CN110361842A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN110361842A CN110361842A CN201910581778.9A CN201910581778A CN110361842A CN 110361842 A CN110361842 A CN 110361842A CN 201910581778 A CN201910581778 A CN 201910581778A CN 110361842 A CN110361842 A CN 110361842A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
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Abstract
The present invention provides a kind of camera optical camera lenses, sequentially include from object side to image side: the first lens, the second lens, the third lens, the 4th lens, the 5th lens；The focal length of camera optical camera lens is f, the focal length of first lens is f1, the focal length of the third lens is f3, the focal length of 4th lens is f4, the focal length of 5th lens is f5, the radius of curvature of 4th lens object side is R7, and the 4th lens image side surface radius of curvature be R8, with a thickness of d1 on the axis of first lens, distance d2 on the axis of first lens image side surface to the second lens object side, with a thickness of d3 on the axis of second lens, distance d4 on the axis of the third lens image side surface to the 4th lens object side meets following relationship: -8.50≤(f1+f3+f5)/f≤- 6.50；0.00≤(R7+R8)/(R7-R8)≤1.00；1.20≤d2/d1≤2.00；0.80≤f4/f≤1.50；3.20≤d3/d4≤5.00.While camera optical camera lens provided by the invention has favorable optical performance, meet the design requirement of large aperture, wide angle, ultrathin.
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 De ν ice, 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, quadruple lenses
Structure.However, with the development of technology and users on diversity increases, constantly contracting in the elemental area of sensor devices
It is small, and in the case where requirement continuous improvement of the system to image quality, five chip lens arrangements occur gradually over lens design and work as
In, although five common chip lens have had preferable optical property, its focal power, lens spacing and lens shape
Being arranged still has certain irrationality, causes lens arrangement while with favorable optical performance, is unable to satisfy big light
Circle, ultrathin, wide angle design requirement.
[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 lenses, with favorable optical performance
While, meet large aperture, ultrathin, wide angle design requirement.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, from object side
Sequentially include to image side: the first lens with negative refracting power, the second lens with positive refracting power, the with negative refracting power
Three lens, the 4th lens with positive refracting power, and the 5th lens with negative refracting power；
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 focal length of the 5th lens is f5, the radius of curvature of the 4th lens object side
For R7, the radius of curvature of the 4th lens image side surface is R8, with a thickness of d1, first lens on the axis of first lens
Distance is d2 on image side surface to the axis of the second lens object side, with a thickness of d3 on the axis of second lens, described second
Distance is d4 on lens image side surface to the axis of the third lens object side, meets following relationship:
-8.50≤(f1+f3+f5)/f≤-6.50；
0.00≤(R7+R8)/(R7-R8)≤1.00；
1.20≤d2/d1≤2.00；
0.80≤f4/f≤1.50；
3.20≤d3/d4≤5.00。
Preferably, the radius of curvature of the second lens object side is R3, the radius of curvature of the second lens image side surface
For R4, and meet following relationship:
0.20≤(R3+R4)/(R3-R4)≤0.80。
Preferably, the radius of curvature of the first lens object side is R1, the radius of curvature of the first lens image side surface
Optics overall length for R2, the camera optical camera lens is TTL, meets following relationship:
-4.03≤f1/f≤-1.28；
0.66≤(R1+R2)/(R1-R2)≤2.35；
0.02≤d1/TTL≤0.09。
Preferably, the focal length of second lens is f2, and the optics overall length of the camera optical camera lens is TTL, and is met
Following relationship:
0.55≤f2/f≤2.74；
0.06≤d3/TTL≤0.19。
Preferably, the radius of curvature of the third lens object side is R5, the radius of curvature of the third lens image side surface
For R6, with a thickness of d5 on the axis of the third lens, the optics overall length of the camera optical camera lens is TTL, and meets following pass
It is formula:
-9.26≤f3/f≤-1.64；
1.44≤(R5+R6)/(R5-R6)≤8.58；
0.02≤d5/TTL≤0.10。
Preferably, with a thickness of d7 on the axis of the 4th lens, the optics overall length of the camera optical camera lens is TTL, full
Sufficient following relationship:
0.09≤d7/TTL≤0.35。
Preferably, the radius of curvature of the 5th lens object side is R9, the radius of curvature of the 5th lens image side surface
For R10, with a thickness of d9 on the axis of the 5th lens, the optics overall length of the camera optical camera lens is TTL, meets following relationship
Formula:
-4.31≤f5/f≤-1.12；
1.61≤(R9+R10)/(R9-R10)≤5.40；
0.05≤d9/TTL≤0.17。
Preferably, the optics overall length of the camera optical camera lens is TTL, and the image height of the camera optical camera lens is IH, full
Sufficient following relationship:
TTL/IH≤1.90。
Preferably, the burnt number of the camera optical camera lens is Fno, meets following relationship:
Fno≤2.25。
Preferably, the combined focal length of first lens and second lens is f12, meets following relationship:
0.97≤f12/f≤11.41。
The beneficial effects of the present invention are: camera optical camera lens according to the present invention has favorable optical performance, and has
Large aperture, wide angle, the characteristic of ultrathin, are particularly suitable for the mobile phone being made of photographing elements such as CCD, CMOS of high pixel
Cameral lens assembly and WEB pick-up lens.
[Detailed description of the invention]
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is the structural schematic diagram of the camera optical camera lens of embodiment one；
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 embodiment two；
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 embodiment three；
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)
Attached drawing is please referred to, 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 five lens.Specifically, the camera optical camera lens 10, by object
Side to image side sequentially includes: the first lens L1, aperture S1, the second lens L2 with positive refracting power, tool with negative refracting power
There are the third lens L3, the 4th lens L4 with positive refracting power of negative refracting power and with the 5th lens L5 of negative refracting power.
It may be provided with the optical elements such as optical filtering piece (filter) GF between 5th lens L5 and image planes Si.
In the present embodiment, the focal length for defining the camera optical camera lens 10 is f, and the focal length of the first lens L1 is
The focal length of f1, the third lens L3 are f3, and the focal length of the 5th lens L5 is f5, meet following relationship: -8.50≤
(f1+f3+f5)/f≤-6.50；Define the focal length of the described first saturating L1 mirror, the third lens L3 and the 5th lens L5
The sum of ratio with the focal length of the camera optical camera lens 10, when within the scope of conditional, can appropriately configured first lens L1,
The focal length of the third lens L3 and the 5th lens L5 are corrected the aberration of optical system, and then promote image quality.
The radius of curvature of the 4th lens L4 object side is the radius of curvature of R7 and the 4th lens L4 image side surface
For R8, meet following relationship: 0.00≤(R7+R8)/(R7-R8)≤1.00；Define the shape of the 4th lens L4, Ke Yihuan
The deviation degree for passing through eyeglass with light, effectively reduces aberration.
With a thickness of d1, the first lens L1 image side surface to the second lens L2 object side on the axis of the first lens L1
Distance is d2 on the axis in face, meets following relationship: 1.20≤d2/d1≤2.00；On the axis for defining the first lens L1
The ratio of distance on thickness and the first lens L1 image side surface to the axis of the second lens L2 object side, in conditional range
Inside facilitate the processing of eyeglass and the assembling of camera lens.
The focal length of the 4th lens L4 is f4, meets following relationship: 0.80≤f4/f≤1.50；Define described
The ratio of the focal length of the focal length of four lens L4 and the camera optical camera lens 10, helps to improve optical system within the scope of conditional
System performance.
With a thickness of d3, the second lens L2 image side surface to the third lens L3 object side on the axis of the second lens L2
Distance is d4 on the axis in face, meets following relationship: 3.20≤d3/d4≤5.00；On the axis for defining the second lens L2
The ratio of distance on thickness and the second lens L2 image side surface to the axis of the third lens L3 object side, in condition and range
Be conducive to compressibility overall length.
The radius of curvature for defining the second lens L2 object side is the curvature of R3 and the second lens L2 image side surface
Radius is R4, and meets following relationship: 0.20≤(R3+R4)/(R3-R4)≤0.80；Define the second lens L2's
Shape is conducive to machining eyeglass within the scope of conditional.
The focal length for defining the first lens L1 is f1, meets following relationship: -4.03≤f1/f≤- 1.28；It defines
The negative refracting power of first lens L1 and the ratio of whole focal length.Within the limits prescribed, the first lens L1 has appropriate
Negative refracting power is conducive to reduce system aberration, while being conducive to camera lens and developing to ultrathin, wide angle.
The radius of curvature of first lens L1 object side is R1, and the radius of curvature of the first lens L1 image side surface is
R2 meets following relationship: 0.66≤(R1+R2)/(R1-R2)≤2.35；The rationally shape of the first lens L1 of control, so that the
One lens L1 can effectively correct system spherical aberration.
The optics overall length of the optical camera lens 10 is TTL, with a thickness of d1 on the axis of the first lens L1, under satisfaction
Column relational expression: 0.02≤d1/TTL≤0.09 is advantageously implemented ultrathin.
The focal length for defining the second lens L2 is f2, meets following relationship: 0.55≤f2/f≤2.74, by by the
The positive light coke control of two lens L2 is conducive to the aberration for correcting optical system in zone of reasonableness.
With a thickness of d3 on the axis of the second lens L2, meet following relationship: 0.06≤d3/TTL≤0.19 is conducive to
Realize ultrathin.
The focal length for defining the third lens L3 is f3, and meet following relationship: -9.26≤f3/f≤- 1.64 passes through light
The reasonable distribution of focal power, so that system has preferable image quality and lower sensibility.
The radius of curvature of the third lens L3 object side is the radius of curvature of R5 and the third lens L3 image side surface
For R6, meet following relationship: 1.44≤(R5+R6)/(R5-R6)≤8.58；The shape for defining the third lens, in conditional
In prescribed limit, the deviation degree that light passes through eyeglass can be mitigated, aberration is effectively reduced.
With a thickness of d5 on the axis of the third lens L3, meet following relationship: 0.02≤d5/TTL≤0.10 is conducive to
Realize ultrathin.
It defines with a thickness of d7 on the axis of the 4th lens L4, meet following relationship: 0.09≤d7/TTL≤0.35 has
Conducive to realization ultrathin.
The focal length for defining the 5th lens L5 is f5, meets following relationship: -4.31≤f5/f≤- 1.12.To the 5th
The restriction of lens L5 can effectively make the light angle of pick-up lens 10 gentle, reduce tolerance sensitivities.
The radius of curvature of the 5th lens L5 object side is the radius of curvature of R9 and the 5th lens L5 image side surface
For R10, and meet following relationship: 1.61≤(R9+R10)/(R9-R10)≤5.40.The shape of the 5th lens L5 is defined,
When in range, with ultrathin, the development of wide angle, be conducive to the problems such as drawing the aberration at angle outside correction axis.
With a thickness of d9 on the axis of the 5th lens L5, meet following relationship: 0.05≤d9/TTL≤0.17 is conducive to
Realize ultrathin.
Further, the optics overall length for defining the camera optical camera lens 10 is TTL, the picture of the camera optical camera lens 10
A height of IH, meets following relationship: TTL/IH≤1.90 are advantageously implemented ultrathin.
The burnt number for defining the camera optical camera lens 10 is the ratio of Fno namely effective focal length and entrance pupil aperture, is met
Following relationship: Fno≤2.25 are advantageously implemented large aperture, so that imaging performance is good.
The combined focal length for defining the first lens L1 and the second lens L2 is f12, meets following relationship: 0.97
≤ f12/f≤11.41 can eliminate aberration and the distortion of camera optical camera lens 10 in condition and range, and can suppress camera optical
Rear lens focus is away from maintenance image lens system group miniaturization.
When meeting above-mentioned relation, so that camera optical camera lens 10 realizes while with good optical imaging performance,
Also be able to satisfy large aperture, ultrathin, wide angle design requirement；According to the characteristic of the optical lens 10, the optical lens 10 is outstanding
It is suitable for the mobile phone camera lens component being made of photographing elements such as CCD, CMOS of high pixel and WEB pick-up lens.
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: optics overall length (distance on the object side to the axis of imaging surface of the first 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；
R11: the radius of curvature of the object side of optical filtering piece GF；
R12: 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 optical filtering piece GF；
D11: thickness on the axis of optical filtering piece GF；
D12: 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；
Ndg: the refractive index of the d line of optical filtering piece GF；
ν d: Abbe number；
The Abbe number of 1: the first lens L1 of ν；
The Abbe number of 2: the second lens L2 of ν；
ν 3: the Abbe number of the third lens L3；
The Abbe number of 4: the four lens L4 of ν；
The Abbe number of 5: the five lens L5 of ν；
ν g: 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.
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, P1R1, P1R2 respectively represent object side and the image side surface of the first lens L1, and P2R1, P2R2 respectively represent
The object side of two lens L2 and image side surface, P3R1, P3R2 respectively represent object side and the image side surface of the third lens L3, P4R1,
P4R2 respectively represents object side and the image side surface of the 4th lens L4, P5R1, P5R2 respectively represent the 5th lens L5 object side and
Image side surface." point of inflexion position " field corresponding data is the point of inflexion set by each lens surface to 10 optical axis of camera optical camera lens
Vertical range." stationary point position " field corresponding data is stationary point set by each lens surface to 10 optical axis of camera optical camera lens
Vertical range.
[table 3]
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| P1R1 | 1 | 0.735 | 0 | 0 |
| P1R2 | 0 | 0 | 0 | 0 |
| P2R1 | 1 | 0.505 | 0 | 0 |
| P2R2 | 0 | 0 | 0 | 0 |
| P3R1 | 2 | 0.175 | 0.695 | 0 |
| P3R2 | 2 | 0.305 | 0.665 | 0 |
| P4R1 | 1 | 1.025 | 0 | 0 |
| P4R2 | 2 | 0.875 | 1.145 | 0 |
| P5R1 | 3 | 0.295 | 1.175 | 1.335 |
| P5R2 | 2 | 0.435 | 1.835 | 0 |
[table 4]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| P1R1 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 |
| P2R1 | 0 | 0 | 0 |
| P2R2 | 0 | 0 | 0 |
| P3R1 | 1 | 0.315 | 0 |
| P3R2 | 0 | 0 | 0 |
| P4R1 | 0 | 0 | 0 |
| P4R2 | 2 | 1.105 | 1.165 |
| P5R1 | 1 | 0.555 | 0 |
| P5R2 | 1 | 1.035 | 0 |
Fig. 2, Fig. 3 respectively illustrate shooting light of the light Jing Guo first embodiment that wavelength is 486nm, 588nm and 656nm
Axial image and ratio chromatism, schematic diagram after learning camera lens 10.Fig. 4 then shows the light that wavelength is 588nm and passes through first embodiment
Camera optical camera lens 10 after the curvature of field and distortion schematic diagram, the curvature of field S of Fig. 4 is the curvature of field in sagitta of arc direction, and T is meridian direction
The curvature of field.
The table 13 occurred afterwards show in each embodiment one, two, three in various numerical value and conditional as defined in parameter institute
Corresponding 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 0.896mm, and full filed image height is
2.297mm, the field angle of diagonal is 104.80 °, so that 10 wide angle of camera optical camera lens, ultrathin, axis
Upper, the outer chromatic aberation of axis sufficiently makes corrections, and has outstanding optical signature.
(second embodiment)
Second embodiment is essentially identical with first embodiment, and symbol meaning is identical with first embodiment, this second
The structure type of the camera optical camera lens 20 of embodiment please join shown in Fig. 5, only list difference below.
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 | |
| P1R1 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 |
| P2R1 | 1 | 0.415 | 0 |
| P2R2 | 0 | 0 | 0 |
| P3R1 | 2 | 0.185 | 0.715 |
| P3R2 | 2 | 0.305 | 0.825 |
| P4R1 | 1 | 0.965 | 0 |
| P4R2 | 2 | 0.955 | 1.085 |
| P5R1 | 1 | 0.325 | 0 |
| P5R2 | 2 | 0.455 | 1.665 |
[table 8]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| P1R1 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 |
| P2R1 | 0 | 0 | 0 |
| P2R2 | 0 | 0 | 0 |
| P3R1 | 1 | 0.325 | 0 |
| P3R2 | 2 | 0.685 | 0.895 |
| P4R1 | 0 | 0 | 0 |
| P4R2 | 0 | 0 | 0 |
| P5R1 | 1 | 0.615 | 0 |
| P5R2 | 1 | 1.095 | 0 |
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 then shows the light that wavelength is 588nm and passes through the second embodiment party
The curvature of field and distortion schematic diagram after the camera optical camera lens 20 of formula, the curvature of field S of Fig. 8 is the curvature of field in sagitta of arc direction, and T is meridian direction
The curvature of field.
Following table 13 lists the numerical value that each conditional is corresponded in present embodiment according to the above conditions.Obviously, this reality
The camera optical camera lens 20 for applying mode meets above-mentioned conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens 20 are 0.820mm, and full filed image height is
2.297mm, the field angle of diagonal is 107.40 °, so that 20 wide angle of camera optical camera lens, ultrathin, axis
Upper, the outer chromatic aberation of axis sufficiently makes corrections, and has outstanding optical signature.
(third embodiment)
Third embodiment and first embodiment are essentially identical, and symbol meaning is identical with first embodiment, the third
The structure type of the camera optical camera lens 30 of embodiment please join shown in Fig. 9, only list difference below.
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]
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | Point of inflexion position 3 | |
| P1R1 | 3 | 0.745 | 0.785 | 0.815 |
| P1R2 | 0 | 0 | 0 | 0 |
| P2R1 | 0 | 0 | 0 | 0 |
| P2R2 | 0 | 0 | 0 | 0 |
| P3R1 | 1 | 0.155 | 0 | 0 |
| P3R2 | 1 | 0.265 | 0 | 0 |
| P4R1 | 1 | 1.015 | 0 | 0 |
| P4R2 | 2 | 0.855 | 1.125 | 0 |
| P5R1 | 3 | 0.295 | 1.165 | 1.325 |
| P5R2 | 2 | 0.455 | 1.815 | 0 |
[table 12]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| P1R1 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 |
| P2R1 | 0 | 0 | 0 |
| P2R2 | 0 | 0 | 0 |
| P3R1 | 1 | 0.285 | 0 |
| P3R2 | 1 | 0.555 | 0 |
| P4R1 | 0 | 0 | 0 |
| P4R2 | 2 | 1.105 | 1.145 |
| P5R1 | 1 | 0.555 | 0 |
| P5R2 | 2 | 1.125 | 1.965 |
Figure 10, Figure 11 respectively illustrate light the taking the photograph through process third embodiment that wavelength is 486nm, 588nm and 656nm
As the axial aberration and ratio chromatism, schematic diagram after optical lens 30.Figure 12 then shows the light that wavelength is 588nm and passes through third
The curvature of field and distortion schematic diagram after the camera optical camera lens 30 of embodiment, the curvature of field S of Figure 12 is the curvature of field in sagitta of arc direction, and T is
The curvature of field of meridian direction.
Following table 13 lists the numerical value that each conditional is corresponded in present embodiment according to the above conditions.Obviously, this reality
The camera optical camera lens 30 for applying mode meets above-mentioned conditional.
In the present embodiment, the Entry pupil diameters of the camera optical camera lens 30 are 0.816mm, and full filed image height is
2.297mm, the field angle of diagonal is 104.60 °, so that 30 wide angle of camera optical camera lens, ultrathin, axis
Upper, the outer chromatic aberation of axis sufficiently makes corrections, and has outstanding optical signature.
[table 13]
| Parameter and conditional | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| f | 1.981 | 1.812 | 1.803 |
| f1 | -3.851 | -3.647 | -3.462 |
| f2 | 2.185 | 3.315 | 2.459 |
| f3 | -7.019 | -8.389 | -4.446 |
| f4 | 1.980 | 1.553 | 1.610 |
| f5 | -3.335 | -3.254 | -3.882 |
| f12 | 3.859 | 13.780 | 5.490 |
| (f1+f3+f5)/f | -7.17 | -8.44 | -6.54 |
| f4/f | 1.00 | 0.86 | 0.89 |
| (R7+R8)/(R7-R8) | 0.99 | 0.55 | 0.10 |
| d2/d1 | 1.36 | 1.94 | 1.22 |
| d3/d4 | 4.11 | 4.97 | 3.29 |
| Fno | 2.21 | 2.21 | 2.21 |
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 (10)
1. a kind of camera optical camera lens, which is characterized in that the camera optical camera lens sequentially includes: having from object side to image side
First lens of negative refracting power, the second lens with positive refracting power, the third lens with negative refracting power have positive refracting power
The 4th lens, and the 5th lens with negative refracting power；
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 focal length of the 5th lens is f5, and the radius of curvature of the 4th lens object side is
R7, the radius of curvature of the 4th lens image side surface are R8, with a thickness of d1, the first lens picture on the axis of first lens
Distance is d2 on side to the axis of the second lens object side, and with a thickness of d3 on the axis of second lens, described second thoroughly
Distance is d4 on mirror image side to the axis of the third lens object side, meets following relationship:
-8.50≤(f1+f3+f5)/f≤-6.50；
0.00≤(R7+R8)/(R7-R8)≤1.00；
1.20≤d2/d1≤2.00；
0.80≤f4/f≤1.50；
3.20≤d3/d4≤5.00。
2. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the second lens object side
Radius of curvature for R3, the second lens image side surface is R4, and meets following relationship:
0.20≤(R3+R4)/(R3-R4)≤0.80。
3. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the first lens object side
For R1, the radius of curvature of the first lens image side surface is R2, and the optics overall length of the camera optical camera lens is TTL, under satisfaction
Column relational expression:
-4.03≤f1/f≤-1.28；
0.66≤(R1+R2)/(R1-R2)≤2.35；
0.02≤d1/TTL≤0.09。
4. camera optical camera lens according to claim 1, which is characterized in that the focal length of second lens is f2, described
The optics overall length of camera optical camera lens is TTL, and meets following relationship:
0.55≤f2/f≤2.74；
0.06≤d3/TTL≤0.19。
5. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the third lens object side
For R5, the radius of curvature of the third lens image side surface is R6, with a thickness of d5, the camera optical on the axis of the third lens
The optics overall length of camera lens is TTL, and meets following relationship:
-9.26≤f3/f≤-1.64；
1.44≤(R5+R6)/(R5-R6)≤8.58；
0.02≤d5/TTL≤0.10。
6. camera optical camera lens according to claim 1, which is characterized in that with a thickness of d7 on the axis of the 4th lens,
The optics overall length of the camera optical camera lens is TTL, meets following relationship:
0.09≤d7/TTL≤0.35。
7. camera optical camera lens according to claim 1, which is characterized in that the radius of curvature of the 5th lens object side
For R9, the radius of curvature of the 5th lens image side surface is R10, with a thickness of d9, the shooting light on the axis of the 5th lens
The optics overall length for learning camera lens is TTL, meets following relationship:
-4.31≤f5/f≤-1.12；
1.61≤(R9+R10)/(R9-R10)≤5.40；
0.05≤d9/TTL≤0.17。
8. camera optical camera lens according to claim 1, which is characterized in that the optics overall length of the camera optical camera lens is
The image height of TTL, the camera optical camera lens are IH, meet following relationship:
TTL/IH≤1.90。
9. camera optical camera lens according to claim 1, which is characterized in that the burnt number of the camera optical camera lens is Fno,
Meet following relationship:
Fno≤2.25。
10. camera optical camera lens according to claim 1, which is characterized in that first lens and second lens
Combined focal length be f12, meet following relationship:
0.97≤f12/f≤11.41。
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| CN111158126A (en) * | 2020-04-02 | 2020-05-15 | 瑞声通讯科技(常州)有限公司 | Image pickup optical lens |
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