CN205750081U - Wide-angle lens - Google Patents
Wide-angle lens Download PDFInfo
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- CN205750081U CN205750081U CN201620340969.8U CN201620340969U CN205750081U CN 205750081 U CN205750081 U CN 205750081U CN 201620340969 U CN201620340969 U CN 201620340969U CN 205750081 U CN205750081 U CN 205750081U
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- lens
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- focal length
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Abstract
This utility model provides a kind of wide-angle lens, including the first lens sequentially configured by thing side to image side along optical axis, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens；First lens are the meniscus lens with negative power, and its concave surface is towards image side；Second lens are the lenticular thin lens with positive light coke；3rd lens have the meniscus lens of negative power, and its concave surface is towards image side；4th lens are the lenticular thick lens with positive light coke；5th lens are the double concave thin lens with negative power；6th lens are the falcate thin lens with positive light coke, and its concave surface is towards image side.This optical lens applies field of view angle on mobile phone to arrive Radix Rumicis requirement, and the image quality from center to edge all keeps the biggest advantage.This wide-angle lens applies imaging angle when taking pictures on mobile phone to have 96 degree, and the imaging angle of mobile phone own only has about 70 degree.
Description
Technical field
This utility model relates to lens technology field, is specifically related to a kind of wide-angle lens.
Background technology
Wide-angle lens has that lens focus is the shortest, visual angle is wider and the feature such as the depth of field is the deepest, is relatively suitable for shooting bigger
The photo of scene, such as subject matters such as building, landscape.Along with the development of science and technology, electronic product (such as mobile phone, panel computer etc.)
Possess image-taking device, but its focal length has been changeless, thus the demand of the different scene of shooting cannot have been met.To this end, it is logical
Often need to be attached on electronic product wide-angle lens, diminish with the focal length by mobile phone photographic camera lens itself, now mobile phone and attached
Add camera lens and be equivalent to one piece of micro-single wide-angle lens together, suitable photo can be taken in occasions such as landscape.
But, existing wide-angle lens is usually present field of view angle, and not reach Radix Rumicis requirement, edge imaging image quality of taking pictures the poorest
Defect.To this end, prior art generally uses the mode increasing lens numbers promote the resolution of wide-angle lens.Such as,
Chinese patent CN 105158878 A discloses a kind of eight eyeglass bugeye lenses, include lens barrel and in lens barrel along thing side extremely
The first lens that image space is sequentially coaxially arranged, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th
Lens and the 8th lens, and these first lens, the second lens, the 3rd lens and the 5th lens are the coquille of negative power
Sheet；4th lens, the 6th lens, the 7th lens and the 8th lens are the spherical lens of positive light coke.
But, the design of above-mentioned increase lens numbers makes camera lens volume become big, it is impossible to reach camera lens miniaturization.Cause
How this, provide a kind of field of view angle to reach the compact wide-angle lens that Radix Rumicis requirement, edge imaging image quality of taking pictures are good, become mesh
Front technical barrier urgently to be resolved hurrily.
Utility model content
Therefore, the technical problems to be solved in the utility model is that the field of view angle overcoming existing pantoscope to exist reaches not
Require to Radix Rumicis, the poorest defect of edge imaging image quality of taking pictures.
To this end, this utility model provides a kind of wide-angle lens, including the sequentially configured by thing side to image side along optical axis
One lens, the second lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens；First lens are to have negative power
Meniscus lens, and its concave surface is towards image side；Described second lens are the lenticular thin lens with positive light coke；Described 3rd
Lens have the meniscus lens of negative power, and its concave surface is towards image side；Described 4th lens are have positive light coke double
Convex thick lens；Described 5th lens are the double concave thin lens with negative power；Described 6th lens are burnt for having positive light
The falcate thin lens of degree, and its concave surface is towards image side.
As preferably, described wide-angle lens satisfies the following conditional expression:
-0.95 ＜ f1-2/ f ＜-0.7；
0.48 ＜ f3-6/ f ＜ 0.73；
-1.60 ＜ f1-2/f3-6＜-1.0；
-0.8 ＜ f1-3/f4-6＜-0.55；
-0.9 ＜ f3-4/f5-6＜-0.65；
Wherein, f is the effective focal length of described wide-angle lens, f1-2It is described first lens and the combination of described second lens
Focal length, f3-6It is described 3rd lens, described 4th lens, described 5th lens and the combined focal length of described 6th lens, f1-3
It is described first lens, described second lens and the combined focal length of described 3rd lens, f3-4It is described 3rd lens and described
The combined focal length of four lens, f5-6It is described 5th lens and the combined focal length of described 6th lens, f4-6Be described 4th lens,
Combined focal length between described 5th lens and described 6th lens.
As preferably, described wide-angle lens satisfies the following conditional expression:
-0.85 ＜ f1-2/ f ＜-0.80；
0.58 ＜ f3-6/ f ＜ 0.63；
-1.50 ＜ f1-2/f3-6＜-1.10；
-0.70 ＜ f1-3/f4-6＜-0.65；
-0.80 ＜ f3-4/f5-6＜-0.75.
As preferably, described wide-angle lens is the most satisfied: TTL ＜ 24.0mm, and wherein TTL is the first lens along optical axis direction
Thing side to the distance between imaging surface.
As preferably, the external diameter of described first lens to described 6th lens reduces successively.
As preferably, the external diameter of described first lens is less than 25mm, and the overall length of described wide-angle lens is less than 24mm.
As preferably, 1.68 ＜ Nd ＜ 1.86,40 ＜ Vd ＜ 63, Nd are the d optical index of described first lens, and Vd is institute
State the Abbe number of the first lens.
As preferably, described first lens, described second lens, described 3rd lens, described 5th lens and described
Six lens are thin lens, and described 4th lens are thick lens.
As preferably, described first lens to described 6th lens are spherical lens.
As preferably, described wide-angle lens is the auxiliary lens of mobile phone, and described wide-angle lens is installed on the shooting of mobile phone
Above Tou.
Technical solutions of the utility model, have the advantage that
The wide-angle lens that this utility model provides, including the first lens sequentially configured by thing side to image side along optical axis, the
Two lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, and use negative, positive, negative, positive, negative, positive optical system
Structure, and reach optimum efficiency by imaging effect under multiplet control different object distances simultaneously, make this optical lens apply
On mobile phone, field of view angle arrives Radix Rumicis requirement, but maximum distortion is within 2%, and the image quality from center to edge is all protected
Hold the biggest advantage.First lens, the 3rd lens, the 5th lens have negative power, thus the realization for ultra-large vision field carries
Having supplied architecture basics, the second lens, the 4th lens and the 6th lens have positive light coke so that before the image space interarea of optical system
Move, so that system length shortens.This optical lens can be used in Iphone 6, Iphone 6Plus, Iphone 6s,
On Iphone 6sPlus, and the mobile phone such as Semen setariae Note, Huawei.And this wide-angle lens is applied to become when taking pictures on mobile phone
Image angle degree has 96 degree, and the imaging angle of mobile phone own only has about 70 degree, identical distance can shoot bigger scope and
Maximum distortion is within 2%.
The wide-angle lens that this utility model provides, by being defined the distribution of the focal power of wide-angle lens so that it is relatively
On market, other products not only remote image quality is high but also closely still keep picture element not decline such as 0.25m.
The wide-angle lens that this utility model provides, the external diameter of described first lens is less than 25mm, described wide-angle lens total
Long less than 24mm, really realize volume little.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the Fig. 1 wide-angle lens for providing in this utility model embodiment；
The curvature of field figure of the Fig. 2 wide-angle lens for providing in this utility model embodiment；
The distortion figure of the Fig. 3 wide-angle lens for providing in this utility model embodiment；
The lateral chromatic aberration figure of the Fig. 4 wide-angle lens for providing in this utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.Institute below additionally,
Just can phase as long as technical characteristic involved in this utility model difference embodiment described does not constitutes conflict each other
Combine mutually.
Present embodiments provide a kind of wide-angle lens, as it is shown in figure 1, include sequentially configuring along optical axis by thing side to image side
First lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens 5 and the 6th lens 6；First lens 1 are for having
The meniscus lens of negative power, and its concave surface is towards image side；Described second lens 2 are for have the lenticular thin of positive light coke
Mirror；Described 3rd lens 3 have the meniscus lens of negative power, and its concave surface is towards image side；Described 4th lens 4 are for having
The lenticular thick lens of positive light coke；Described 5th lens 5 are the double concave thin lens with negative power；Described 6th lens
6 is the falcate thin lens with positive light coke, and its concave surface is towards image side.
The present embodiment provide wide-angle lens, including the first lens sequentially configured by thing side to image side along optical axis, second
Lens, the 3rd lens, the 4th lens, the 5th lens and the 6th lens, and use negative, positive, negative, positive, negative, positive optical system configuration
Structure, and reach optimum efficiency by imaging effect under multiplet control different object distances simultaneously, make this optical lens apply
On mobile phone, field of view angle arrives Radix Rumicis requirement, but maximum distortion is within 2%, and the image quality from center to edge all keeps
The biggest advantage.This optical lens can be used in Iphone 6, Iphone 6Plus, Iphone 6s, Iphone 6sPlus,
And on the mobile phone such as Semen setariae Note, Huawei.And this wide-angle lens applies imaging angle when taking pictures on mobile phone to have 96 degree, and
The imaging angle of mobile phone own only has about 70 degree, identical distance can shoot bigger scope and maximum distortion 2% with
In.
First lens 1 are the meniscus lens with negative power, and it has reduction distortion and adjusts big field rays work
With.First lens the 1, the 3rd lens the 3, the 5th lens 5 have negative power, thus the realization for ultra-large vision field provides structure base
Plinth, the second lens the 2, the 4th lens 4 and the 6th lens 6 have positive light coke so that the image space main face forward shift of optical system, thus
System length is shortened.
As preferred embodiment, described wide-angle lens satisfies the following conditional expression:
-0.95 ＜ f1-2/ f ＜-0.7；
0.48 ＜ f3-6/ f ＜ 0.73；
-1.60 ＜ f1-2/f3-6＜-1.0；
-0.8 ＜ f1-3/f4-6＜-0.55；
-0.9 ＜ f3-4/f5-6＜-0.65；
Wherein, f is the effective focal length of described wide-angle lens, f1-2It is described first lens 1 and the group of described second lens 2
Complex focus, f3-6The combination being described 3rd lens 3, described 4th lens 4, described 5th lens 5 and described 6th lens 6 is burnt
Away from, f1-3It is described first lens 1, described second lens 2 and the combined focal length of described 3rd lens 3, f3-4It is described 3rd saturating
Mirror 3 and the combined focal length of described 4th lens 4, f5-6It is described 5th lens 5 and the combined focal length of described 6th lens 6, f4-6
Described 4th lens 4, combined focal length between described 5th lens 5 and described 6th lens 6.
By the distribution of the focal power of wide-angle lens is defined so that it is on relative market, other products become the most at a distance
Picture element amount is high and closely still keeps picture element not decline such as 0.25m.It is additionally, since the first lens to the 3rd piece of lens entirety
For negative power, the 4th lens to the 6th lens entirety become positive light coke, and ratio meets and requires :-0.8 ＜ f1-3/f4-6＜-
0.55, thus increase the field of view angle of wide-angle lens.
As further preferred embodiment, described wide-angle lens satisfies the following conditional expression:
-0.85 ＜ f1-2/ f ＜-0.80；
0.58 ＜ f3-6/ f ＜ 0.63；
-1.50 ＜ f1-2/f3-6＜-1.10；
-0.70 ＜ f1-3/f4-6＜-0.65；
-0.80 ＜ f3-4/f5-6＜-0.75.
It should be noted that this utility model provide wide-angle lens focal power distribution be not limited in above-mentioned preferably
Example, it can use any common setup parameter in prior art, and those skilled in the art can be according to the performance of wide-angle lens
Need it is set.
As preferred embodiment, described wide-angle lens is the most satisfied: TTL ＜ 24.0mm, and wherein TTL is along optical axis direction
The thing side of upper first lens 1 is to the distance between imaging surface.
As preferred embodiment, the external diameter of described first lens 1 to described 6th lens 6 reduces successively.The most excellent
Choosing, the external diameter of described first lens 1 is less than 25mm, and the overall length of described wide-angle lens is less than 24mm.
Above-mentioned wide-angle lens, by being defined each lens sizes, really makes wide-angle lens have the little feature of volume.
As further preferred embodiment, 1.68 ＜ Nd ＜ 1.86,40 ＜ Vd ＜ 63, Nd are described first lens 1
D optical index, Vd is the Abbe number of described first lens 1.
As preferred embodiment, described first lens 1, described second lens 2, described 3rd lens 3, the described 5th
Lens 5 and described 6th lens 6 are thin lens, and described 4th lens 4 are thick lens.
Above-mentioned set-up mode can reduce light change in refraction angle between each lens, controls image deformation.
As preferred embodiment, the material of described first lens 1 to described 6th lens 6 is optical glass, institute
State the first lens 1 and be spherical lens to described 6th lens 6.
It should be noted that the material of each lens is not limited in above-mentioned preference.
As preferred embodiment, described wide-angle lens is the auxiliary lens of mobile phone, and described wide-angle lens is installed on
Above the photographic head of mobile phone.
The performance parameter of the wide-angle lens that a kind of embodiment provides also is tested by this utility model, wherein f1-2=-
708.6mm, f3-6=530.8mm, f1-3=-14.3mm, f3-4=33.2mm, f4-6=21mm, f5-6=-42.4mm, f=
864mm.Test result is as shown in Figure 2, Figure 3 and Figure 4.
As seen from Figure 2, wide-angle lens is (corresponding with the sagitta of arc to meridian produced by light (corresponding to T in Fig. 2) direction
S in Fig. 2) the direction curvature of field is between-0.035 to 0.035.As seen from Figure 3, the maximum distortion of wide-angle lens exists
Within 2%.As seen from Figure 4, wide-angle lens is that lateral aberration value produced by different wave length light is at several microns to wavelength
Between.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or
Change among the protection domain still in this utility model creation.
Claims (10)
1. a wide-angle lens, it is characterised in that the first lens (1) of including sequentially being configured by thing side to image side along optical axis,
Two lens (2), the 3rd lens (3), the 4th lens (4), the 5th lens (5) and the 6th lens (6)；First lens (1) are for having
The meniscus lens of negative power, and its concave surface is towards image side；Described second lens (2) are for have the lenticular thin of positive light coke
Lens；Described 3rd lens (3) have the meniscus lens of negative power, and its concave surface is towards image side；Described 4th lens (4)
For having the lenticular thick lens of positive light coke；Described 5th lens (5) are the double concave thin lens with negative power；Described
6th lens (6) are the falcate thin lens with positive light coke, and its concave surface is towards image side.
Wide-angle lens the most according to claim 1, it is characterised in that described wide-angle lens satisfies the following conditional expression:
-0.95 ＜ f1-2/ f ＜-0.7；
0.48 ＜ f3-6/ f ＜ 0.73；
-1.60 ＜ f1-2/f3-6＜-1.0；
-0.8 ＜ f1-3/f4-6＜-0.55；
-0.9 ＜ f3-4/f5-6＜-0.65；
Wherein, f is the effective focal length of described wide-angle lens, f1-2It is described first lens (1) and the group of described second lens (2)
Complex focus, f3-6It is described 3rd lens (3), described 4th lens (4), described 5th lens (5) and described 6th lens (6)
Combined focal length, f1-3It is described first lens (1), described second lens (2) and the combined focal length of described 3rd lens (3),
f3-4It is described 3rd lens (3) and the combined focal length of described 4th lens (4), f5-6It is described 5th lens (5) and described
The combined focal length of six lens (6), f4-6Described 4th lens (4), between described 5th lens (5) and described 6th lens (6)
Combined focal length.
Wide-angle lens the most according to claim 2, it is characterised in that described wide-angle lens satisfies the following conditional expression:
-0.85 ＜ f1-2/ f ＜-0.80；
0.58 ＜ f3-6/ f ＜ 0.63；
-1.50 ＜ f1-2/f3-6＜-1.10；
-0.70 ＜ f1-3/f4-6＜-0.65；
-0.80 ＜ f3-4/f5-6＜-0.75.
Wide-angle lens the most according to any one of claim 1 to 3, it is characterised in that described wide-angle lens is the most satisfied:
TTL ＜ 24.0mm, wherein TTL be along optical axis direction the thing side of the first lens (1) to the distance between imaging surface.
Wide-angle lens the most according to any one of claim 1 to 3, it is characterised in that described first lens (1) are to described
The external diameter of the 6th lens (6) reduces successively.
Wide-angle lens the most according to claim 5, it is characterised in that the external diameter of described first lens (1) is less than 25mm, institute
State the overall length of wide-angle lens less than 24mm.
Wide-angle lens the most according to claim 5, it is characterised in that 1.68 ＜ Nd ＜ 1.86,40 ＜ Vd ＜ 63, Nd is institute
Stating the d optical index of the first lens (1), Vd is the Abbe number of described first lens (1).
Wide-angle lens the most according to any one of claim 1 to 3, it is characterised in that described first lens (1), described
Second lens (2), described 3rd lens (3), described 5th lens (5) and described 6th lens (6) they are thin lens, the described 4th
Lens (4) are thick lens.
Wide-angle lens the most according to any one of claim 1 to 3, it is characterised in that described first lens (1) are to described
6th lens (6) are spherical lens.
Wide-angle lens the most according to any one of claim 1 to 3, it is characterised in that described wide-angle lens is mobile phone
Auxiliary lens, and described wide-angle lens is installed on above the photographic head of mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620340969.8U CN205750081U (en) | 2016-04-20 | 2016-04-20 | Wide-angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620340969.8U CN205750081U (en) | 2016-04-20 | 2016-04-20 | Wide-angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205750081U true CN205750081U (en) | 2016-11-30 |
Family
ID=57371544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620340969.8U Withdrawn - After Issue CN205750081U (en) | 2016-04-20 | 2016-04-20 | Wide-angle lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205750081U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739068A (en) * | 2016-04-20 | 2016-07-06 | 中山市思锐摄影器材工业有限公司 | Wide-angle lens |
| CN107121757A (en) * | 2017-06-28 | 2017-09-01 | 广东思锐光学股份有限公司 | A kind of bugeye lens |
| CN108663774A (en) * | 2017-03-31 | 2018-10-16 | 宁波舜宇车载光学技术有限公司 | optical lens and imaging device |
-
2016
- 2016-04-20 CN CN201620340969.8U patent/CN205750081U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739068A (en) * | 2016-04-20 | 2016-07-06 | 中山市思锐摄影器材工业有限公司 | Wide-angle lens |
| CN108663774A (en) * | 2017-03-31 | 2018-10-16 | 宁波舜宇车载光学技术有限公司 | optical lens and imaging device |
| CN108663774B (en) * | 2017-03-31 | 2020-10-27 | 宁波舜宇车载光学技术有限公司 | Optical lens and imaging apparatus |
| CN107121757A (en) * | 2017-06-28 | 2017-09-01 | 广东思锐光学股份有限公司 | A kind of bugeye lens |
| CN107121757B (en) * | 2017-06-28 | 2023-03-21 | 广东思锐光学股份有限公司 | Ultra-wide-angle lens |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161130 Effective date of abandoning: 20180918 |