CN106646831A - Aspheric catadioptric panoramic imaging lens - Google Patents
Aspheric catadioptric panoramic imaging lens Download PDFInfo
- Publication number
- CN106646831A CN106646831A CN201710063872.6A CN201710063872A CN106646831A CN 106646831 A CN106646831 A CN 106646831A CN 201710063872 A CN201710063872 A CN 201710063872A CN 106646831 A CN106646831 A CN 106646831A
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- Prior art keywords
- lens
- catadioptric
- microscope group
- refraction
- refractive
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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
- G02B13/001—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
-
- 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
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
-
- 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
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Abstract
The invention provides an aspheric catadioptric panoramic imaging lens including a catadioptric lens group, a variable diaphragm, and a relay lens group that are successively arranged, the catadioptric lens group is provided with a catadioptric first lens and a catadioptric second lens that are coaxially arranged and successively arranged along the direction from the catadioptric lens group to the relay lens group, and the catadioptric first lens and the catadioptric second lens are connected through a connecting surface. The aspheric catadioptric panoramic imaging lens realizes the full-visual-angle super-wide-angle high definition imaging, and provides proper angle amplification multiplying power to enlarge the visual field; and the catadioptric lens group adopts a lens group, can bear larger vertical visual field and the relative aperture, and has the effects of compact structure, small size, and convenient installation.
Description
Technical field
The present invention relates to optical system and device design field, and in particular to a kind of aspherical refractive and reflective panorama imaging
Camera lens.
Background technology
At present, video monitoring system is widely used in each field, has been increasingly equipped with regarding on automobile, aircraft, submarine
Frequency monitoring system, but traditional camera is due to camera lens limiting factor, therefore visual field is extremely limited, in order to obtain big visual field,
Multiple sensors will often be increased.Consequently, it is possible to cost increases many, furthermore in order to the image that multiple sensors are obtained is melted
Panoramic picture is synthesized, multiple splicing is needed, its complexity is big, also relatively time consuming, tends not to reach the effect of monitor in real time,
Its function is made to have a greatly reduced quality.
Therefore, exploitation is a kind of can overcome the full shot of disadvantages mentioned above imperative.Existing full shot is generally included
Extrawide angle lens, multiple optical lenses and image sensor along same optical axis arrangement, optical lens and extrawide angle lens are obtained respectively
Front and around 360 degree of ring fields of optical lens optical axis panoramic rays, CIS can receive from extrawide angle lens with
And the light formation panoramic picture that imaging len is incident.The present invention develops one kind by the optimization and upgrading to existing full shot
The omnidirectional imaging system that high definition is imaged can be realized.
The content of the invention
It is an object of the invention to provide a kind of aspherical refractive and reflective panorama imaging lens, to realize full visual angle ultra-wide angle high definition
Imaging, and compact conformation, compact, the effect that is easily installed.
Technical scheme is as follows：
A kind of aspherical refractive and reflective panorama imaging lens, including ball cover, catadioptric microscope group, iris diaphgram and relaying microscope group
It is arranged in order；Wherein, catadioptric microscope group have it is coaxially arranged and along catadioptric microscope group to relay lens prescription to the folding being arranged in order
The first lens (21) and the lens of catadioptric second (22) are reflected, the lens of catadioptric first (21) and the lens of catadioptric second (22) are logical
Cross joint face connection；The lens of catadioptric first (21) is with first refractive face (12) and the second interior reflective surface (14), first refractive
Face (12) for clear aperture 25-119mm spherical convex surface, away from joint face distance be 30mm；Second interior reflective surface (14) is thang-kng
The spherical concave surface of bore 25mm, is 27.6mm away from joint face distance；In the center inner annular edge and second in first refractive face (12)
The outer shroud side edge of reflecting surface (14)；The lens of catadioptric second (22) is with the first interior reflective surface (13) and the second plane of refraction
(16)；First interior reflective surface (13) for clear aperture 21-72mm spherical concave surface, away from joint face distance be 40mm；Second refraction
Face (16) is plane, is 38.8mm away from joint face distance；The inner annular edge and the second plane of refraction (16) of the first interior reflective surface (13)
Outer shroud side edge.
Further, the joint face is plane.
Further, microscope group is relayed coaxially arranged with catadioptric microscope group.
Further, relay microscope group to be made up of 10 lens；Respectively the first lens, the second lens, the 3rd lens, the 4th
Lens, the 5th lens, the 6th lens, the 7th lens, the 8th lens, the 9th lens and the tenth lens.
Further, the first lens include 2 planes of refraction, are aspherical concave surface near catadioptric microscope group direction plane of refraction.
Further, the 3rd lens are brought into close contact vertically with the 4th lens, gapless.
Further, the 6th lens are brought into close contact vertically with the 7th lens, gapless.
Further, the 9th lens are brought into close contact vertically with the tenth lens, gapless.
Further, the second lens, the 4th lens, the 5th lens, the 7th lens and the 9th lens material are ED
Material.Hinge structure of the present invention has the advantage that and has the beneficial effect that：
1) aspherical refractive and reflective panorama imaging lens provide appropriate angle enlargement ratio to expand visual field.It is mainly simultaneous during design
The requirement of system focal and physical dimension is turned round and look at, under the premise of each visual field light path is explicit aberration correction is carried out.
2) visual field of the invention and aperture are all very big, and longer back work distance is from the installing space that ensure that other parts.
Image space chief ray and optical axis included angle very little, it is ensured that image illumination uniformity.
3) processability of product structure of lens is good, is conducive to processing and reduces cost.
4) catadioptric microscope group employs lens group, can undertake bigger vertical field of view and relative aperture.
Description of the drawings
Accompanying drawing 1 is aspherical refractive and reflective panorama imaging lens structural representation of the invention.
Accompanying drawing 2 is aspherical refractive and reflective panorama imaging lens light path schematic diagram of the invention.
Wherein, the lens of 1- first, the lens of 2- second, the lens of 3- the 3rd, the lens of 4- the 4th, the lens of 5- the 5th, 6- the 6th is saturating
Mirror, 7 the 7th lens, the lens of 8- the 8th, the lens of 9- the 9th, the lens of 10- the tenth, 11- image planes, 12- first refractives face, 13- first
Interior reflective surface, the interior reflective surfaces of 14- second, 15- joint faces, the planes of refraction of 16- second, 17- iris diaphgrams, 21- catadioptrics first are saturating
Mirror, the lens of 22- catadioptrics second.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, following examples contribute to the understanding of the present invention,
It is reasonable application example, but is not construed as limiting thereof.
As shown in figure 1, the present invention is aspherical refractive and reflective panorama imaging lens.Including catadioptric microscope group, iris diaphgram and
Relaying microscope group is arranged in order；Wherein, catadioptric microscope group have it is coaxially arranged and along catadioptric microscope group to relay lens prescription to successively
First lens of catadioptric 21 and the second lens of catadioptric 22 of arrangement, the first lens of catadioptric 21 and the second lens of catadioptric 22 lead to
Cross joint face connection.Relaying microscope group is made up of 8 lens.
The first lens of catadioptric 21 have the interior reflective surface 14 of first refractive face 12 and second, and first refractive face 12 is light admission port
The spherical convex surface of footpath 25-119mm, is 30mm away from joint face distance；Second interior reflective surface 14 is the spherical female of clear aperture 25mm
Face, is 27.6mm away from joint face distance；The second lens of catadioptric 22 have the first interior reflective surface 13 and the second plane of refraction 16；First
Interior reflective surface 13 is the spherical concave surface of clear aperture 21-72mm, is 40mm away from joint face distance；Second plane of refraction 16 is plane,
It is 38.8mm away from joint face distance.The outer shroud side edge of the inner annular edge of the first interior reflective surface and the second plane of refraction.
Aspherical refractive and reflective panorama imaging lens provide appropriate angle enlargement ratio to expand visual field.This optical system optics
Visual field is ± 30 ° to ± 90 °, and focal length is 3mm.The requirement of system focal and physical dimension is mainly taken into account during design, in each visual field
Aberration correction is carried out under the premise of light path is explicit.Catadioptric microscope group does not carry out independent school aberration design, but allows system
Retain a certain amount of positive curvature of field, so as to be conducive to the aberration balancing of whole panorama system.Relay lens is an object lens of large relative aperture, in
Deng the optical system of visual field, strong is acted on to convergence of rays, easily produce the negative curvature of field, can be with the positive curvature of field of speculum group remnants
Balance.Meanwhile, veneer type refractive and reflective panorama imaging lens belong to big aberration system, are to reduce the senior amount of each aberration, and should try one's best control
Primary aberration processed.
As shown in figure 1, detector is arranged at image planes receives optical imagery.
Relaying microscope group is coaxially arranged with catadioptric microscope group.10 lens are respectively the first lens 1 in relaying microscope group, and second is saturating
Mirror 2, the 3rd lens 3, the 4th lens 4, the 5th lens 5, the 6th lens 6, the 7th lens 7, the 8th lens 8, the 9th lens 9 and
Ten lens 10.The effect of transmission-type relay lens is the virtual image formed by speculum group to be imaged onto in image planes with appropriate multiplying power.Protect
Card pupil matching, and optical aberration is corrected into certain state mutually to balance with catadioptric microscope group aberration.In addition, in
After microscope group compact conformation, should not separate too far between lens.Although front group of ray height is bigger, it is burnt that rear group has undertaken part light
Degree, is entered interpupillary distance and is limited by system, and front group is not suitable for being re-introduced into negative power.
Specifically arrangement is as follows for relaying microscope group, and design parameter is shown in Table 1.
First lens 1 are with iris diaphgram at intervals of 6.45mm.The thickness of first lens 1 is 11.4mm.First lens 1 include 2
Individual plane of refraction, is aspherical concave surface near catadioptric microscope group direction plane of refraction, and clear aperture is 22mm；Another plane of refraction is spherical
Concave surface, clear aperture is 29.2mm.
Second lens 2 and the first lens 1 are at intervals of 0.2mm.The thickness of second lens 2 is 12.95mm.Second lens 2 include 2
Individual plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 30.1mm；Another plane of refraction is sphere, is led to
Light bore is 33.3mm.
3rd lens 3 and the second lens 2 are at intervals of 1.4mm.The thickness of 3rd lens 3 is 4.5mm.3rd lens 3 include 2
Plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 33.2mm；Another plane of refraction is sphere.
4th lens 4 and the 3rd lens 3 are without interval.The thickness of 4th lens 4 is 17.8mm.4th lens 4 include 2 refractions
Face, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 45.6mm；Another plane of refraction be sphere, clear aperture
For 50mm.
5th lens 5 and the 4th lens 4 are at intervals of 0.2mm.The thickness of 5th lens 5 is 18.16mm.5th lens 5 include 2
Individual plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 59.5mm；Another plane of refraction is sphere, is led to
Light bore is 60.7mm.
6th lens 6 and the 5th lens 5 are at intervals of 0.2mm.The thickness of 6th lens 6 is 4.4mm.6th lens 6 include 2
Plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 58.6mm；Another plane of refraction be sphere, thang-kng
Bore is 54mm.
7th lens 7 and the 6th lens 6 are at intervals of 0.The thickness of 7th lens 7 is 18.16mm.7th lens 7 include 2 foldings
Face is penetrated, is sphere near catadioptric microscope group direction plane of refraction, clear aperture is 54mm；Another plane of refraction be sphere, clear aperture
For 52.9mm.
8th lens 8 and the 7th lens 7 are at intervals of 0.2mm.The thickness of 8th lens 8 is 9.67mm.8th lens 8 include 2
Individual plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 48.8mm；Another plane of refraction is sphere, is led to
Light bore is 45.9mm.
9th lens 9 and the 8th lens 8 are at intervals of 0.2mm.The thickness of 9th lens 9 is 12.57mm.9th lens 9 include 2
Individual plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 35.6mm；Another plane of refraction is sphere, is led to
Light bore is 28.8mm.
Tenth lens 10 and the 9th lens 9 are at intervals of 0.The thickness of tenth lens 10 is 3.58mm.Tenth lens 10 include 2
Plane of refraction, is sphere near catadioptric microscope group direction plane of refraction, and clear aperture is 28.8mm；Another plane of refraction be sphere, thang-kng
Bore is 20.8mm.
With image planes at intervals of 16.5mm, clear aperture is 9.6mm to tenth lens 10.
The resolution capability of image space 200 lines it is right/more than mm, the resolution capability without space is more than 1.4 jiaos points.
The aspherical refractive and reflective panorama imaging lens optical data of table 1
In another preferred embodiment of the present, joint face described in catadioptric microscope group is plane.
In another preferred embodiment of the present, the first interior reflective surface 13 and the plating high-reflecting film of the second interior reflective surface 14.First refractive
Face 12, the plating anti-reflection film of the second plane of refraction 16.
In another preferred embodiment of the present, the second lens, the 4th lens, the 5th lens, the 7th lens and the 9th lens material
Expect for ED material.
The invention is not limited in any way for above-described embodiment, all analog structure, methods and its similar using the present invention
The technical scheme that variation pattern is obtained, all falls within protection scope of the present invention.
Claims (9)
1. a kind of aspherical refractive and reflective panorama imaging lens, including ball cover, catadioptric microscope group, iris diaphgram and relaying microscope group according to
Secondary arrangement；Wherein, catadioptric microscope group has coaxially arranged and catadioptric to what is be arranged in order along catadioptric microscope group to relay lens prescription
The first lens (21) and the lens of catadioptric second (22) are penetrated, the lens of catadioptric first (21) and the lens of catadioptric second (22) pass through
Joint face connects；The lens of catadioptric first (21) is with first refractive face (12) and the second interior reflective surface (14), first refractive face
(12) it is the spherical convex surface of clear aperture 25-119mm, is 30mm away from joint face distance；Second interior reflective surface (14) is light admission port
The spherical concave surface of footpath 25mm, is 27.6mm away from joint face distance；It is anti-in the center inner annular edge and second in first refractive face (12)
Penetrate the outer shroud side edge in face (14)；The lens of catadioptric second (22) is with the first interior reflective surface (13) and the second plane of refraction
(16)；First interior reflective surface (13) for clear aperture 21-72mm spherical concave surface, away from joint face distance be 40mm；Second refraction
Face (16) is plane, is 38.8mm away from joint face distance；The inner annular edge and the second plane of refraction (16) of the first interior reflective surface (13)
Outer shroud side edge.
2. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 1, it is characterised in that the joint face is flat
Face.
3. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 1 or 2, it is characterised in that relaying microscope group with
Catadioptric microscope group is coaxially arranged.
4. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 1 or 2, it is characterised in that relaying microscope group by
10 lens compositions；Respectively the first lens, the second lens, the 3rd lens, the 4th lens, the 5th lens, the 6th lens, the 7th
Lens, the 8th lens, the 9th lens and the tenth lens.
5. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 4, it is characterised in that the first lens include 2
Individual plane of refraction, is aspherical concave surface near catadioptric microscope group direction plane of refraction.
6. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 4, it is characterised in that the 3rd lens with
4th lens are brought into close contact vertically, gapless.
7. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 6, it is characterised in that the 6th lens with
7th lens are brought into close contact vertically, gapless.
8. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 7, it is characterised in that the 9th lens with
Tenth lens are brought into close contact vertically, gapless.
9. a kind of veneer type refractive and reflective panorama imaging lens as claimed in claim 4, it is characterised in that the second lens, the 4th
Lens, the 5th lens, the 7th lens and the 9th lens material are ED material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710063872.6A CN106646831B (en) | 2017-01-19 | 2017-01-19 | A kind of aspherical refractive and reflective panorama imaging lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710063872.6A CN106646831B (en) | 2017-01-19 | 2017-01-19 | A kind of aspherical refractive and reflective panorama imaging lens |
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| CN106646831A true CN106646831A (en) | 2017-05-10 |
| CN106646831B CN106646831B (en) | 2019-01-15 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638590A (en) * | 2019-03-01 | 2020-09-08 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
| CN111638589A (en) * | 2019-03-01 | 2020-09-08 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
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| US5473474A (en) * | 1993-07-16 | 1995-12-05 | National Research Council Of Canada | Panoramic lens |
| CN201041596Y (en) * | 2007-04-24 | 2008-03-26 | 浙江大学 | A multi-slice panoramic sweeping imaging lens |
| US20130057971A1 (en) * | 2011-09-01 | 2013-03-07 | Samsung Electronics Co., Ltd. | Panoramic imaging lens and panoramic imaging system using the same |
| CN103969800A (en) * | 2014-03-26 | 2014-08-06 | 中国计量学院 | Long-focus type panoramic annular imaging lens |
| CN203981961U (en) * | 2014-07-07 | 2014-12-03 | 长春方圆光电技术有限责任公司 | 360 degree are looked around image capturing system |
| CN105116521A (en) * | 2015-08-20 | 2015-12-02 | 上海臻恒光电***有限公司 | Panoramic camera based on double-sphere two-reflection ultra large field of view |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473474A (en) * | 1993-07-16 | 1995-12-05 | National Research Council Of Canada | Panoramic lens |
| CN201041596Y (en) * | 2007-04-24 | 2008-03-26 | 浙江大学 | A multi-slice panoramic sweeping imaging lens |
| US20130057971A1 (en) * | 2011-09-01 | 2013-03-07 | Samsung Electronics Co., Ltd. | Panoramic imaging lens and panoramic imaging system using the same |
| CN103969800A (en) * | 2014-03-26 | 2014-08-06 | 中国计量学院 | Long-focus type panoramic annular imaging lens |
| CN203981961U (en) * | 2014-07-07 | 2014-12-03 | 长春方圆光电技术有限责任公司 | 360 degree are looked around image capturing system |
| CN105116521A (en) * | 2015-08-20 | 2015-12-02 | 上海臻恒光电***有限公司 | Panoramic camera based on double-sphere two-reflection ultra large field of view |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111638590A (en) * | 2019-03-01 | 2020-09-08 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
| CN111638589A (en) * | 2019-03-01 | 2020-09-08 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
| CN111638589B (en) * | 2019-03-01 | 2022-04-22 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
| CN111638590B (en) * | 2019-03-01 | 2022-04-26 | 精工爱普生株式会社 | Projection optical system, projection type image display device, and imaging device |
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| Publication number | Publication date |
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| CN106646831B (en) | 2019-01-15 |
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