CN205404940U - Extra wide angle lens - Google Patents
Extra wide angle lens Download PDFInfo
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- CN205404940U CN205404940U CN201620209120.7U CN201620209120U CN205404940U CN 205404940 U CN205404940 U CN 205404940U CN 201620209120 U CN201620209120 U CN 201620209120U CN 205404940 U CN205404940 U CN 205404940U
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Abstract
The utility model discloses an extra wide angle lens, include that wherein the 5th lens are the contact lens from object space to image space first lens, second lens, third lens, fourth lens, the 5th lens, the VI lenses of coaxial setting in proper order, first lens are protruding positive lens to the object space, and second lens, third lens are protruding positive lens to the object space, and fourth lens, the 5th lens are protruding negative lens to the image space. The utility model discloses an extra wide angle lens has field angle and is 170 degrees, and the pixel reaches 1300 more than ten thousand, and the structure is short and small, optical length degree 15.5mm, the outward appearance is graceful, and the aberration is corrected well.
Description
Technical field
This utility model relates to optical image technology field, relates in particular to a kind of bugeye lens.
Background technology
In recent years, the range of application of pick-up lens was more and more extensive, for instance, the industry such as motion DV, mobile phone camera, on-vehicle lens, safe imaging monitoring and electronic entertainment, it is more and more higher that the pixel of camera lens and field of view angle are required by people.But, existing monitoring, the vehicle-mounted such shortcoming of camera lens ubiquity: visual angle is big not, its visual angle is often below 140 degree, and the scope of captured image entirety is too small to fill even several camera lenses can be only achieved the effect of large-range monitoring more；Pixel is low, the cost of its totle drilling cost is higher, and overall dimensions is but very big, use monitoring, vehicle-mounted on seem that volume is relatively greatly, takes up room more, is not suitable for moving camera shooting.
Therefore, it is badly in need of working out a kind of new technical scheme to solve the problems referred to above.
Utility model content
The purpose of this utility model is that and overcomes above-mentioned the deficiencies in the prior art, a kind of bugeye lens is provided, solve the problem that existing optical lens can not accomplish small-sized ultra-wide angle simultaneously, visual angle can reach 170, ultra-wide angle machining eyeglass is easily achieved, with low cost, and disclosure satisfy that the requirement of camera lens high-definition quality.
For achieving the above object, this utility model is to be achieved through the following technical solutions:
A kind of bugeye lens, including the first lens sequentially coaxially arranged from thing side to image space, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, wherein the 5th lens are balsaming lens, first lens are the plus lens being convex to thing side, second lens, the 3rd lens are the plus lens being convex to thing side, and the 4th lens, the 5th lens are the minus lens being convex to image space.
As the improvement to technique scheme, the first lens, the second lens refractive index 1.6≤N≤1.75, dispersion 50≤V≤60.
As the improvement to technique scheme, the refractive index N1=1.744287 of the first lens, dispersion V1=50.770906；The refractive index N2=1.6779 of the second lens, dispersion V2=55.20.
As the improvement to technique scheme, the 3rd lens, the 4th lens refractive index 1.6≤N≤1.85, dispersion 20≤V≤55.
As the improvement to technique scheme, the refractive index N3=1.80 of the 3rd lens, dispersion V3=25.35；The refractive index N4=1.73 of the 4th lens, dispersion V4=51.77.
As the improvement to technique scheme, the 5th lens are formed by the first balsaming lens and the second balsaming lens gluing；Refractive index 1.6≤N≤1.85 of the first balsaming lens, dispersion 25≤V≤55；Refractive index 1.6≤N≤1.95 of the second balsaming lens, dispersion 19≤V≤50.
As the improvement to technique scheme, the refractive index N=1.75 of the first balsaming lens, dispersion V3=52.77；The refractive index N=1.92 of the second balsaming lens, dispersion V3=20.88.
Compared with prior art, provide the benefit that acquired by this utility model:
Bugeye lens of the present utility model, having field of view angle is 170 degree, and pixel reaches more than 13,000,000, and structure is short and small, optics total length 15.5mm；Attractive appearance, aberration correction is good.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, any amendment made, equivalent replacement, improvement etc., should be included within protection domain of the present utility model.
As shown in Figure 1, bugeye lens of the present utility model, including from thing side to first lens the 1, second lens the 2, the 3rd lens the 3, the 4th lens the 4, the 5th lens the 5, the 6th lens 6 that image space is sequentially coaxially arranged, wherein the 5th lens 5 are balsaming lens, first lens 1 are the plus lens being convex to thing side, second lens the 2, the 3rd lens 3 are the plus lens being convex to thing side, and the 4th lens the 4, the 5th lens 5 are the minus lens being convex to image space.
Refractive index 1.6≤N≤1.75 of first lens the 1, second lens 2, dispersion 50≤V≤60.
The refractive index N1=1.744287 of the first lens 1, dispersion V1=50.770906；The refractive index N2=1.6779 of the second lens 2, dispersion V2=55.20.
Refractive index 1.6≤N≤1.85 of the 3rd lens the 3, the 4th lens 4, dispersion 20≤V≤55.
The refractive index N3=1.80 of the 3rd lens 3, dispersion V3=25.35；The refractive index N4=1.73 of the 4th lens 4, dispersion V4=51.77.
5th lens 5 are formed by the first balsaming lens 11 and the second balsaming lens 12 gluing；Refractive index 1.6≤N≤1.85 of the first balsaming lens 11, dispersion 25≤V≤55；Refractive index 1.6≤N≤1.95 of the second balsaming lens 12, dispersion 19≤V≤50.
The refractive index N=1.75 of the first balsaming lens 11, dispersion V3=52.77；The refractive index N=1.92 of the second balsaming lens 12, dispersion V3=20.88.
Bugeye lens of the present utility model, having field of view angle is 170 degree, and pixel reaches more than 13,000,000, and structure is short and small, optics total length 15.5mm；Attractive appearance, aberration correction is good.
Claims (7)
1. a bugeye lens, it is characterized in that: the first lens of including sequentially coaxially arranging from thing side to image space, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, wherein the 5th lens are balsaming lens, first lens are the plus lens being convex to thing side, second lens, the 3rd lens are the plus lens being convex to thing side, and the 4th lens, the 5th lens are the minus lens being convex to image space.
2. bugeye lens according to claim 1, it is characterised in that: the first lens, the second lens refractive index 1.6≤N≤1.75, dispersion 50≤V≤60.
3. bugeye lens according to claim 2, it is characterised in that: the refractive index N1=1.744287 of the first lens, dispersion V1=50.770906；The refractive index N2=1.6779 of the second lens, dispersion V2=55.20.
4. bugeye lens according to claim 1, it is characterised in that: the 3rd lens, the 4th lens refractive index 1.6≤N≤1.85, dispersion 20≤V≤55.
5. bugeye lens according to claim 4, it is characterised in that: the refractive index N3=1.80 of the 3rd lens, dispersion V3=25.35；The refractive index N4=1.73 of the 4th lens, dispersion V4=51.77.
6. bugeye lens according to claim 1, it is characterised in that: the 5th lens are formed by the first balsaming lens and the second balsaming lens gluing；Refractive index 1.6≤N≤1.85 of the first balsaming lens, dispersion 25≤V≤55；Refractive index 1.6≤N≤1.95 of the second balsaming lens, dispersion 19≤V≤50.
7. bugeye lens according to claim 6, it is characterised in that: the refractive index N=1.75 of the first balsaming lens, dispersion V3=52.77；The refractive index N=1.92 of the second balsaming lens, dispersion V3=20.88.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209120.7U CN205404940U (en) | 2016-03-18 | 2016-03-18 | Extra wide angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620209120.7U CN205404940U (en) | 2016-03-18 | 2016-03-18 | Extra wide angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205404940U true CN205404940U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620209120.7U Active CN205404940U (en) | 2016-03-18 | 2016-03-18 | Extra wide angle lens |
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| CN (1) | CN205404940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643589A (en) * | 2017-11-19 | 2018-01-30 | 佛山鑫进科技有限公司 | A kind of ADAS high definitions ultra-wide angle optical system |
-
2016
- 2016-03-18 CN CN201620209120.7U patent/CN205404940U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107643589A (en) * | 2017-11-19 | 2018-01-30 | 佛山鑫进科技有限公司 | A kind of ADAS high definitions ultra-wide angle optical system |
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| GR01 | Patent grant |