CN206235771U - Panoramic looking-around pick-up lens - Google Patents
Panoramic looking-around pick-up lens Download PDFInfo
- Publication number
- CN206235771U CN206235771U CN201621219259.6U CN201621219259U CN206235771U CN 206235771 U CN206235771 U CN 206235771U CN 201621219259 U CN201621219259 U CN 201621219259U CN 206235771 U CN206235771 U CN 206235771U
- Authority
- CN
- China
- Prior art keywords
- lens
- imaging system
- panoramic
- hemispheric
- reflecting surface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of panoramic looking-around pick-up lens, including：Sequentially it is located at Hemispheric panoramic imaging system, diaphragm, follow-up lens group, optical filter and image planes in same optical axis.Hemispheric panoramic imaging system is to surround the rotationally symmetrical convex polyhedron of optical axis, and convex polyhedron is provided with two planes of refraction and two reflectings surface.Follow-up lens group is positive glass balsaming lens and plastic aspheric lenes including focal power, and diaphragm is located between Hemispheric panoramic imaging system and glass balsaming lens.The utility model can strictly control the distortion of imaging region using multiple aspheric surface technologies, so as to increase the information content of full shot peripheral angle, and be conducive to the later stage to do further image procossing.The quantity of follow-up lens group is simplified in guarantee high-resolution condition, the brightness on camera lens periphery is improve, so as to ensure overall picture brightness uniformity.And the characteristics of with small volume, low cost, high brightness, it is particularly well-suited to monitoring and automotive camera system.
Description
Technical field
The utility model is related to field of optical device technology, more particularly to a kind of panoramic looking-around pick-up lens.
Background technology
Panoramic technique is a kind of novel visual technology for developing rapidly at present, at present generally using single-lens Overlap-scanning and
Many camera lenses shoot two kinds of technologies of splicing simultaneously.Single-lens Overlap-scanning Technical comparing is ripe, but because rotation sweep needs necessarily
Time, cause to be unable to real-time image acquisition signal, and to ensure splicing precision, two photos requirement of adjacent shooting has certain
Lap.Many camera lenses shoot splicing and are usually used in public place, many camera lenses while shooting image information, will gather simultaneously
To picture signal be transferred to computer and carry out image mosaic treatment, but because projective invariant is big, peripheral information amount is few, and
Complex structure, image mosaic is difficult, and the coherence request to every camera lens is high.
It is this as described in patent US Patent 5,473,474,1995 and patent 200710068223.1, it is proposed that a kind of
Panoramic looking-around phtographic lens PAL (Panoramic Annular Lens) technology, FCP (Flat are thrown using plane cylinder
Cylinder Perspective), the defect of central projection method is overcome, will be around 360 ° of cylinders of scope of system optical axis
Visual field is projected in an annular domain on two bit planes.The technical problem that presently, there are：Due to adopting first piece of PAL eyeglass more
Glass spheric glass is used, light path is complicated, and chromatic aberration correction is difficult, or cause follow-up lens group complicated, systems bulky, veiling glare
The technical disadvantages such as serious.
Based on above mentioned problem, the utility model proposes a kind of new omnidirectional imaging system design, and solve
The problem that existing omnidirectional imaging system is present.
Utility model content
The purpose of this utility model is to overcome weak point of the prior art, there is provided a kind of panoramic looking-around pick-up lens,
The characteristics of with small volume, low cost, high brightness.
The purpose of this utility model is achieved through the following technical solutions：
A kind of panoramic looking-around pick-up lens, including：Sequentially it is located at Hemispheric panoramic imaging system in same optical axis, diaphragm, follow-up
Lens group, optical filter and image planes；
The Hemispheric panoramic imaging system is to surround the rotationally symmetrical convex polyhedron of optical axis, and the convex polyhedron is provided with two foldings
Penetrate face and two reflectings surface；
The follow-up lens group is positive glass balsaming lens and plastic aspheric lenes, the diaphragm including focal power
Between the Hemispheric panoramic imaging system and the glass balsaming lens, it is public that the plastic aspheric lenes meets following condition
Formula：Nd ＞ 1.56, Vd ＜ 29, wherein, Nd is refractive index, and Vd is Abbe number.
As a kind of preferred scheme of the utility model, the Hemispheric panoramic imaging system towards the prism of thing side be the first folding
Face is penetrated, the prism towards image side is the first reflecting surface, the top of the Hemispheric panoramic imaging system is the second reflecting surface, bottom is the
Two planes of refraction.
Used as a kind of preferred scheme of the utility model, the first refractive face is aspherical with first reflecting surface.
Used as a kind of preferred scheme of the utility model, second reflecting surface is circular conical surface with second plane of refraction.
Used as a kind of preferred scheme of the utility model, the Hemispheric panoramic imaging system also has non-optical face, described first
Plane of refraction, first reflecting surface, second reflecting surface and second plane of refraction are connected and composed by the non-optical face
One lens ring entirety.
As a kind of preferred scheme of the utility model, the optics bore of first reflecting surface and second reflecting surface
Optics bore ratio be less than 1.7.
Used as a kind of preferred scheme of the utility model, the plastic aspheric lenes meets following condition formula：15<
f2/|f|<25, wherein, f2 is the focal length of plastic aspheric lenes, and f is the focal length of whole pick-up lens.
Compared with prior art, the utility model has advantages below：
The utility model can strictly control the distortion of imaging region, so as to increase panorama using multiple aspheric surface technologies
The information content of pick-up lens peripheral angle is looked around, and is conducive to the later stage to do further image procossing.Ensureing that panoramic looking-around takes the photograph
As enormously simplify the quantity of follow-up lens group under the conditions of camera lens high-resolution, and improve panoramic looking-around pick-up lens periphery
Brightness, so as to ensure overall picture brightness uniformity.And the characteristics of with small volume, low cost, high brightness, can extensive use
In fields such as pipe detection, computer vision, robot vision, monitoring and automotive camera system are particularly well-suited to.
Brief description of the drawings
Fig. 1 is the structure chart of the panoramic looking-around pick-up lens of the embodiment of the utility model one；
Fig. 2 is the structure chart of the Hemispheric panoramic imaging system of the panoramic looking-around pick-up lens in Fig. 1.
Specific embodiment
For the ease of understanding the utility model, the utility model is more fully retouched below with reference to relevant drawings
State.Better embodiment of the present utility model is given in accompanying drawing.But, the utility model can come in many different forms
Realize, however it is not limited to embodiments described herein.On the contrary, the purpose for providing these implementation methods is to make to this practicality newly
It is more thorough comprehensive that the disclosure of type understands.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with technology of the present utility model is belonged to
The implication that the technical staff in domain is generally understood that is identical.It is herein to be in term used in the description of the present utility model
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term as used herein " and/or " bag
Include the arbitrary and all of combination of one or more related Listed Items.
As shown in figure 1, the structure chart of the panoramic looking-around pick-up lens 10 for the embodiment of the utility model one.
A kind of panoramic looking-around pick-up lens 10, including：Sequentially it is located at the Hemispheric panoramic imaging system 100, diaphragm in same optical axis
200th, follow-up lens group 300, optical filter 400 and image planes 500.
Hemispheric panoramic imaging system 100 is to surround the rotationally symmetrical convex polyhedron of optical axis, and convex polyhedron is provided with two planes of refraction
With two reflectings surface.
With reference to shown in Fig. 1 and Fig. 2, Hemispheric panoramic imaging system 100 towards the prism of thing side be first refractive face 110, direction
The prism of image side is the first reflecting surface 120, and the top of Hemispheric panoramic imaging system 100 is the second reflecting surface 130, and bottom is the second folding
Penetrate face 140.The ratio of the optics bore of the optics bore of the first reflecting surface 120 and the second reflecting surface 130 is less than 1.7.
Further, Hemispheric panoramic imaging system 100 also has non-optical face 150, first refractive face 110, the first reflecting surface
120th, the second reflecting surface 130 and the second plane of refraction 140 connect and compose a lens ring entirety by non-optical face 150.So
It is designed with beneficial to the one-shot forming of Hemispheric panoramic imaging system 100 and production and assembly.
Specifically, non-optical face 150 can not carry out specific direction herein by light absorbing in black light absorption portion and light
The mat surface combination of reflection is constituted.
In the embodiment of the utility model one, Hemispheric panoramic imaging system 100 uses perspex material, the shape of the transparent material
Shape is around the rotationally symmetrical convex polyhedron of central optical axis.First refractive face 110 is aspherical with the first reflecting surface 120, and second is anti-
It is circular conical surface to penetrate the plane of refraction 140 of face 130 and second.So design advantageously reduces the bore of Hemispheric panoramic imaging system 100, reduces whole
The volume of individual pick-up lens.
Referring to Fig. 1, light is with the incident angle of (20 ° -120 °) × 360 ° first from Hemispheric panoramic imaging system 100
First refractive face 110 is injected into the inside of Hemispheric panoramic imaging system 100, and light is delivered to the first reflecting surface 120 along refractive direction,
Light continues to be transmitted in the inside of Hemispheric panoramic imaging system 100 after being reflected by the first reflecting surface 120, and light is transmitted along reflection direction
To the second reflecting surface 130, light continues to be transmitted in the inside of Hemispheric panoramic imaging system 100 after being reflected by the second reflecting surface 130, light
The second plane of refraction 140 is delivered to along reflection direction, light reflects Hemispheric panoramic imaging system 100 by the second plane of refraction 140.
The utility model uses rotational symmetric aspheric, and circular iris 200 is imaged on the non-co- of Hemispheric panoramic imaging system 100
Yoke surface, can be effectively prevented from the generation of ghost.
Due to using multiple aspheric surface technologies, can strictly control the distortion of imaging region, and make its imaging relations basic
Meet the linear change of H=f θ, increase the information content of whole pick-up lens peripheral angle, and be conducive to the later stage to do further
Image procossing.Wherein, H is image height, and f is system focal length, and θ is field of view angle.And can be under the conditions of high-resolution is ensured
The quantity of follow-up lens group 300 is enormously simplify, and improves the brightness on optical system periphery, so as to ensure system overall picture
Brightness uniformity.
Referring to Fig. 1, it is non-with plastic cement that follow-up lens group 300 is positive glass balsaming lens 310 including focal power
Spherical lens 320, diaphragm 200 is located between Hemispheric panoramic imaging system 100 and glass balsaming lens 310, plastic aspheric lenes 320
Meet following condition formula：Nd ＞ 1.56, Vd ＜ 29, wherein, Nd is refractive index, and Vd is Abbe number.
It is noted that diaphragm 200 be located between Hemispheric panoramic imaging system 100 and glass balsaming lens 310, can block from
The plane of refraction 140 of Hemispheric panoramic imaging system 100 second is refracted into the light for being not involved in imaging of follow-up lens group 300, is conducive to disappearing
Except whole pick-up lens veiling glare, and then improve image quality.Follow-up lens group 300 sets plastic aspheric lenes 320 and is conducive to
Correction system off-axis aberration, improves the resolution ratio of whole pick-up lens.
In the present embodiment, plastic aspheric lenes 320 meets following condition formula：15<f2/|f|<25, wherein, f2 is
The focal length of plastic aspheric lenes, f is the focal length of whole pick-up lens, each power of lens by reasonable distribution, from
And ensure panoramic looking-around pick-up lens 10 in -40 ° of -85 ° of ambient temperature range normal imagings, extrawide angle lens is met in monitoring or car
The fields such as load are to the use requirement under various adverse circumstances.
Compared with prior art, the utility model has advantages below：
The utility model can strictly control the distortion of imaging region, so as to increase panorama using multiple aspheric surface technologies
The information content of pick-up lens peripheral angle is looked around, and is conducive to the later stage to do further image procossing.Ensureing that panoramic looking-around takes the photograph
As enormously simplify the quantity of follow-up lens group under the conditions of camera lens high-resolution, and improve panoramic looking-around pick-up lens periphery
Brightness, so as to ensure overall picture brightness uniformity.And the characteristics of with small volume, low cost, high brightness, can extensive use
In fields such as pipe detection, computer vision, robot vision, monitoring and automotive camera system are particularly well-suited to.
The above implementation method only expresses several embodiments of the present utility model, and its description is more specific and detailed
Carefully, but can not therefore and be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that general for this area
For logical technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these are all
Belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (7)
1. a kind of panoramic looking-around pick-up lens, it is characterised in that including：Sequentially be located at same optical axis on Hemispheric panoramic imaging system,
Diaphragm, follow-up lens group, optical filter and image planes；
The Hemispheric panoramic imaging system is to surround the rotationally symmetrical convex polyhedron of optical axis, and the convex polyhedron is provided with two planes of refraction
With two reflectings surface；
The follow-up lens group is positive glass balsaming lens and plastic aspheric lenes including focal power, and the diaphragm is located at
Between the Hemispheric panoramic imaging system and the glass balsaming lens, the plastic aspheric lenes meets following condition formula：Nd
＞ 1.56, Vd ＜ 29, wherein, Nd is refractive index, and Vd is Abbe number.
2. panoramic looking-around pick-up lens according to claim 1, it is characterised in that the Hemispheric panoramic imaging system is towards thing side
Prism be first refractive face, the prism towards image side is the first reflecting surface, and the top of the Hemispheric panoramic imaging system is the
Two reflectings surface, bottom is the second plane of refraction.
3. panoramic looking-around pick-up lens according to claim 2, it is characterised in that the first refractive face and described first
Reflecting surface is aspherical.
4. panoramic looking-around pick-up lens according to claim 2, it is characterised in that second reflecting surface and described second
Plane of refraction is circular conical surface.
5. panoramic looking-around pick-up lens according to claim 2, it is characterised in that the Hemispheric panoramic imaging system also has non-
Optical surface, the first refractive face, first reflecting surface, second reflecting surface and second plane of refraction are by described non-
Optical surface connects and composes a lens ring entirety.
6. panoramic looking-around pick-up lens according to claim 2, it is characterised in that the optics bore of first reflecting surface
Ratio with the optics bore of second reflecting surface is less than 1.7.
7. panoramic looking-around pick-up lens according to claim 1, it is characterised in that the plastic aspheric lenes meet with
Lower condition formula：15<f2/|f|<25, wherein, f2 is the focal length of plastic aspheric lenes, and f is the focal length of whole pick-up lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219259.6U CN206235771U (en) | 2016-11-10 | 2016-11-10 | Panoramic looking-around pick-up lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621219259.6U CN206235771U (en) | 2016-11-10 | 2016-11-10 | Panoramic looking-around pick-up lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206235771U true CN206235771U (en) | 2017-06-09 |
Family
ID=58990045
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621219259.6U Active CN206235771U (en) | 2016-11-10 | 2016-11-10 | Panoramic looking-around pick-up lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206235771U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656417A (en) * | 2017-11-19 | 2018-02-02 | 佛山鑫进科技有限公司 | A kind of robot imaging optical system |
| CN109752915A (en) * | 2017-11-01 | 2019-05-14 | 广州长步道光电科技有限公司 | A kind of 360 ° are looked around outer wall detector lens structure |
| CN115327849A (en) * | 2022-09-05 | 2022-11-11 | 同济人工智能研究院(苏州)有限公司 | Panoramic lens and gas monitoring equipment |
-
2016
- 2016-11-10 CN CN201621219259.6U patent/CN206235771U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109752915A (en) * | 2017-11-01 | 2019-05-14 | 广州长步道光电科技有限公司 | A kind of 360 ° are looked around outer wall detector lens structure |
| CN107656417A (en) * | 2017-11-19 | 2018-02-02 | 佛山鑫进科技有限公司 | A kind of robot imaging optical system |
| CN115327849A (en) * | 2022-09-05 | 2022-11-11 | 同济人工智能研究院(苏州)有限公司 | Panoramic lens and gas monitoring equipment |
| CN115327849B (en) * | 2022-09-05 | 2024-02-06 | 同济人工智能研究院(苏州)有限公司 | Panoramic lens and gas monitoring equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102495460B (en) | Panoramic imaging lens | |
| US8351133B2 (en) | 360 degree viewing angle lens unit and optical lens system using same | |
| CN108388004B (en) | A kind of starlight grade high definition day and night confocal optics camera lens | |
| CN101414054B (en) | Device and method for implementing stereo imaging by overall view ring belt imaging lens | |
| CN206235771U (en) | Panoramic looking-around pick-up lens | |
| CN110824669B (en) | 8K high-resolution panoramic annular optical lens | |
| CN204044421U (en) | A kind of focal length type Panoramic annular imaging camera lens | |
| CN104155758B (en) | Large-view-field curved surface focal plane imaging method and system based on image transmitting optical fiber bundle | |
| WO2017107910A1 (en) | Panoramic optical lens and image capturing device | |
| CN107741625A (en) | A kind of low-cost and high-performance drive recorder camera lens | |
| CN105511061B (en) | A kind of ultra-wide angle high definition optical lens | |
| CN101339289B (en) | Wide-angle lens | |
| CN105445900B (en) | Imaging lens, iris imaging module and iris identification device | |
| CN209167661U (en) | A kind of large aperture near-infrared camera lenses | |
| CN205958831U (en) | On -vehicle optical lens system of little distortion of super wide angle | |
| CN107436479A (en) | Inexpensive large aperture 4MP is without thermalization tight shot | |
| CN203133373U (en) | Ultra-wide angle fish-eye lens | |
| CN208026982U (en) | Big field angle pin hole imaging optical system | |
| CN109507788A (en) | A kind of large aperture near-infrared camera lenses | |
| CN206906681U (en) | A kind of novel on-vehicle lens optical system | |
| CN206725835U (en) | A kind of fish eye lens | |
| CN206773281U (en) | A kind of high definition panorama looks around optical imaging device | |
| CN205301692U (en) | Low -cost varifocal optical system of with great visual angle little volume | |
| CN204515242U (en) | A kind of eyepiece, wear eyepiece system and micro-display helmet | |
| CN207123648U (en) | Inexpensive large aperture 4MP is without thermalization tight shot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |