CN107664813A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN107664813A CN107664813A CN201710974785.6A CN201710974785A CN107664813A CN 107664813 A CN107664813 A CN 107664813A CN 201710974785 A CN201710974785 A CN 201710974785A CN 107664813 A CN107664813 A CN 107664813A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 111
- 239000000463 material Substances 0.000 claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 20
- 239000004033 plastic Substances 0.000 claims abstract description 20
- 239000011521 glass Substances 0.000 claims abstract description 8
- 238000009738 saturating Methods 0.000 claims description 4
- 238000003384 imaging method Methods 0.000 abstract description 7
- 230000004075 alteration Effects 0.000 description 16
- 238000010586 diagram Methods 0.000 description 15
- 238000012937 correction Methods 0.000 description 11
- 238000013461 design Methods 0.000 description 8
- 238000001914 filtration Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000009826 distribution Methods 0.000 description 3
- 210000001747 pupil Anatomy 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 241000700608 Sagitta Species 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012634 optical imaging Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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 plastic material, and the 4th lens are plastic material, and the 5th lens are plastic material, and the 6th lens are glass material, and the 7th lens are plastic material；And meet following relationship：‑3≤f1/f≤‑1；1.7≤n2≤2.2；2≤(R1+R2)/(R1‑R2)≤10；1≤f6/f7≤10；1.7≤n6≤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 the second lens are glass material, and the 3rd lens are plastic material, the
Four lens are plastic material, and the 5th lens are plastic material, and the 6th lens are glass material, and the 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, 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 second lens is n2, 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 6th lens is n6, meets following relationship
Formula：-3≤f1/f≤-1；1.7≤n2≤2.2；2≤(R1+R2)/(R1-R2)≤10；1≤f6/f7≤10；1.7≤n6≤
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：0.1≤d1≤0.36.
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：0.33≤f2/f≤1.21；-3.89≤(R3+R4)/(R3-R4)≤-0.85；0.25≤d3≤0.85.
Preferably, the 3rd lens have positive refracting power, its image side surface 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：1.28≤f3/f
≤5.57；-1.32≤(R5+R6)/(R5-R6)≤1.97；0.15≤d5≤1.15.
Preferably, the 4th lens have negative refracting power；The focal length of the camera optical camera lens is f, and the described 4th is saturating
The focal length of mirror is f4, and the radius of curvature of the 4th lens thing side is R7, and the radius of curvature of the 4th lens image side surface is
R8, thickness is d7 on the axle of the 4th lens, and meets following relationship：-7.50≤f4/f≤-1.21；-4.89≤(R7+
R8)/(R7-R8)≤4.35；0.10≤d7≤0.42.
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：0.24≤f5/f≤0.91；0.78≤(R9+R10)/(R9-R10)≤2.75；0.34≤d9≤1.55.
Preferably, the 6th lens have a negative refracting power, its image side surface in it is paraxial be concave surface；The camera optical camera lens
Focal length be f, the focal length of the 6th lens is f6, and the radius of curvature of the 6th lens thing side is R11, and the described 6th is saturating
The radius of curvature of mirror image side is R12, and thickness is d11 on the axle of the 6th lens, and meets following relationship：-7.77≤
f6/f≤-0.82；0.43≤(R11+R12)/(R11-R12)≤1.79；0.17≤d11≤0.80.
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 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, described
The focal length of camera optical camera lens is f, and the focal length of the 7th lens is f7, and thickness is d13 on the axle of the 7th lens, and full
Sufficient following relationship：0.88≤(R13+R14)/(R13-R14)≤3.19；-1.53≤f7/f≤-0.43；0.12≤d13≤
0.45。
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 6.20 millimeters.
Preferably, the aperture F numbers of the camera optical camera lens are less than or equal to 2.21.
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 glass material, and the 3rd lens L3 is plastic material, the 4th
Lens L4 is plastic material, and the 5th lens L5 is plastic material, and the 6th lens L6 is glass material, and the 7th lens L7 is plastics material
Matter.
Here, the focal length for defining overall camera optical camera lens 10 is f, the focal length of the first lens L1 is f1, described
The radius of curvature of one lens L1 things side is R1, and the radius of curvature of the first lens L1 image side surfaces is R2, second lens
L2 refractive index is n2, and the focal length of the 6th lens L6 is f6, and the focal length of the 7th lens L7 is f7, the 6th lens
L6 refractive index is n6：-3≤f1/f≤-1；1.7≤n2≤2.2；2≤(R1+R2)/(R1-R2)≤10；1≤f6/f7≤10；
1.7≤n6≤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, -2.98≤f1/f≤- 1.18 are met.
1.7≤n2≤2.2 are more beneficial for developing to ultrathin within this range, it is specified that the second lens L2 refractive index,
Simultaneously beneficial to amendment aberration.Preferably, 1.72≤n2≤2.03 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 1.38≤f6/f7≤
7.54。
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 2.79≤(R1+R2)/(R1-R2)≤
9.261。
1.7≤n6≤2.2 are more beneficial for developing to ultrathin within this range, it is specified that the 6th lens L6 refractive index,
Simultaneously beneficial to amendment aberration.Preferably, 1.71≤n6≤2.00 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 the axle of the first lens L1：0.1≤d1≤0.36, be advantageous to reality
Existing ultrathin.Preferably, 0.16≤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：0.33≤f2/f≤1.21, 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；-3.89≤(R3+R4)/(R3-
R4)≤- 0.85, 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；0.25≤d3≤0.85, it is advantageously implemented ultrathin.Preferably, 0.53≤f2/f≤0.96；-
2.43≤(R3+R4)/(R3-R4)≤-1.07；0.40≤d3≤0.68.
In present embodiment, the 3rd lens L3 has positive refracting power, its image side surface in it is paraxial be convex surface；Overall shooting
The focal length of optical 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
The radius of curvature R 6 of image side surface, and thickness d 5 meets following relationship on the 3rd lens L3 axle：1.28≤f3/f≤5.57,
Be advantageous to the ability that system obtains the good balance curvature of field, effectively to be lifted as matter；-1.32≤(R5+R6)/(R5-R6)≤
1.97, 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；0.15≤d5≤1.15, it is advantageously implemented ultrathin.Preferably, 2.04
≤f3/f≤4.45；-0.82≤(R5+R6)/(R5-R6)≤1.58；0.25≤d5≤0.92.
In present embodiment, the 4th lens have negative refracting power；The focal length of overall camera optical camera lens 10 is f, the
Four lens L4 focal lengths f4, the radius of curvature R 7 of the 4th lens L4 things side, the radius of curvature R 8 of the 4th lens L4 image side surfaces, and
Thickness d 7 meets following relationship on 4th lens L4 axle：- 7.50≤f4/f≤- 1.21, by the reasonable distribution of focal power,
So that system has preferable image quality and relatively low sensitiveness；It is as defined in -4.89≤(R7+R8)/(R7-R8)≤4.35
4th lens L4 shape, when outside scope, with the development of ultra-thin wide angle, asked it is difficult to draw the aberration at angle etc. outside the axle that makes corrections
Topic；0.10≤d7≤0.42, it is advantageously implemented ultrathin.Preferably, -4.69≤f4/f≤- 1.51；-3.06≤(R7+R8)/
(R7-R8)≤3.48；0.17≤d7≤0.34.
In present embodiment, the 5th lens L5 has 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 overall camera optical camera lens 10 is f, the 5th lens L5 focal length f5, the 5th lens L5 things side
Radius of curvature R 9, the radius of curvature R 10 of the 5th lens L5 image side surfaces, and thickness d 9 meets following pass on the 5th lens L5 axle
It is formula：0.24≤f5/f≤0.91, the light angle of pick-up lens is gentle can effectively to be caused to limiting for the 5th lens L5, drop
Low tolerance sensitivities；0.78≤(R9+R10)/(R9-R10)≤2.75, it is specified that be the 5th lens L5 shape, in condition model
When enclosing 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；0.34≤d9≤1.55, be advantageous to
Realize ultrathin.Preferably, 0.39≤f5/f≤0.73；1.24≤(R9+R10)/(R9-R10)≤2.20；0.54≤d9≤
1.24。
In present embodiment, the 6th lens L6 has a negative refracting power, its image side surface in it is paraxial be concave surface；Overall shooting
The focal length of optical lens 10 is f, the 6th lens L6 focal length f6, the radius of curvature R 11 of the 6th lens L6 things side, the 6th lens L6
The radius of curvature R 12 of image side surface, and thickness d 11 meets following relationship on the 6th lens L6 axle：-7.77≤f6/f≤-
0.82, pass through the reasonable distribution of focal power so that system has preferable image quality and relatively low sensitiveness；0.43≤(R11
+ R12)/(R11-R12)≤1.79, it is specified that be the 6th lens L6 shape, when outside condition and range, with ultra-thin wide angle
Development, it is difficult to the problems such as drawing the aberration at angle outside the axle that makes corrections；0.17≤d11≤0.80, it is advantageously implemented ultrathin.Preferably ,-
4.85≤f6/f≤-1.03；0.68≤(R11+R12)/(R11-R12)≤1.43；0.27≤d11≤0.64.
In present embodiment, the 7th lens L7 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；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, 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
d13：0.88≤(R13+R14)/(R13-R14)≤3.19, it is specified that be the 7th lens L7 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；- 1.53≤f7/f≤- 0.43, passes through focal power
Reasonable distribution so that system has preferable image quality and relatively low sensitiveness；0.12≤d13≤0.45, be advantageous to reality
Existing ultrathin.Preferably, 1.41≤(R13+R14)/(R13-R14)≤2.55；-0.96≤f7/f≤-0.53；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 6.20 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 5.92.
In present embodiment, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.21.Large aperture, imaging performance are good.
Preferably, the aperture F numbers of camera optical camera lens 10 are less than or equal to 2.17.
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 embodiment of the present invention 1.
【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 that the point of inflexion of each lens and stationary point are set in the camera optical camera lens 10 of embodiment of the present invention 1
Count.Wherein, R1, R2 represent the first lens L1 thing side and image side surface respectively, and R3, R4 represent the second lens L2's respectively
Thing side and image side surface, R5, R6 represent the 3rd lens L3 thing side and image side surface respectively, and R7, R8 represent the 4th lens respectively
L4 thing side and image side surface, R9, R10 represent the 5th lens L5 thing side and image side surface respectively, and R11, R12 represent respectively
Six lens L6 thing side and image side surface, R13, R14 represent the 7th lens L7 thing side and image side surface respectively." point of inflexion position
Put " field corresponding data be each lens surface set by the point of inflexion to the optical axis of camera optical camera lens 10 vertical range." 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 3】
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 1 | 0.575 | |
| R2 | 1 | 0.725 | |
| R3 | 1 | 0.925 | |
| R4 | 1 | 0.755 | |
| R5 | 0 | ||
| R6 | 1 | 0.905 | |
| R7 | 1 | 0.285 | |
| R8 | 2 | 0.435 | 1.215 |
| R9 | 1 | 0.905 | |
| R10 | 1 | 0.925 | |
| R11 | 1 | 0.165 | |
| R12 | 1 | 0.525 | |
| R13 | 1 | 0.675 | |
| R14 | 1 | 0.715 |
【Table 4】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 0 | |
| R3 | 0 | |
| R4 | 1 | 0.985 |
| R5 | 0 | |
| R6 | 1 | 1.105 |
| R7 | 1 | 0.485 |
| R8 | 1 | 0.795 |
| R9 | 1 | 1.315 |
| R10 | 1 | 1.535 |
| R11 | 1 | 0.285 |
| R12 | 1 | 0.945 |
| R13 | 1 | 1.415 |
| R14 | 1 | 2.085 |
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 1.806mm, and full filed image height is
2.944mm, the angle of visual field of diagonal are 74.77 °, 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 | 1 | 0.665 | |
| R2 | 1 | 0.705 | |
| R3 | 1 | 0.975 | |
| R4 | 1 | 0.745 | |
| R5 | 0 | ||
| R6 | 1 | 0.975 | |
| R7 | 0 | ||
| R8 | 2 | 0.235 | 1.005 |
| R9 | 0 | ||
| R10 | 0 | ||
| R11 | 0 | ||
| R12 | 2 | 0.615 | 2.005 |
| R13 | 2 | 0.675 | 1.905 |
| R14 | 1 | 0.685 |
【Table 8】
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 1.804mm, and full filed image height is
2.944mm, the angle of visual field of diagonal are 74.77 °, 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 20 of third embodiment of the invention and stayed
Point design data.
【Table 11】
【Table 12】
| Stationary point number | Stationary point position 1 | |
| R1 | 0 | |
| R2 | 0 | |
| R3 | 0 | |
| R4 | 0 | |
| R5 | 1 | 0.735 |
| R6 | 0 | |
| R7 | 0 | |
| R8 | 1 | 1.195 |
| R9 | 1 | 1.275 |
| R10 | 0 | |
| R11 | 1 | 0.185 |
| R12 | 1 | 1.235 |
| R13 | 1 | 1.365 |
| R14 | 1 | 1.945 |
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 1.807mm, and full filed image height is
2.944mm, 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.
【Table 13】
| Parameter and conditional | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| f | 3.882 | 3.879 | 3.885 |
| f1 | -5.286 | -7.762 | -11.472 |
| f2 | 2.582 | 2.870 | 3.123 |
| f3 | 14.408 | 12.720 | 9.913 |
| f4 | -11.436 | -14.550 | -7.039 |
| f5 | 2.112 | 1.883 | 2.357 |
| f6 | -12.390 | -4.795 | -15.087 |
| f7 | -2.478 | -2.720 | -2.973 |
| f6/f7 | 5.000 | 1.763 | 5.075 |
| (R1+R2)/(R1-R2) | 3.578 | 5.928 | 8.522 |
| (R3+R4)/(R3-R4) | -1.281 | -1.425 | -1.947 |
| (R5+R6)/(R5-R6) | -0.658 | 1.302 | 1.313 |
| (R7+R8)/(R7-R8) | 2.899 | 0.293 | -2.446 |
| (R9+R10)/(R9-R10) | 1.556 | 1.659 | 1.833 |
| (R11+R12)/(R11-R12) | 1.192 | 0.851 | 1.067 |
| (R13+R14)/(R13-R14) | 1.768 | 2.034 | 2.126 |
| f1/f | -1.362 | -2.001 | -2.953 |
| f2/f | 0.665 | 0.740 | 0.804 |
| f3/f | 3.712 | 3.279 | 2.551 |
| f4/f | -2.946 | -3.751 | -1.812 |
| f5/f | 0.544 | 0.485 | 0.607 |
| f6/f | -3.192 | -1.236 | -3.883 |
| f7/f | -0.638 | -0.701 | -0.765 |
| d1 | 0.240 | 0.205 | 0.205 |
| d3 | 0.545 | 0.500 | 0.568 |
| d5 | 0.768 | 0.309 | 0.433 |
| d7 | 0.206 | 0.280 | 0.280 |
| d9 | 0.671 | 0.974 | 1.032 |
| d11 | 0.340 | 0.361 | 0.537 |
| d13 | 0.246 | 0.300 | 0.300 |
| Fno | 2.150 | 2.150 | 2.150 |
| TTL | 5.350 | 5.181 | 5.634 |
| d7/TTL | 0.039 | 0.054 | 0.050 |
| n1 | 1.6713 | 1.6713 | 1.6713 |
| n2 | 1.8540 | 1.7725 | 1.7290 |
| n3 | 1.5346 | 1.5346 | 1.5346 |
| n4 | 1.6509 | 1.6613 | 1.6613 |
| n5 | 1.5352 | 1.5352 | 1.5352 |
| n6 | 1.7130 | 1.8014 | 1.8014 |
| n7 | 1.5352 | 1.5352 | 1.5352 |
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 plastics
Material, the second lens are glass material, and the 3rd lens are plastic material, and the 4th lens are plastic material, and the 5th lens are plastics
Material, the 6th lens are glass material, and the 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, 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 second lens is n2, 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 6th lens is n6, meets following relationship：-
3≤f1/f≤-1；1.7≤n2≤2.2；2≤(R1+R2)/(R1-R2)≤10；1≤f6/f7≤10；1.7≤n6≤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：
0.1≤d1≤0.36。
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：
0.33≤f2/f≤1.21；
-3.89≤(R3+R4)/(R3-R4)≤-0.85；
0.25≤d3≤0.85。
4. camera optical camera lens according to claim 1, it is characterised in that the 3rd lens have positive refracting power, 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：
1.28≤f3/f≤5.57；
-1.32≤(R5+R6)/(R5-R6)≤1.97；
0.15≤d5≤1.15。
5. camera optical camera lens according to claim 1, it is characterised in that the 4th lens have negative refracting power；
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：
-7.50≤f4/f≤-1.21；
-4.89≤(R7+R8)/(R7-R8)≤4.35；
0.10≤d7≤0.42。
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：
0.24≤f5/f≤0.91；
0.78≤(R9+R10)/(R9-R10)≤2.75；
0.34≤d9≤1.55。
7. camera optical camera lens according to claim 1, it is characterised in that the 6th lens have negative refracting power, 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：
-7.77≤f6/f≤-0.82；
0.43≤(R11+R12)/(R11-R12)≤1.79；
0.17≤d11≤0.80。
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 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, described
The focal length of camera optical camera lens is f, and the focal length of the 7th lens is f7, and thickness is d13 on the axle of the 7th lens, and full
Sufficient following relationship：
0.88≤(R13+R14)/(R13-R14)≤3.19；
-1.53≤f7/f≤-0.43；
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 6.20 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 2.21.
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| CN201710974785.6A CN107664813B (en) | 2017-10-19 | 2017-10-19 | Image pickup optical lens |
| JP2017225650A JP6362193B1 (en) | 2017-10-19 | 2017-11-24 | Imaging optical lens |
| US15/838,958 US10527822B2 (en) | 2017-10-19 | 2017-12-12 | Camera optical lens |
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