CN110221411A - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN110221411A CN110221411A CN201910581784.4A CN201910581784A CN110221411A CN 110221411 A CN110221411 A CN 110221411A CN 201910581784 A CN201910581784 A CN 201910581784A CN 110221411 A CN110221411 A CN 110221411A
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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
-
- 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, disclose a kind of camera optical camera lens, the camera optical camera lens, sequentially include from object side to image side: the first lens with positive refracting power, the second lens with negative refracting power, the third lens with negative refracting power, the 4th lens with negative refracting power, and the 5th lens with positive refracting power；The focal length of 5th lens is f5, the focal length of the camera optical camera lens entirety is f, distance is d6 on the image side surface of the third lens to the axis of the object side of the 4th lens, with a thickness of d7 on the axis of 4th lens, the radius of curvature of the object side of the third lens is R5, the radius of curvature of the image side surface of the third lens is R6, meets following relationship: 1.50≤f5/f≤4.50；4.50≤d6/d7≤5.30；0.00≤(R5+R6)/(R5-R6)≤1.00.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 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, four-piece type even
It is five chips, six chip lens arrangements.However, with the development of technology and users on diversity increases, in photoreceptor
In the case that the elemental area of part constantly reduces, and requirement of the system to image quality is continuously improved, five chip lens arrangements by
Gradually appear in lens design, although five common chip lens have had preferable optical property, its focal power,
Lens spacing and lens shape setting still have certain irrationality, cause lens arrangement with favorable optical performance
Meanwhile be unable to satisfy large aperture, 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, the shooting light
Camera lens is learned, sequentially includes from object side to image side: the first lens with positive refracting power, the second lens with negative refracting power, tool
There are the third lens of negative refracting power, the 4th lens with negative refracting power, and the 5th lens with positive refracting power；Described
The focal length of five lens is f5, and the focal length of camera optical camera lens entirety is f, the image side surface of the third lens to the described 4th
Distance is d6 on the axis of the object side of lens, with a thickness of d7 on the axis of the 4th lens, the object side of the third lens
Radius of curvature is R5, and the radius of curvature of the image side surface of the third lens is R6, meets following relationship:
1.50≤f5/f≤4.50；
4.50≤d6/d7≤5.30；
0.00≤(R5+R6)/(R5-R6)≤1.00。
Preferably, with a thickness of d1, the first lens image side surface to the second lens object on the axis of first lens
Distance is d2 on the axis of side, and meets following relationship: 0.10≤d2/d1≤0.20.
Preferably, the focal length of the 4th lens is f4, and meets following relationship: -0.75≤f4/f≤- 0.50.
Preferably, the focal length of first lens is f1, and the radius of curvature of the first lens object side is R1, described the
The radius of curvature of one lens image side surface is R2, with a thickness of d1, the optics of the camera optical camera lens on the axis of first lens
Length is TTL, and meets following relationship:
0.21≤f1/f≤0.63；
-1.79≤(R1+R2)/(R1-R2)≤-0.52；
0.09≤d1/TTL≤0.33。
Preferably, the focal length of second lens is f2, and the radius of curvature of the second lens object side is R3, described the
The radius of curvature of two lens image side surfaces is R4, with a thickness of d3, the optics of the camera optical camera lens on the axis of second lens
Length is TTL, and meets following relationship:
-1.65≤f2/f≤-0.51；
0.19≤(R3+R4)/(R3-R4)≤1.53；
0.02≤d3/TTL≤0.06。
Preferably, the focal length of the third lens is f3, with a thickness of d5, the camera optical on the axis of the third lens
The optical length of camera lens is TTL, and meets following relationship:
-3.67≤f3/f≤-1.02；
0.02≤d5/TTL≤0.05。
Preferably, the radius of curvature of the 4th lens object side is R7, the radius of curvature of the 4th lens image side surface
Optical length for R8, the camera optical camera lens is TTL, and meets following relationship:
-0.92≤(R7+R8)/(R7-R8)≤4.05；
0.02≤d7/TTL≤0.06。
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 optical length of the camera optical camera lens is TTL, and meets following pass
It is formula:
-7.49≤(R9+R10)/(R9-R10)≤1.10；
0.09≤d9/TTL≤0.31。
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, and
Meet following relationship: TTL/IH≤2.00.
Preferably, the burnt number of the camera optical camera lens is FNO, and meets following relationship:
FNO≤2.40。
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: aperture S1, the first lens L1 with positive refracting power, the second lens L2 with negative refracting power, tool
There are the third lens L3, the 4th lens L4 with negative refracting power of negative refracting power and with the 5th lens L5 of positive 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 5th lens L5 is f5, the coke of the camera optical camera lens entirety
Away from for f, meeting following relationship: 1.50≤f5/f≤4.50 are, it is specified that the 5th lens L5 focal length and the camera optical
The ratio of the focal length of camera lens entirety can effectively distribute the focal power of the 5th lens L5, carry out school to the aberration of optical system
Just, and then image quality is promoted.
Defining distance on the image side surface to the axis of the object side of the 4th lens L4 of the third lens L3 is d6, described
With a thickness of d7 on the axis of 4th lens, meet following relationship: 4.50≤d6/d7≤5.30 are, it is specified that the third lens L3
The ratio of airspace distance and the 4th lens L4 thickness, facilitates within the scope of conditional between the 4th lens L4
The processing of eyeglass and the assembling of camera lens.
The radius of curvature for defining the object side of the third lens L3 is R5, the curvature of the image side surface of the third lens L3
Radius is R6, meet following relationship: 0.00≤(R5+R6)/(R5-R6)≤1.00 is, it is specified that the shape of the third lens L3
Shape can mitigate the deviation degree that light passes through eyeglass, effectively reduce aberration in conditional prescribed limit.
It defines on the axis of the first lens L1 with a thickness of d1, the first lens L1 image side surface to the second lens L2
Distance is d2 on the axis of object side, and meets following relationship: 0.10≤d2/d1≤0.20, when d2/d1 meets condition, is had
Help the aberration correction of optical system, and then promotes image quality.
The focal length for defining the 4th lens L4 is f4, and the focal length of the camera optical camera lens entirety is f, and is met following
Relational expression: -0.75≤f4/f≤- 0.50 is, it is specified that the coke of the 4th lens L4 focal length and the camera optical camera lens entirety
Away from ratio, Performance of Optical System is helped to improve within the scope of conditional.
The focal length for defining the first lens L1 is f1, and the focal length of the camera optical camera lens entirety is f, meets following pass
Be formula: 0.21≤f1/f≤0.63 is, it is specified that the positive refracting power of the first lens L1 and the ratio of whole focal length.Defined
When in range, the first lens L1 have positive refracting power appropriate, be conducive to reduce system aberration, while be conducive to camera lens to
Ultrathin, wide angle development.
The radius of curvature for defining the first lens object side is R1, and the radius of curvature of the first lens image side surface is
R2, and meet following relationship: -1.79≤(R1+R2)/(R1-R2)≤- 0.52, rationally control the shape of the first lens L1
Shape enables the first lens L1 effectively to correct system spherical aberration.
It defines with a thickness of d1 on the axis of the first lens L1, the optics overall length of the camera optical camera lens is TTL, and full
Sufficient following relationship: 0.09≤d1/TTL≤0.33 is advantageously implemented ultrathin.
The focal length for defining the camera optical camera lens entirety is f, and the focal length of the second lens L2 is f2, meets following pass
Be formula: -1.65≤f2/f≤- 0.51 is conducive to rectify by controlling the negative power of the second lens L2 in zone of reasonableness
The aberration of positive optical system.
The radius of curvature for defining the second lens L2 object side is R3, the radius of curvature of the second lens L2 image side surface
For R4, and meet following relationship: 0.19≤(R3+R4)/(R3-R4)≤1.53, it is specified that the shape of the second lens L2,
When in range, as camera lens develops to ultra-thin wide angle, be conducive to the axis colouring Aberration Problem that makes corrections.
It defines with a thickness of d3 on the axis of the second lens L2, the optics overall length of the camera optical camera lens is TTL, and full
Sufficient following relationship: 0.02≤d3/TTL≤0.06 is advantageously implemented ultrathin.
The focal length for defining the third lens L3 is f3, and meets following relationship: -3.67≤f3/f≤- 1.02 passes through
The reasonable distribution of focal power, so that system has preferable image quality and lower sensibility.
It defines with a thickness of d5 on the axis of the third lens L3, the optics overall length of the camera optical camera lens is TTL, and full
Sufficient following relationship: 0.02≤d5/TTL≤0.05 is advantageously implemented ultrathin.
The radius of curvature for defining the 4th lens L4 object side is R7, the radius of curvature of the 4th lens L4 image side surface
For R8, and meet following relationship: -0.92≤(R7+R8)/(R7-R8)≤4.05 is, it is specified that the shape of the 4th lens L4
Shape when in condition and range, as ultra-thin wide angle develops, is conducive to the problems such as drawing the aberration at angle outside correction axis.
It defines on the axis of the 4th lens L4 with a thickness of d7, and meets following relationship: 0.02≤d7/TTL≤0.06,
The optics overall length of the camera optical camera lens is TTL, is advantageously implemented ultrathin.
The radius of curvature for defining the 5th lens L5 object side is R9, the radius of curvature of the 5th lens L5 image side surface
For R10, and meet following relationship: -7.49≤(R9+R10)/(R9-R10)≤1.10, it is specified that be the 5th lens L5
Shape, when in condition and range, with ultra-thin wide angle develop, be conducive to make corrections axis outside draw angle aberration the problems such as.
It defines with a thickness of d9 on the axis of the 5th lens L5, the optics overall length of the camera optical camera lens is TTL, and full
Sufficient following relationship: 0.09≤d9/TTL≤0.31 is advantageously implemented ultrathin.
In present embodiment, the optics overall length of the camera optical camera lens is TTL, and the image height of the camera optical camera lens is
IH, and meet following relationship: TTL/IH≤2.00 are advantageously implemented ultrathin.
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.
In present embodiment, the burnt number of the camera optical camera lens is FNO, and meets following relationship: FNO≤2.40,
It is advantageously implemented large aperture, so that imaging performance is good.
When meeting above-mentioned relation, so that camera optical camera lens 10 realizes while with good optical imaging performance,
Also it is able to satisfy the design requirement of large aperture, ultrathin；According to the characteristic of the optical lens 10, which is particularly suitable for
The mobile phone camera lens component and WEB pick-up lens being made of photographing elements such as CCD, CMOS of high pixel.
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；
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；
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, A18, A20 are asphericity coefficients.
Y=(x2/R)/[1+{1-(k+1)(x2/R2)}1/2]+A4x4+A6x6+A8x8+A10x10+A12x12+A14x14+
A16x16+A18x18+A20x20 (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 | Point of inflexion position 4 | Point of inflexion position 5 | |
| P1R1 | 1 | 1.565 | 0 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 | 0 | 0 | 0 |
| P2R1 | 2 | 1.335 | 1.365 | 0 | 0 | 0 |
| P2R2 | 1 | 0.555 | 0 | 0 | 0 | |
| P3R1 | 0 | 0 | 0 | 0 | 0 | 0 |
| P3R2 | 2 | 0.415 | 0.645 | 0 | 0 | 0 |
| P4R1 | 3 | 0.375 | 1.755 | 2.025 | 0 | 0 |
| P4R2 | 1 | 0.685 | 0 | 0 | 0 | 0 |
| P5R1 | 5 | 0.365 | 0.635 | 1.065 | 2.185 | 2.605 |
| P5R2 | 3 | 0.205 | 2.315 | 2.695 | 0 | 0 |
[table 4]
Fig. 2 shows light the taking the photograph by first embodiment that wavelength is 470nm, 510nm, 550nm, 610nm and 650nm
As the axial aberration schematic diagram after optical lens 10, it is 470nm, 510nm, 550nm, 610nm and 650nm that Fig. 3, which shows wavelength,
Camera optical camera lens 10 of the light by first embodiment after ratio chromatism, schematic diagram.Fig. 4 is then shown, and wavelength is
The curvature of field and distortion schematic diagram after camera optical camera lens 10 of the light of 550nm by first embodiment, the curvature of field S of Fig. 4 is arc
Swear the curvature of field in direction, T is the curvature of field of meridian direction.
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 3.150mm, and full filed image height is
3.290mm, the field angle of diagonal is 46.28 °, 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 | Point of inflexion position 3 | |
| P1R1 | 1 | 1.535 | 0 | 0 |
| P1R2 | 2 | 0.375 | 0.815 | 0 |
| P2R1 | 2 | 0.075 | 0.905 | 0 |
| P2R2 | 3 | 0.635 | 0.835 | 1.045 |
| P3R1 | 0 | 0 | 0 | 0 |
| P3R2 | 0 | 0 | 0 | 0 |
| P4R1 | 2 | 1.395 | 2.175 | 0 |
| P4R2 | 1 | 0.715 | 0 | 0 |
| P5R1 | 2 | 0.915 | 2.315 | 0 |
| P5R2 | 1 | 2.525 | 0 | 0 |
[table 8]
| Stationary point number | Stationary point position 1 | Stationary point position 2 | |
| P1R1 | 0 | 0 | 0 |
| P1R2 | 0 | 0 | 0 |
| P2R1 | 2 | 0.115 | 1.135 |
| P2R2 | 0 | 0 | 0 |
| P3R1 | 0 | 0 | 0 |
| P3R2 | 0 | 0 | 0 |
| P4R1 | 0 | 0 | 0 |
| P4R2 | 1 | 1.415 | 0 |
| P5R1 | 1 | 1.205 | 0 |
| P5R2 | 1 | 2.725 | 0 |
Fig. 6 shows light the taking the photograph by second embodiment that wavelength is 470nm, 510nm, 550nm, 610nm and 650nm
As the axial aberration schematic diagram after optical lens 20, it is 470nm, 510nm, 550nm, 610nm and 650nm that Fig. 7, which shows wavelength,
Camera optical camera lens 20 of the light by second embodiment after ratio chromatism, schematic diagram.It is 550nm that Fig. 8, which then shows wavelength,
Camera optical camera lens 20 of the light by second embodiment after the curvature of field and distortion schematic diagram.
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 3.150mm, and full filed image height is
3.270mm, the field angle of diagonal is 46.26 °, 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 | 1 | 1.545 | 0 | 0 |
| P1R2 | 0 | 0 | 0 | 0 |
| P2R1 | 1 | 0.915 | 0 | 0 |
| P2R2 | 3 | 0.555 | 0.895 | 0.985 |
| P3R1 | 0 | 0 | 0 | 0 |
| P3R2 | 0 | 0 | 0 | 0 |
| P4R1 | 2 | 1.365 | 2.185 | 0 |
| P4R2 | 1 | 0.845 | 0 | 0 |
| P5R1 | 2 | 0.915 | 2.315 | 0 |
| P5R2 | 1 | 2.535 | 0 | 0 |
[table 12]
Figure 10 shows the light that wavelength is 470nm, 510nm, 550nm, 610nm and 650nm and passes through third embodiment
Axial aberration schematic diagram after camera optical camera lens 30, Figure 11 show wavelength be 470nm, 510nm, 550nm, 610nm and
Ratio chromatism, schematic diagram after camera optical camera lens 30 of the light of 650nm by third embodiment.Figure 12 then shows wavelength
For the curvature of field and distortion schematic diagram after camera optical camera lens 30 of the light by third embodiment of 550nm.
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 3.150mm, and full filed image height is
3.270mm, the field angle of diagonal is 46.06 °, 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]
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 positive refracting power, the second lens with negative refracting power, the third lens with negative refracting power have negative refracting power
The 4th lens, and the 5th lens with positive refracting power；
The focal length of 5th lens is f5, and the focal length of the camera optical camera lens entirety is f, the image side surface of the third lens
Distance is d6 on to the axis of the object side of the 4th lens, with a thickness of d7, the third lens on the axis of the 4th lens
The radius of curvature of object side be R5, the radius of curvature of the image side surface of the third lens is R6, meet following relationship:
1.50≤f5/f≤4.50；
4.50≤d6/d7≤5.30；
0.00≤(R5+R6)/(R5-R6)≤1.00。
2. camera optical camera lens according to claim 1, which is characterized in that with a thickness of d1 on the axis of first lens,
Distance is d2 on the first lens image side surface to the axis of the second lens object side, and meets following relationship: 0.10≤
d2/d1≤0.20。
3. camera optical camera lens according to claim 1, which is characterized in that the focal length of the 4th lens is f4, and full
Sufficient following relationship: -0.75≤f4/f≤- 0.50.
4. camera optical camera lens according to claim 1, which is characterized in that the focal length of first lens is f1, described
The radius of curvature of first lens object side is R1, and the radius of curvature of the first lens image side surface is R2, first lens
With a thickness of d1 on axis, the optical length of the camera optical camera lens is TTL, and meets following relationship:
0.21≤f1/f≤0.63；
-1.79≤(R1+R2)/(R1-R2)≤-0.52；
0.09≤d1/TTL≤0.33。
5. camera optical camera lens according to claim 1, which is characterized in that the focal length of second lens is f2, described
The radius of curvature of second lens object side is R3, and the radius of curvature of the second lens image side surface is R4, second lens
With a thickness of d3 on axis, the optical length of the camera optical camera lens is TTL, and meets following relationship:
-1.65≤f2/f≤-0.51；
0.19≤(R3+R4)/(R3-R4)≤1.53；
0.02≤d3/TTL≤0.06。
6. camera optical camera lens according to claim 1, which is characterized in that the focal length of the third lens is f3, described
With a thickness of d5 on the axis of the third lens, the optical length of the camera optical camera lens is TTL, and meets following relationship:
-3.67≤f3/f≤-1.02；
0.02≤d5/TTL≤0.05。
7. camera optical camera lens according to claim 1, which is characterized in that 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, and the optical length of the camera optical camera lens is TTL, and is met
Following relationship:
-0.92≤(R7+R8)/(R7-R8)≤4.05；
0.02≤d7/TTL≤0.06。
8. 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 optical length for learning camera lens is TTL, and meets following relationship:
-7.49≤(R9+R10)/(R9-R10)≤1.10；
0.09≤d9/TTL≤0.31。
9. 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, and meet following relationship: TTL/IH≤2.00.
10. camera optical camera lens according to claim 1, which is characterized in that the burnt number of the camera optical camera lens is
FNO, and meet following relationship:
FNO≤2.40。
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