CN107422454B - Camera optical camera lens - Google Patents
Camera optical camera lens Download PDFInfo
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- CN107422454B CN107422454B CN201710591768.4A CN201710591768A CN107422454B CN 107422454 B CN107422454 B CN 107422454B CN 201710591768 A CN201710591768 A CN 201710591768A CN 107422454 B CN107422454 B CN 107422454B
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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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
- G02B1/041—Lenses
-
- 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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- Optics & Photonics (AREA)
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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: aperture, the first lens, the second lens, the third lens, the 4th lens and the 5th lens by object side to image side；The camera optical camera lens meets following relationship: 0.3 < f1/f < 0.95, -1.5 < f2/f < -0.5,0.5 < f3/f < 1.5, -0.25 < f4/f < -0.75, -5.5 < f5/f < -3, f/r1 < 4.0.Camera optical camera lens provided by the invention is able to satisfy the design requirement of lower TTL.
Description
Technical field
The present invention relates to field of optical lens, in particular to a kind of camera optical 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 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 can correct optical system major part optical aberration, but it is not easy to meet low light
Learn the design requirement of overall length (Total Track Length, TTL).
Summary of the invention
In view of the above-mentioned problems, being able to satisfy the design of low TTL the purpose of the present invention is to provide a kind of camera optical camera lens
It is required that.
In order to solve the above technical problems, embodiments of the present invention provide a kind of camera optical camera lens, by object side to picture
Side sequentially includes: an aperture, and first lens with positive refracting power, second lens with negative refracting power, one with negative
The third lens of refracting power, the 4th lens and the 5th lens with negative refracting power with positive refracting power；Entirety is taken the photograph
As the focal length of optical lens is f, the focal lengths of first lens is f1, and the focal length of second lens is f2, and the third is saturating
The focal length of mirror is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is f5, the object side of first lens
Curvature radius is r1, meets following relationship: 0.3 < f1/f < 0.95, -1.5 < f2/f < -0.5,0.5 < f3/f < 1.5, -0.25
< f4/f < -0.75, -5.5 < f5/f < -3, f/r1 < 4.0.
Embodiment of the present invention in terms of existing technologies, not only can be effective by the configuration mode of said lens
Preferably aberration is corrected using the lens with different refracting powers and focal length to obtain preferable image quality, is also had lower
TTL, therefore optical property is more preferable, is suitble to the Portable image pickup element of high pixel.
In addition, the focal length f1 of first lens, the focal length f2 of second lens, the focal length f3 of the third lens,
The focal length f4 of the 4th lens and focal length f5 of the 5th lens, meets following relationship: 1.5 < f1 < 3, and -6 < f2 < -
4,5 < f3 < 7.5, -5 < f4 < -2.5, -35 < f5 < -10.
In addition, the refractive index n1 of first lens, the refractive index n2 of second lens, the refraction of the third lens
Rate n3, the refractive index n4 of the 4th lens and the refractive index n5 of the 5th lens meet following relationship: 1.50 < n1 <
1.65,1.60 < n2 < 1.70,1.60 < n3 < 1.70,1.50 < n4 < 1.65,1.50 < n5 < 1.65.
In addition, the Abbe number v1 of first lens, the Abbe number v2 of second lens, the Abbe of the third lens
Number v3, the Abbe number v4 of the 4th lens and the Abbe number v5 of the 5th lens meet following relationship: 40 < v1 <
65,15 < v2 < 30,15 < v3 < 30,40 < v4 < 65,40 < v5 < 65.
In addition, the optics total length of the camera optical camera lens is less than or equal to 6.4 millimeters.
In addition, the material of first lens is glass.
In addition, second lens, the third lens, the material of the 4th lens and the 5th lens are plastics.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of camera optical camera lens of the invention；
Fig. 2 is that the axis colouring differential of camera optical camera lens shown in Fig. 1 is intended to；
Fig. 3 is the ratio chromatism, schematic diagram of camera optical camera lens shown in Fig. 1；
Fig. 4 is the astigmatism curvature of field and distortion schematic diagram of camera optical camera lens shown in Fig. 1.
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.
With reference to attached drawing, the present invention provides a kind of camera optical camera lenses.Fig. 1 show the camera optical of the embodiment of the present invention
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 according to
Sequence includes: aperture St, the first lens L1 with positive refracting power, the second lens L2 with negative refracting power, has positive refracting power
The third lens L3, the 4th lens L4 with negative refracting power and with the 5th lens L5 of negative refracting power.5th lens L5
It may be provided with the optical elements such as optical filtering piece (filter) GF between image planes Si.
First lens L1 has positive refracting power, can effectively reduce system length, and object side outwardly protrudes as convex surface,
Aperture St is set between object and the first lens L1.Second lens L2 has negative refracting power, in the present embodiment, the second lens
The object side of L2 and image side surface are concave surface.The third lens L3 has positive refracting power, in the present embodiment, the object side of the third lens L3
Face is concave surface, image side surface is convex surface.4th lens L4 has negative refracting power, in the present embodiment, the object side of the 4th lens L4 and
Image side surface is concave surface.5th lens L5 has negative refracting power, and in the present embodiment, the 5th lens L5 object side is concave surface, image side
Face is convex surface.4th lens and the 5th lens have negative refracting power, can effectively reduce the system curvature of field.
Here, the focal length for defining whole camera optical camera lens 10 is f, the focal length of the first lens L1 is f1, described the
The focal length of two lens L2 is f2, and the focal length of the third lens L3 is f3, and the focal length of the 4th lens L4 is f4, the described 5th
The focal length of lens L5 be f5, institute first lens object flank radius be r1, meet following relationship:
0.3 < f1/f < 0.95, -1.5 < f2/f < -0.5,0.5 < f3/f < 1.5, -0.25 < f4/f < -0.75, -5.5 < f5/f
< -3, f/r1 < 4.0.
When the focal length of camera optical camera lens 10 of the present invention and focal length, Abbe number, refractive index, the lens of each lens are thick
Degree and radius of curvature can control/adjust the refracting power size configuration of each lens when meeting above-mentioned relation formula, amendment aberration with
While guaranteeing image quality, meet the design requirement of lower TTL, is more suitable the portable type camera shot equipment of high pixel.
Specifically, in the embodiment of the present invention, the focal length f1 of first lens, the focal length f2 of second lens are described
The focal length f3 of the third lens, the focal length f4 of the 4th lens, the focal length f5 of the 5th lens may be designed under satisfaction
Column relational expression: 1.5 < f1 < 3, -6 < f2 < -4,5 < f3 < 7.5, -5 < f4 < -2.5, -35 < f5 < -10, unit: millimeter (mm).So
Design, enables to the optics overall length TTL of whole camera optical camera lens 10 to shorten as far as possible, maintains the characteristic of miniaturization.
Preferably, optical full length TTL < 6.4mm of the camera optical camera lens 10 of the embodiment of the present invention.It is designed in this way,
More conducively realize the Miniaturization Design of camera optical camera lens 10.
In camera optical camera lens 10 of the invention, the material of each lens can be glass or plastic cement, if the material of lens is glass
Glass, the then freedom degree that can increase optical system refracting power configuration of the present invention can be effectively reduced if lens material is plastic cement
Production cost.
In the embodiment of the present invention, the material of first lens is glass, since the refractive index of glass material is high and light is saturating
Property it is good, therefore can effectively promote the optical property of the camera optical camera lens, second lens, the third lens, the 4th are thoroughly
The material of mirror and the 5th lens is plastics, and production cost can be effectively reduced.
Further, in a preferred embodiment of the invention, the refractive index n1 of first lens, second lens
Refractive index n2, the refractive index n3 of the third lens, the refraction of the refractive index n4 and the 5th lens of the 4th lens
Rate n5, meets following relationship: 1.50 < n1 < 1.65,1.60 < n2 < 1.70,1.60 < n3 < 1.70,1.50 < n4 < 1.65,1.50 <
n5<1.65.It is designed in this way, is conducive to lens and obtains appropriate matching on optical material, and then the videography optical lens can be made
First 10 obtain preferable image quality.
It should be noted that in the embodiment of the present invention, the Abbe number v1 of first lens, the Abbe of second lens
Number v2, the Abbe number v3, the Abbe number v4 of the 4th lens and the Abbe number of the 5th lens of the third lens
V5 is designed to meet following relationship: 40 < v1 < 65,15 < v2 < 30,15 < v3 < 30,40 < v4 < 65,40 < v5 < 65.So
Design, Optical Chromatic phenomenon when camera optical camera lens 10 can effectively be inhibited to be imaged.
It is understood that the refractive index design scheme and Abbe number design scheme of above-mentioned each lens can be combined with each other and
Apply in the design of camera optical camera lens 10 so that the second lens L2 and the third lens L3 using high refractive index,
Low Abbe number optical material is made, and can effectively reduce camera lens color difference, greatly improves the image quality of camera optical camera lens 10.
In addition, the surface of lens can be set to it is aspherical, it is aspherical to be easy to be fabricated to the shape other than spherical surface, obtain
More controlled variable is obtained, to cut down aberration, and then reduces the number that lens use, therefore the present invention can be effectively reduced and take the photograph
As the total length of optical lens.In the embodiment of the present invention, the object side of each lens and image side surface are aspherical.
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.
It shown below the design data of camera optical camera lens 10 according to an embodiment of the present invention.
Table 1, table 2 show the data of the camera optical camera lens 10 of the embodiment of the present invention.
[table 1]
The meaning of each symbol is as follows:
F: the focal length of camera optical camera lens 10；
The focal length of f1: the first lens L1；
The focal length of f2: the second lens L2；
F3: the focal length of the third lens L3；
The focal length of f4: the four lens L4；
The focal length of f5: the five lens L5；
The combined focal length of f12: the first lens L1 and the second lens L2.
[table 2]
Wherein, R1, R2 are the object side of the first lens L1, image side surface, and R3, R4 are object side, the image side of the second lens L2
Face, R5, R6 are the object side of the third lens L3, image side surface, and R7, R8 are the object side of the 4th lens L4, image side surface, and R9, R10 are
The object side of 5th lens L5, image side surface, R11, R12 are the object side of optical filtering piece GF, image side surface.Other each symbols contain
Justice is as follows.
Distance on the axis of the object side of d0: aperture St 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 nd1: the first lens L1；
The refractive index of nd2: the second lens L2；
Nd3: the refractive index of the third lens L3；
The refractive index of nd4: the four lens L4；
The refractive index of nd5: the five lens L5；
Ndg: the refractive index of optical filtering piece GF；
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 3 shows the aspherical surface data of each lens in the camera optical camera lens 10 of the embodiment of the present invention.
[table 3]
Table 4, table 5 show the point of inflexion of each lens and stationary point design number in the camera optical camera lens 10 of the embodiment of the present invention
According to.Wherein, R1, R2 respectively represent object side and the image side surface of the first lens L1, and R3, R4 respectively represent the object side of the second lens L2
Face and image side surface, R5, R6 respectively represent object side and the image side surface of the third lens L3, and R7, R8 respectively represent the 4th lens L4's
Object side and image side surface, R9, R10 respectively represent object side and the image side surface of the 5th lens L5." point of inflexion position " field is corresponding
Data are vertical range of the point of inflexion set by each lens surface to 10 optical axis of camera optical camera lens." stationary point position " field pair
Answering data is vertical range of the stationary point set by each lens surface to 10 optical axis of camera optical camera lens.
[table 4]
| Point of inflexion number | Point of inflexion position 1 | Point of inflexion position 2 | |
| R1 | 0 | ||
| R2 | 1 | 0.905 | |
| R3 | 1 | 1.205 | |
| R4 | 0 | ||
| R5 | 2 | 0.375 | 1.135 |
| R6 | 1 | 1.175 | |
| R7 | 2 | 0.785 | 0.905 |
| R8 | 0 | ||
| R9 | 1 | 1.295 | |
| R10 | 0 |
[table 5]
Fig. 2, Fig. 3 respectively illustrate the light that wavelength is 470nm, 510nm, 555nm, 610nm and 650nm and pass through embodiment
Color difference and ratio chromatism, schematic diagram on axis after camera optical camera lens 10.Fig. 4 then shows shooting light of the light Jing Guo embodiment
The astigmatism curvature of field and distortion schematic diagram after learning camera lens 10.
Following table 6 lists the numerical value that each conditional is corresponded in the present embodiment according to the above conditions.Obviously, the present embodiment
Camera optical camera lens 10 meet above-mentioned conditional.
[table 6]
| Condition | Embodiment 1 |
| 0.3<f1/f<0.95 | 0.410069 |
| -1.5<f2/f<-0.5 | -0.6043 |
| 0.5<f3/f<1.5 | 0.949062 |
| -0.25<f4/f<-0.75 | -0.57531 |
| -5.5<f5/f<-3. | -4.23021 |
| f/r1<4.0 | 3.38943 |
In the present embodiment, the Entry pupil diameters of the camera optical camera lens are 3.27mm, and full filed image height is 2.04mm, right
The field angle in linea angulata direction is 30.87 °.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiments of the present invention,
And in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (7)
1. a kind of camera optical camera lens sequentially includes: an aperture by object side to image side, one has the first lens of positive refracting power,
One the second lens with negative refracting power, the third lens with positive refracting power, the 4th lens with negative refracting power, with
And one with negative refracting power the 5th lens；
It is characterized in that, the focal length of whole camera optical camera lens is f, the focal length of first lens is f1, second lens
Focal length be f2, the focal lengths of the third lens is f3, and the focal length of the 4th lens is f4, and the focal length of the 5th lens is
The object flank radius of f5, first lens are r1, meet following relationship:
0.3 < f1/f < 0.95, -1.5 < f2/f < -0.5,0.5 < f3/f < 1.5, -0.25 < f4/f < -0.75, -5.5 < f5/f < -3,
f/r1<4.0。
2. camera optical camera lens according to claim 1, which is characterized in that the focal length f1 of first lens, described
The focal length f2 of two lens, the focal length f3, the focal length f4 of the 4th lens and the coke of the 5th lens of the third lens
Away from f5, meet following relationship:
1.5mm < f1 < 3mm, -6mm < f2 < -4mm, 5mm < f3 < 7.5mm, -5mm < f4 < -2.5mm, -35mm < f5 < -10mm.
3. camera optical camera lens according to claim 1, which is characterized in that the refractive index n1 of first lens, it is described
The refractive index n2 of second lens, the refractive index n3, the refractive index n4 and the described 5th of the 4th lens of the third lens
The refractive index n5 of lens meets following relationship:
1.50 < n1 < 1.65,1.60 < n2 < 1.70,1.60 < n3 < 1.70,1.50 < n4 < 1.65,1.50 < n5 < 1.65.
4. camera optical camera lens according to claim 1, which is characterized in that the Abbe number v1 of first lens, it is described
The Abbe number v2 of second lens, the Abbe number v3, the Abbe number v4 and the described 5th of the 4th lens of the third lens
The Abbe number v5 of lens meets following relationship:
40 < v1 < 65,15 < v2 < 30,15 < v3 < 30,40 < v4 < 65,40 < v5 < 65.
5. camera optical camera lens according to claim 1, which is characterized in that the optics total length of the camera optical camera lens
Less than 6.4 millimeters.
6. camera optical camera lens according to claim 1, which is characterized in that the material of the first lens is glass.
7. camera optical camera lens according to claim 1 or 6, which is characterized in that second lens, the third are saturating
The material of mirror, the 4th lens and the 5th lens is plastics.
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| CN201710591768.4A CN107422454B (en) | 2017-07-19 | 2017-07-19 | Camera optical camera lens |
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| CN201710591768.4A CN107422454B (en) | 2017-07-19 | 2017-07-19 | Camera optical camera lens |
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| CN108169876B (en) * | 2017-12-25 | 2020-09-29 | 瑞声光电科技（苏州）有限公司 | Image pickup optical lens |
| TWI652520B (en) | 2018-03-02 | 2019-03-01 | 大立光電股份有限公司 | Electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010048996A (en) * | 2008-08-21 | 2010-03-04 | Konica Minolta Opto Inc | Imaging lens |
| CN103309015A (en) * | 2012-03-08 | 2013-09-18 | 大立光电股份有限公司 | Monofocal optical lens system |
| JP2014044443A (en) * | 2013-11-28 | 2014-03-13 | Hitachi Maxell Ltd | Imaging lens system |
| CN103941376A (en) * | 2013-01-22 | 2014-07-23 | 三星电机株式会社 | Subminiature Optical System And Portable Device Including The Same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4847172B2 (en) * | 2006-03-28 | 2011-12-28 | 富士フイルム株式会社 | Imaging lens |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010048996A (en) * | 2008-08-21 | 2010-03-04 | Konica Minolta Opto Inc | Imaging lens |
| CN103309015A (en) * | 2012-03-08 | 2013-09-18 | 大立光电股份有限公司 | Monofocal optical lens system |
| CN103941376A (en) * | 2013-01-22 | 2014-07-23 | 三星电机株式会社 | Subminiature Optical System And Portable Device Including The Same |
| JP2014044443A (en) * | 2013-11-28 | 2014-03-13 | Hitachi Maxell Ltd | Imaging lens system |
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Effective date of registration: 20200424 Address after: No. 8, 2 floor, 85 Cavendish Science Park Avenue, Singapore Patentee after: Raytheon solutions Pte Ltd Address before: No. 8, 1st floor, Tongju Science and Technology Building, 10 65th Street, Hongmao Bridge, Singapore Patentee before: Raytheon Technology (Singapore) Co., Ltd |