CN105511056B - A kind of optical lens and camera device - Google Patents
A kind of optical lens and camera device Download PDFInfo
- Publication number
- CN105511056B CN105511056B CN201610072605.0A CN201610072605A CN105511056B CN 105511056 B CN105511056 B CN 105511056B CN 201610072605 A CN201610072605 A CN 201610072605A CN 105511056 B CN105511056 B CN 105511056B
- Authority
- CN
- China
- Prior art keywords
- lens
- optical
- optical lens
- relational expression
- thing side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
Abstract
This application provides a kind of optical lens, is included successively by the direction of thing side to image side along optical axis：Diaphragm, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, optical filter and imaging surface；Wherein, first lens have positive light coke, and its thing side is convex surface；Second lens have negative power, and its image side surface is concave surface；The thing side of 3rd lens is concave surface；4th lens have positive light coke, and its thing side is concave surface；5th lens have negative power；First lens, the second lens, the 3rd lens, the 4th lens and the thing side of the 5th lens and image side surface are non-spherical structure；By carrying out collocation adjustment to eyeglass, the parameter of the optical lens is set to meet relational expression：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101, the overall length of camera lens is effectively reduced, conveniently adapts to the ultrathin demand of intelligent and portable electronic equipment.
Description
Technical field
The application is related to optical camera field, more particularly to a kind of optical lens and camera device.
Background technology
With the continuous development of scientific technology, picture pick-up device is more and more applied to the work and daily life of people
It is central, bring huge facility for the work and daily life of people.
In recent years, with the development of intelligent and portable electronic equipment such as mobile phone, flat board, the shooting work(of intelligent and portable electronic equipment
Can be even more to have obtained unprecedented development.At present, the optical lens of smart mobile phone has reached 13,000,000 pixels so that intelligent hand
The pickup quality of machine is further lifted, and photographic effect is also become better and better.
However, with the development of intelligent and portable electronic equipment, the thickness of intelligent and portable electronic equipment is constantly thinned so that former
Some optical lens do not adapt to gradually thinning intelligent and portable electronic equipment, and it is lightening to be unfavorable for intelligent and portable electronic equipment
Overall design.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of optical lens and camera device, camera lens is effectively reduced
Overall length, the optical lens is set to adapt to gradually thinning intelligent and portable electronic equipment, it is lightening beneficial to intelligent and portable electronic equipment
Overall design.
Technical scheme is as follows：
A kind of optical lens, it is characterised in that included successively by the direction of thing side to image side along optical axis：
Diaphragm with same central shaft, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, filter
Mating plate and imaging surface；
Wherein, first lens have positive light coke, and its thing side is convex surface；
Second lens have negative power, and its image side surface is concave surface；
The thing side of 3rd lens is concave surface；
4th lens have positive light coke, and its thing side is concave surface；
5th lens have negative power, and its image side surface is M shapes；
First lens, the second lens, the 3rd lens, the 4th lens and the thing side of the 5th lens and image side surface are
Non-spherical structure；
The optical lens meets relational expression：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101、1.16<TTL/F
<1.23；
Wherein, F is the total focal length of the optical lens, and F1 is the focal length of first lens, and D45 is the 4th lens
With spacing distance of the 5th lens on optical axis, F3 is the focal length of the 3rd lens, and F4 is Jiao of the 4th lens
Away from TTL is the overall length of the optical lens.
Preferably, the optical lens meets relational expression：
0.2<(R5+R6)/(R5-R6)<3.4；
Wherein, R5 is the radius of curvature of the 3rd lens thing side；R6 is the curvature half of the 3rd lens image side surface
Footpath.
Preferably, the optical lens meets relational expression：
1.4≤R1≤1.7；
Wherein, R1 is the radius of curvature of the first lens thing side.
Preferably, the optical lens meets relational expression：
1.6≤N2≤1.64；
Wherein, N2 is the refractive index of second lens.
Preferably, the 3rd lens have positive light coke or negative power, and the abbe number of the 3rd lens
For 22~24.
Preferably, the optical lens meets relational expression：
1.91<T4/D45<2.48；
Wherein, T4 is thickness of the 4th lens on optical axis, and D45 is that the 4th lens exist with the 5th lens
Spacing distance on optical axis.
Preferably, the optical lens meets relational expression：
1.5<N1&N4&N5<1.6；
Wherein, N1 is the refractive index of first lens, and N4 is the refractive index of the 4th lens, and N5 is the described 5th saturating
The refractive index of mirror.
Preferably, the optical lens meets relational expression：
-2.8<F12/F<-1.2；
Wherein, F12 is the combined focal length of first lens and second lens.
Preferably, the optical lens meets relational expression：
3<R2/R1<5、0.1<R4/R3<0.5；
Wherein, R1 is the radius of curvature of the first lens thing side, and R2 is the curvature half of the first lens image side surface
Footpath, R3 are the radius of curvature of the second lens thing side, and R4 is the radius of curvature of the second lens image side surface.
Preferably, the image side surface of first lens is convex surface, and the thing side of second lens is convex surface.
Preferably, the optical lens meets relational expression：
-0.3<F/R2<-0.2；
Wherein, R2 is the radius of curvature of the first lens image side surface.
Preferably, the optical lens meets relational expression：
0.5<(T2+T4)/(D23+D34)<1；
Wherein, D23 is the spacing distance of second lens and the 3rd lens on optical axis, and D34 is the 3rd lens
With spacing distance of the 4th lens on optical axis, T2 is thickness of second lens on optical axis, and T4 is the 4th lens
Thickness on optical axis.
Preferably, the optical lens meets relational expression：
25<Vd2<35,50<Vd3<60；
Wherein, Vd2 is the Abbe number of second lens, and Vd3 is the Abbe number of the 3rd lens.
Preferably, the optical lens meets relational expression：
0.4<D34/T4<0.7；
Wherein, D34 is the spacing distance of the 3rd lens and the 4th lens on optical axis, and T4 is that the 4th lens exist
Thickness on optical axis.
A kind of camera device, it is characterised in that including the optical lens described in claim 1~14 any claim.
Compared with prior art, beneficial effects of the present invention are：
Optical lens in the present invention, by carrying out collocation adjustment to eyeglass, the parameter of the optical lens is set to meet to close
It is formula：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101, the overall length of optical lens is effectively reduced, makes the optical frames
Head adapts to gradually thinning intelligent and portable electronic equipment, beneficial to the overall design that intelligent and portable electronic equipment is lightening.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme in the embodiment of the present application, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present application, for
For those of ordinary skill in the art, without having to pay creative labor, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is a kind of structural representation of optical lens disclosed in the embodiment of the present application one；
Fig. 2 is to be tested optical lens disclosed in the embodiment of the present application one the obtained curvature of field and distortion figure；
Fig. 3 is to be tested optical lens disclosed in the embodiment of the present application one obtained spherical aberration figure；
Fig. 4 is a kind of structural representation of optical lens disclosed in the embodiment of the present application two；
Fig. 5 is to be tested optical lens disclosed in the embodiment of the present application two the obtained curvature of field and distortion figure；
Fig. 6 is to be tested optical lens disclosed in the embodiment of the present application two obtained spherical aberration figure；
Fig. 7 is a kind of structural representation of optical lens disclosed in the embodiment of the present application three；
Fig. 8 is to be tested optical lens disclosed in the embodiment of the present application three the obtained curvature of field and distortion figure；
Fig. 9 is to be tested optical lens disclosed in the embodiment of the present application three obtained spherical aberration figure；
Figure 10 is a kind of structural representation of optical lens disclosed in the embodiment of the present application four；
Figure 11 is to be tested optical lens disclosed in the embodiment of the present application four the obtained curvature of field and distortion figure；
Figure 12 is to be tested optical lens disclosed in the embodiment of the present application four obtained spherical aberration figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of the application protection.
As stated in the Background Art, as the development of intelligent and portable electronic equipment, the thickness of intelligent and portable electronic equipment are continuous
It is thinned so that original optical lens for being arranged at intelligent and portable electronic equipment does not adapt to gradually thinning intelligent and portable electronics
Equipment, it is unfavorable for the lightening overall design of intelligent and portable electronic equipment.
In view of this, the present invention proposes a kind of optical lens, is included successively by the direction of thing side to image side along optical axis：Have
The diaphragm of same central shaft, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, optical filter and imaging surface；
Wherein, first lens have positive light coke, and its thing side is convex surface；
Second lens have negative power, and its image side surface is concave surface；
The thing side of 3rd lens is concave surface, and the abbe number of the 3rd lens is 22~24；
4th lens have positive light coke, and its thing side is concave surface；
5th lens have negative power；
The optical lens meets relational expression：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101、1.16<TTL/F
<1.23；
Wherein, F is the total focal length of the optical lens, and F1 is the focal length of first lens, and D45 is the 4th lens
With spacing distance of the 5th lens on optical axis, F3 is the focal length of the 3rd lens, and F4 is Jiao of the 4th lens
Away from TTL is the overall length of the optical lens.
In the present invention, the 3rd lens can be positive light coke, or negative power.
Optical lens in the present invention, by carrying out collocation adjustment to eyeglass, the parameter of the optical lens is set to meet to close
It is formula：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101, the thickness of camera lens is effectively reduced, and by using dispersion
Coefficient is 22~24 the 3rd lens, further shortens combined focal length, so as to further reduce the thickness of camera lens, makes the optics
Camera lens adapts to gradually thinning intelligent and portable electronic equipment, beneficial to the overall design that intelligent and portable electronic equipment is lightening.
Above is the central idea of the present invention, below in conjunction with the accompanying drawing in the embodiment of the present invention, to the embodiment of the present invention
In technical scheme be clearly and completely described, it is clear that described embodiment is only part of the embodiment of the present invention,
Rather than whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, belongs to the scope of protection of the invention.
Embodiment one
The present embodiment provides a kind of optical lens, refer to the structural representation of the present embodiment optical lens shown in Fig. 1,
Included successively by the direction of thing side to image side along optical axis：
Diaphragm 10 with same central shaft, the first lens 11, the second lens 12, the 3rd lens 13, the 4th lens 14,
Five lens 15, optical filter 16 and imaging surface 17；
Wherein, the diaphragm 10 is arranged at the thing side of the first lens, i.e. diaphragm is preposition, can set larger aperture, from
And increase the light throughput of optical lens, ensure the brightness for the picture that the optical lens obtains.
First lens 11 have positive light coke, and the thing side of the first lens 11 is convex surface, to provide positive flexion
Power, by object space convergence of rays.Also, the curvature on the convex surface of the first eyeglass thing side can influence the visual field of the lens group
Angle, in the present embodiment, the radius of curvature R 1 of optical lens the first lens thing side meet relational expression：
1.4≤R1≤1.7 (1)
Because the angle of visual field of optical lens is had a great influence by the shape of the first eyeglass thing side of the optical lens, lead to
This setting is crossed, determines the shape of the first eyeglass thing side of the optical lens, the angle of visual field of the optical lens can be made
Increase, coordinate diaphragm preposition structure that larger aperture is set, ensure enough light throughputs, make to obtain by the optical lens
To picture there is high brightness, improve image quality.
Second lens 12 have negative power, and the image side surface of second lens 12 is concave surface, to provide negative bend
Roll over power, aberration caused by the excessive positive refracting power of the first eyeglass of amendment.Also, the refractive index of second lens 12 meets relation
Formula：
1.6≤N2≤1.64 (2)
By using high-index material, the refraction of greater angle will be carried out by the light of the first lens 11, further
Improve the angle of visual field of optical lens.
3rd lens 13 have negative power, and the thing side of the 3rd lens 13 is concave surface, to provide negative flexion
Power, so as to shorten combined focal length, further shorten the overall length of optical lens.And the abbe number of the 3rd lens is 22
~24, by using low chromatic dispersion material, it can effectively correct the aberration of system.Also, in the present embodiment, the optical lens
3rd lens 13 meet relational expression：
0.2<(R5+R6)/(R5-R6)<3.4 (3)
Wherein, R5 is the radius of curvature of the 3rd lens thing side；R6 is the curvature half of the 3rd lens image side surface
Footpath.3rd lens 13 meet that the relational expression can reduce eyeglass spacing, reduce the overall length of the optical lens.
4th lens 14 have positive light coke, and its thing side is concave surface, to provide positive refracting power, corrects system
Aberration.
5th lens 15 have negative power, to provide negative refracting power.
First lens, the second lens, the 3rd lens, the 4th lens and the thing side of the 5th lens and image side surface are
Non-spherical structure.Also, to solve the problems, such as that glass lens product yield caused by processing difficulties is low and cost is higher, this
First lens described in embodiment, the second lens, the 3rd lens, the 4th lens and the 5th lens use resin material.Due to tree
Fat material forming process is ripe, thus the product yield is high, and production cost is low.
The optical lens meets relational expression：
1<F/F1<1.5 (4)
0<D45/F<0.1 (5)
15<F3/F4<101 (6)
1.16<TTL/F<1.23 (7)
Wherein, F is the total focal length of the optical lens, and F1 is the focal length of first lens, and D45 is the 4th lens
With spacing distance of the 5th lens on optical axis, F3 is the focal length of the 3rd lens, and F4 is Jiao of the 4th lens
Away from TTL is the overall length of the optical lens.
Wherein, eyeglass meets that relational expression (4) can ensure optical lens on the basis of with larger field angle, reduces institute
State the overall length of optical lens.Meet that relational expression (5) can further reduce eyeglass spacing, further reduce the optical lens
Overall length.Meet that relational expression (7) can effectively increase the focussing distance of the optical lens.And meet relational expression (6) then can be with
Further reduce the overall length of the optical lens.
And, it is preferred that in the present embodiment, the optical lens also meets relationship below：
1.91<T4/D45<2.48 (8)
1.5<N1&N4&N5<1.6 (9)
-2.8<F12/F<-1.2 (10)
3<R2/R1<5、0.1<R4/R3<0.5 (11)
Wherein, T4 is thickness of the 4th lens on optical axis, and D45 is that the 4th lens exist with the 5th lens
Spacing distance on optical axis, N1 are the refractive index of first lens, and N4 is the refractive index of the 4th lens, and N5 is described the
The refractive index of five lens, F12 are the combined focal length of first lens and second lens, and R1 is the first lens thing side
The radius of curvature in face, R2 are the radius of curvature of the first lens image side surface, and R3 is the curvature half of the second lens thing side
Footpath, R4 are the radius of curvature of the second lens image side surface.
Wherein, the eyeglass of optical lens meets that relational expression (8) and (10) are advantageous to reduce the overall length of the optical lens, mirror
Piece meets relational expression (9), then be can be by arranging in pairs or groups, with more preferable color difference eliminating to the material of different refractivity.
Wherein, 10 of above-mentioned five lens aspherical meet condition：
The z represents the Z coordinate value of lens surface each point, and r represents the Y-axis coordinate value of each point on lens surface, and c is lens
The inverse of the radius of curvature R on surface, k are circular cone coefficient, α1、α2、α3、α4、α5、α6、α7、α8For asphericity coefficient.
On the basis of above-mentioned constraints is met, the design parameter of the optical lens can be：F=3.54mm,
F.NO=2.0, FOV=80.1 °, in order to verify the technique effect of the optical lens disclosed in the above embodiments of the present application, this Shen
Please also by by the diaphragm, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, optical filter and into
The parameter and asphericity coefficient of image planes are tested after carrying out the restriction of concrete numerical value, obtain optical lens in the present embodiment
The curvature of field and distortion figure Fig. 2 and spherical aberration figure Fig. 3, it is specific as follows：
The parameter of optical lens is defined using following numerical value：
The center thickness of first lens is 0.560~0.568mm, the center thicknesses of second lens for 0.24~
0.25mm, the center thickness of the 3rd lens is 0.270~0.312mm, the center thicknesses of the 4th lens for 0.455~
0.654mm, the center thickness of the 5th lens is 0.253~0.306mm, and the filter thickness is 0.21mm.
The asphericity coefficient is defined using the numerical value in table 1：
Wherein, R is the radius of curvature of corresponding sphere.
Show that the optical distortion of this optical lens assembly is less than by the obtained curvature of field and distortion figure Fig. 2 and spherical aberration figure Fig. 3
2%, the curvature of field is less than 0.1mm, and imaging distortion is small, and definition is high, and the picture shot under the optical lens is clear, and color is satisfied
Full, stereovision is enriched, and the optical lens obtained using Technical Design disclosed in the above embodiments of the present application has good
Imaging effect, it disclosure satisfy that the high pixel request of intelligent and portable electronic equipment.
The aspherical wide-angle optical lens of the high pixels of 5P in the present embodiment, while miniaturization is met also have it is higher into
The quality of picture, by length TTL≤4.3mm of the effective control camera lens of the collocation of each eyeglass, and cause the optical lens
Angle of visual field FOV≤75 degree, make the camera lens that there is larger coverage；It is preposition by diaphragm, it can set to obtain F-number
F.NO=2.0 large aperture, and F.NO=2.0 preposition large aperture designs, by increasing capacitance it is possible to increase the light-inletting quantity of shooting process, it ensure that
The light levels of shooting picture.
The design of the larger angle of visual field of the present embodiment optical lens and larger aperture, it can ensure that enough light passes through
Amount, so as to while the overall length of the optical lens is reduced, ensure that the light levels of shooting picture, improve picture matter
Amount.
Embodiment two
The present embodiment provides a kind of optical lens, refer to the structural representation of the present embodiment optical lens shown in Fig. 4,
Unlike embodiment one, optical lens described in the present embodiment meets relational expression (1)~(9) in embodiment one, and this
Optical lens also meets relational expression described in embodiment：
-0.3<F/R2<-0.2 (12)
Wherein, F is the total focal length of the optical lens, and R2 is the radius of curvature of the first lens image side surface.Optical frames
The eyeglass of head meets that this relational expression is advantageous to reduce the overall length of the optical lens.
In the present embodiment, 10 of above-mentioned five lens aspherical meet condition：
The z represents the Z coordinate value of lens surface each point, and r represents the Y-axis coordinate value of each point on lens surface, and c is lens
The inverse of the radius of curvature R on surface, k are circular cone coefficient, α1、α2、α3、α4、α5、α6、α7、α8For asphericity coefficient.
On the basis of above-mentioned constraints is met, the design parameter of the optical lens can be：F=3.52mm,
F.NO=2.0, FOV=79.3 °, equally, in order to verify the technique effect of the optical lens disclosed in the present embodiment, to by described in
Diaphragm, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the parameter and aspheric of optical filter and imaging surface
Face coefficient is tested after carrying out the restriction of concrete numerical value, obtains the curvature of field and distortion figure Fig. 5 of the optical lens in the present embodiment
It is specific as follows with spherical aberration figure Fig. 6：
The parameter of optical lens is defined using following numerical value：
The center thickness of first lens is 0.560~0.568mm, the center thicknesses of second lens for 0.24~
0.25mm, the center thickness of the 3rd lens is 0.25~0.3mm, the center thicknesses of the 4th lens for 0.408~
0.621mm, the center thickness of the 5th lens is 0.25~0.31mm, and the filter thickness is 0.21mm.
The asphericity coefficient is defined using the numerical value in table 2：
Wherein, R is the radius of curvature of corresponding sphere.
Show that the optical distortion of this optical lens assembly is less than by the obtained curvature of field and distortion figure Fig. 5 and spherical aberration figure Fig. 6
2%, the curvature of field is less than 0.1mm, and imaging distortion is small, and definition is high, and the picture shot under the optical lens is clear, and color is satisfied
Full, stereovision is enriched, and the optical lens obtained using Technical Design disclosed in the above embodiments of the present application has good
Imaging effect, it disclosure satisfy that the high pixel request of intelligent and portable electronic equipment.
The aspherical wide-angle optical lens of the high pixels of 5P in the present embodiment, while miniaturization is met also have it is higher into
The quality of picture, by length TTL≤4.3mm of the effective control camera lens of the collocation of each eyeglass, and cause the optical lens
Angle of visual field FOV≤75 degree, make the camera lens that there is larger coverage；It is preposition by diaphragm, it can set to obtain F-number
F.NO=2.0 large aperture, and F.NO=2.0 preposition large aperture designs, by increasing capacitance it is possible to increase the light-inletting quantity of shooting process, it ensure that
The light levels of shooting picture.
The design of the larger angle of visual field of the present embodiment optical lens and larger aperture, it can ensure that enough light passes through
Amount, so as to while the overall length of the optical lens is reduced, ensure that the light levels of shooting picture, improve picture matter
Amount.
Embodiment three
The present embodiment provides a kind of optical lens, refer to the structural representation of the present embodiment optical lens shown in Fig. 7,
Wherein, the shape facility of lens is unlike embodiment one in the optical lens, except with embodiment in the present embodiment
In one outside the shape facility of lens, also with following feature：
The image side surface of first lens 31 is convex surface, and the thing side of second lens 32 is convex surface.
By above-mentioned setting, it can further increase the angle of visual field of the optical lens, and shorten the optical lens
Overall length.
Also, in the present embodiment, also include with the difference of embodiment one, the 3rd lens 33 have described in the present embodiment
There is positive light coke.
In addition, in the present embodiment, the optical lens meets relational expression (1)~(7) and relation in embodiment one
Formula (11), in addition, the optical lens in the present embodiment also meet following relational expression：
0.5<(T2+T4)/(D23+D34)<1 (13)
25<Vd2<35,50<Vd3<60 (14)
-0.3<F/R2<-0.2 (15)
Wherein, D23 is the spacing distance of second lens and the 3rd lens on optical axis, and D34 is the 3rd lens
With spacing distance of the 4th lens on optical axis, T2 is thickness of second lens on optical axis, and T4 is the 4th lens
Thickness on optical axis, Vd2 are the Abbe number of second lens, and Vd3 is the Abbe number of the 3rd lens, and F is the light
The total focal length of camera lens is learned, R2 is the radius of curvature of the first lens image side surface.
In the present embodiment, optical lens meets formula (13), can play the middle thick and gap of appropriate distribution eyeglass
Effect, help to shorten the overall length of optical lens, and relational expression (14) represents that the second eyeglass and the 3rd eyeglass are different materials, and
The different Abbe number, which is set, can effectively eliminate aberration.Relational expression (15) then defines the image side surface focusing of first eyeglass
Away from disturbance degree, be advantageous to reduce the overall length of the optical lens.
In the present embodiment, 10 of above-mentioned five lens aspherical meet condition：
The z represents the Z coordinate value of lens surface each point, and r represents the Y-axis coordinate value of each point on lens surface, and c is lens
The inverse of the radius of curvature R on surface, k are circular cone coefficient, α1、α2、α3、α4、α5、α6、α7、α8、α9、α10For asphericity coefficient.
On the basis of above-mentioned constraints is met, the design parameter of the optical lens can be：F=3.67mm,
F.NO=2.0, FOV=78 °, in order to verify the technique effect of the optical lens disclosed in the present embodiment, by the diaphragm, first
Lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the parameter and asphericity coefficient of optical filter and imaging surface are carried out
Tested after the restriction of concrete numerical value, obtain the curvature of field and distortion figure Fig. 8 and spherical aberration figure figure of the optical lens in the present embodiment
9, it is specific as follows：
The parameter of optical lens is defined using following numerical value：
The center thickness of first lens is 0.560~0.568mm, the center thicknesses of second lens for 0.24~
0.25mm, the center thickness of the 3rd lens is 0.405~0.415mm, the center thicknesses of the 4th lens for 0.385~
0.395mm, the center thickness of the 5th lens is 0.25~0.31mm, and the filter thickness is 0.21mm.
The asphericity coefficient is defined using the numerical value in table 3：
Wherein, R is the radius of curvature of corresponding sphere.
Show that the optical distortion of this optical lens assembly is less than by the obtained curvature of field and distortion figure Fig. 8 and spherical aberration figure Fig. 9
2%, the curvature of field is less than 0.1mm, and imaging distortion is small, and definition is high, and the picture shot under the optical lens is clear, and color is satisfied
Full, stereovision is enriched, and the optical lens obtained using Technical Design disclosed in the above embodiments of the present application has good
Imaging effect, it disclosure satisfy that the high pixel request of intelligent and portable electronic equipment.
The aspherical wide-angle optical lens of the high pixels of 5P in the present embodiment, while miniaturization is met also have it is higher into
The quality of picture, by length TTL≤4.3mm of the effective control camera lens of the collocation of each eyeglass, and cause the optical lens
Angle of visual field FOV≤75 degree, make the camera lens that there is larger coverage；It is preposition by diaphragm, F-number F.NO=can be obtained
2.0 large aperture, and F.NO=2.0 preposition large aperture designs, by increasing capacitance it is possible to increase the light-inletting quantity of shooting process, it ensure that shooting picture
The light levels in face.
The design of the larger angle of visual field of the present embodiment optical lens and larger aperture, it can ensure that enough light passes through
Amount, so as to while the overall length of the optical lens is reduced, ensure that the light levels of shooting picture, improve picture matter
Amount.
Example IV
The present embodiment provides a kind of optical lens, and the present embodiment provides a kind of optical lens, refer to the sheet shown in Figure 10
The structural representation of embodiment optical lens, in the optical lens shape facility of lens unlike embodiment one, this
In embodiment in embodiment one in addition to the shape facility of lens, also with following feature：
The image side surface of first lens 41 is convex surface, and the thing side of second lens 42 is convex surface.
By above-mentioned setting, it can further increase the angle of visual field of the optical lens, and shorten the optical lens
Overall length.
In the present embodiment, unlike embodiment one, the 3rd lens 43 have positive light coke described in the present embodiment.
In addition, in the present embodiment, the optical lens meets relational expression (1)~(7) and relation in embodiment one
Formula (9)~(10), in addition, the optical lens in the present embodiment also meet following relational expression：
0.4<D34/T4<0.7 (16)
-0.3<F/R2<-0.2 (17)
Wherein, D34 is the spacing distance of the 3rd lens and the 4th lens on optical axis, and T4 is that the 4th lens exist
Thickness on optical axis, F are the total focal length of the optical lens, and R2 is the radius of curvature of the first lens image side surface.
In the present embodiment, the optical lens meets relational expression (16), can adjust the distance between eyeglass, makes the distance big
It is small appropriate, beneficial to assembling.And meet that relational expression (17) then defines the disturbance degree of the image side surface focusing of first eyeglass, have
Beneficial to the overall length for reducing the optical lens.
In the present embodiment, 10 of above-mentioned five lens aspherical equally meet condition：
The z represents the Z coordinate value of lens surface each point, and r represents the Y-axis coordinate value of each point on lens surface, and c is lens
The inverse of the radius of curvature R on surface, k are circular cone coefficient, α1、α2、α3、α4、α5、α6、α7、α8、α9、α10For asphericity coefficient.
On the basis of above-mentioned constraints is met, the design parameter of the optical lens can be：F=3.6mm, F.NO
=2.0, FOV=79.8 °, in order to verify the technique effect of the optical lens disclosed in the present embodiment, by the diaphragm, first saturating
Mirror, the second lens, the 3rd lens, the 4th lens, the 5th lens, the parameter and asphericity coefficient of optical filter and imaging surface are had
Tested after the restriction of body numerical value, obtain the curvature of field and distortion figure Figure 11 and spherical aberration figure figure of the optical lens in the present embodiment
12, it is specific as follows：
The parameter of optical lens is defined using following numerical value：
The center thickness of first lens is 0.560~0.568mm, the center thicknesses of second lens for 0.25~
0.27mm, the center thickness of the 3rd lens is 0.27~0.285mm, the center thicknesses of the 4th lens for 0.41~
0.52mm, the center thickness of the 5th lens is 0.25~0.31mm, and the filter thickness is 0.21mm.
The asphericity coefficient is defined using the numerical value in table 4 (nextpage).
Wherein, R is the radius of curvature of corresponding sphere.
Show that the optical distortion of this optical lens assembly is less than by the obtained curvature of field and distortion figure Fig. 8 and spherical aberration figure Fig. 9
2%, the curvature of field is less than 0.1mm, and imaging distortion is small, and definition is high, and the picture shot under the optical lens is clear, and color is satisfied
Full, stereovision is enriched, and the optical lens obtained using Technical Design disclosed in the above embodiments of the present application has good
Imaging effect, it disclosure satisfy that the high pixel request of intelligent and portable electronic equipment.
The aspherical wide-angle optical lens of the high pixels of 5P in the present embodiment, while miniaturization is met also have it is higher into
The quality of picture, by length TTL≤4.3mm of the effective control camera lens of the collocation of each eyeglass, and cause the optical lens
Angle of visual field FOV≤75 degree, make the camera lens that there is larger coverage；It is preposition by diaphragm, F-number F.NO=can be obtained
2.0 large aperture, and F.NO=2.0 preposition large aperture designs, by increasing capacitance it is possible to increase the light-inletting quantity of shooting process, it ensure that shooting picture
The light levels in face.
The design of the larger angle of visual field of the present embodiment optical lens and larger aperture, it can ensure that enough light passes through
Amount, so as to while the overall length of the optical lens is reduced, ensure that the light levels of shooting picture, improve picture matter
Amount.
It should be noted that each embodiment in this specification is described by the way of progressive, each embodiment weight
Point explanation is all difference with other embodiment, between each embodiment identical similar part mutually referring to.
For device class embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is joined
See the part explanation of embodiment of the method.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Technical scheme provided herein is described in detail above, specific case used herein is to this Shen
Principle and embodiment please is set forth, the explanation of above example be only intended to help understand the present processes and its
Core concept；Meanwhile for those of ordinary skill in the art, according to the thought of the application, in embodiment and application
There will be changes in scope, in summary, this specification content should not be construed as the limitation to the application.
Claims (10)
1. a kind of optical lens, it is characterised in that included successively by the direction of thing side to image side along optical axis：
Diaphragm with same central shaft, the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, optical filter
And imaging surface；
Wherein, first lens have positive light coke, and its thing side is convex surface；
Second lens have negative power, and its image side surface is concave surface；
The thing side of 3rd lens is concave surface；
4th lens have positive light coke, and its thing side is concave surface；
5th lens have negative power, and its image side surface is M shapes；
First lens, the second lens, the 3rd lens, the 4th lens and the thing side of the 5th lens and image side surface are aspheric
Face structure；
The optical lens meets relational expression：1<F/F1<1.5、0<D45/F<0.1、15<F3/F4<101、1.16<TTL/F<
1.23；
Wherein, F is the total focal length of the optical lens, and F1 is the focal length of first lens, and D45 is the 4th lens and institute
Spacing distance of the 5th lens on optical axis is stated, F3 is the focal length of the 3rd lens, and F4 is the focal length of the 4th lens,
TTL is the overall length of the optical lens；
3rd lens have positive light coke, and the abbe number of the 3rd lens is 22~24；
The image side surface of first lens is convex surface, and the thing side of second lens is convex surface；
The optical lens meets relational expression：-0.3<F/R2<-0.2；Wherein, R2 is the curvature half of the first lens image side surface
Footpath.
2. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
0.2<(R5+R6)/(R5-R6)<3.4；
Wherein, R5 is the radius of curvature of the 3rd lens thing side；R6 is the radius of curvature of the 3rd lens image side surface.
3. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
1.4≤R1≤1.7；
Wherein, R1 is the radius of curvature of the first lens thing side.
4. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
1.6≤N2≤1.64；
Wherein, N2 is the refractive index of second lens.
5. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
1.91<T4/D45<2.48；
Wherein, T4 is thickness of the 4th lens on optical axis, and D45 is the 4th lens and the 5th lens in optical axis
On spacing distance.
6. optical lens according to claim 5, it is characterised in that the optical lens meets relational expression：
1.5<N1&N4&N5<1.6；
Wherein, N1 is the refractive index of first lens, and N4 is the refractive index of the 4th lens, and N5 is the 5th lens
Refractive index.
7. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
0.5<(T2+T4)/(D23+D34)<1；
Wherein, D23 is the spacing distance of second lens and the 3rd lens on optical axis, and D34 is the 3rd lens and the
Spacing distance of four lens on optical axis, T2 are thickness of second lens on optical axis, and T4 is the 4th lens in light
Thickness on axle.
8. optical lens according to claim 7, it is characterised in that the optical lens meets relational expression：
25<Vd2<35,50<Vd3<60；
Wherein, Vd2 is the Abbe number of second lens, and Vd3 is the Abbe number of the 3rd lens.
9. optical lens according to claim 1, it is characterised in that the optical lens meets relational expression：
0.4<D34/T4<0.7；
Wherein, D34 is the spacing distance of the 3rd lens and the 4th lens on optical axis, and T4 is the 4th lens in optical axis
On thickness.
10. a kind of camera device, it is characterised in that including the optical lens described in claim 1~9 any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072605.0A CN105511056B (en) | 2016-02-02 | 2016-02-02 | A kind of optical lens and camera device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072605.0A CN105511056B (en) | 2016-02-02 | 2016-02-02 | A kind of optical lens and camera device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105511056A CN105511056A (en) | 2016-04-20 |
| CN105511056B true CN105511056B (en) | 2018-04-03 |
Family
ID=55719155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072605.0A Active CN105511056B (en) | 2016-02-02 | 2016-02-02 | A kind of optical lens and camera device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105511056B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106154502B (en) * | 2016-09-29 | 2018-10-09 | 广东旭业光电科技股份有限公司 | A kind of pick-up lens and electronic equipment |
| CN106291883B (en) * | 2016-09-30 | 2019-01-01 | 浙江舜宇光学有限公司 | Pick-up lens and the photographic device for being equipped with the pick-up lens |
| EP3465313B1 (en) * | 2017-07-23 | 2023-08-30 | Corephotonics Ltd. | Compact folded lenses with large apertures |
| CN109856779B (en) * | 2018-12-31 | 2021-07-30 | 瑞声光学解决方案私人有限公司 | Image pickup optical lens |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540405A (en) * | 2010-12-13 | 2012-07-04 | 大立光电股份有限公司 | Optical imaging lens group |
| CN202330849U (en) * | 2011-07-19 | 2012-07-11 | 大立光电股份有限公司 | Optical image pickup lens |
| CN202794682U (en) * | 2012-04-19 | 2013-03-13 | 大立光电股份有限公司 | Optical imaging system group |
| CN104914558A (en) * | 2014-03-14 | 2015-09-16 | 光燿科技股份有限公司 | Imaging lens group |
| US9235028B2 (en) * | 2013-03-29 | 2016-01-12 | Fujifilm Corporation | Imaging lens and imaging apparatus including the imaging lens |
| CN205581382U (en) * | 2016-02-02 | 2016-09-14 | 广东旭业光电科技股份有限公司 | Optical lens and camera device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014160158A (en) * | 2013-02-20 | 2014-09-04 | Konica Minolta Inc | Imaging lens, imaging apparatus, and portable terminal |
-
2016
- 2016-02-02 CN CN201610072605.0A patent/CN105511056B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102540405A (en) * | 2010-12-13 | 2012-07-04 | 大立光电股份有限公司 | Optical imaging lens group |
| CN202330849U (en) * | 2011-07-19 | 2012-07-11 | 大立光电股份有限公司 | Optical image pickup lens |
| CN202794682U (en) * | 2012-04-19 | 2013-03-13 | 大立光电股份有限公司 | Optical imaging system group |
| US9235028B2 (en) * | 2013-03-29 | 2016-01-12 | Fujifilm Corporation | Imaging lens and imaging apparatus including the imaging lens |
| CN104914558A (en) * | 2014-03-14 | 2015-09-16 | 光燿科技股份有限公司 | Imaging lens group |
| CN205581382U (en) * | 2016-02-02 | 2016-09-14 | 广东旭业光电科技股份有限公司 | Optical lens and camera device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105511056A (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106597634B (en) | Image capturing lens system, image capturing device and electronic device | |
| CN105022140B (en) | Optical lens for imaging, image capturing device and mobile terminal | |
| CN107402431B (en) | Image capturing lens, image capturing device and electronic device | |
| CN105372792B (en) | Image capturing optical lens assembly, image capturing device and electronic device | |
| CN105022145B (en) | Image capturing optical system, image capturing device and mobile terminal | |
| CN106526802B (en) | Optical image capturing lens and image capturing device | |
| CN104516093B (en) | Optical imaging lens system, image capturing device and mobile terminal | |
| CN202837661U (en) | Image capturing optical lens assembly | |
| CN104297903B (en) | Image pickup lens assembly | |
| CN105319682B (en) | Photographing optical lens, image capturing device and electronic device | |
| CN104678537B (en) | Camera lens group, image capturing device and portable device | |
| CN104777592B (en) | Imaging optical lens, image capturing device and mobile terminal | |
| CN104635324B (en) | Image capturing lens assembly, image capturing device and mobile terminal | |
| CN102967925B (en) | Image pickup optical lens assembly | |
| CN205581382U (en) | Optical lens and camera device | |
| CN109061838A (en) | A kind of optical imaging lens and electronic equipment | |
| CN105700119B (en) | Imaging lens system, image capturing device and electronic device | |
| CN107132638A (en) | Optical image lens assembly, image capturing device and electronic device | |
| CN106990506A (en) | Imaging optical lens assembly and image capturing device | |
| CN103869451A (en) | Wide-angle camera lens group | |
| CN104570278B (en) | Image capturing lens assembly, image capturing device and mobile terminal | |
| CN106896470A (en) | Optical photographing lens assembly, image capturing device and portable electronic device | |
| CN104977696B (en) | Photographing optical lens assembly, image capturing device and mobile terminal | |
| CN107884906A (en) | Optical image capturing lens assembly, image capturing device and electronic device | |
| CN106997084A (en) | Optical lenses for image formation group, image-taking device and electronic installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190621 Address after: 554300 A, building 6, two phase of electricity supplier park, Tongren high tech Industrial Development Zone, Guizhou Patentee after: Guizhou Xu Ye photoelectric Co., Ltd. Address before: 523349 Second Road, Fulong Second Industrial Zone, Shipai Town, Dongguan City, Guangdong Province Patentee before: Guangdong Xu Ye Optoelectronics Technology incorporated company |