CN207198447U - Panoramic imaging lens - Google Patents
Panoramic imaging lens Download PDFInfo
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- CN207198447U CN207198447U CN201721250207.XU CN201721250207U CN207198447U CN 207198447 U CN207198447 U CN 207198447U CN 201721250207 U CN201721250207 U CN 201721250207U CN 207198447 U CN207198447 U CN 207198447U
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- lens
- reflecting surface
- transmission plane
- panoramic imaging
- optical element
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Abstract
The utility model provides a kind of panoramic imaging lens, including catadioptric optical element, relay system, diaphragm and image planes, catadioptric optical element and relay system share same optical axis, catadioptric optical element includes the first transmission plane, the first reflecting surface, the second reflecting surface and the second transmission plane, light transmission channel is formed between first transmission plane, the first reflecting surface, the second reflecting surface, the second transmission plane and relay system, the first transmission plane and the first reflecting surface are located at the same side of optical axis.Panoramic imaging lens of the present utility model, the first transmission plane and the first reflecting surface of catadioptric optical element are arranged at the same side of optical axis, are easy to the design of follow-up relay system, compact-sized, reduce processing cost.
Description
Technical field
Optical image technology field is the utility model is related to, especially, is related to a kind of panoramic imaging lens.
Background technology
Panoramic imaging techniques are originating from the demand that the eighties, U.S. Department of Defense detected to the round-the-clock military target of big visual field, mesh
It is preceding except military field, it overall view monitoring, machine vision, it is medical in peep with numerous areas such as pipe detections have it is important
Using.Panoramic imaging techniques mainly have fish eye lens method, rotary splicing method, the imaging of single refractive and reflective panorama and refraction-reflection panorama
These four types of annular imaging, wherein refraction-reflection Panoramic annular imaging system are high, compact-sized, miniaturization due to integrated level
Feature and there is very big application advantage.
Refraction-reflection Panoramic annular imaging camera lens is segmented into two parts：First, the catadioptric optics member of rotational symmetry
Part, part surface are coated with reflectance coating, realize conversion of the three-dimensional panorama visual field to two-dimentional ring belt plane；Second, image transfer lens, it will
The virtual image that catadioptric optical element is formed is converted into real image.Existing refraction-reflection Panoramic annular imaging system light path such as Fig. 1 institutes
Show, light enters catadioptric optical element from the first transmission plane, reaches the first reflecting surface, second is reached after the first reflective surface
Reflecting surface, then the second transmission plane is reached after the second reflective surface, light is from catadioptric optical element after the second transmission plane
Outgoing, after image transfer lens, is imaged on image planes detector, the first transmission plane of this refraction-reflection Panoramic annular imaging camera lens
Be located at optical axis both sides respectively with the first reflecting surface, and the lens numbers that image transfer lens include are more, be unfavorable for camera lens miniaturization,
Cost degradation.
Utility model content
Based on this, it is necessary to provide a kind of miniaturization, the panoramic imaging lens of low cost.
The utility model solves its technical problem technical scheme to be taken：A kind of panoramic imaging lens, including folding
Reflective optical devices, relay system, diaphragm and image planes, the catadioptric optical element and the relay system share same light
Axle, the catadioptric optical element include the first transmission plane, the first reflecting surface, the second reflecting surface and the second transmission plane, and described
Light is formed between one transmission plane, first reflecting surface, second reflecting surface, second transmission plane and the relay system
Line transmission channel, first transmission plane and first reflecting surface are located at the same side of optical axis.
Further, the relay system includes the first lens, the second lens and the 3rd lens set gradually from thing side.
Further, first lens are concave-convex lens, first lens convex surface facing image side surface.
Further, second lens are cemented doublet, and second lens are by biconvex lens and concave-convex lens glue
Close and form.
Further, the 3rd lens are biconvex lens.
Further, the diaphragm is located at the concave surface of first lens.
The beneficial effects of the utility model are：Panoramic imaging lens of the present utility model, the first of catadioptric optical element
Transmission plane and the first reflecting surface are arranged at the same side of optical axis, are easy to the design of follow-up relay system, it is compact-sized, reduce plus
Work cost.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is existing panoramic imaging lens structural representation；
Fig. 2 is panoramic imaging lens structural representation of the present utility model；
Fig. 3 is the light path schematic diagram of panoramic imaging lens of the present utility model.
Parts title and its numbering are respectively in figure：
1st, catadioptric optical element；2nd, relay system；3rd, diaphragm；4th, image planes；11st, the first transmission plane；12nd, the first reflection
Face；13rd, the second reflecting surface；14th, the second transmission plane；21st, the first lens；22nd, the second lens；23rd, the 3rd lens.
Embodiment
The utility model is described in detail presently in connection with accompanying drawing.This figure is simplified schematic diagram, only in a schematic way
Illustrate basic structure of the present utility model, therefore it only shows the composition relevant with the utility model.
As shown in Fig. 2 the utility model provides a kind of panoramic imaging lens, including set gradually from thing side catadioptric
Penetrate optical element 1, diaphragm 3, relay system 2 and image planes 4.
Catadioptric optical element 1 and relay system 2 share same optical axis, and catadioptric optical element 1 includes the first transmission plane
11st, the first reflecting surface 12, the second reflecting surface 13 and the second transmission plane 14, the first transmission plane 11, the reflection of the first reflecting surface 12, second
Light transmission channel, the first transmission plane 11 and the first reflecting surface 12 are formed between face 13, the second transmission plane 14 and relay system 2
In the same side of optical axis.First speculum and the second speculum are formed by the reflectance coating for being plated in catadioptric optical element surface respectively.
Relay system 2 includes the first lens 21, the second lens 22 and the 3rd lens 23 set gradually from thing side.
Wherein, the first lens 21 are concave-convex lens, the first lens 21 convex surface facing image side surface.Diaphragm 3 is saturating positioned at first
The concave surface of mirror 21.
Second lens 22 are cemented doublet, and the second lens 22 are made up of biconvex lens and concave-convex lens gluing.
3rd lens 23 are biconvex lens.
As shown in figure 3, for the light propagation path of panoramic imaging lens, its operation principle is：Light is from the first transmission plane
11 enter catadioptric optical element 1, and deviation occurs after the refraction of the first transmission plane 11, and the first reflecting surface is reached along straightline propagation
12, after being reflected by the first reflecting surface 12, continue to drill straightline propagation the second reflecting surface 13 of arrival, after being reflected by the second reflecting surface 13,
The second transmission plane 14 is reached along straightline propagation again, deviation occurs after the refraction of the second transmission plane 14, by entering image rotation after diaphragm 3
System 2, eventually arrive at image planes 4.
As shown in table 1, for panoramic imaging lens of the present utility model each piece of lens design parameter value, wherein " sequence
Number " column gives sequence number along each surface of optical axis direction；" radius " one column gives the sphere half corresponding to each surface
Footpath；" thickness/spacing " column gives the axial distance between adjacent surface, thick if two surface belongs to same lens
Angle value represents the lens thickness, otherwise expression thing/image planes to spacing between lens distance or adjacent lens；" semiaperture " one column provides
1/2 aperture value on corresponding surface.
By taking catadioptric optical element 1 as an example, the first transmission plane 11 of catadioptric optical element 1 is serial number 1 in table 1
Surface, it is known that the spherical radius of the first transmission plane 11 and semiaperture are respectively 27.9mm and 23mm, and the first reflecting surface 12 is in table 1
It is the surface of serial number 3, it is known that the spherical radius of the first reflecting surface 12 and semiaperture are respectively 10.6mm and 6.15mm, and first is saturating
The distance i.e. center thickness of catadioptric optical element 1 for penetrating the reflecting surface of face 11 to the first 12 is 12.7mm, and the second reflecting surface 13 exists
It is the surface of serial number 5 in table 1, it is known that the spherical radius of the second reflecting surface 13 and semiaperture are respectively 147mm and 3.48mm, and
One reflecting surface 12 is away from the second reflecting surface 13 apart from for 12.3mm.
Each lens design parameters of the panoramic imaging lens of table 1
Using it is above-mentioned according to desirable embodiment of the present utility model as enlightenment, by above-mentioned description, related work
Personnel can carry out various changes and amendments in without departing from the scope of the utility model completely.This item utility model
Technical scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (6)
- A kind of 1. panoramic imaging lens, it is characterised in that：It is described including catadioptric optical element, relay system, diaphragm and image planes Catadioptric optical element and the relay system share same optical axis, and the catadioptric optical element includes the first transmission plane, the One reflecting surface, the second reflecting surface and the second transmission plane, first transmission plane, first reflecting surface, second reflecting surface, Light transmission channel, first transmission plane and first reflection are formed between second transmission plane and the relay system Face is located at the same side of optical axis.
- 2. panoramic imaging lens as claimed in claim 1, it is characterised in that：The relay system includes setting gradually from thing side The first lens, the second lens and the 3rd lens.
- 3. panoramic imaging lens as claimed in claim 2, it is characterised in that：First lens are concave-convex lens, described One lens convex surface facing image side surface.
- 4. panoramic imaging lens as claimed in claim 3, it is characterised in that：Second lens are cemented doublet, described Second lens are made up of biconvex lens and concave-convex lens gluing.
- 5. panoramic imaging lens as claimed in claim 4, it is characterised in that：3rd lens are biconvex lens.
- 6. panoramic imaging lens as claimed in claim 3, it is characterised in that：The diaphragm is located at the recessed of first lens Face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250207.XU CN207198447U (en) | 2017-09-27 | 2017-09-27 | Panoramic imaging lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721250207.XU CN207198447U (en) | 2017-09-27 | 2017-09-27 | Panoramic imaging lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207198447U true CN207198447U (en) | 2018-04-06 |
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ID=61787180
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721250207.XU Active CN207198447U (en) | 2017-09-27 | 2017-09-27 | Panoramic imaging lens |
Country Status (1)
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| CN (1) | CN207198447U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780514A (en) * | 2018-07-27 | 2020-02-11 | 精工爱普生株式会社 | Lens and projection type image display device |
| CN113009679A (en) * | 2019-12-20 | 2021-06-22 | 长春理工大学 | Panoramic imaging optical system |
| CN114967072A (en) * | 2022-06-10 | 2022-08-30 | 浙江大学 | Three-piece type near-infrared panoramic annular lens |
| CN115097607A (en) * | 2022-08-26 | 2022-09-23 | 杭州环峻科技有限公司 | Panoramic annular optical system |
-
2017
- 2017-09-27 CN CN201721250207.XU patent/CN207198447U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780514A (en) * | 2018-07-27 | 2020-02-11 | 精工爱普生株式会社 | Lens and projection type image display device |
| CN110780514B (en) * | 2018-07-27 | 2021-08-24 | 精工爱普生株式会社 | Lens and projection type image display device |
| CN113009679A (en) * | 2019-12-20 | 2021-06-22 | 长春理工大学 | Panoramic imaging optical system |
| CN114967072A (en) * | 2022-06-10 | 2022-08-30 | 浙江大学 | Three-piece type near-infrared panoramic annular lens |
| CN115097607A (en) * | 2022-08-26 | 2022-09-23 | 杭州环峻科技有限公司 | Panoramic annular optical system |
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