 2.180 | 2.150 |
| TTL | 5.532 | 5.362 | 5.756 |
| d7/TTL | 0.053 | 0.104 | 0.045 |
| n1 | 1.6509 | 1.6509 | 1.6355 |
| n2 | 1.5352 | 1.5352 | 1.5352 |
| n3 | 1.5352 | 1.5352 | 1.5352 |
| n4 | 1.9229 | 1.8211 | 1.9229 |
| n5 | 1.7130 | 1.7290 | 1.8014 |
| n6 | 1.5346 | 1.5352 | 1.5346 |
| n7 | 1.6509 | 1.6509 | 1.6613 |
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；
The focal length of the camera optical camera lens is f, and the focal length of first lens is f1, the curvature of the first lens thing side
Radius is R1, and the radius of curvature of the first lens image side surface is R2, and the refractive index of the 4th lens is n4, and the described 6th is saturating
The focal length of mirror is f6, and the focal length of the 7th lens is f7, and the refractive index of the 5th lens is n5, meets following relationship：
-3≤f1/f≤-1,1.7≤n4≤2.2,1≤f6/f7≤10；
2≤(R1+R2)/(R1-R2)≤10；
1.7≤n5≤2.2。
2. camera optical camera lens according to claim 1, it is characterised in that first 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；
Thickness is d1 on the axle of first lens, and meets following relationship：
0.11≤d1≤0.37。
3. camera optical camera lens according to claim 1, it is characterised in that second 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 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：
0.48≤f2/f≤1.65；
-2.89≤(R3+R4)/(R3-R4)≤-0.78；
0.22≤d3≤0.82。
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；
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：
1.22≤f3/f≤5.06；
-6.06≤(R5+R6)/(R5-R6)≤-0.30；
0.16≤d5≤0.70。
5. camera optical camera lens according to claim 1, it is characterised in that the focal length of the camera optical camera lens is f, institute
The focal length for stating the 4th lens is f4, and the radius of curvature of the 4th lens thing side is R7, the song of the 4th lens image side surface
Rate radius is R8, and thickness is d7 on the axle of the 4th lens, and meets following relationship：
-20.10≤f4/f≤7.18；
-66.21≤(R7+R8)/(R7-R8)≤11.75；
0.13≤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 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 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：
0.25≤f5/f≤1.09；
0.85≤(R9+R10)/(R9-R10)≤3.37；
0.25≤d9≤0.83。
7. camera optical camera lens according to claim 1, it is characterised in that the 6th 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 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：
-14.38≤f6/f≤-0.69；
0.56≤(R11+R12)/(R11-R12)≤3.27；
0.18≤d11≤0.85。
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, the curvature of the 7th lens thing side
Radius is R13, and the radius of curvature of the 7th lens image side surface is R14, and thickness is d13 on the axle of the 7th lens, and full
Sufficient following relationship：
0.98≤(R13+R14)/(R13-R14)≤5.37；
-1.90≤f7/f≤-0.50；
0.12≤d13≤0.45。
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 6.33 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 2.25.
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| CN201710974759.3A CN107817578B (en) | 2017-10-19 | 2017-10-19 | Image pickup optical lens |
| JP2017229239A JP6405031B1 (en) | 2017-10-19 | 2017-11-29 | Imaging optical lens |
| US15/838,987 US10451846B2 (en) | 2017-10-19 | 2017-12-12 | Camera optical lens |
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|---|---|---|---|
| CN201710974759.3A CN107817578B (en) | 2017-10-19 | 2017-10-19 | Image pickup optical lens |
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| CN107817578B CN107817578B (en) | 2020-02-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110058384A (en) * | 2019-05-30 | 2019-07-26 | 浙江大华技术股份有限公司 | A kind of camera lens |
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