CN208752289U - A kind of high definition panorama fish eye lens - Google Patents
A kind of high definition panorama fish eye lens Download PDFInfo
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- CN208752289U CN208752289U CN201821688553.0U CN201821688553U CN208752289U CN 208752289 U CN208752289 U CN 208752289U CN 201821688553 U CN201821688553 U CN 201821688553U CN 208752289 U CN208752289 U CN 208752289U
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Abstract
The utility model discloses a kind of high definition panorama fish eye lenses, including lens barrel, gland, first lens, second lens, the third lens, 4th lens, 5th lens and SWC sub-wavelength structure plated film, the left end of the lens barrel is equipped with and is threaded with gland, the left end of gland is equipped with pressing ring, pressing ring and gland are integrally machined by same material, the right end of lens barrel is equipped with interconnecting piece, the inside left end of lens barrel is equipped with the first groove, the right end of first groove is equipped with the second groove, the right end of second groove is equipped with third groove, the right end of third groove is equipped with the 4th groove, the diameter of first groove is greater than the diameter of the second groove, the diameter of second groove is greater than the diameter of third groove.The aspherical lens of the utility model setting can increase fish-eye resolution ratio；The SWC sub-wavelength structure plated film of setting can continue to change refractive index, to eliminate the boundary of refractive index meeting sudden change, can be realized and more preferably inhibit reflecting effect than steam plated film.
Description
Technical field
The utility model relates to fish eye lens field, specifically a kind of high definition panorama fish eye lens.
Background technique
Currently, general common monitoring camera field angle just needs to install at 60 ° or so if necessary to large-range monitoring
Several monitoring cameras can realize the covering of monitoring area, big so as to cause the demand of equipment and materials, increased costs.And
Fish-eye FOV is generally higher than 180 ° in the prior art, and can be normally reached 220 ° -230 °, and therefore, fish eye lens can
It easily realizes overall view monitoring, can effectively avoid the generation of leakage prison phenomenon, supermarket, bank, market can be widely used in
Etc. mechanisms.Existing fish-eye number of lenses is on the high side, and overall cost is higher, and volume is bigger than normal, so that its flexibility is not high.
Utility model content
The purpose of this utility model is to provide a kind of high definition panorama fish eye lenses, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the utility model provides the following technical solutions:
A kind of high definition panorama fish eye lens, including lens barrel, gland, the first lens, the second lens, the third lens, the 4th are thoroughly
Mirror, the 5th lens and SWC sub-wavelength structure plated film, the left end of the lens barrel, which is equipped with, is threaded with gland, and the left end of gland is set
There is pressing ring, pressing ring and gland are integrally machined by same material, and the right end of lens barrel is equipped with interconnecting piece, and the inside left end of lens barrel is set
There is the first groove, the right end of the first groove is equipped with the second groove, and the right end of the second groove is equipped with third groove, the right side of third groove
End is equipped with the 4th groove, and the diameter of the first groove is greater than the diameter of the second groove, and the diameter of the second groove is greater than third groove
Diameter；5th lens are arranged in the 4th groove, and the left side of the 5th lens is equipped with the first spacer ring, and the setting of the first spacer ring is the
In three grooves, the left end of the first spacer ring is equipped with the 4th lens, and the left end of the 4th lens is equipped with the third lens, and the third lens setting exists
In third groove；The left end of the third lens is equipped with the second spacer ring, and the second spacer ring is arranged in the second groove, the second spacer ring
Left end is equipped with the second lens, and the second lens are arranged in the second groove, and the left side of the second lens is equipped with the first lens, the first lens
It is arranged in the first groove.
Further scheme as the utility model: the third lens are biconcave lens, and the 4th lens are single convex surface
Lens, and pass through formation balsaming lens glued together between the third lens and the 4th lens.
Further scheme as the utility model: first lens and the second lens are meniscus lens, the Asia SWC wave
The inner concave of the first lens is arranged in long structure plated film.
Further scheme as the utility model: the first lens and the 5th lens are non-spherical lens, the first lens
It is made using single crystal germanium material.
Compared with prior art, the aspherical lens of the utility model setting can increase fish-eye resolution ratio；If
The SWC sub-wavelength structure plated film set can continue to change refractive index, to eliminate the boundary of refractive index meeting sudden change, Neng Goushi
Now more preferably inhibit reflecting effect than steam plated film.
Detailed description of the invention
Fig. 1 is a kind of fish-eye structural schematic diagram of high definition panorama.
Fig. 2 is a kind of fish-eye axial chromatic aberration schematic diagram of high definition panorama.
Fig. 3 is a kind of fish-eye distortion curve of high definition panorama.
In figure: 1, lens barrel；2, gland；3, pressing ring；4, the first lens；5, the second lens；6, the second spacer ring；7, third is saturating
Mirror；8, the 4th lens；9, the first spacer ring；10, the 5th lens；11, interconnecting piece；12, the first groove；13, the second groove；14,
Three grooves；15, SWC sub-wavelength structure plated film；16, the 4th groove.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Please refer to Fig. 1-3, a kind of high definition panorama fish eye lens, including lens barrel 1, gland 2, the first lens 4, the second lens 5,
The left end of the third lens 7, the 4th lens 8, the 5th lens 10 and SWC sub-wavelength structure plated film 15, the lens barrel 1 connects equipped with screw thread
It is connected to gland 2, the left end of gland 2 is equipped with pressing ring 3, and pressing ring 3 and gland 2 are integrally machined by same material, the right end of lens barrel 1
Equipped with interconnecting piece 11, the inside left end of lens barrel 1 is equipped with the first groove 12, and the right end of the first groove 12 is equipped with the second groove 13, the
The right end of two grooves 13 is equipped with third groove 14, and the right end of third groove 14 is equipped with the 4th groove 16, the diameter of the first groove 12
Greater than the diameter of the second groove 13, the diameter of the second groove 13 is greater than the diameter of third groove 14.
5th lens 10 are arranged in the 4th groove 16, and the left side of the 5th lens 10 is equipped with the first spacer ring 9, first every
Circle 9 is arranged in third groove 14, and the left end of the first spacer ring 9 is equipped with the 4th lens 8, and it is saturating that the left end of the 4th lens 8 is equipped with third
Mirror 7, the third lens 7 are arranged in third groove 14.
The third lens 7 are biconcave lens, and the 4th lens 8 are single convex lens, and the third lens 7 and the 4th lens
Pass through formation balsaming lens glued together between 8.
The left end of the third lens 7 is equipped with the second spacer ring 6, and the second spacer ring 6 is arranged in the second groove 13, the second spacer ring
6 left end is equipped with the second lens 5, and the second lens 5 are arranged in the second groove 13, and the left side of the second lens 5 is equipped with the first lens
4, the first lens 4 are arranged in the first groove 12.
First lens 4 and the second lens 5 are meniscus lens, and the setting of SWC sub-wavelength structure plated film 15 is saturating first
In the inner concave of mirror 4；The SWC sub-wavelength structure plated film of setting can continue to change refractive index, so that eliminating refractive index can be unexpected
The boundary of change, can be realized and more preferably inhibit reflecting effect than steam plated film.
First lens 4 and the 5th lens 10 are non-spherical lens.
First lens 4 and the setting of the 5th lens 10 need to meet following formula:
Wherein, Z (Y) be used for indicate it is aspherical along infrared fish-eye optical axis Z height be Y position when, apart from ball
Vertex of surface apart from rise Sag；R is used to indicate the paraxial curvature radius of mirror surface；K is for indicating circular cone coefficient conic；A,B,C
It is high order aspheric surface coefficient with D.
The setting of the present embodiment camera lens meets the following conditions:
0.01 < 1/FG1+1/FG2< 0.24；
Wherein, 1/FG1For the diopter of first lens 4,1/FG2For the diopter of second lens 5.
When keeping the diopter of the first lens 4 and the second lens 5 smaller, enable to each eyeglass manufacture susceptibility lower, drop
Low production cost, and it is easy to modify lateral chromatic aberration and curvature of the image, to guarantee the fish-eye overall length of ultra-wide angle, be conducive to
It is minimized.
First lens 4 are made using single crystal germanium material.
Fig. 3 is infrared fish-eye distortion curve schematic diagram in the present embodiment, wherein denoting under different field angles
Distort sizes values, controls -150, has obtained preferable amendment.
Fig. 2 is fish-eye axial chromatic aberration schematic diagram in the present embodiment, and the lateral chromatic aberration of existing camera lens requires in love
Within the scope of spot, due to the fluctuation of light, by aperture diffraction can occur for light, and the maximum speck in diffraction central area is Airy disk；
The angle and wavelength (λ) of Airy disk and the diameter (d) of aperture meet relationship: sinθ=1.22 λ/d；
Wherein, θ, that is, first dark ring diffraction direction angle, because of the general very little in the angle θ, sinθ≈ θ, so, θ ≈ 1.22
λ/d；For optical imaging system, the limit of imaging surface resolution ratio is measured with Airy spot diameter, Airy radius is r=
1.22λf/d；If lateral chromatic aberration is excessive, it is found that color is uneven on imaging surface.
Figure it is seen that the lateral chromatic aberration of the light of different frequency is most of all within the scope of Aili spot, imaging aberrations
Relatively uniform, i.e., axial chromatic aberration has obtained good correction, can not focus and realize sharply defined image.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The preferred embodiment of the patent is described in detail above, but this patent is not limited to above-mentioned embodiment party
Formula within the knowledge of one of ordinary skill in the art can also be under the premise of not departing from this patent objective
Various changes can be made.
Claims (4)
1. a kind of high definition panorama fish eye lens, including lens barrel (1), gland (2), the first lens (4), the second lens (5), third are saturating
Mirror (7), the 4th lens (8), the 5th lens (10) and SWC sub-wavelength structure plated film (15), which is characterized in that the lens barrel (1)
Left end be equipped with and be threaded with gland (2), the left end of gland (2) is equipped with pressing ring (3), and pressing ring (3) and gland (2) are by material of the same race
Material is integrally machined, and the right end of lens barrel (1) is equipped with interconnecting piece (11), and the inside left end of lens barrel (1) is equipped with the first groove (12),
The right end of first groove (12) is equipped with the second groove (13), and the right end of the second groove (13) is equipped with third groove (14), and third is recessed
The right end of slot (14) is equipped with the 4th groove (16), and the diameter of the first groove (12) is greater than the diameter of the second groove (13), and second is recessed
The diameter of slot (13) is greater than the diameter of third groove (14)；5th lens (10) setting is in the 4th groove (16), and the 5th
The left side of lens (10) is equipped with the first spacer ring (9), and the first spacer ring (9) setting is in third groove (14), a left side for the first spacer ring (9)
End is equipped with the 4th lens (8), and the left end of the 4th lens (8) is equipped with the third lens (7), and the third lens (7) are arranged in third groove
(14) in；The left end of the third lens (7) is equipped with the second spacer ring (6), and the second spacer ring (6) setting is interior in the second groove (13),
The left end of second spacer ring (6) is equipped with the second lens (5), and the second lens (5) setting is in the second groove (13), the second lens (5)
Left side be equipped with the first lens (4), the first lens (4) setting is in the first groove (12).
2. a kind of high definition panorama fish eye lens according to claim 1, which is characterized in that the third lens (7) are double
Concave lens, the 4th lens (8) are single convex lens, and by glued together between the third lens (7) and the 4th lens (8)
Form balsaming lens.
3. a kind of high definition panorama fish eye lens according to claim 1, which is characterized in that first lens (4) and
Two lens (5) are meniscus lens, and the inner concave in the first lens (4) is arranged in SWC sub-wavelength structure plated film (15).
4. a kind of high definition panorama fish eye lens according to claim 1, which is characterized in that first lens (4) and
Five lens (10) are non-spherical lens, and the first lens (4) are made using single crystal germanium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821688553.0U CN208752289U (en) | 2018-10-18 | 2018-10-18 | A kind of high definition panorama fish eye lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821688553.0U CN208752289U (en) | 2018-10-18 | 2018-10-18 | A kind of high definition panorama fish eye lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208752289U true CN208752289U (en) | 2019-04-16 |
Family
ID=66085909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821688553.0U Expired - Fee Related CN208752289U (en) | 2018-10-18 | 2018-10-18 | A kind of high definition panorama fish eye lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208752289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112492186A (en) * | 2020-12-15 | 2021-03-12 | 维沃移动通信有限公司 | Camera shooting assembly and electronic equipment |
-
2018
- 2018-10-18 CN CN201821688553.0U patent/CN208752289U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112492186A (en) * | 2020-12-15 | 2021-03-12 | 维沃移动通信有限公司 | Camera shooting assembly and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20191018 |
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| CF01 | Termination of patent right due to non-payment of annual fee |