CN109839722A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN109839722A CN109839722A CN201811616007.0A CN201811616007A CN109839722A CN 109839722 A CN109839722 A CN 109839722A CN 201811616007 A CN201811616007 A CN 201811616007A CN 109839722 A CN109839722 A CN 109839722A
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Abstract
The present invention relates to field of optical lens, disclose a kind of camera optical camera lens, which sequentially includes from object side to image side: the first lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；First lens are glass material, and second lens are glass material, and the third lens are plastic material, 4th lens are plastic material, 5th lens are plastic material, and the 6th lens are plastic material, and the 7th lens are plastic material；And meet following relationship: 1.00≤f1/f≤1.50, and 1.70≤n1≤2.20, -2.00≤f3/f4≤2.00,0.50≤(R13+R14)/(R13-R14)≤10.00,1.70≤n2≤2.20.While the camera optical camera lens can obtain high imaging performance, low TTL is obtained.
Description
Technical field
The present invention relates to field of optical lens, in particular to a kind of to be suitable for the hand-held terminals such as smart phone, digital camera
The camera optical camera lens of the photographic devices such as equipment and monitor, PC camera lens.
Background technique
In recent years, with the rise of smart phone, the demand for minimizing phtographic lens is increasingly improved, and general phtographic lens
Sensor devices nothing more than being that photosensitive coupled apparatus (Charge Coupled Device, CCD) or Complimentary Metal-Oxide are partly led
Two kinds of body device (Complementary Metal-OxideSemicondctor Sensor, CMOS Sensor), and due to half
Conductor manufacturing process technology progresses greatly, so that the Pixel Dimensions of sensor devices reduce, along with electronic product is good with function now
And light and short external form is development trend, therefore, the miniaturization pick-up lens for having good image quality becomes at present
Mainstream in the market.To obtain preferable image quality, the camera lens that tradition is equipped on mobile phone camera mostly uses three-chip type or four
Formula lens arrangement.Also, with the development of technology and users on diversity increases, sensor devices elemental area not
It is disconnected to reduce, and in the case that requirement of the system to image quality is continuously improved, five chips, six chips, seven chip lens arrangements by
Gradually appear in lens design.The wide-angle that there is outstanding optical signature, ultra-thin and chromatic aberation sufficiently to make corrections for urgent need is taken the photograph
As camera lens.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of camera optical camera lens high imaging performance can be being 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, which is characterized in that
The camera optical camera lens sequentially includes from object side to image side: the first lens, the second lens, the third lens, the 4th lens, the
Five lens, the 6th lens and the 7th lens；
First lens are glass material, and second lens are glass material, and the third lens are plastic material,
4th lens be plastic material, the 5th lens be plastic material, the 6th lens be 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 third lens is
F3, the focal length of the 4th lens are f4, and the refractive index of first lens is n1, and the refractive index of second lens is n2,
The radius of curvature of 7th lens object side is R13, and the radius of curvature of the 7th lens image side surface is R14, is met following
Relational expression:
1.00≤f1/f≤1.50,
1.70≤n1≤2.20,
- 2.00≤f3/f4≤2.00,
0.50≤(R13+R14)/(R13-R14)≤10.00,
1.70≤n2≤2.20。
Preferably, the camera optical camera lens meets following relationship: 1.05≤f1/f≤1.45；1.71≤n1≤
2.10, -1.85≤f3/f4≤1.50,1.75≤(R13+R14)/(R13-R14)≤8.50,1.72≤n2≤2.15.
Preferably, first lens have a positive refracting power, object side in it is paraxial be convex surface, image side surface is in paraxial
Concave surface；The radius of curvature of the first lens object side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It states with a thickness of d1 on the axis of the first lens, the optics overall length of the camera optical camera lens is TTL, and meets following relationship :-
9.09≤(R1+R2)/(R1-R2)≤-2.68；0.05≤d1/TTL≤0.19.
Preferably, the camera optical camera lens meets following relationship: -5.68≤(R1+R2)/(R1-R2)≤- 3.34；
0.08≤d1/TTL≤0.15。
Preferably, second lens have a negative refracting power, object side in it is paraxial be convex surface, 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 object side
Rate radius is R3, and the radius of curvature of the second lens image side surface is R4, described to take the photograph with a thickness of d3 on the axis of second lens
As the optics overall length of optical lens is TTL, and meet following relationship: -141.74≤f2/f≤- 5.14；7.91≤(R3+
R4)/(R3-R4)≤48.75；0.01≤d3/TTL≤0.08.
Preferably, the camera optical camera lens meets following relationship: -88.59≤f2/f≤- 6.42；12.65≤(R3+
R4)/(R3-R4)≤39.00；0.02≤d3/TTL≤0.06.
Preferably, the third lens have a negative refracting power, object side in it is paraxial be convex surface, 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 third lens is f3, the song of the third lens object side
Rate radius is R5, and the radius of curvature of the third lens image side surface is R6, described to take the photograph with a thickness of d5 on the axis of the third lens
As the optics overall length of optical lens is TTL, and meet following relationship: -11.15≤f3/f≤- 2.09；0.87≤(R5+R6)/
(R5-R6)≤3.91；0.03≤d5/TTL≤0.08.
Preferably, the camera optical camera lens meets following relationship: -6.97≤f3/f≤- 2.61；1.39≤(R5+
R6)/(R5-R6)≤3.12；0.04≤d5/TTL≤0.07.
Preferably, the 4th lens object side is in paraxial for convex surface；The focal length of the camera optical camera lens is f, described
The focal length of 4th lens is f4, and the radius of curvature of the 4th lens object side is R7, the curvature of the 4th lens image side surface
Radius is R8, and the optics overall length of the camera optical camera lens is TTL, with a thickness of d7 on the axis of the 4th lens, and under meeting
Column relational expression: -11.15≤f4/f≤4.19；-0.22≤(R7+R8)/(R7-R8)≤2.38；0.05≤d7/TTL≤0.21.
Preferably, the camera optical camera lens meets following relationship: -6.97≤f4/f≤3.35；-0.14≤(R7+
R8)/(R7-R8)≤1.90；0.09≤d7/TTL≤0.17.
Preferably, the 5th lens have a negative refracting power, object side in it is paraxial be convex surface, 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 object side
Rate radius is R9, and the radius of curvature of the 5th lens image side surface is R10, described with a thickness of d9 on the axis of the 5th lens
The optics overall length of camera optical camera lens is TTL, and meets following relationship: -8.27≤f5/f≤- 1.35；1.67≤(R9+
R10)/(R9-R10)≤9.15；0.02≤d9/TTL≤0.08.
Preferably, the camera optical camera lens meets following relationship: -5.17≤f5/f≤- 1.69；2.67≤(R9+
R10)/(R9-R10)≤7.32；0.04≤d9/TTL≤0.07.
Preferably, the 6th lens have a positive refracting power, object side in it is paraxial be convex surface, 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 object side
Rate radius is R11, and the radius of curvature of the 6th lens image side surface is R12, with a thickness of d11, institute on the axis of the 6th lens
The optics overall length for stating camera optical camera lens is TTL, and meets following relationship: 0.48≤f6/f≤2.03；-4.22≤(R11+
R12)/(R11-R12)≤-0.97；0.03≤d11/TTL≤0.12.
Preferably, the camera optical camera lens meets following relationship: 0.77≤f6/f≤1.63；-2.63≤(R11+
R12)/(R11-R12)≤-1.21；0.06≤d11/TTL≤0.10.
Preferably, the 7th lens have a negative refracting power, object side in it is paraxial be convex surface, 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 axis of the 7th lens
Optics overall length for d13, the camera optical camera lens is TTL, and meets following relationship: -10.05≤f7/f≤- 1.33；
0.06≤d13/TTL≤0.22。
Preferably, the camera optical camera lens meets following relationship: -6.28≤f7/f≤- 1.67；0.10≤d13/
TTL≤0.17。
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 6.93 millimeters.
Preferably, the optics overall length TTL of the camera optical camera lens is less than or equal to 6.62 millimeters.
Preferably, the aperture F number of the camera optical camera lens is less than or equal to 1.60.
Preferably, the aperture F number of the camera optical camera lens is less than or equal to 1.57.
The beneficial effects of the present invention are: camera optical camera lens according to the present invention has outstanding optical characteristics, ultra-thin,
Wide-angle and chromatic aberation sufficiently makes corrections, is particularly suitable for the cell-phone camera mirror being made of photographing elements such as CCD, CMOS of high pixel
Head assembly and WEB pick-up lens.
Detailed description of the invention
Fig. 1 is the structural schematic diagram 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 schematic diagram 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 schematic diagram 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.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each embodiment of the present invention,
Many technical details are proposed in order to make reader more fully understand the present invention.But even if without these technical details and base
In the various changes and modifications of following embodiment, claimed technical solution of the invention also may be implemented.
(first embodiment)
With reference to attached drawing, the present invention provides a kind of camera optical camera lenses 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 object side
Sequentially include: to image side aperture S1, the first lens L1, the second lens L2, the third lens L3, the 4th lens L4, the 5th lens L5,
6th lens L6 and the 7th lens L7.It may be provided with optical filtering piece (filter) GF etc. between 7th lens L7 and image planes Si
Optical element.
First lens L1 is glass material, and the second lens L2 is glass material, and the third lens L3 is plastic material, and the 4th thoroughly
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 whole camera optical camera lens 10 is f, and the focal length of the first lens L1 is f1,1.00≤f1/f≤
1.50, it is specified that the positive refracting power of the first lens L1.When more than lower limit specified value, develop although being conducive to camera lens to ultrathin,
But the positive refracting power of 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.
On the contrary, the positive refracting power of the first lens can become weak when being more than upper limit specified value, camera lens is difficult to develop to ultrathin.Preferably,
Meet 1.05≤f1/f≤1.45.
The refractive index for defining the first lens L1 is n1, and 1.70≤n1≤2.20 are, it is specified that the refraction of the first lens L1
Rate is more advantageous within this range to ultrathin and develops, while being conducive to amendment aberration.Preferably, meet 1.71≤n1≤2.10.
The focal length for defining the third lens L3 is f3, and the focal length of the 4th lens L4 is f4, -2.00≤f3/f4≤
2.00, it is specified that the ratio of the focal length f4 of the focal length f3 and the 4th lens L4 of the third lens L3, can effectively reduce optical imaging
The susceptibility of lens group, further promotes image quality.Preferably, meet -1.85≤f3/f4≤1.50.
The radius of curvature for defining the 7th lens L7 object side is R13, the curvature half of the 7th lens L7 image side surface
Diameter is R14, and 0.50≤(R13+R14)/(R13-R14)≤10.00 is, it is specified that the shape of the 7th lens L7, when outside range, with
To ultra-thin wide angle develop, be difficult make corrections axis outside draw angle aberration the problems such as.Preferably, meet 1.75≤(R13+R14)/
(R13-R14)≤8.50。
The refractive index for defining the second lens L2 is n2, and 1.70≤n2≤2.20 are, it is specified that the refraction of the second lens L2
Rate is more advantageous within this range to ultrathin and develops, while being conducive to amendment aberration.Preferably, meet 1.72≤n2≤2.15.
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
It learns the optics overall length of camera lens, when thickness and radius of curvature meet above-mentioned relation formula on axis, videography optical lens head 10 can be made to have
High-performance, and meet the design requirement of low TTL.
In present embodiment, the object side of the first lens L1 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is positive refracting power.
The radius of curvature R 1 of first lens L1 object side, the radius of curvature R 2 of the first lens L1 image side surface meet following pass
Being formula: -9.09≤(R1+R2)/(R1-R2)≤- 2.68 rationally controls the shape of the first lens, the first lens is had
Effect ground correction system spherical aberration；Preferably, -5.68≤(R1+R2)/(R1-R2)≤- 3.34.
With a thickness of d1 on the axis of first lens L1, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.05≤d1/TTL≤0.19 is advantageously implemented ultrathin.Preferably, 0.08≤d1/TTL≤0.15.
In present embodiment, the object side of the second lens L2 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, the second lens L2 focal length f2, meets following relationship: -141.74≤
F2/f≤- 5.14, by zone of reasonableness, effectively being balanced the negative power control of the second lens L2 with reasonable by having
The curvature of field amount of negative spherical aberration and system that first lens L1 of positive light coke is generated.Preferably, -88.59≤f2/f≤- 6.42.
The radius of curvature R 3 of second lens L2 object side, the radius of curvature R 4 of the second lens L2 image side surface meet following pass
Be formula: 7.91≤(R3+R4)/(R3-R4)≤48.75 is, it is specified that the shape of the second lens L2, when outside range, with camera lens
Develop to ultra-thin wide angle, it is difficult to which make corrections Aberration Problem.Preferably, 12.65≤(R3+R4)/(R3-R4)≤39.00.
With a thickness of d3 on the axis of second lens L2, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.01≤d3/TTL≤0.08 is advantageously implemented ultrathin.Preferably, 0.02≤d3/TTL≤0.06.
In present embodiment, the object side of the third lens L3 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, the third lens L3 focal length f3, and meets following relationship :-
11.15≤f3/f≤- 2.09 is conducive to the ability that system obtains the good balance curvature of field, effectively to promote image quality.It is preferred that
, -6.97≤f3/f≤- 2.61.
The radius of curvature R 5 of the third lens L3 object side, the radius of curvature R 6 of the third lens L3 image side surface meet following pass
Being formula: 0.87≤(R5+R6)/(R5-R6)≤3.91 can be effectively controlled the shape of the third lens L3, be conducive to the third lens L3
Molding, and avoid causing to form the generation of bad and stress because the surface curvature of the third lens L3 is excessive.Preferably, 1.39≤
(R5+R6)/(R5-R6)≤3.12。
With a thickness of d5 on the axis of the third lens L3, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.03≤d5/TTL≤0.08 is advantageously implemented ultrathin.Preferably, 0.04≤d5/TTL≤0.07.
In present embodiment, the object side of the 4th lens L4 is convex surface in paraxial place, and image side surface is convex surface, tool in paraxial place
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, the 4th lens L4 focal length f4, meets following relationship: -11.15≤
F4/f≤4.19, by the reasonable distribution of focal power, so that system has preferable image quality and lower sensibility.It is preferred that
, -6.97≤f4/f≤3.35.
The radius of curvature R 7 of 4th lens L4 object side, the radius of curvature R 8 of the 4th lens L4 image side surface meet following pass
Be formula: -0.22≤(R7+R8)/(R7-R8)≤2.38, it is specified that be the 4th lens L4 shape, when outside range, with super
The development of thin wide angle is difficult the problems such as drawing the aberration at angle outside correction axis.Preferably, -0.14≤(R7+R8)/(R7-R8)≤
1.90。
With a thickness of d7 on the axis of 4th lens L4, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.05≤d7/TTL≤0.21 is advantageously implemented ultrathin.Preferably, 0.09≤d7/TTL≤0.17.
In present embodiment, the object side of the 5th lens L5 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, the 5th lens L5 focal length f5, meets following relationship: -8.27≤
F5/f≤- 1.35 can effectively make the light angle of pick-up lens gentle the restriction of 5th lens L5, and it is sensitive to reduce tolerance
Degree.Preferably, -5.17≤f5/f≤- 1.69.
The radius of curvature R 9 of 5th lens L5 object side, the radius of curvature R 10 of the 5th lens L5 image side surface meet following pass
Be formula: 1.67≤(R9+R10)/(R9-R10)≤9.15, it is specified that be the 5th lens L5 shape, when outside condition and range, with
The development of ultra-thin wide angle, the problems such as drawing the aberration at angle outside the axis that is difficult to make corrections.Preferably, 2.67≤(R9+R10)/(R9-R10)
≤7.32。
With a thickness of d9 on the axis of 5th lens L5, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.02≤d9/TTL≤0.08 is advantageously implemented ultrathin.Preferably, 0.04≤d9/TTL≤0.07.
In present embodiment, the object side of the 6th lens L6 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is positive refracting power.
The focal length of whole camera optical camera lens 10 is f, and the 6th lens L6 focal length f6 meets following relationship: 0.48≤f6/
F≤2.03, by the reasonable distribution of focal power, so that system has preferable image quality and lower sensibility.Preferably,
0.77≤f6/f≤1.63。
The radius of curvature R 11 of 6th lens L6 object side, the radius of curvature R 12 of the 6th lens L6 image side surface meet following
Relational expression: -4.22≤(R11+R12)/(R11-R12)≤- 0.97, 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 the problems such as drawing the aberration at angle outside correction axis.Preferably, -2.63≤(R11+R12)/
(R11-R12)≤-1.21。
With a thickness of d11 on the axis of 6th lens L6, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.03≤d11/TTL≤0.12 is advantageously implemented ultrathin.Preferably, 0.06≤d11/TTL≤0.10.
In present embodiment, the object side of the 7th lens L7 is convex surface in paraxial place, and image side surface is concave surface, tool in paraxial place
There is negative refracting power.
The focal length of whole camera optical camera lens 10 is f, the 7th lens L7 focal length f7, meets following relationship: -10.05≤
F7/f≤- 1.33, by the reasonable distribution of focal power, so that system has preferable image quality and lower sensibility.It is excellent
Choosing, -6.28≤f7/f≤- 1.67.
With a thickness of d13 on the axis of 7th lens L7, the optics overall length of camera optical camera lens 10 is TTL, meets following relationship
Formula: 0.06≤d13/TTL≤0.22 is advantageously implemented ultrathin.Preferably, 0.10≤d13/TTL≤0.17.
In present embodiment, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 6.93 millimeters, is advantageously implemented
Ultrathin.Preferably, the optics overall length TTL of camera optical camera lens 10 is less than or equal to 6.62.
In present embodiment, the aperture F number of camera optical camera lens 10 is less than or equal to 1.60.Large aperture, imaging performance are good.
Preferably, the aperture F number of camera optical camera lens 10 is less than or equal to 1.57.
It is designed in this way, the optics overall length TTL of whole camera optical camera lens 10 is enabled to shorten as far as possible, maintain miniaturization
Characteristic.
Camera optical camera lens 10 of the invention will be illustrated with example below.The documented following institute of symbol in each example
Show.Distance on focal length, axis, radius of curvature, thickness on axis, point of inflexion position, stationary point position unit be mm.
TTL: optical length (distance on the object side to the axis of imaging surface of the 1st lens L1), unit mm；
Preferably, it is also provided with the point of inflexion and/or stationary point on the object side of the lens and/or image side surface, with full
The imaging demand of sufficient high-quality, specific implementable solution are joined lower described.
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 meaning of each symbol is as follows.
S1: aperture；
R: being center radius of curvature when the radius of curvature of optical surface, lens；
The radius of curvature of the object side of R1: the first lens L1；
The radius of curvature of the image side surface of R2: the first lens L1；
The radius of curvature of the object side of R3: the second lens L2；
The radius of curvature of the image side surface of R4: the second lens L2；
The radius of curvature of R5: the third lens L3 object side；
R6: the radius of curvature of the image side surface of the third lens L3；
The radius of curvature of the object side of R7: the four lens L4；
The radius of curvature of the image side surface of R8: the four lens L4；
The radius of curvature of the object side of R9: the five lens L5；
The radius of curvature of the image side surface of R10: the five lens L5；
The radius of curvature of the object side of R11: the six lens L6；
The radius of curvature of the image side surface of R12: the six lens L6；
The radius of curvature of the object side of R13: the seven lens L7；
The radius of curvature of the image side surface of R14: the seven lens L7；
R15: the radius of curvature of the object side of optical filtering piece GF；
R16: the radius of curvature of the image side surface of optical filtering piece GF；
D: distance on the axis on the axis of lens between thickness and lens；
Distance on the axis of the object side of d0: aperture S1 to first lens L1；
Thickness on the axis of d1: the first lens L1；
Distance on the image side surface of d2: the first lens L1 to the axis of the object side of the second lens L2；
Thickness on the axis of d3: the second lens L2；
Distance on the image side surface of d4: the second lens L2 to the axis of the object side of the third lens L3；
D5: thickness on the axis of the third lens L3；
D6: distance on the axis of the image side surface of the third lens L3 to the object side of the 4th lens L4；
Thickness on the axis of d7: the four lens L4；
Distance on the image side surface of d8: the four lens L4 to the axis of the object side of the 5th lens L5；
Thickness on the axis of d9: the five lens L5；
Distance on the image side surface of d10: the five lens L5 to the axis of the object side of the 6th lens L6；
Thickness on the axis of d11: the six lens L6；
Distance on the image side surface of d12: the six lens L6 to the axis of the object side of the 7th lens L7；
Thickness on the axis of d13: the seven lens L7；
Distance on the image side surface of d14: the seven lens L7 to the axis of the object side of optical filtering piece GF；
D15: thickness on the axis of optical filtering piece GF；
D16: distance on the image side surface to the axis of image planes of optical filtering piece GF；
The refractive index of nd:d line；
The refractive index of the d line of nd1: the first lens L1；
The refractive index of the d line of nd2: the second lens L2；
The refractive index of nd3: the third lens L3 d line；
The refractive index of the d line of nd4: the four lens L4；
The refractive index of the d line of nd5: the five lens L5；
The refractive index of the d line of nd6: the six lens L6；
The refractive index of the d line of nd7: the seven lens L7；
Ndg: the refractive index of the d line of optical filtering piece GF；
Vd: Abbe number；
The Abbe number of v1: the first lens L1；
The Abbe number of v2: the second lens L2；
V3: the Abbe number of the third lens L3；
The Abbe number of v4: the four lens L4；
The Abbe number of v5: the five lens L5；
The Abbe number of v6: the six lens L6；
The Abbe number of v7: the seven lens L7；
Vg: the Abbe number of optical filtering piece GF.
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 respectively represent object side and the image side surface of the first lens L1, and R3, R4 respectively represent the second lens L2
Object side and image side surface, R5, R6 respectively represent object side and the image side surface of the third lens L3, R7, R8 respectively represent the 4th thoroughly
The object side of mirror L4 and image side surface, R9, R10 respectively represent object side and the image side surface of the 5th lens L5, and R11, R12 are respectively represented
The object side of 6th lens L6 and image side surface, R13, R14 respectively represent object side and the image side surface of the 7th lens L7." the point of inflexion
Position " field corresponding data is vertical range of the point of inflexion set by each lens surface to 10 optical axis of camera optical camera lens.It " stays
Point position " field corresponding data is vertical range of the stationary point set by each lens surface to 10 optical axis of camera optical camera lens.
[table 3]
[table 4]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| R1 | |||
| R2 | |||
| R3 | |||
| R4 | |||
| R5 | 1 | 0.385 | |
| R6 | 2 | 0.725 | 1.375 |
| R7 | 2 | 0.805 | 1.345 |
| R8 | |||
| R9 | 1 | 0.955 | |
| R10 | 1 | 0.835 | |
| R11 | 1 | 1.255 | |
| R12 | 1 | 1.015 | |
| R13 | 2 | 0.705 | 2.375 |
| R14 | 1 | 1.745 |
Fig. 2, Fig. 3 respectively illustrate shooting light of the light Jing Guo first embodiment that wavelength is 486nm, 588nm and 656nm
Axial aberration and ratio chromatism, schematic diagram after learning camera lens 10.Fig. 4 is then shown, and the light that wavelength is 588nm is real by first
The curvature of field and distortion schematic diagram after applying the camera optical camera lens 10 of mode, the curvature of field S of Fig. 4 is the curvature of field in sagitta of arc direction, and T is meridian
The curvature of field in direction.
The table 13 occurred afterwards show in each example 1,2,3 in various numerical value and conditional as defined in corresponding to 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 3.177mm, and full filed image height is 4.0mm,
The field angle of diagonal is 77.08 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis sufficiently makes corrections, and have outstanding light
Learn feature.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol meaning 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 | Point of inflexion position 3 | |
| R1 | ||||
| R2 | 1 | 1.355 | ||
| R3 | ||||
| R4 | ||||
| R5 | 2 | 0.245 | 1.215 | |
| R6 | 2 | 0.415 | 1.225 | |
| R7 | 2 | 0.405 | 1.125 | |
| R8 | 1 | 1.575 | ||
| R9 | 1 | 0.385 | ||
| R10 | 2 | 0.365 | 2.015 | |
| R11 | 2 | 0.655 | 1.935 | |
| R12 | 2 | 0.645 | 1.965 | |
| R13 | 3 | 0.365 | 1.485 | 2.555 |
| R14 | 1 | 0.625 |
[table 8]
Fig. 6, Fig. 7 respectively illustrate shooting light of the light Jing Guo second embodiment that wavelength is 486nm, 588nm and 656nm
Axial aberration and ratio chromatism, schematic diagram after learning camera lens 20.Fig. 8 is then shown, and the light that wavelength is 588nm is real by second
The curvature of field and distortion schematic diagram after applying the camera optical camera lens 20 of mode.
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 3.072mm, and full filed image height is 4.0mm,
The field angle of diagonal is 78.86 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis sufficiently makes corrections, and have outstanding light
Learn feature.
(third embodiment)
Third embodiment and first embodiment are essentially identical, and symbol meaning 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 stay
Point design data.
[table 11]
[table 12]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| R1 | |||
| R2 | |||
| R3 | |||
| R4 | |||
| R5 | 1 | 0.455 | |
| R6 | 2 | 0.685 | 1.335 |
| R7 | 2 | 0.335 | 1.285 |
| R8 | 1 | 0.435 | |
| R9 | 1 | 0.835 | |
| R10 | 1 | 0.825 | |
| R11 | 1 | 1.275 | |
| R12 | 1 | 0.985 | |
| R13 | 1 | 0.585 | |
| R14 | 1 | 1.425 |
Figure 10, Figure 11 respectively illustrate camera shooting of the light Jing Guo third embodiment that wavelength is 486nm, 588nm and 656nm
Axial aberration and ratio chromatism, schematic diagram after optical lens 30.Figure 12 is then shown, and the light that wavelength is 588nm passes through third
The curvature of field and distortion schematic diagram after the camera optical camera lens 30 of embodiment.
Following table 13 lists the numerical value that each conditional is corresponded in present embodiment according to the above conditions.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 3.213mm, and full filed image height is 4.0mm,
The field angle of diagonal is 76.65 °, wide-angle, ultra-thin, and on axis, the outer chromatic aberation of axis sufficiently makes corrections, and have outstanding light
Learn feature.
[table 13]
| Parameter and conditional | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| f | 4.925 | 4.762 | 4.981 |
| f1 | 6.956 | 5.949 | 5.517 |
| f2 | -349.039 | -36.701 | -46.89 |
| f3 | -15.414 | -19.701 | -27.764 |
| f4 | 13.744 | 11.59 | -27.764 |
| f5 | -10.073 | -9.67 | -20.586 |
| f6 | 6.229 | 6.455 | 4.774 |
| f7 | -24.759 | -16.587 | -9.967 |
| f12 | 6.701 | 6.671 | 5.981 |
| FNO | 1.55 | 1.55 | 1.55 |
| f1/f | 1.41 | 1.25 | 1.11 |
| n1 | 1.73 | 1.90 | 2.00 |
| f3/f4 | -1.12 | -1.70 | 1.00 |
| (R13+R14)/(R13-R14) | 7.00 | 5.54 | 3.00 |
| n2 | 2.09 | 1.90 | 1.75 |
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiment party of the invention
Formula, and in practical applications, can to it, various changes can be made in the form and details, without departing from spirit and model of the invention
It encloses.
Claims (20)
1. a kind of camera optical camera lens, which is characterized in that the camera optical camera lens sequentially includes: first from object side to image side
Lens, the second lens, the third lens, the 4th lens, the 5th lens, the 6th lens and the 7th lens；
First lens are glass material, and second lens are glass material, and the third lens are plastic 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 third lens is f3,
The focal length of 4th lens is f4, and the refractive index of first lens is n1, and the refractive index of second lens is n2, described
The radius of curvature of 7th lens object side is R13, and the radius of curvature of the 7th lens image side surface is R14, meets following relationship
Formula:
1.00≤f1/f≤1.50,
1.70≤n1≤2.20,
- 2.00≤f3/f4≤2.00,
0.50≤(R13+R14)/(R13-R14)≤10.00,
1.70≤n2≤2.20。
2. camera optical camera lens according to claim 1, which is characterized in that the camera optical camera lens meets following relationship
Formula:
1.05≤f1/f≤1.45；
1.71≤n1≤2.10,
- 1.85≤f3/f4≤1.50,
1.75≤(R13+R14)/(R13-R14)≤8.50,
1.72≤n2≤2.15。
3. camera optical camera lens according to claim 1, which is characterized in that first lens have positive refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be concave surface；
The radius of curvature of the first lens object side is R1, and the radius of curvature of the first lens image side surface is R2, Yi Jisuo
It states with a thickness of d1 on the axis of the first lens, the optics overall length of the camera optical camera lens is TTL, and meets following relationship:
-9.09≤(R1+R2)/(R1-R2)≤-2.68；
0.05≤d1/TTL≤0.19。
4. camera optical camera lens according to claim 3, which is characterized in that the camera optical camera lens meets following relationship
Formula:
-5.68≤(R1+R2)/(R1-R2)≤-3.34；
0.08≤d1/TTL≤0.15。
5. camera optical camera lens according to claim 1, which is characterized in that second lens have negative refracting power,
Object side in it is paraxial be convex surface, 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 object side
Radius is R3, and the radius of curvature of the second lens image side surface is R4, with a thickness of d3, the camera shooting on the axis of second lens
The optics overall length of optical lens is TTL, and meets following relationship:
-141.74≤f2/f≤-5.14；
7.91≤(R3+R4)/(R3-R4)≤48.75；
0.01≤d3/TTL≤0.08。
6. camera optical camera lens according to claim 5, which is characterized in that the camera optical camera lens meets following relationship
Formula:
-88.59≤f2/f≤-6.42；
12.65≤(R3+R4)/(R3-R4)≤39.00；
0.02≤d3/TTL≤0.06。
7. camera optical camera lens according to claim 1, which is characterized in that the third lens have negative refracting power,
Object side in it is paraxial be convex surface, 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 third lens is f3, the curvature of the third lens object side
Radius is R5, and the radius of curvature of the third lens image side surface is R6, with a thickness of d5, the camera shooting on the axis of the third lens
The optics overall length of optical lens is TTL, and meets following relationship:
-11.15≤f3/f≤-2.09；
0.87≤(R5+R6)/(R5-R6)≤3.91；
0.03≤d5/TTL≤0.08。
8. camera optical camera lens according to claim 7, which is characterized in that the camera optical camera lens meets following relationship
Formula:
-6.97≤f3/f≤-2.61；
1.39≤(R5+R6)/(R5-R6)≤3.12；
0.04≤d5/TTL≤0.07。
9. camera optical camera lens according to claim 1, which is characterized in that the 4th lens object side is in paraxial to be convex
Face；
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 object side
Radius is R7, and the radius of curvature of the 4th lens image side surface is R8, with a thickness of d7, the camera shooting on the axis of the 4th lens
The optics overall length of optical lens is TTL, and meets following relationship:
-11.15≤f4/f≤4.19；
-0.22≤(R7+R8)/(R7-R8)≤2.38；
0.05≤d7/TTL≤0.21。
10. camera optical camera lens according to claim 9, which is characterized in that the camera optical camera lens meets following pass
It is formula:
-6.97≤f4/f≤3.35；
-0.14≤(R7+R8)/(R7-R8)≤1.90；
0.09≤d7/TTL≤0.17。
11. camera optical camera lens according to claim 1, which is characterized in that the 5th lens have negative refracting power,
Object side in it is paraxial be convex surface, 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 object side
Radius is R9, and the radius of curvature of the 5th lens image side surface is R10, described to take the photograph with a thickness of d9 on the axis of the 5th lens
As the optics overall length of optical lens is TTL, and meet following relationship:
-8.27≤f5/f≤-1.35；
1.67≤(R9+R10)/(R9-R10)≤9.15；
0.02≤d9/TTL≤0.08。
12. camera optical camera lens according to claim 11, which is characterized in that the camera optical camera lens meets following pass
It is formula:
-5.17≤f5/f≤-1.69；
2.67≤(R9+R10)/(R9-R10)≤7.32；
0.04≤d9/TTL≤0.07。
13. camera optical camera lens according to claim 1, which is characterized in that the 6th lens have positive refracting power,
Object side in it is paraxial be convex surface, 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 object side
Radius is R11, and the radius of curvature of the 6th lens image side surface is R12, described with a thickness of d11 on the axis of the 6th lens
The optics overall length of camera optical camera lens is TTL, and meets following relationship:
0.48≤f6/f≤2.03；
-4.22≤(R11+R12)/(R11-R12)≤-0.97；
0.03≤d11/TTL≤0.12。
14. camera optical camera lens according to claim 13, which is characterized in that the camera optical camera lens meets following pass
It is formula:
0.77≤f6/f≤1.63；
-2.63≤(R11+R12)/(R11-R12)≤-1.21；
0.06≤d11/TTL≤0.10。
15. camera optical camera lens according to claim 1, which is characterized in that the 7th lens have negative refracting power,
Object side in it is paraxial be convex surface, image side surface in it is paraxial be concave surface；
The focal length of the camera optical camera lens is f, and the focal lengths of the 7th lens is f7, on the axis of the 7th lens with a thickness of
The optics overall length of d13, the camera optical camera lens are TTL, and meet following relationship:
-10.05≤f7/f≤-1.33；
0.06≤d13/TTL≤0.22。
16. camera optical camera lens according to claim 15, which is characterized in that the camera optical camera lens meets following pass
It is formula:
-6.28≤f7/f≤-1.67；
0.10≤d13/TTL≤0.17。
17. camera optical camera lens according to claim 1, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 6.93 millimeters.
18. camera optical camera lens according to claim 17, which is characterized in that the optics overall length of the camera optical camera lens
TTL is less than or equal to 6.62 millimeters.
19. camera optical camera lens according to claim 1, which is characterized in that the aperture F number of the camera optical camera lens is small
In or equal to 1.60.
20. camera optical camera lens according to claim 19, which is characterized in that the aperture F number of the camera optical camera lens
Less than or equal to 1.57.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811616007.0A CN109839722B (en) | 2018-12-27 | 2018-12-27 | Image pickup optical lens |
| JP2019149196A JP6805300B2 (en) | 2018-12-27 | 2019-08-15 | Imaging optical lens |
| PCT/CN2019/109028 WO2020134286A1 (en) | 2018-12-27 | 2019-09-29 | Camera optical lens |
| US16/675,252 US11467375B2 (en) | 2018-12-27 | 2019-11-06 | Camera optical lens |
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|---|---|---|---|
| CN201811616007.0A CN109839722B (en) | 2018-12-27 | 2018-12-27 | Image pickup optical lens |
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| CN109839722B CN109839722B (en) | 2021-07-30 |
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| CN110927930A (en) * | 2019-12-13 | 2020-03-27 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
| WO2020134286A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声通讯科技(常州)有限公司 | Camera optical lens |
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| CN203606556U (en) * | 2012-11-21 | 2014-05-21 | 康达智株式会社 | Imaging lens |
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| CN108445603A (en) * | 2018-03-13 | 2018-08-24 | 瑞声科技(新加坡)有限公司 | Camera optical camera lens |
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| US20120050892A1 (en) * | 2010-08-30 | 2012-03-01 | Ching-Lung Lai | Lens module |
| CN202886720U (en) * | 2012-07-06 | 2013-04-17 | 大立光电股份有限公司 | Optical image pickup system |
| CN203606556U (en) * | 2012-11-21 | 2014-05-21 | 康达智株式会社 | Imaging lens |
| CN105866925A (en) * | 2016-01-07 | 2016-08-17 | 瑞声科技(新加坡)有限公司 | Camera lens |
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| WO2020134286A1 (en) * | 2018-12-27 | 2020-07-02 | 瑞声通讯科技(常州)有限公司 | Camera optical lens |
| CN110927930A (en) * | 2019-12-13 | 2020-03-27 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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