CN107765404A - Wide viewing angle imaging lens group - Google Patents
Wide viewing angle imaging lens group Download PDFInfo
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- CN107765404A CN107765404A CN201610666826.0A CN201610666826A CN107765404A CN 107765404 A CN107765404 A CN 107765404A CN 201610666826 A CN201610666826 A CN 201610666826A CN 107765404 A CN107765404 A CN 107765404A
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- viewing angle
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- 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
- G02B13/004—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 four lenses
-
- 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
A kind of wide viewing angle imaging lens group, sequentially have the second lens of positive refracting power, the 3rd lens for having positive refracting power comprising first lens for having negative refracting power, an aperture diaphragm, one from thing side to image side along one article of optical axis, and the 4th lens of a negative refracting power of tool, first lens, second lens, the 3rd lens and the 4th lens include one towards the thing side of thing side and one towards the image side surface of image side respectively.The image side surface of first lens is concave surface.The image side surface of second lens is convex surface.The image side surface of 3rd lens is convex surface, and the thing side of the 3rd lens and the image side surface at least one of which are aspherical.The image side surface of 4th lens is convex surface, and the thing side of the 4th lens and the image side surface are all aspherical.Wherein, the wide viewing angle imaging lens group meets 0.84<|f1|/f<2.28、0.52<f2/f<1.26、0.49<f3/f<1.12、0.32<|f4|/f<0.70、FOV>100 ° and TTL/ImagH<2.80.
Description
Technical field
The present invention relates to a kind of lens combination, more particularly to a kind of wide viewing angle imaging lens group.
Background technology
The specification of portable electronic product is maked rapid progress, its key part and component imaging lens also more diversified development, should
With filmed image is not only only limitted to making video recording, also plus environmental surveillance, recording journey photography etc., and with image sensing technology
Progressive, requirement of the consumer for image quality etc. also more improves.Therefore the design not only good imaging of demand of imaging lens
Quality, less lens space, for being also palpus in response to the lifting of dynamic and the environment of insufficient light, the angle of visual field and aperture size
The problem considered.
Imaging lens design not has the good camera lens scaled down of image quality concurrently imaging matter with regard to that can produce merely
Amount and the imaging lens of miniaturization, design process involve material property, it is necessary to the production faces such as making, assembling yield are contemplated
Practical problem.
So the obvious height of technical difficulty of miniaturization camera lens has camera lens, therefore how to produce micro- compared with Wide-angle
Type imaging lens, and continue to lift its image quality, it is always the target that industry persistently progresses greatly.
The content of the invention
It is an object of the invention to provide one kind can effectively correct system aberration, and reach the wide viewing angle of Wide-angle simultaneously
Imaging lens group.
The wide viewing angle imaging lens group of the present invention, from thing side to image side along an optical axis sequentially comprising the negative refracting power of a tool
The first lens, an aperture diaphragm, the second lens of positive refracting power of tool, the 3rd lens of positive refracting power of tool, and
4th lens of the negative refracting power of one tool, first lens, second lens, the 3rd lens and the 4th lens include respectively
One towards thing side and the thing side for passing through imaging light and one towards image side and the image side surface that passes through imaging light.
The image side surface of first lens is the concave surface for concaving towards image side.The image side surface of second lens is to be convex to image side
Convex surface.The image side surface of 3rd lens is the convex surface for being convex to image side, and the thing side of the 3rd lens and the image side surface are wherein
At least one is aspherical.The thing side of 4th lens is the aspherical concave for concaving towards thing side, the picture of the 4th lens
Side is the convex surface for being convex to image side, and the thing side of the 4th lens and the image side surface are all aspherical.
Wherein, the wide viewing angle imaging lens group meets 0.84<|f1|/f<2.28、0.52<f2/f<1.26、0.49<f3/f<
1.12、0.32<|f4|/f<0.70、FOV>100 ° and TTL/ImagH<2.80, f1 be the focal length of first lens, f2 for this
The focal length of two lens, f3 are the focal length of the 3rd lens, and f4 is the focal length of the 4th lens, and f is the wide viewing angle imaging lens group
System total focal length, FOV is the total angle of visual field of system of the wide viewing angle imaging lens group, and TTL is the wide viewing angle imaging lens group
System length, ImagH are the maximum image height of the wide viewing angle imaging lens group.
The wide viewing angle imaging lens group of the present invention also meets V1<40, V1 be the Abbe number of first lens.
The wide viewing angle imaging lens group of the present invention also meets V4<40, V4 be the Abbe number of the 4th lens.
The beneficial effects of the present invention are：It is concave surface, positioned at this to have negative refracting power and its image side surface by first lens
The aperture diaphragm between first lens and second lens, second lens have positive refracting power and its image side surface be convex surface, this
It is convex surface, the thing side of the 3rd lens and the image side surface at least one of which that three lens, which have positive refracting power and its image side surface,
To have negative refracting power and its image side surface be convex surface to be aspherical, the 4th lens, and the thing side of the 4th lens and
The image side surface is all aspherical lens refracting power and component structure configuration, and every Optical Parametric of the wide viewing angle imaging lens group
When the relational expression of several meets above-mentioned condition formula, wide viewing angle imaging lens group of the present invention can effectively correct system aberration, reach simultaneously
To the purpose with the total angle of visual field of wider system.
Brief description of the drawings
The other features and effect of the present invention, will clearly be presented in the embodiment with reference to schema, wherein：
Fig. 1 is the lens configuration schematic diagram of a first embodiment of wide viewing angle imaging lens group of the present invention；
Fig. 2 is the longitudinal spherical aberration of the first embodiment, astigmatism curvature of field curve and distortion aberration figure；
Fig. 3 is a tabular drawing, illustrates the optical data of each lens of the first embodiment；
Fig. 4 is a tabular drawing, illustrates the conical surface coefficient and asphericity coefficient of each lens of the first embodiment；
Fig. 5 is the lens configuration schematic diagram of a second embodiment of wide viewing angle imaging lens group of the present invention；
Fig. 6 is the longitudinal spherical aberration of the second embodiment, astigmatism curvature of field curve and distortion aberration figure；
Fig. 7 is a tabular drawing, illustrates the optical data of each lens of the second embodiment；
Fig. 8 is a tabular drawing, illustrates the conical surface coefficient and asphericity coefficient of each lens of the second embodiment；
Fig. 9 is the lens configuration schematic diagram of a 3rd embodiment of wide viewing angle imaging lens group of the present invention；
Figure 10 is the longitudinal spherical aberration of the 3rd embodiment, astigmatism curvature of field curve and distortion aberration figure；
Figure 11 is a tabular drawing, illustrates the optical data of each lens of the 3rd embodiment；
Figure 12 is a tabular drawing, illustrates the conical surface coefficient and asphericity coefficient of each lens of the 3rd embodiment；
Figure 13 is the lens configuration schematic diagram of a fourth embodiment of wide viewing angle imaging lens group of the present invention；
Figure 14 is the longitudinal spherical aberration of the fourth embodiment, astigmatism curvature of field curve and distortion aberration figure；
Figure 15 is a tabular drawing, illustrates the optical data of each lens of the fourth embodiment；
Figure 16 is a tabular drawing, illustrates the conical surface coefficient and asphericity coefficient of each lens of the fourth embodiment；
Figure 17 is a tabular drawing, illustrates that the first embodiment of wide viewing angle imaging lens group of the present invention is implemented to the 4th
The optical parametric of example.
Embodiment
Before the present invention is described in detail, it shall be noted that in the following description content, similar element is with identical
Number to represent.
Refering to Fig. 1 and Fig. 2, a first embodiment of wide viewing angle imaging lens group of the present invention, from thing side to image side along one
Article optical axis I sequentially includes 1, one, the first lens, 2,3, one, the 3rd lens of the second lens of aperture diaphragm 10, one
4th lens 4, and an optical filter 5.When the light for being sent or being reflected positioned at the object of thing side by one enters the wide viewing angle
Imaging lens group, and via first lens 1, the aperture diaphragm 10, second lens 2, the 3rd lens 3, the 4th lens
Behind 4, and the optical filter 5, an image can be formed in an imaging surface 100 (Image Plane) positioned at image side.In addition, it is
Meet the light-weighted demand of product, first lens 1, second lens 2, the 3rd lens 3 and the 4th lens 4 are all modeling
Made by glue material matter, but first lens 1, the material of second lens 2, the 3rd lens 3 and the 4th lens 4 be not still with this
For limitation.
First lens 1 have negative refracting power and including one towards thing side and the thing side 11 for passing through imaging light and
One towards image side and the image side surface 12 that passes through imaging light.The thing side 11 of first lens 1 is to be convex to the convex of thing side
Face, the image side surface 12 of first lens 1 are the concave surface for concaving towards image side.The focal length of first lens 1 is -3.1560mm, and this
The Abbe number (Abbe number) of one lens 1 is 30.5.
Second lens 2 have positive refracting power and including one towards thing side and the thing side 21 for passing through imaging light and
One towards image side and the image side surface 22 that passes through imaging light.The thing side 21 of second lens 2 is to be convex to the convex of thing side
Face, the image side surface 22 of second lens 2 are the convex surface for being convex to image side.The focal length of second lens 2 is 2.0790mm, and this second
The Abbe number of lens 2 is 56.
3rd lens 3 have positive refracting power and including one towards thing side and the thing side 31 for passing through imaging light and
One towards image side and the image side surface 32 that passes through imaging light.The thing side 31 of 3rd lens 3 is to be convex to the convex of thing side
Face, the image side surface 32 of the 3rd lens 3 are the convex surface for being convex to image side.The focal length of 3rd lens 3 is 2.0590mm, the 3rd
The Abbe number of lens 3 is 56.
4th lens 4 have negative refracting power and including one towards thing side and the thing side 41 for passing through imaging light and
One towards image side and the image side surface 42 that passes through imaging light.The thing side 41 of 4th lens 4 is to concave towards the recessed of thing side
Face, the image side surface 42 of the 4th lens 4 are the convex surface for being convex to image side.The focal length of 4th lens 4 is -1.4330mm, and this
The Abbe number of four lens 4 is 21.
The optical filter 5 is without refracting power and including one towards thing side and the thing side 51 and one that passes through imaging light
It is individual towards image side and the image side surface 52 that passes through imaging light.The optical filter 5 is infrared filter (IR Cut Filter),
For preventing the infrared transmitting in image light from influenceing image quality to the imaging surface 100, but it is not limited.
In the present embodiment, only said lens have refracting power.Other detailed optical data of the first embodiment are such as
Shown in Fig. 3, and system total focal length (the effective focal of the wide viewing angle imaging lens group of the first embodiment
Length, abbreviation EFL) it is 2.6626mm, the total angle of visual field of system (field of view, abbreviation FOV) is 140 °, system length
For 4.97mm, the imaging maximum image height of the wide viewing angle imaging lens group is 2.5mm, and the f-number (Fno) of the aperture diaphragm 10 is
2.8.Wherein, the system length of the wide viewing angle imaging lens group refers to the thing side 11 by first lens 1 to the imaging surface
100 on optical axis I between distance.
First lens 1, second lens 2, the 3rd lens 3, and the thing side 11,21,31,41 of the 4th lens 4
And image side surface 12,22,32,42, eight faces are aspherical altogether, and aspherical defined according to following equation：
Wherein：
Y：The distance of point and optical axis I in aspheric curve；
Z：Aspherical depth is (apart from the point that optical axis I is Y on aspherical, with being tangential on cutting for summit on aspherical optical axis I
Face, vertical range between the two)；
R:The radius of curvature of lens surface；
K：Conical surface coefficient (conic constant)；
A2i：2i rank asphericity coefficients.
First lens 1, second lens 2, the 3rd lens 3, and the thing side 11,21,31,41 of the 4th mirror 4 and
Conical surface coefficient and every asphericity coefficient of the image side surface 12,22,32,42 in formula (1) are as shown in Figure 4.
Refering to Fig. 2, the schema of (a) illustrates the longitudinal spherical aberration of the first embodiment (longitudinal spherical
Aberration), the schema of (b) and (c) then illustrates the first embodiment relevant sagitta of arc on the imaging surface 100 respectively
(sagittal) astigmatic image error (astigmatism aberration) in direction, and the astigmatism in meridian (tangential) direction
Aberration, the schema of (d) then illustrate distortion aberration (distortion of the first embodiment on the imaging surface 100
aberration).In longitudinal spherical aberration schema Fig. 2 (a) of this first embodiment, curve is all very close to simultaneously formed by each wavelength
It is close to centre, illustrate that the Off-axis-light of each wavelength different height is all concentrated near imaging point, by each wavelength
The skewness magnitude level of curve can find out that the imaging point deviation of the Off-axis-light of different height is controlled in the range of -0.040mm to 0mm,
So the present embodiment is obviously improved the spherical aberration of phase co-wavelength really, in addition, three kinds represent the distance of wavelength to each other and also quite connect
Closely, the image space for representing different wave length light is quite concentrated, thus chromatic aberation is also obviously improved.
In Fig. 2 (b) and 2 (c) two astigmatic image error schemas, the astigmatic image error in display sagitta of arc direction is in whole visual field model
Focal length variations amount in enclosing falls in the range of -0.040mm to 0mm, and meridian direction astigmatic image error in whole field range
Focal length variations amount fall in the range of -0.025mm to 0mm, illustrate that the optical system of this first embodiment can effective aberration correction.
And in the range of Fig. 2 (d) distortion aberration schema then shows that the distortion aberration of this first embodiment maintains -60% to 0%, say
The distortion aberration of bright first embodiment has met the image quality requirement of optical system, so this first embodiment can expand
Under conditions of the total angle of visual field of system, favorable optical performance is maintained.
Be a second embodiment of wide viewing angle imaging lens group of the present invention refering to Fig. 5, its with the first embodiment substantially
Similar, only each optical data, conical surface coefficient, the spacing parameter of every asphericity coefficient and interelement are more or less somewhat different.
The focal length of first lens 1 is -3.6110mm, and the Abbe number of first lens 1 is 30.5, second lens 2
Focal length is 2.1230mm, and the Abbe numbers of second lens 2 is 56, and the focal lengths of the 3rd lens 3 is 2.0490mm, the 3rd lens
3 Abbe number is 56, and the focal length of the 4th lens 4 is -1.2640mm, and the Abbe number of the 4th lens 4 is 22.4.
Other detailed opticals of the second embodiment and the spacing parameter data of interelement are as shown in fig. 7, and second reality
The system total focal length for applying the wide viewing angle imaging lens group of example is 2.5256mm, and the total angle of visual field of system is 130 °, and system length is
5.0mm, the imaging maximum image height of the wide viewing angle imaging lens group is 2.3mm, and the f-number (Fno) of the aperture diaphragm 10 is 2.8.
First lens 1, second lens 2, the 3rd lens 3 of the second embodiment, and the thing side of the 4th lens 4
The conical surface coefficient and every asphericity coefficient such as Fig. 8 institutes of face 11,21,31,41 and image side surface 12,22,32,42 in formula (1)
Show.
Refering to Fig. 6, by the longitudinal spherical aberration of (a), (b), (c) astigmatic image error, and the distortion aberration schema of (d) can find out
This second embodiment can also maintain favorable optical performance.
Refering to Fig. 9, for a 3rd embodiment of the wide viewing angle imaging lens group of the invention, it is big with the first embodiment
Cause similar, only each optical data, conical surface coefficient, more or less some are not or not the spacing parameter of every asphericity coefficient and interelement
Together.
The focal length of first lens 1 is -4.0530mm, and the Abbe number of first lens 1 is 30.5, second lens 2
Focal length is 1.9680mm, and the Abbe numbers of second lens 2 is 56, and the focal lengths of the 3rd lens 3 is 2.2760mm, the 3rd lens
3 Abbe number is 56, and the focal length of the 4th lens 4 is -1.4220mm, and the Abbe number of the 4th lens 4 is 23.
Other detailed opticals of the 3rd embodiment and the spacing parameter data of interelement are as shown in figure 11, and the 3rd is real
The system total focal length for applying the wide viewing angle imaging lens group of example is 2.6411mm, and the total angle of visual field of system is 120 °, and system length is
4.67mm, the imaging maximum image height of the wide viewing angle imaging lens group is 2.3mm, and the f-number (Fno) of the aperture diaphragm 10 is
2.8。
First lens 1, second lens 2, the 3rd lens 3 of the 3rd embodiment, and the thing side of the 4th lens 4
The conical surface coefficient and every asphericity coefficient such as Figure 12 institutes of face 11,21,31,41 and image side surface 12,22,32,42 in formula (1)
Show.
Refering to Figure 10, by the longitudinal spherical aberration of (a), (b), (c) astigmatic image error, and the distortion aberration schema of (d) can see
Favorable optical performance can also be maintained by going out this third embodiment.
Refering to Figure 13, for a fourth embodiment of wide viewing angle imaging lens group of the present invention, it is big with the first embodiment
Cause similar, only each optical data, conical surface coefficient, more or less some are not or not the spacing parameter of every asphericity coefficient and interelement
Together.
The focal length of first lens 1 is -3.2130mm, and the Abbe number of first lens 1 is 30.5, second lens 2
Focal length is 2.0920mm, and the Abbe numbers of second lens 2 is 56, and the focal lengths of the 3rd lens 3 is 2.0340mm, the 3rd lens
3 Abbe number is 56, and the focal length of the 4th lens 4 is -1.4370, and the Abbe number of the 4th lens 4 is 23.
Other detailed opticals of the fourth embodiment and the spacing parameter data of interelement are as shown in figure 15, and the 4th is real
The system total focal length for applying the wide viewing angle imaging lens group of example is 2.6656mm, and the total angle of visual field of system is 140 °, and system length is
4.97mm, the imaging maximum image height of the wide viewing angle imaging lens group is 2.5mm, and the f-number (Fno) of the aperture diaphragm 10 is
2.8。
First lens 1, second lens 2, the 3rd lens 3 of the fourth embodiment, and the thing side of the 4th lens 4
The conical surface coefficient and every asphericity coefficient such as Figure 16 institutes of face 11,21,31,41 and image side surface 12,22,32,42 in formula (1)
Show.
Refering to Figure 14, by the longitudinal spherical aberration of (a), (b), (c) astigmatic image error, and the distortion aberration schema of (d) can see
Favorable optical performance can also be maintained by going out this fourth embodiment.
Refering to Figure 17, for the tabular drawing of every optical parametric of aforementioned four embodiment, wide viewing angle imaging lens of the present invention
Group is concave surface, between first lens 1 and second lens 2 by the negative refracting power of first lens 1 tool and its image side surface 12
The aperture diaphragm 10, second lens 2 have positive refracting power and its image side surface 22 has positive flexion for convex surface, the 3rd lens 3
Power and its image side surface 32 be convex surface, the thing side 31 of the 3rd lens 3 and at least one of which of image side surface 32 be it is aspherical,
The have negative refracting power and its image side surface 42 of 4th lens 4 are convex surface, and the thing side 41 of the 4th lens 4 and the picture
Side 42 is all aspherical lens refracting power and component structure configuration, and every optical parametric of the wide viewing angle imaging lens group
Between relational expression when meeting following condition formulae, wide viewing angle imaging lens group of the present invention can effectively correct system aberration, reach simultaneously
Purpose with the total angle of visual field of wider system：0.84<|f1|/f<2.28、0.52<f2/f<1.26、0.49<f3/f<1.12、
0.32<|f4|/f<0.7 and TTL/ImagH<2.80, wherein, f1 is the focal length of first lens 1, and f2 is second lens 2
Focal length, f3 be the 3rd lens 3 focal length, f be the wide viewing angle imaging lens group system total focal length, TTL be the wide viewing angle into
As the system length of lens group, ImagH is the maximum image height of the wide viewing angle imaging lens group.
When | f1 | when/f is less than above-mentioned endpoint value, the aberration of the wide viewing angle imaging lens group is bigger, particularly the curvature of field and picture
Dissipate more serious.When | f1 | when/f is more than above-mentioned endpoint value, tortuous light angle is smaller, and the total angle of visual field FOV of system does not allow to be easy to do greatly.
When f2/f is less than above-mentioned endpoint value, the aberration of the wide viewing angle imaging lens group is bigger, and the particularly curvature of field and astigmatism is more serious.When
When f2/f is more than above-mentioned endpoint value, the system length TTL of the wide viewing angle imaging lens group is then longer.When f3/f is less than above-mentioned end points
During value, the aberration of the wide viewing angle imaging lens group is bigger, and the particularly curvature of field and astigmatism is more serious.When f3/f is more than above-mentioned endpoint value
When, the system length TTL of the wide viewing angle imaging lens group is then longer.As | f4 | when/f is less than above-mentioned endpoint value, the wide viewing angle into
As the aberration of lens group is bigger, particularly lateral chromatic aberration is more serious.When | f4 | when/f is more than above-mentioned endpoint value, wide viewing angle imaging
The aberration of lens group is bigger, particularly distorts more serious.
In addition, all have negative refracting power by the lens 4 of the first lens 1 and the 4th and all there is high dispersion (low Abbe
Number), that is, when first lens 1 and four lens 4 both Abbe numbers meet following condition formulae, wide viewing angle imaging of the present invention
Lens group can effectively correct system aberration：V1<40 and V4<40, wherein, V1 is the Abbe number of first lens 1, and V4 is the 4th
The Abbe number of lens 4, when V1 or V4 is more than above-mentioned endpoint value, the system aberration of the wide viewing angle imaging lens group can correct not
Foot.
Through as shown in the above description, wide viewing angle imaging lens group of the present invention can reach the purpose of the present invention really.
As described above, only embodiments of the invention are when the scope that the present invention can not be limited with this implement, i.e., all
The simple equivalent changes and modifications made according to claims of the present invention and description, all still belongs to the scope of the present invention.
Claims (3)
- A kind of 1. wide viewing angle imaging lens group, from thing side to image side along an optical axis sequentially comprising first lens, a hole Footpath light bar, second lens, the 3rd lens, and the 4th lens of a negative refracting power of tool, first lens, this second Lens, the 3rd lens and the 4th lens include one towards thing side and the thing side for passing through imaging light and one respectively Towards image side and the image side surface that passes through imaging light, it is characterised in that：The negative refracting power of first lens tool, and the image side surface of first lens is the concave surface for concaving towards image side；Second lens have positive refracting power, and the image side surface of second lens is the convex surface for being convex to image side；3rd lens have positive refracting power, and the image side surface of the 3rd lens is the convex surface for being convex to image side, the 3rd lens The thing side and the image side surface at least one of which are aspherical；The negative refracting power of 4th lens tool, and the image side surface of the 4th lens is the convex surface for being convex to image side, the 4th lens The thing side and the image side surface are all aspherical；Wherein, the wide viewing angle imaging lens group meets 0.84<|f1|/f<2.28、0.52<f2/f<1.26、0.49<f3/f< 1.12、0.32<|f4|/f<0.70、FOV>100 ° and TTL/ImagH<2.80, f1 be the focal length of first lens, f2 for this The focal length of two lens, f3 are the focal length of the 3rd lens, and f4 is the focal length of the 4th lens, and f is the wide viewing angle imaging lens group System total focal length, FOV is the total angle of visual field of system of the wide viewing angle imaging lens group, and TTL is the wide viewing angle imaging lens group System length, ImagH are the maximum image height of the wide viewing angle imaging lens group.
- 2. wide viewing angle imaging lens group according to claim 1, it is characterised in that：Also meet V1<40, wherein, V1 is should The Abbe number of first lens.
- 3. wide viewing angle imaging lens group according to claim 1, it is characterised in that：Also meet V4<40, wherein, V4 is should The Abbe number of 4th lens.
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| CN110727090A (en) * | 2018-07-16 | 2020-01-24 | 宁波舜宇车载光学技术有限公司 | Optical lens |
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| CN114755810A (en) * | 2022-06-15 | 2022-07-15 | 江西晶超光学有限公司 | Imaging lens group, camera module and electronic equipment |
| US11960059B2 (en) | 2018-05-03 | 2024-04-16 | Zhejiang Sunny Optical Co., Ltd | Optical imaging system |
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| US11960059B2 (en) | 2018-05-03 | 2024-04-16 | Zhejiang Sunny Optical Co., Ltd | Optical imaging system |
| CN110727090A (en) * | 2018-07-16 | 2020-01-24 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN110727090B (en) * | 2018-07-16 | 2021-07-02 | 宁波舜宇车载光学技术有限公司 | Optical lens |
| CN108897123A (en) * | 2018-09-21 | 2018-11-27 | 协益电子（苏州）有限公司 | Optical lens and automobile data recorder |
| CN112748519A (en) * | 2020-08-13 | 2021-05-04 | 恒烨智能光学(桐乡乌镇)有限公司 | Large wide-angle optical lens |
| CN114755810A (en) * | 2022-06-15 | 2022-07-15 | 江西晶超光学有限公司 | Imaging lens group, camera module and electronic equipment |
| CN114755810B (en) * | 2022-06-15 | 2022-10-21 | 江西晶超光学有限公司 | Imaging lens group, camera module and electronic equipment |
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Application publication date: 20180306 |