CN205485028U - Wide -angle lens - Google Patents
Wide -angle lens Download PDFInfo
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- CN205485028U CN205485028U CN201620227821.3U CN201620227821U CN205485028U CN 205485028 U CN205485028 U CN 205485028U CN 201620227821 U CN201620227821 U CN 201620227821U CN 205485028 U CN205485028 U CN 205485028U
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- angle lens
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Abstract
The utility model discloses a wide -angle lens, it is included by thing side to picture side in proper order: the first lens that have negative optical power, the second lens that have the focal power, the third lens that have positive refractive power, negative optical power's fourth lens have, the thing side of fourth lens and fourth lens be the aspheric surface like the side, have positive refractive power's the 5th lens, the thing side of the 5th lens is located to the concave surface at the paraxial, have negative optical power's VI lenses, VI lenses's thing side and VI lenses are the aspheric surface like the side. Wide -angle lens satisfies: 0.6mm 1 <= tan (HFOV) TTL< 1.0mm 1 CT5CT6 >= 2.2, TTL is the epaxial distance of thing side to the imaging surface of first lens, HFOV is wide -angle lens's maximum field of view angle half the, CT5 is the central thickness of the 5th lens, and CT6 is VI lenses's central thickness. Above -mentioned wide -angle lens has high pixel and super wide angle's characteristics to can realize the miniaturization, be convenient for use on portable electronic products, satisfy the consumer demand.
Description
Technical field
This utility model relates to field of photography, more specifically, relates to a kind of wide-angle lens.
Background technology
Along with the development of science and technology, portable type electronic product progressively rises, and particularly has the portable electronic of camera function
Product obtains people more to be favored.The photo-sensitive cell of general optical system is nothing more than being photosensitive coupling element (CCD) or complementation
Property matal-oxide semiconductor element (CMOS) two kinds.Along with progressing greatly of manufacture of semiconductor technology, the Pixel Dimensions contracting of photo-sensitive cell
Little, optical system trends towards higher pixel and more high imaging quality.
In order to meet this trend, for being mounted in the camera lens on the camera heads such as mobile phone, digital camera, automobile, supervision
Head also further requirement high pixel, miniaturization and wide angle.In order to realize ultra-wide angle, lens number is prone to increase, and is unfavorable for
The miniaturization of camera lens and lightweight；The each aberration of reduction is limited simultaneously, be unfavorable for improving image quality.
Utility model content
This utility model embodiment is intended at least to solve one of technical problem present in prior art.To this end, this practicality
New embodiment needs to provide a kind of wide-angle lens.
A kind of wide-angle lens, is included to image side successively by thing side:
There are the first lens of negative power；
There are the second lens of focal power；
There are the 3rd lens of positive light coke；
There is the 4th lens of negative power, the thing side of the 4th lens and the image side surface of the 4th lens and be aspheric
Face；
Having the 5th lens of positive light coke, the thing side of the 5th lens is concave surface at paraxial place；
There is the 6th lens of negative power, the thing side of the 6th lens and the image side surface of the 6th lens and be aspheric
Face；
This wide-angle lens meets relational expression: 0.6mm-1≤tan(HFOV)/TTL<1.0mm-1；CT5/CT6≥2.2；
Wherein, TTL is that the thing side of these the first lens is to distance on the axle of imaging surface；HFOV is the maximum of this wide-angle lens
The half of the angle of visual field；CT5 is the center thickness of the 5th lens, and CT6 is the center thickness of the 6th lens.
The wide-angle lens meeting above-mentioned configuration has the feature of high pixel and ultra-wide angle, and above-mentioned wide-angle lens is promoting
While the image quality of wide-angle lens and the expansion angle of visual field, it is possible to effectively shorten the length of wide-angle lens, and then be capable of
Miniaturization, it is simple to apply on portable type electronic product, meet consumer demand.
In one embodiment, this wide-angle lens meets following relationship :-2.0 < f1/f <-1.0；V1-V2≥30；
Wherein, f1 is the effective focal length of these the first lens, and f is the effective focal length of this wide-angle lens；V1 is these first lens
Abbe number, V2 is the abbe number of these the second lens.
In one embodiment, this wide-angle lens meets following relationship: 0.4 < SAG12/DT12 < 0.8；
Wherein, SAG12 is the rise of the image side surface of these the first lens, and DT12 is that the maximum of the image side surface of these the first lens has
Effect radius.
In one embodiment, this wide-angle lens meets following relationship: 0.8 < f3/f < 1.5；0.5<f5/f<1.0；
Wherein, f3 is the effective focal length of the 3rd lens, and f5 is the effective focal length of the 5th lens, and f is this wide-angle lens
Effective focal length.
In one embodiment, the image side surface of the 4th lens is concave surface, and this wide-angle lens meets following relationship :-5.0
<f4/f<-1.5；Wherein, f4 is the effective focal length of the 4th lens, and f is the effective focal length of this wide-angle lens.
In one embodiment, this wide-angle lens meets following relationship :-1.5 < f6/f < 0；
Wherein, f6 is the effective focal length of the 6th lens, and f is the effective focal length of this wide-angle lens.
In one embodiment, this wide-angle lens meets following relationship: 25 < V5-V6 < 45；
Wherein, V5 is the abbe number of these the first lens, and V6 is the abbe number of these the second lens.
In one embodiment, this wide-angle lens meets following relationship: 0.6 < | SAG52 |/CT5 < 0.9；
Wherein, SAG52 is the rise of the image side surface of the 5th lens, and CT5 is the center thickness of the 5th lens.
In one embodiment, the image side surface of the 3rd lens is convex surface, and the image side surface of the 5th lens is convex surface.
In one embodiment, the material of the 6th lens is plastics, and the thing side of the 6th lens at paraxial place is
Convex surface, the image side surface of the 6th lens is concave surface and along with being changed into convex surface away from optical axis at paraxial place.
The additional aspect of this utility model embodiment and advantage will part be given in the following description, and part will be from following
Description in become obvious, or recognized by the practice of this utility model embodiment.
Accompanying drawing explanation
Embodiment is retouched by the above-mentioned and/or additional aspect of this utility model embodiment and advantage from combining accompanying drawings below
Will be apparent from easy to understand in stating, wherein:
Fig. 1 is the structural representation of the wide-angle lens of embodiment 1；
Fig. 2 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 1；Fig. 3 is the astigmatism figure of the wide-angle lens of embodiment 1
(mm)；Fig. 4 is the distortion figure (%) of the wide-angle lens of embodiment 1；Fig. 5 is the ratio chromatism, figure of the wide-angle lens of embodiment 1
(um)；
Fig. 6 is the structural representation of the wide-angle lens of embodiment 2；
Fig. 7 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 2；Fig. 8 is the astigmatism figure of the wide-angle lens of embodiment 2
(mm)；Fig. 9 is the distortion figure (%) of the wide-angle lens of embodiment 2；Figure 10 is the ratio chromatism, figure of the wide-angle lens of embodiment 2
(um)；
Figure 11 is the structural representation of the wide-angle lens of embodiment 3；
Figure 12 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 3；Figure 13 is the astigmatism of the wide-angle lens of embodiment 3
Figure (mm)；Figure 14 is the distortion figure (%) of the wide-angle lens of embodiment 3；Figure 15 is the ratio chromatism, of the wide-angle lens of embodiment 3
Figure (um)；
Figure 16 is the structural representation of the wide-angle lens of embodiment 4；
Figure 17 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 4；Figure 18 is the astigmatism of the wide-angle lens of embodiment 4
Figure (mm)；Figure 19 is the distortion figure (%) of the wide-angle lens of embodiment 4；Figure 20 is the ratio chromatism, of the wide-angle lens of embodiment 4
Figure (um)；
Figure 21 is the structural representation of the wide-angle lens of embodiment 5；
Figure 22 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 5；Figure 23 is the astigmatism of the wide-angle lens of embodiment 5
Figure (mm)；Figure 24 is the distortion figure (%) of the wide-angle lens of embodiment 5；Figure 25 is the ratio chromatism, of the wide-angle lens of embodiment 5
Figure (um)；
Figure 26 is the structural representation of the wide-angle lens of embodiment 6；
Figure 27 is chromaticity difference diagram (mm) on the axle of the wide-angle lens of embodiment 6；Figure 28 is the astigmatism of the wide-angle lens of embodiment 6
Figure (mm)；Figure 29 is the distortion figure (%) of the wide-angle lens of embodiment 6；Figure 30 is the ratio chromatism, of the wide-angle lens of embodiment 6
Figure (um).
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings, the most ad initio
Represent same or similar element to same or similar label eventually or there is the element of same or like function.Below by ginseng
It is exemplary for examining the embodiment that accompanying drawing describes, and is only used for explaining this utility model, and it is not intended that to of the present utility model
Limit.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define
The feature of " first ", " second " can express or implicitly include one or more described features.At this utility model
Description in, " multiple " are meant that two or more, unless otherwise expressly limited specifically.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fixing connection, it is also possible to be to removably connect, or integrally
Ground connects；Can be to be mechanically connected, it is also possible to be to electrically connect maybe can be in communication with each other；Can be to be joined directly together, it is also possible to pass through
Intermediary is indirectly connected to, and can be connection or the interaction relationship of two elements of two element internals.For this area
Those of ordinary skill for, above-mentioned term concrete meaning in this utility model can be understood as the case may be.
Following disclosure provides many different embodiments or example for realizing different structure of the present utility model.For
Simplification disclosure of the present utility model, hereinafter to the parts of specific examples be set for describing.Certainly, they the most only show
Example, and be not intended to limit this utility model.Additionally, this utility model can in different examples repeat reference numerals
And/or reference letter, this repetition is for purposes of simplicity and clarity, itself do not indicate discussed various embodiment and/
Or the relation between setting.Additionally, the various specific technique that provides of this utility model and the example of material, but this area
Those of ordinary skill is it can be appreciated that the application of other techniques and/or the use of other materials.
Refer to Fig. 1, the wide-angle lens of this utility model preferred embodiment, thing side include successively to image side:
There is the first lens E1 of negative power；
There is the second lens E2 of focal power；
There is the 3rd lens E3 of positive light coke；
There is the 4th lens E4 of negative power, the image side surface of the thing side S7 and the 4th lens E4 of the 4th lens E4
S8 is aspheric surface；
Having the 5th lens E5 of positive light coke, the thing side S9 of the 5th lens E5 is concave surface at paraxial place；
There is the 6th lens E6 of negative power, the image side of the thing side S11 and the 6th lens E6 of the 6th lens E6
Face S12 is aspheric surface；
This wide-angle lens meets relational expression: 0.6mm-1≤tan(HFOV)/TTL<1.0mm-1；CT5/CT6≥2.2；
Wherein, TTL be these first lens E1 thing side S1 to imaging surface S15 axle on distance；HFOV is this wide-angle lens
The half at the maximum field of view angle of head；CT5 is the center thickness of the 5th lens E5, and CT6 is the center thickness of the 6th lens E6.
The wide-angle lens meeting above-mentioned configuration has the feature of high pixel and ultra-wide angle, and above-mentioned wide-angle lens is promoting
While the image quality of wide-angle lens and the expansion angle of visual field, it is possible to effectively shorten the length of wide-angle lens, and then be capable of
Miniaturization, it is simple to apply on portable type electronic product, meet consumer demand.
It is preferred that this wide-angle lens meets following relationship :-2.0 < f1/f <-1.0；V1-V2≥30；
Wherein, f1 is the effective focal length of these first lens E1, and f is the effective focal length of this wide-angle lens；V1 is that this is first saturating
The abbe number of mirror E1, V2 is the abbe number of these second lens E2.
The wide-angle lens meeting above formula requirement is conducive to expanding the angle of visual field of wide-angle lens, and improves the imaging of wide-angle lens
Definition.
It is preferred that this wide-angle lens meets following relationship: 0.4 < SAG12/DT12 < 0.8；
Wherein, SAG12 is the rise of the image side surface S2 of these first lens E1, and DT12 is the image side surface S2 of these first lens E1
Maximum effective radius.
The wide-angle lens meeting above formula requirement is conducive to promoting the edge brightness of lens, reduces the probability that dark angle generates.
It is preferred that this wide-angle lens meets following relationship: 0.8 < f3/f < 1.5；0.5<f5/f<1.0；
Wherein, f3 is the effective focal length of the 3rd lens E3, and f5 is the effective focal length of the 5th lens E5, and f is this Radix Rumicis
The effective focal length of camera lens.
The wide-angle lens meeting above formula requirement is conducive to reducing system aberration, is particularly effective the curvature of field revising wide-angle lens,
And then improve the image quality of wide-angle lens.
It is preferred that the image side surface S8 of the 4th lens E4 is concave surface, this wide-angle lens meets following relationship :-5.0 < f4/
f<-1.5；Wherein, f4 is the effective focal length of the 4th lens E4, and f is the effective focal length of this wide-angle lens.
The wide-angle lens meeting above formula requirement is conducive to shortening the length of wide-angle lens, it is achieved miniaturization, and then can be true
Protect wide-angle lens to be more suitable on portable type electronic product.
It is preferred that this wide-angle lens meets following relationship :-1.5 < f6/f < 0；
Wherein, f6 is the effective focal length of the 6th lens E6, and f is the effective focal length of this wide-angle lens.
The wide-angle lens meeting above formula requirement expands the angle of visual field of wide-angle lens further, and can be the most correcting distorted,
Thus improve the image quality of wide-angle lens.
It is preferred that this wide-angle lens meets following relationship: 25 < V5-V6 < 45；
Wherein, V5 is the abbe number of these first lens E1, and V6 is the abbe number of these second lens E2.
The wide-angle lens meeting above formula requirement is effectively revised the aberration of wide-angle lens and improves the imaging clearly of wide-angle lens
Degree, thus promote the image quality of wide-angle lens.
It is preferred that this wide-angle lens meets following relationship: 0.6 < | SAG52 |/CT5 < 0.9；
Wherein, SAG52 is the rise of the image side surface S10 of the 5th lens E5, and CT5 is that the center of the 5th lens E5 is thick
Degree.
The wide-angle lens meeting above formula requirement can effectively reduce the volume of wide-angle lens, and can reduce the tolerance of wide-angle lens
Sensitivity, and make lens be easily assembled to, and then reduce the cost of wide-angle lens.
It is preferred that the image side surface S6 of the 3rd lens E3 is convex surface, the image side surface S10 of the 5th lens E5 is convex surface.
The wide-angle lens meeting above-mentioned requirements is conducive to promoting the image quality of wide-angle lens.
It is preferred that the material of the 6th lens E6 is plastics, and the thing side S11 of the 6th lens E6 is convex at paraxial place
Face, the image side surface S12 of the 6th lens E6 is concave surface and along with being changed into convex surface away from optical axis at paraxial place.
The wide-angle lens meeting above-mentioned requirements is conducive to reducing the incident angle of chief ray on imaging surface S15, improves photosensitive
The matching of element.Meanwhile, the lens of plastics are more suitable for the wide-angle lens of miniaturization and can improve the imaging of wide-angle lens
Quality.
During imaging, light through after six-element lens after there is the optical filter E7 of thing side surface S13 and surface, image side S14
Image in imaging surface S15.
In certain embodiments, the first lens E1, the second lens E2, the 3rd lens E3, the 4th lens E4, the 5th lens E5
And the 6th lens E6 be all non-spherical lens.
Aspheric shape is determined by below equation:
Wherein, h is that in aspheric surface, arbitrary point is vertex curvature to the height of optical axis, c, and k is conic constants, and Ai is aspheric surface
The correction factor on the i-th-th rank.
Embodiment 1
Incorporated by reference to Fig. 1～Fig. 5, in embodiment 1, wide-angle lens meets the condition of table 1 below-3:
Table 1
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | -58.5742 | 0.2500 | 1.544/56.11 | -53.3621 |
| S2 | Aspheric surface | 1.1122 | 0.5360 | -- | -0.1579 |
| S3 | Aspheric surface | 1.5812 | 0.2903 | 1.640/23.53 | -5.7910 |
| S4 | Aspheric surface | 2.4984 | 0.1352 | -- | -91.0188 |
| STO | Sphere | Infinite | 0.0262 | -- | -- |
| S5 | Aspheric surface | 2.8131 | 0.4877 | 1.544/56.11 | -17.1996 |
| S6 | Aspheric surface | -0.9661 | 0.0300 | -- | 1.3915 |
| S7 | Aspheric surface | 16.5653 | 0.2400 | 1.640/23.53 | -91.2833 |
| S8 | Aspheric surface | 1.5930 | 0.1884 | -- | -10.1512 |
| S9 | Aspheric surface | -36.0900 | 0.8948 | 1.544/56.11 | -79.1939 |
| S10 | Aspheric surface | -0.6896 | 0.0716 | -- | -1.4345 |
| S11 | Aspheric surface | 1.8268 | 0.3218 | 1.640/23.53 | -77.4651 |
| S12 | Aspheric surface | 0.6201 | 0.7855 | -- | -6.2845 |
| S13 | Sphere | Infinite | 0.1100 | 1.517/64.17 | -- |
| S14 | Sphere | Infinite | 0.1125 | -- | -- |
| S15 | Sphere | Infinite | -- | -- | -- |
Table 2
Table 3
| f1(mm) | -1.99 | f(mm) | 1.46 |
| f2(mm) | 5.93 | TTL(mm) | 4.48 |
| f3(mm) | 1.38 | HFOV(deg) | 72.66 |
| f4(mm) | -2.75 | ||
| f5(mm) | 1.28 | ||
| f6(mm) | -1.62 |
Embodiment 2
Incorporated by reference to Fig. 6～Figure 10, in example 2, wide-angle lens meets the condition of table 4 below-6:
Table 4
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | 4.1053 | 0.2500 | 1.544/56.11 | -53.3621 |
| S2 | Aspheric surface | 0.9279 | 0.6562 | -- | -0.4428 |
| S3 | Aspheric surface | 1.6419 | 0.2831 | 1.640/23.53 | -7.4925 |
| S4 | Aspheric surface | 2.6433 | 0.1218 | -- | -91.0188 |
| STO | Sphere | Infinite | -0.0064 | -- | -- |
| S5 | Aspheric surface | 3.0419 | 0.4995 | 1.544/56.11 | -17.2620 |
| S6 | Aspheric surface | -0.8921 | 0.0300 | -- | 1.0773 |
| S7 | Aspheric surface | 9.4686 | 0.2400 | 1.640/23.53 | -91.2833 |
| S8 | Aspheric surface | 1.5590 | 0.1981 | -- | -9.8252 |
| S9 | Aspheric surface | -2.2019 | 0.8238 | 1.544/56.11 | -78.4579 |
| S10 | Aspheric surface | -0.5525 | 0.0384 | -- | -1.4443 |
| S11 | Aspheric surface | 1.8453 | 0.3207 | 1.640/23.53 | -77.6088 |
| S12 | Aspheric surface | 0.5736 | 0.7940 | -- | -6.6629 |
| S13 | Sphere | Infinite | 0.1100 | 1.517/64.17 | -- |
| S14 | Sphere | Infinite | 0.1210 | -- | -- |
| S15 | Sphere | Infinite | -- | -- | -- |
Table 5
Table 6
| f1(mm) | -2.26 | f(mm) | 1.46 |
| f2(mm) | 6.04 | TTL(mm) | 4.48 |
| f3(mm) | 1.32 | HFOV(deg) | 73.65 |
| f4(mm) | -2.92 | ||
| f5(mm) | 1.15 | ||
| f6(mm) | -1.43 |
Embodiment 3
Incorporated by reference to Figure 11～Figure 15, in embodiment 3, wide-angle lens meets the condition of table 7 below-9:
Table 7
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | -33.1213 | 0.2500 | 1.544/56.11 | -53.3621 |
| S2 | Aspheric surface | 1.2436 | 0.5226 | -- | -0.1986 |
| S3 | Aspheric surface | 1.8338 | 0.2512 | 1.640/23.53 | -15.0683 |
| S4 | Aspheric surface | 1.7181 | 0.1159 | -- | -91.0188 |
| STO | Sphere | Infinite | 0.0043 | -- | -- |
| S5 | Aspheric surface | 2.0106 | 0.5338 | 1.544/56.11 | -17.1996 |
| S6 | Aspheric surface | -0.9664 | 0.0659 | -- | 1.3892 |
| S7 | Aspheric surface | 7.2879 | 0.2400 | 1.640/23.53 | -91.2833 |
| S8 | Aspheric surface | 1.5295 | 0.2069 | -- | -11.4606 |
| S9 | Aspheric surface | -91.8418 | 0.8922 | 1.544/56.11 | -79.1939 |
| S10 | Aspheric surface | -0.6529 | 0.0300 | -- | -1.4594 |
| S11 | Aspheric surface | 1.7079 | 0.3606 | 1.640/23.53 | -76.9769 |
| S12 | Aspheric surface | 0.5584 | 0.7852 | -- | -5.6773 |
| S13 | Sphere | Infinite | 0.1100 | 1.517/64.17 | -- |
| S14 | Sphere | Infinite | 0.1122 | -- | -- |
| S15 | Sphere | Infinite | -- | -- | -- |
Table 8
Table 9
| f1(mm) | -2.19 | f(mm) | 1.46 |
| f2(mm) | -285.99 | TTL(mm) | 4.48 |
| f3(mm) | 1.28 | HFOV(deg) | 74.76 |
| f4(mm) | -3.05 | ||
| f5(mm) | 1.20 | ||
| f6(mm) | -1.46 |
Embodiment 4
Incorporated by reference to Figure 16～Figure 20, in example 4, wide-angle lens meets the condition of table 10 below-12:
Table 10
| Face number | Surface type | Radius of curvature | Thickness | Material | Circular cone coefficient |
| OBJ | Sphere | Infinite | Infinite | -- | -- |
| S1 | Aspheric surface | -5.0378 | 0.2431 | 1.535/55.78 | 7.7286 |
| S2 | Aspheric surface | 1.8992 | 0.4072 | -- | -13.3382 |
| S3 | Aspheric surface | -51.7398 | 0.2543 | 1.640/23.53 | 50.0000 |
| S4 | Aspheric surface | -15.8881 | 0.0400 | -- | -39.4498 |
| STO | Sphere | Infinite | -0.0063 | -- | -- |
| S5 | Aspheric surface | 1.9888 | 0.6179 | 1.535/55.78 | -3.2979 |
| S6 | Aspheric surface | -1.5234 | 0.0806 | -- | 4.4980 |
| S7 | Aspheric surface | 3.9081 | 0.2400 | 1.640/23.53 | -15.7292 |
| S8 | Aspheric surface | 1.9299 | 0.1207 | -- | -9.6032 |
| S9 | Aspheric surface | -6.6823 | 1.0855 | 1.535/55.78 | 37.9409 |
| S10 | Aspheric surface | -0.5170 | 0.0300 | -- | -2.5172 |
| S11 | Aspheric surface | 1.7956 | 0.3400 | 1.640/23.53 | -99.9000 |
| S12 | Aspheric surface | 0.4816 | 0.4677 | -- | -5.4754 |
| S13 | Sphere | Infinite | 0.1100 | 1.517/64.17 | -- |
| S14 | Sphere | Infinite | 0.4435 | -- | -- |
| S15 | Sphere | Infinite | -- | -- | -- |
Table 11
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 9.1127E-01 | -1.6534E+00 | 2.5832E+00 | -2.7975E+00 | 1.8940E+00 | -7.5238E-01 | 1.3657E-01 |
| S2 | 1.4684E+00 | 1.5132E+00 | -2.8927E+01 | 1.8315E+02 | -5.9069E+02 | 1.0396E+03 | -7.9070E+02 |
| S3 | 5.2003E-02 | -3.6778E-01 | 6.2507E-01 | -8.9326E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 4.0531E-02 | -8.5498E-01 | 3.1472E+00 | -3.8698E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 8.2875E-02 | -7.2692E-01 | -2.1577E+00 | 2.3234E+01 | -8.4548E+01 | 0.0000E+00 | 0.0000E+00 |
| S6 | -1.1132E+00 | 3.0060E+00 | -4.2222E+00 | -1.1856E+00 | 4.8633E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -1.6130E+00 | 2.0844E+00 | -3.7995E+00 | 1.1284E+01 | -3.9589E+01 | 4.4247E+01 | -9.9047E+00 |
| S8 | -3.4622E-01 | 1.2922E-01 | 1.6307E+00 | -4.5312E+00 | 5.6221E+00 | -3.4372E+00 | 8.1795E-01 |
| S9 | 4.3106E-02 | 6.2171E-01 | -2.7787E+00 | 5.7723E+00 | -6.4126E+00 | 3.7869E+00 | -9.2791E-01 |
| S10 | 1.8070E-01 | -1.2033E+00 | 2.5314E+00 | -3.4910E+00 | 3.0481E+00 | -1.5806E+00 | 3.8419E-01 |
| S11 | 2.9707E-01 | -1.0327E+00 | 1.4999E+00 | -1.5224E+00 | 9.4572E-01 | -3.0993E-01 | 4.0890E-02 |
| S12 | 2.8310E-02 | -1.7142E-01 | 1.5325E-01 | -7.7921E-02 | 2.3441E-02 | -3.8342E-03 | 2.5883E-04 |
Table 12
| f1(mm) | -2.54 | f(mm) | 1.48 |
| f2(mm) | 35.47 | TTL(mm) | 4.47 |
| f3(mm) | 1.71 | HFOV(deg) | 70.86 |
| f4(mm) | -6.21 | ||
| f5(mm) | 0.98 | ||
| f6(mm) | -1.14 |
Embodiment 5
Incorporated by reference to Figure 21～Figure 25, in embodiment 5, wide-angle lens meets the condition of table 13 below-15:
Table 13
Table 14
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 6.9225E-01 | -1.1947E+00 | 1.7017E+00 | -1.6985E+00 | 1.0855E+00 | -3.9545E-01 | 6.3151E-02 |
| S2 | 2.2485E+00 | -7.2424E+00 | 2.7326E+01 | -7.5286E+01 | 1.4419E+02 | -1.6295E+02 | 7.6319E+01 |
| S3 | -1.8243E-01 | -1.6192E-01 | -1.2487E+00 | 2.4266E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | 1.7510E-01 | -1.0202E+00 | 2.3761E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 3.5915E-01 | -5.4712E-01 | -7.0101E+00 | 4.3197E+01 | -1.2346E+02 | 0.0000E+00 | 0.0000E+00 |
| S6 | -9.1170E-01 | 6.1036E+00 | -2.3388E+01 | 4.4912E+01 | -3.5056E+01 | 0.0000E+00 | 0.0000E+00 |
| S7 | -1.7272E+00 | 6.6748E+00 | -3.3400E+01 | 1.2005E+02 | -3.2110E+02 | 5.0198E+02 | -3.3959E+02 |
| S8 | -4.4630E-01 | 9.3890E-01 | -1.3354E+00 | 7.7203E-01 | 3.8837E-01 | -5.5583E-01 | 3.7295E-02 |
| S9 | 1.6901E-01 | -3.2793E-01 | 6.2394E-01 | -1.3220E-01 | -1.4049E+00 | 2.0692E+00 | -9.4085E-01 |
| S10 | 2.7020E-01 | -1.0638E+00 | 1.3386E+00 | -7.4898E-01 | -1.6886E-01 | 3.8586E-01 | -1.0200E-01 |
| S11 | 1.0793E-01 | -6.4566E-01 | 8.1566E-01 | -7.0404E-01 | 3.7423E-01 | -1.0490E-01 | 1.1912E-02 |
| S12 | -7.4430E-02 | -4.4354E-02 | 5.7895E-02 | -3.1755E-02 | 9.1641E-03 | -1.3352E-03 | 7.4010E-05 |
Table 15
| f1(mm) | -2.34 | f(mm) | 1.47 |
| f2(mm) | 6.77 | TTL(mm) | 4.47 |
| f3(mm) | 1.92 | HFOV(deg) | 70.05 |
| f4(mm) | -4.87 | ||
| f5(mm) | 1.10 | ||
| f6(mm) | -1.40 |
Embodiment 6
Incorporated by reference to Figure 26～Figure 30, in embodiment 6, wide-angle lens meets the condition of table 16 below-18:
Table 16
Table 17
| Face number | A4 | A6 | A8 | A10 | A12 | A14 | A16 |
| S1 | 7.2834E-01 | -1.1758E+00 | 1.6033E+00 | -1.5042E+00 | 8.3886E-01 | -2.4992E-01 | 3.0502E-02 |
| S2 | 1.2552E+00 | 3.9909E-02 | -8.5766E+00 | 4.8635E+01 | -1.2032E+02 | 1.6013E+02 | -1.0010E+02 |
| S3 | -3.7035E-02 | -1.9708E-01 | 1.3962E-02 | 5.8841E-01 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S4 | -2.3525E-03 | -5.0589E-01 | 1.7127E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 | 0.0000E+00 |
| S5 | 1.3195E-01 | -7.9747E-01 | 2.4924E+00 | -7.5405E+00 | 4.1788E+00 | 0.0000E+00 | 0.0000E+00 |
| S6 | -7.5635E-01 | 2.5196E+00 | -6.8255E+00 | 1.0901E+01 | -7.7038E+00 | 0.0000E+00 | 0.0000E+00 |
| S7 | -1.2388E+00 | 2.0997E+00 | -6.4182E+00 | 1.6010E+01 | -3.6254E+01 | 4.9880E+01 | -2.8515E+01 |
| S8 | -2.9204E-01 | 2.2173E-01 | 6.5147E-01 | -2.2205E+00 | 2.9991E+00 | -1.9381E+00 | 4.7472E-01 |
| S9 | 8.7130E-02 | -9.9576E-02 | 2.3255E-01 | -1.0803E-01 | -3.0756E-01 | 4.5964E-01 | -1.8430E-01 |
| S10 | 8.4236E-02 | -8.1152E-01 | 1.4743E+00 | -1.6711E+00 | 1.1681E+00 | -4.8232E-01 | 1.0446E-01 |
| S11 | -3.1929E-03 | -5.2021E-01 | 8.1554E-01 | -8.0151E-01 | 4.7709E-01 | -1.5287E-01 | 2.0270E-02 |
| S12 | -1.5007E-01 | 6.2420E-02 | -1.8763E-02 | 1.6955E-03 | 7.2408E-04 | -2.4475E-04 | 2.1688E-05 |
Table 18
| f1(mm) | -2.77 | f(mm) | 1.62 |
| f2(mm) | 14.08 | TTL(mm) | 4.47 |
| f3(mm) | 1.95 | HFOV(deg) | 71.75 |
| f4(mm) | -6.71 | ||
| f5(mm) | 1.12 | ||
| f6(mm) | -1.33 |
In embodiment 1-6, each conditional meets the condition of table below:
| Conditional | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 |
| tan(HFOV)/TTL | 0.76 | 0.71 | 0.82 | 0.64 | 0.62 | 0.68 |
| CT5/CT6 | 2.78 | 2.57 | 2.47 | 3.19 | 3.03 | 3.18 |
| f1/f | -1.36 | -1.55 | -1.50 | -1.72 | -1.59 | -1.71 |
| f3/f | 0.94 | 0.91 | 0.87 | 1.16 | 1.31 | 1.21 |
| f4/f | -1.88 | -2.00 | -2.09 | -4.20 | -3.31 | -4.15 |
| f5/f | 0.87 | 0.79 | 0.82 | 0.66 | 0.75 | 0.69 |
| f6/f | -1.11 | -0.98 | -1.00 | -0.77 | -0.95 | -0.82 |
| V1-V2 | 32.58 | 32.58 | 32.58 | 32.25 | 34.26 | 32.25 |
| V5-V6 | 32.58 | 32.58 | 32.58 | 32.25 | 32.25 | 32.25 |
| SAG12/DT12 | 0.63 | 0.70 | 0.57 | 0.53 | 0.56 | 0.46 |
| |SAG52|/CT5 | 0.72 | 0.78 | 0.73 | 0.72 | 0.72 | 0.74 |
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " concrete example " or " some examples " etc. means to combine described embodiment or example describes specific features,
Structure, material or feature are contained at least one embodiment of the present utility model or example.In this manual, to above-mentioned
The schematic representation of term is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material
Or feature can combine in any one or more embodiments or example in an appropriate manner.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or
Implicitly include at least one this feature.In description of the present utility model, " multiple " are meant that at least two, such as two
Individual, three etc., unless otherwise expressly limited specifically.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (10)
1. a wide-angle lens, it is characterised in that included successively to image side by thing side:
There are the first lens of negative power；
There are the second lens of focal power；
There are the 3rd lens of positive light coke；
There is the 4th lens of negative power, the thing side of the 4th lens and the image side surface of the 4th lens and be aspheric surface；
Having the 5th lens of positive light coke, the thing side of the 5th lens is concave surface at paraxial place；
There is the 6th lens of negative power, the thing side of the 6th lens and the image side surface of the 6th lens and be aspheric surface；
This wide-angle lens meets relational expression: 0.6mm-1≤tan(HFOV)/TTL<1.0mm-1；CT5/CT6≥2.2；
Wherein, TTL is that the thing side of these the first lens is to distance on the axle of imaging surface；HFOV is the maximum field of view of this wide-angle lens
The half at angle；CT5 is the center thickness of the 5th lens, and CT6 is the center thickness of the 6th lens.
2. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
-2.0<f1/f<-1.0；V1-V2≥30；
Wherein, f1 is the effective focal length of these the first lens, and f is the effective focal length of this wide-angle lens；V1 is the color of these the first lens
Dissipating coefficient, V2 is the abbe number of these the second lens.
3. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
0.4<SAG12/DT12<0.8；
Wherein, SAG12 is the rise of the image side surface of these the first lens, and DT12 is maximum effectively the half of the image side surface of these the first lens
Footpath.
4. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
0.8<f3/f<1.5；0.5<f5/f<1.0；
Wherein, f3 is the effective focal length of the 3rd lens, and f5 is the effective focal length of the 5th lens, and f is having of this wide-angle lens
Effect focal length.
5. wide-angle lens as claimed in claim 1, it is characterised in that the image side surface of the 4th lens is concave surface, this wide-angle lens
Head meets following relationship :-5.0 < f4/f <-1.5；
Wherein, f4 is the effective focal length of the 4th lens, and f is the effective focal length of this wide-angle lens.
6. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
-1.5<f6/f<0；
Wherein, f6 is the effective focal length of the 6th lens, and f is the effective focal length of this wide-angle lens.
7. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
25<V5-V6<45；
Wherein, V5 is the abbe number of these the first lens, and V6 is the abbe number of these the second lens.
8. wide-angle lens as claimed in claim 1, it is characterised in that this wide-angle lens meets following relationship:
0.6<|SAG52|/CT5<0.9；
Wherein, SAG52 is the rise of the image side surface of the 5th lens, and CT5 is the center thickness of the 5th lens.
9. wide-angle lens as claimed in claim 1, it is characterised in that the image side surface of the 3rd lens is convex surface, and the 5th is saturating
The image side surface of mirror is convex surface.
10. wide-angle lens as claimed in claim 1, it is characterised in that the material of the 6th lens is plastics, and the 6th is saturating
The thing side of mirror is convex surface at paraxial place, and the image side surface of the 6th lens is concave surface and along with being changed into away from optical axis at paraxial place
Convex surface.
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| CN201620227821.3U CN205485028U (en) | 2016-03-23 | 2016-03-23 | Wide -angle lens |
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| CN201620227821.3U CN205485028U (en) | 2016-03-23 | 2016-03-23 | Wide -angle lens |
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