CN107861229A - A kind of high definition wide-angle unmanned plane camera lens - Google Patents
A kind of high definition wide-angle unmanned plane camera lens Download PDFInfo
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- CN107861229A CN107861229A CN201711317057.4A CN201711317057A CN107861229A CN 107861229 A CN107861229 A CN 107861229A CN 201711317057 A CN201711317057 A CN 201711317057A CN 107861229 A CN107861229 A CN 107861229A
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- 238000003384 imaging method Methods 0.000 claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 230000005499 meniscus Effects 0.000 claims description 26
- 239000000571 coke Substances 0.000 claims description 20
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000009738 saturating Methods 0.000 claims description 5
- 230000004075 alteration Effects 0.000 description 8
- 230000000007 visual effect Effects 0.000 description 7
- 238000012546 transfer Methods 0.000 description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 3
- 238000012937 correction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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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
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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
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
- G02B13/0045—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface having five or more lenses
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Abstract
The present invention discloses a kind of high definition wide-angle unmanned plane camera lens, and the device includes：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter and imaging device；Wherein, the light sent from object passes sequentially through output light after the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter, and the output light is imaged on an imaging device.By setting the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter and imaging device, realize fine definition, the phenomenon of purple boundary is eliminated simultaneously, improves the quality of the image of acquisition.
Description
Technical field
The present invention relates to unmanned plane field, more particularly to a kind of high definition wide-angle unmanned plane camera lens.
Background technology
Unmanned plane market development is rapid, the also more and more higher, for example resolution ratio will of the requirement to part therein such as camera lens
Ask extremely clear from common 1080P to 5MP high definitions, or 4K, close to 9MP, or even 12MP；Target surface is also big, such as 1/2.3 "；And
Increasingly focus on some details, for example wide spectrum disappears purple boundary.
Traditional visual light imaging camera lens is in design, wavelength generally use F light (486nm), d light (588nm), C light
(656nm), than refetching 1:1:1.The camera lens so designed, the serious purple boundary phenomenon of big visual field occurs in some when in use, than
A straight, brush such as is being shot into the light pole of white compared with distant location, it is found that light pole is with purple boundary.
In order to solve the problems, such as purple boundary, enterprise development camera lens introduces plastic aspheric lens, weight saving, structure composition
Become simple, overall dimensions are small, but its temperature characterisitic is bad, can not meet to keep high within the temperature range of -20 DEG C~+80 DEG C
Definition.
The content of the invention
It is an object of the invention to provide the high definition that one kind in the case where ensureing fine definition, can eliminate the purple boundary of image
Wide-angle unmanned plane camera lens.
To achieve the above object, the invention provides following scheme：
A kind of high definition wide-angle unmanned plane camera lens, the unmanned plane camera lens are taken pictures to object, obtain the image of object, the nothing
Man-machine camera lens specifically includes：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm, the 6th lens,
7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter and imaging device；
Wherein, the light sent from object pass sequentially through first lens, the second lens, the 3rd lens, the 4th lens,
Output light after 5th lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter,
The output light is imaged on an imaging device；
First lens are the biconvex lens with positive light coke；
Second lens are the meniscus shaped lens with positive light coke, and the plane of incidence of second lens is the bent moon
The convex surface of shape lens, the exit facet of second lens are the concave surface of the meniscus shaped lens；
3rd lens are the meniscus shaped lens with negative power, and the plane of incidence of the 3rd lens is the bent moon
The convex surface of shape lens, the exit facet of the 3rd lens are the concave surface of the meniscus shaped lens；
4th lens are the biconvex lens with positive light coke；
5th lens are the biconcave lens with negative power；
The plane of incidence of the exit facet and the 5th lens of 4th lens fits together；
6th lens are the biconvex lens with positive light coke；
7th lens are the biconvex lens with positive light coke；
8th lens are the meniscus lens with negative power, and the plane of incidence of the 8th lens is the falcate
The convex surface of lens, the exit facet of the 8th lens are the concave surface of the meniscus shaped lens；
9th lens are the biconvex lens with positive light coke；
Tenth lens are the meniscus lens with negative power, and the plane of incidence of the tenth lens is the falcate
The concave surface of lens, the exit facet of the tenth lens are the convex surface of the meniscus shaped lens；
The plane of incidence of the exit facet and the tenth lens of 9th lens fits together.
Optionally, the unmanned plane camera lens also includes：Lens barrel, spacer ring, end cap, the lens barrel, the spacer ring and the end
Cover for encapsulating first lens, second lens, the 3rd lens, the 4th lens, the 5th lens, institute
State diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, described
Optical filter.
Optionally, the imaging device is cmos image sensor or ccd image sensor.
Optionally, refractive index nd1 >=1.8 of first lens, Abbe number Vd1 >=40 of first lens；
Refractive index nd2 >=1.9 of second lens, Abbe number Vd2≤30 of second lens；
Refractive index nd3≤1.7 of 3rd lens, Abbe number Vd3 >=40 of the 3rd lens；
Refractive index nd4≤1.7 of 4th lens, Abbe number Vd4 >=40 of the 4th lens；
Refractive index nd5 >=1.8 of 5th lens, Abbe number Vd5≤25 of the 5th lens；
And difference nd5-nd4 >=0.15 of the refractive index of the 5th lens and the refractive index of the 4th lens, it is described
Difference Vd4-Vd5 >=25 of the Abbe number of 4th lens and the Abbe number of the 5th lens；
Refractive index nd6 >=1.9 of 6th lens, Abbe number Vd6≤20 of the 6th lens；
Refractive index nd7≤1.7 of 7th lens, Abbe number Vd7 >=40 of the 7th lens；
Refractive index nd9≤1.65 of 9th lens, Abbe number Vd9 >=50 of the 9th lens；
Refractive index nd10 >=1.9 of tenth lens, Abbe number Vd10≤36 of the tenth lens；
And difference nd10-nd9 >=0.25 of the refractive index of the tenth lens and the refractive index of the 9th lens, it is described
Difference Vd9-Vd10 >=30 of the Abbe number of 9th lens and the Abbe number of the tenth lens.
Optionally, group lens before first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens composition
Group, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens organize lens group after forming；
The focal length of group lens group is f before describedBefore, the focal length that lens group is organized after described is fAfterwards；
The focal length f of group lens group before describedBeforeWith the focal length f of the rear group lens groupAfterwardsRatio be fBefore/fAfterwards；
The ratio fBefore/fAfterwardsScope be -2.0≤fBefore/fAfterwards≤-1.0。
Optionally, the optical filter can pass through the light of 436nm to 656nm wave bands.
According to specific embodiment provided by the invention, the invention discloses following technique effect：The invention discloses one kind
High definition wide-angle unmanned plane camera lens, the device include the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, light
Door screen, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter and imaging device, send from object
Light is successively by the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm, the 6th lens, the 7th saturating
Output light after mirror, the 8th lens, the 9th lens, the tenth lens, optical filter, and be imaged on an imaging device, realize 12MP
High-definition image, while also eliminate the purple boundary of 12MP high-definition images.
High definition wide-angle unmanned plane camera lens is also equipped with that big target surface, large aperture, wide-angle, low distortion, the purple boundary that disappears, veiling glare be few, structure
The advantages of compact, the angle of visual field are more than 55 degree, distortion≤2.5%.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described.It should be evident that drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the index path of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 2 is the structure sectional view of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 3 is the point range figure of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 4 is the modulation transfer function curve map of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 5 is the curvature of field and distortion figure of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 6 is the relative illumination curve map of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 7 is the axial chromatic aberration figure of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 8 is the chromatic longitudiinal aberration figure of high definition wide-angle unmanned plane camera lens provided by the invention；
Fig. 9 is the defocus modulation transfer function curve map of high definition wide-angle unmanned plane camera lens provided by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.Obviously, described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It is an object of the invention to provide the high definition that one kind in the case where ensureing fine definition, can eliminate the purple boundary of image
Wide-angle unmanned plane camera lens.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
The knot of high definition wide-angle unmanned plane camera lens shown in the index path and Fig. 2 of high definition wide-angle unmanned plane camera lens as shown in Figure 1
Structure sectional view.The unmanned plane camera lens is taken pictures to object, obtains the image of object, and the unmanned plane camera lens specifically includes：First
Lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, diaphragm 13, the 6th lens 6, the 7th lens the 7, the 8th
Lens 8, the 9th lens 9, the tenth lens 10, optical filter 11 and imaging device.
Wherein, it is saturating that the light sent from object passes through first lens 1, the second lens 2, the 3rd lens the 3, the 4th successively
Mirror 4, the 5th lens 5, diaphragm 13, the 6th lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9, the tenth lens 10, optical filtering
The light exported after piece 11 is imaged on an imaging device.
First lens 1 are the biconvex lens with positive light coke.
Second lens 2 are the meniscus shaped lens with positive light coke, and the plane of incidence of second lens 2 is described curved
The convex surface of moon-shaped lens, the exit facet of second lens 2 are the concave surface of the meniscus shaped lens.
3rd lens 3 are the meniscus shaped lens with negative power, and the plane of incidence of the 3rd lens 3 is described curved
The convex surface of moon-shaped lens, the exit facet of the 3rd lens 3 are the concave surface of the meniscus shaped lens.
4th lens 4 are the biconvex lens with positive light coke.
5th lens 5 are the biconcave lens with negative power.
The plane of incidence of the exit facet and the 5th lens 5 of 4th lens 4 fits together, the 4th lens 4
Exit facet and the 5th lens 5 are glued be connected the compound lens for forming positive light coke.
6th lens 6 are the biconvex lens with positive light coke.
7th lens 7 are the biconvex lens with positive light coke.
8th lens 8 are the meniscus lens with negative power, and the plane of incidence of the 8th lens 8 is the bent moon
The convex surface of shape lens, the exit facet of the 8th lens 8 are the concave surface of the meniscus shaped lens.
9th lens 9 are the biconvex lens with positive light coke.
Tenth lens 10 are the meniscus lens with negative power, and the plane of incidence of the tenth lens 10 is described curved
The concave surface of moon-shaped lens, the exit facet of the tenth lens 10 are the convex surface of the meniscus shaped lens.
The plane of incidence of the exit facet and the tenth lens 10 of 9th lens 9 fits together, and the described 9th
The exit facet of lens 9 and the glued compound lens for being connected composition positive light coke of the plane of incidence of the tenth lens 10.
A kind of structure sectional view of high definition wide-angle unmanned plane camera lens as shown in Figure 2, the unmanned plane camera lens also include：Mirror
Cylinder 14, end cap, spacer ring, the end cap are tightened on the top of the lens barrel 14, the lens barrel 14, the end cap and institute by spacer ring
Spacer ring is stated to be used to encapsulate first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, diaphragm 13, the
Six lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9, the tenth lens 10, optical filter 11.
The imaging device is cmos image sensor or ccd image sensor, and the cmos image sensor or CCD are schemed
As being provided with sealing protection glass 12 in front of sensor.
Refractive index nd1 >=1.8 of first lens 1, Abbe number Vd1 >=40 of first lens 1.
Refractive index nd2 >=1.9 of second lens 2, Abbe number Vd2≤30 of second lens 2.
Refractive index nd3≤1.7 of 3rd lens 3, Abbe number Vd3 >=40 of the 3rd lens 3.
Refractive index nd4≤1.7 of 4th lens 4, Abbe number Vd4 >=40 of the 4th lens 4.
Refractive index nd5 >=1.8 of 5th lens 5, Abbe number Vd5≤25 of the 5th lens 5.
And difference nd5-nd4 >=0.15 of the refractive index of the 5th lens 5 and the refractive index of the 4th lens 4, institute
State difference Vd4-Vd5 >=25 of the Abbe number of the 4th lens 4 and the Abbe number of the 5th lens 5.
Refractive index nd6 >=1.9 of 6th lens 6, Abbe number Vd6≤20 of the 6th lens 6.
Refractive index nd7≤1.7 of 7th lens 7, Abbe number Vd7 >=40 of the 7th lens 7.
Refractive index nd9≤1.65 of 9th lens 9, Abbe number Vd9 >=50 of the 9th lens 9.
Refractive index nd10 >=1.9 of tenth lens 10, Abbe number Vd10≤36 of the tenth lens 10.
And difference nd10-nd9 >=0.25 of the refractive index of the tenth lens 10 and the refractive index of the 9th lens 9,
Difference Vd9-Vd10 >=30 of the Abbe number of 9th lens 9 and the Abbe number of the tenth lens 10.
First lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5 form preceding group of lens group,
Lens group is organized after 6th lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9, the tenth lens 10 composition.
The focal length of group lens group is f before describedBefore, the focal length that lens group is organized after described is fAfterwards, Jiao of the preceding group lens group
Away from fBeforeWith the focal length f of the rear group lens groupAfterwardsRatio be fBefore/fAfterwards；The ratio fBefore/fAfterwardsScope be -2.0≤fBefore/fAfterwards≤-
1.0。
The optical filter 11 can filter the light of 436nm to 656nm wave bands, make the high definition wide-angle unmanned plane camera lens work
Make in 436nm to 656nm wave bands.
First lens 1 described in first lens described in specific embodiment, the second lens 2, the 3rd lens 3, the 4th lens 4,
The ginseng of glass used by 5th lens 5, the 6th lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9, the tenth lens 10
Number is as shown in table 1.
A kind of whole focal length value of high definition wide-angle unmanned plane camera lens of the present invention is 7.48mm, f-number 2.5, and the angle of visual field is
58 degree, the length of the camera lens is 24.71mm, chief ray incidence angles≤15 degree, the imaging sensor that the imaging device uses
For SONY IMX117.
The unit of table 1：mm
From Fig. 1 and Fig. 2, it can be seen that lens numbers before being arranged in the diaphragm 13 and after being arranged in the diaphragm 13
Lens numbers are identical, first lens 1, the second lens 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6,
7th lens 7, the 8th lens 8, the 9th lens 9, the tenth lens 10 are cheap using high performance glass material, cost, additionally it is possible to
The high definition wide-angle unmanned plane camera lens is set to keep excellent performance, reliability under high/low temperature (- 20 DEG C to 80 DEG C) environment
It is good.
The high definition wide-angle unmanned plane camera lens is to g light (436nm), F light (486nm), e light (546nm), d light (588nm), C
Light (656nm) is respectively provided with good permeability, and has carried out aberration, chromatic aberration correction, solves the purple boundary of visible light wave range imaging
Problem.
A kind of point range figure of high definition wide-angle unmanned plane camera lens as shown in Figure 3, its medium wavelength take g light (436nm), F light
The weight ratio of (486nm), e light (546nm), d light (588nm) and C light (656nm) five wavelength is 9:23:29:27:10, from figure
It can be seen that the disc of confusion under each visual field compares concentration in 3, it is distributed also than more uniform, the disperse under some visual field does not occur
The phenomenon that spot separates up and down with wavelength, illustrate that purple boundary eliminates relatively good.
A kind of modulation transfer function curve map of high definition wide-angle unmanned plane camera lens as shown in Figure 4, from Fig. 4 it can be seen that
The high definition wide-angle unmanned plane camera lens by various aberration corrections to one preferably horizontal, i.e., described high definition wide-angle unmanned plane mirror
The comprehensive solution of head is as horizontal high.
The curvature of field and distortion figure of a kind of high definition wide-angle unmanned plane camera lens as shown in Figure 5, the curvature of field of the camera lens and distortion
Figure represents the distortion value of the camera lens under the different angles of visual field.It can be seen that the optical distortion of the camera lens is barrel distortion from Fig. 5,
The absolute value of the barrel distortion<2.5%.
The relative illumination curve map of a kind of high definition wide-angle unmanned plane camera lens as shown in Figure 6, it can be seen that curve from Fig. 6
Decline smoothly, angle value is contrasted under maximum field of view>0.6, imaging picture becomes clear.
A kind of high definition wide-angle shown in the axial chromatic aberration figure and Fig. 8 of a kind of high definition wide-angle unmanned plane camera lens as shown in Figure 7
The chromatic longitudiinal aberration figure of unmanned plane camera lens, it can be derived that the aberration of the high definition wide-angle unmanned plane camera lens is smaller.
A kind of defocus modulation transfer function curve map of high definition wide-angle unmanned plane camera lens as shown in Figure 9, spatial frequency are
160lp/mm, defocus scope are -0.03mm to 0.03mm, it can be seen that the degree of curvature of field correction is preferable from Fig. 9.When the mirror
When head has the curvature of field, the result of the image of collection is that center and periphery can not be synchronously clear, i.e., field of view center is adjusted to most clear
When, edge is but not clear enough, it is necessary to allow field of view edge to become apparent from by adjusting back the definition of reduction field of view center.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.
Specific case used herein is set forth to the principle and embodiment of the present invention, and above example is said
It is bright to be only intended to help the method and its core concept for understanding the present invention；Meanwhile for those of ordinary skill in the art, foundation
The thought of the present invention, in specific embodiments and applications there will be changes.In summary, this specification content is not
It is interpreted as limitation of the present invention.
Claims (6)
1. a kind of high definition wide-angle unmanned plane camera lens, the unmanned plane camera lens are taken pictures to object, the image of object is obtained, its feature exists
In the unmanned plane camera lens specifically includes：First lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, diaphragm,
6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter and imaging device；
Wherein, the light sent from object passes sequentially through first lens, the second lens, the 3rd lens, the 4th lens, the 5th
Output light after lens, diaphragm, the 6th lens, the 7th lens, the 8th lens, the 9th lens, the tenth lens, optical filter, it is described
Output light is imaged on an imaging device；
First lens are the biconvex lens with positive light coke；
Second lens are the meniscus shaped lens with positive light coke, and the plane of incidence of second lens is saturating for the falcate
The convex surface of mirror, the exit facet of second lens are the concave surface of the meniscus shaped lens；
3rd lens are the meniscus shaped lens with negative power, and the plane of incidence of the 3rd lens is saturating for the falcate
The convex surface of mirror, the exit facet of the 3rd lens are the concave surface of the meniscus shaped lens；
4th lens are the biconvex lens with positive light coke；
5th lens are the biconcave lens with negative power；
The plane of incidence of the exit facet and the 5th lens of 4th lens fits together；
6th lens are the biconvex lens with positive light coke；
7th lens are the biconvex lens with positive light coke；
8th lens are the meniscus lens with negative power, and the plane of incidence of the 8th lens is the meniscus shaped lens
Convex surface, the exit facets of the 8th lens is the concave surface of the meniscus shaped lens；
9th lens are the biconvex lens with positive light coke；
Tenth lens are the meniscus lens with negative power, and the plane of incidence of the tenth lens is the meniscus shaped lens
Concave surface, the exit facets of the tenth lens is the convex surface of the meniscus shaped lens；
The plane of incidence of the exit facet and the tenth lens of 9th lens fits together.
2. a kind of high definition wide-angle unmanned plane camera lens according to claim 1, it is characterised in that the unmanned plane camera lens also wraps
Include：Lens barrel, spacer ring, end cap, the lens barrel, the spacer ring and the end cap are used to encapsulating first lens, described second saturating
Mirror, the 3rd lens, the 4th lens, the 5th lens, the diaphragm, the 6th lens, the 7th lens,
8th lens, the 9th lens, the tenth lens, the optical filter.
3. a kind of high definition wide-angle unmanned plane camera lens according to claim 1, it is characterised in that the imaging device is CMOS
Imaging sensor or ccd image sensor.
A kind of 4. high definition wide-angle unmanned plane camera lens according to claim 1, it is characterised in that the refraction of first lens
Rate nd1 >=1.8, Abbe number Vd1 >=40 of first lens；
Refractive index nd2 >=1.9 of second lens, Abbe number Vd2≤30 of second lens；
Refractive index nd3≤1.7 of 3rd lens, Abbe number Vd3 >=40 of the 3rd lens；
Refractive index nd4≤1.7 of 4th lens, Abbe number Vd4 >=40 of the 4th lens；
Refractive index nd5 >=1.8 of 5th lens, Abbe number Vd5≤25 of the 5th lens；
And difference nd5-nd4 >=0.15 of the refractive index of the 5th lens and the refractive index of the 4th lens, the described 4th
Difference Vd4-Vd5 >=25 of the Abbe number of lens and the Abbe number of the 5th lens；
Refractive index nd6 >=1.9 of 6th lens, Abbe number Vd6≤20 of the 6th lens；
Refractive index nd7≤1.7 of 7th lens, Abbe number Vd7 >=40 of the 7th lens；
Refractive index nd9≤1.65 of 9th lens, Abbe number Vd9 >=50 of the 9th lens；
Refractive index nd10 >=1.9 of tenth lens, Abbe number Vd10≤36 of the tenth lens；
And difference nd10-nd9 >=0.25 of the refractive index of the tenth lens and the refractive index of the 9th lens, the described 9th
Difference Vd9-Vd10 >=30 of the Abbe number of lens and the Abbe number of the tenth lens.
5. a kind of high definition wide-angle unmanned plane camera lens according to claim 1, it is characterised in that first lens, second
Lens, the 3rd lens, the 4th lens, the 5th lens composition before group lens group, the 6th lens, the 7th lens, the 8th lens,
Lens group is organized after 9th lens, the tenth lens composition；
The focal length of group lens group is f before describedBefore, the focal length that lens group is organized after described is fAfterwards；
The focal length f of group lens group before describedBeforeWith the focal length f of the rear group lens groupAfterwardsRatio be fBefore/fAfterwards；
The ratio fBefore/fAfterwardsScope be -2.0≤fBefore/fAfterwards≤-1.0。
6. a kind of high definition wide-angle unmanned plane camera lens according to claim 1, it is characterised in that the optical filter can make
The light of 436nm to 656nm wave bands passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317057.4A CN107861229B (en) | 2017-12-12 | 2017-12-12 | High definition wide angle unmanned aerial vehicle camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711317057.4A CN107861229B (en) | 2017-12-12 | 2017-12-12 | High definition wide angle unmanned aerial vehicle camera lens |
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| CN112269238A (en) * | 2020-11-04 | 2021-01-26 | 中国航空工业集团公司洛阳电光设备研究所 | Day and night dual-purpose athermal lens with wide illumination range |
| CN110579861B (en) * | 2019-09-12 | 2021-07-20 | 浙江大华技术股份有限公司 | Lens |
| CN113219638A (en) * | 2021-04-28 | 2021-08-06 | 江苏大学 | Ultra-wide-angle high-definition monitoring lens device, monitoring system and correction algorithm |
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| CN113219638B (en) * | 2021-04-28 | 2022-07-22 | 江苏大学 | Ultra-wide-angle high-definition monitoring lens device, monitoring system and correction algorithm |
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