CN204044421U - A kind of focal length type Panoramic annular imaging camera lens - Google Patents
A kind of focal length type Panoramic annular imaging camera lens Download PDFInfo
- Publication number
- CN204044421U CN204044421U CN201420147189.2U CN201420147189U CN204044421U CN 204044421 U CN204044421 U CN 204044421U CN 201420147189 U CN201420147189 U CN 201420147189U CN 204044421 U CN204044421 U CN 204044421U
- Authority
- CN
- China
- Prior art keywords
- lens
- imaging system
- hemispheric
- group
- panoramic
- 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.)
- Expired - Fee Related
Links
Landscapes
- Stereoscopic And Panoramic Photography (AREA)
- Lenses (AREA)
Abstract
The utility model provides a kind of focal length type Panoramic annular imaging camera lens.It is made up of ten a slice spherical lenses altogether, comprises Hemispheric panoramic imaging system group and image rotation lenses group.Hemispheric panoramic imaging system group comprises coaxial and from the first lens, the second lens and the 3rd lens that object space to image space is arranged in order, adopts three special gummed Hemispheric panoramic imaging system structures; Image rotation lenses group is made up of eight lens, wherein containing diverging meniscus lens, the first positive lens, two cemented doublets.This focal length type Panoramic annular imaging camera lens meets f-θ object-image relation, has the features such as high resolving power, ultra-large vision field (horizontal direction 360 °, vertical direction 60 °) and good image quality; The glass simultaneously adopted is common optical glass, not containing special glass and calcium fluoride; Lens construction manufacturability is good, is conducive to processing and reduces costs.
Description
Technical field
The utility model belongs to optical imaging lens technical field, relate to a kind of focal length type Panoramic annular imaging camera lens, particularly one and there is high resolving power, (40 °-100 °) × ultra-large vision field of 360 ° and the focal length type panoramic annular lens of good image quality.
Background technology
At present, existing wide-angle image camera lens cannot meet the requirement of 360 ° of comprehensive acquisition target informations.Early stage panoramic imagery is substantially all realize by rotary splicing method.Rotary splicing method comprises single-lens rotating scan imaging and many camera lenses staring imaging two kinds of forms.Single-lens rotating scan imaging refers to and carries out panoramic scanning by adopting single common optical lens to rotate a circle around the mechanical axis perpendicular to optical axis, then carries out seamless splicing by image mosaic software and obtain panoramic picture.But there is a scan period in single-lens rotating scan imaging, real-time is poor.Many camera lenses staring imaging adopts many identical optical lens to carry out static state shooting in each orientation of one week, the image obtained carried out sequence assembly to obtain panoramic picture.Although many camera lenses staring imaging is static shooting, real-time is relatively high, huger, and cost is too high, is unfavorable for that large-scale popularization is applied.Fish-eye visual field generally can reach hemisphere, even exceedes hemisphere.This camera lens is a kind of camera lens that in traditional photography camera lens, visual field is maximum, the anti-long distance structure that its structure still adopts wide-angle lens often to use, comprise front group of negative power and rear group of two parts of positive light coke, but its front group and rear group more complicated than common wide-angle lens a lot, system difficulty is large.There is very large barrel distortion in the picture obtained with fish eye lens, more obvious the closer to marginal distortion.Single reflecting surface panorama unroll adds a catoptron and realizes panoramic imagery, the face type demand fulfillment single view requirement of the catoptron of this imaging technique before camera.The processing of catoptron and installation are its technological difficulties, the oversize shortcoming being system and existing.And Hemispheric panoramic imaging system imaging is employing one, and more special Hemispheric panoramic imaging system structure realizes panoramic imagery, it is very little that its compact conformation, integrated level are high, size can be done.
At present the resolution of the Hemispheric panoramic imaging system imaging system in a lot of field is all lower, and when realizing panoramic imagery, resolution is the very important optical performance parameter of of imaging system.High-resolution needs long-focus, and system has high resolving power just can the farther and less object of decipherment distance.In some high-resolution occasions such as distant view monitoring, long-range target acquisitions, we need to utilize focal length type Hemispheric panoramic imaging system imaging arrangement.
In first technology, a kind of panoramic imaging lens (see " a kind of panoramic imaging lens " patent No.: CN201110413581.8) is had to have suitable advantage.But there is essence not enough: first refractive face and first reflecting surface of (1) Hemispheric panoramic imaging system are free form surface, difficulty of processing is larger compared with sphere, the PMMA engineering plastics thermal expansivity of employing is large, and skin hardness is poor, is easy to scratch; (2) the first surface radius-of-curvature of last block lens is smaller, and off-axis ray enters lens with larger incident angle, and too much luminous energy is lost, and reduces the illumination of image planes, is unfavorable for the raising of image quality.In addition, last block lens are similar to plano-convex lens, and Thickness Ratio is comparatively large, adds weight and the cost of camera lens; (3) relative aperture of panoramic imaging lens and vertical field of view all less, optical property needs to improve further; (4) back work distance of system is from short, is unfavorable for the installation of cover glass, optical filter and other physical construction.
Utility model content
The utility model, in order to solve the problem existing for prior art, provides a kind of focal length type Panoramic annular imaging camera lens, has that resolution is high, visual field is large, relative aperture is large, back work distance is from the feature such as long; The glass simultaneously adopted is common optical glass, not fluorinated calcium and special glass; Lens construction manufacturability is good, is conducive to processing and reduces costs.
Basic conception of the present utility model: in order to expand visual field and the aperture of Panoramic annular imaging camera lens, the basis of one chip Hemispheric panoramic imaging system adds cemented surface, and form three gummed Hemispheric panoramic imaging system groups at the block of surface glue unification thereafter plano-convex lens, adopt F2, ZK7 and LAF3 tri-kinds of glass mates, more fully reduced the aberration of lens combination by curved lens.In image rotation lenses group, introduce two cemented doublets, the cemented surface that two differences bend towards is used for correcting the senior astigmatism of whole camera lens and senior oblique spherical aberration respectively.The each power of lens of reasonable distribution image rotation lenses group, makes light beam all incident with low-angle at lens surface.Adjust image rotation lenses group principal plane locations by touching positive lens after diverging meniscus lens, make camera lens approximate meet telecentric structure to improve image illumination uniformity and increase back work distance from.
Based on above technical matters, the technical scheme that the utility model adopts is: a kind of focal length type Panoramic annular imaging camera lens that the utility model provides, and is made up of altogether, comprises Hemispheric panoramic imaging system group and image rotation lenses group ten a slice spherical lenses.Hemispheric panoramic imaging system group comprises coaxially and the first lens, the second lens and the 3rd lens that are arranged in order from object space to image space; Hemispheric panoramic imaging system group has six faces, and be sphere, comprising the first refractive face of object space dorsad, towards the first interior reflective surface of object space, the first cemented surface of object space dorsad, towards the second interior reflective surface of object space, face type is the second cemented surface of plane, towards the second plane of refraction of object space, the center inner annular edge in first refractive face and the outer shroud side edge of the first interior reflective surface, the center inner annular edge of the second interior reflective surface and the outer shroud side edge of the second cemented surface.First interior reflective surface and the second interior reflective surface plating high-reflecting film, first refractive face and the second plane of refraction plating anti-reflection film.Image rotation lenses group is formed by around rotational symmetric eight lens of optical axis, and containing diverging meniscus lens and the first positive lens, wherein the second positive lens, the first negative lens glue together mutually, and the second negative lens, the 3rd positive lens glue together mutually.
Described focal length type Panoramic annular imaging camera lens, it is characterized in that described Hemispheric panoramic imaging system group adopts three gummed Hemispheric panoramic imaging system structures, namely plane is made in the rear surface of monolithic Hemispheric panoramic imaging system, insert a cemented surface in centre, then glue together a plano-convex lens in rear surface and formed.
First cemented surface of Hemispheric panoramic imaging system group bends towards diaphragm, is mainly used to correct chromatic longitudiinal aberration; Second cemented surface is plane, convenient processing; Second plane of refraction is mainly used to the astigmatism and the curvature of field that correct Hemispheric panoramic imaging system group.This Hemispheric panoramic imaging system group has two interior reflective surface regions, first interior reflective surface is positioned at the central area of the first lens left surface, second interior reflective surface is positioned at the non-central region on the second right surface of lens, wherein the first interior reflective surface and the second interior reflective surface plating high-reflecting film, first refractive face and the second plane of refraction plating anti-reflection film.Diaphragm is between Hemispheric panoramic imaging system group and image rotation lenses group.Image rotation lenses group is made up of eight lens, wherein containing diverging meniscus lens, the first positive lens and two cemented doublets.First positive lens in order to reduce chief ray incident angle, increase back work distance from.Longer back work distance is from the installing space that ensure that other part.Image planes adopt CCD acceptance pattern picture.Hemispheric panoramic imaging system group adopts three special gummed Hemispheric panoramic imaging system structures, adds the aberration correction degree of freedom of Hemispheric panoramic imaging system, is more conducive to compensating the aberration between image rotation lenses group.
The service band of the utility model system is visible ray, as shown in table 1, and focal length is 8mm, system relative aperture is 3.2, field range is (40 °-100 °) × 360 °, and system first surface is 141.55mm to image planes distance and optics overall length, and back work distance is from being 26.292mm.The visual field of the utility model imaging system and aperture are all very large, and longer back work distance is from the installing space that ensure that other part.The light path of system is accurate telecentric beam path, and image space chief ray and optical axis included angle are very little, ensure that image illumination uniformity.
The advantage that the utility model hinge structure has and beneficial effect are:
1) all lens of the utility model are spherical lens, only adopt F2, ZF6, ZK7, LAF3, LAF4 five kinds of glass, and not containing fluorite, processability of product structure is good, is conducive to processing and reduces costs.
2) the utility model have employed three gummed Hemispheric panoramic imaging system groups, substantially reduces aberration, astigmatism and the curvature of field, can bear larger vertical field of view and relative aperture.
3) the utility model image rotation lenses group adopts two light groups, and focal power meets negative positive and negative positive distribution principle, and light is all incident with low-angle in each air surface, thus reduces optical energy loss, improves illuminance of image plane, reaches better image quality.
4) the utility model touches the first positive lens after diverging meniscus lens, and move after making image rotation lenses group interarea, system approximation meets telecentric beam path in image space, increase back work distance from and improve image illumination uniformity.
5) the utility model can be monitored at distant view, the field such as military target detection is applied.
Accompanying drawing explanation
Fig. 1 is the utility model focal length type Panoramic annular imaging lens construction schematic diagram;
Fig. 2 is the structural representation of the utility model Hemispheric panoramic imaging system group;
Fig. 3 is the structural representation of the utility model image rotation lenses group;
Fig. 4 is the imaging optical path figure of the utility model focal length type Panoramic annular imaging lens imaging system;
Fig. 5 is the utility model focal length type Panoramic annular imaging lens imaging system transter curve map;
Fig. 6 is the point range figure of the utility model focal length type Panoramic annular imaging lens imaging system;
Fig. 7 is the curvature of field and the f-θ distortion curve figure of the utility model focal length type Panoramic annular imaging lens imaging system;
Fig. 8 is the image planes relative exposure curve map of the utility model focal length type Panoramic annular imaging lens imaging system;
Fig. 9 is the utility model focal length type Panoramic annular imaging lens imaging system chromatic longitudiinal aberration figure.
Embodiment
Be described in further detail the utility model below in conjunction with accompanying drawing, following examples contribute to understanding of the present utility model, are reasonable application examples, but should not regard as restriction of the present utility model.
As shown in Figure 1, the utility model is a kind of focal length type Panoramic annular imaging camera lens, comprises Hemispheric panoramic imaging system group a and image rotation lenses group b.Hemispheric panoramic imaging system group a comprises coaxial and the first lens 1, second lens 2 be arranged in order from object space to image space and the 3rd lens 3.Hemispheric panoramic imaging system group a adopts three special gummed Hemispheric panoramic imaging system structures.Image rotation lenses group b comprises eight lens, wherein containing diverging meniscus lens 11, first positive lens 12, two cemented doublets.
Diaphragm 4 is between Hemispheric panoramic imaging system group a and image rotation lenses group b, and for controlling the imaging beam bore of Hemispheric panoramic imaging system group a, make the light of participation imaging enter image rotation lenses group b, the part light not participating in imaging is kept off outside by diaphragm 4.
As shown in Figure 2, Hemispheric panoramic imaging system group a has six faces, and be sphere, comprising the first refractive face 14 of object space dorsad, towards the first interior reflective surface 15 of object space, first cemented surface 16 of object space dorsad, towards the second interior reflective surface 17 of object space, face type is the second cemented surface 18 of plane, towards the second plane of refraction 19 of object space, the wherein center inner annular edge in first refractive face 14 and the outer shroud side edge of the first interior reflective surface 15, the center inner annular edge of the second interior reflective surface 17 and the outer shroud side edge of the second cemented surface 18.First interior reflective surface 15, second interior reflective surface 17 plates high-reflecting film, and first refractive face 14, second plane of refraction 19 plates anti-reflection film.First refractive face 14 is used for correcting f-θ distortion, and after optimizing, f-θ distortion can control within ± 2%; There is strict restriction to light path, make the light beam from ad-hoc location incidence of only finite width just by system imaging; First interior reflective surface 15 can correct aberration, and its impact of radius on astigmatism and coma is maximum, also very large on the impact of the curvature of field.First cemented surface 16 bends towards diaphragm 4, is mainly used to correct chromatic longitudiinal aberration.The radius of the second interior reflective surface 17 is minimum in Hemispheric panoramic imaging system group a, the impact distorted on the curvature of field and f-θ is very large, also affect light beam at the first interior reflective surface 15 and the normal projection of the second plane of refraction 19 and the normal incidence of light beam in first refractive face 14 of inward flange visual field, therefore its change in radius scope is little, be one to change with the radius of the second plane of refraction 19, being used for the correction portion curvature of field and f-θ distorts.Second cemented surface 18 is plane, convenient processing.Second plane of refraction 19 is mainly used to the astigmatism and the curvature of field that correct Hemispheric panoramic imaging system group a.Hemispheric panoramic imaging system group a adopts special three gummed Hemispheric panoramic imaging system structures, namely plane is made in the rear surface of monolithic Hemispheric panoramic imaging system, inserts a cemented surface in centre, then glues together a plano-convex lens in rear surface and formed.Such a structure increases the aberration correction degree of freedom of Hemispheric panoramic imaging system group a, be more conducive to compensating the aberration between image rotation lenses group b.That chromatic longitudiinal aberration can be remedied to is less for the first cemented surface 16 introduced and the second cemented surface 18, and variable exit facet radius-of-curvature can make astigmatism correct, and while is hereby cut down the curvature of field and also reduces a lot.The glass that Hemispheric panoramic imaging system group a uses is as shown in table 2, uses the ZK7 of high index of refraction, low dispersion, is conducive to correcting senior aberration.
As shown in Figure 3, image rotation lenses group b comprises eight lens, containing two cemented doublets.Eight lens of image rotation lenses group b are around optical axis Rotational Symmetry, and each spherical lens has oneself independently thickness, Abbe number, refractive index, outside dimension, radius-of-curvature.Wherein the second positive lens 6 and the first negative lens 7 glue together mutually, can correct high-order spherical aberration; Second negative lens 9 and the 3rd positive lens 10 glue together mutually, can correct senior astigmatism; Diverging meniscus lens 11 is used for the correction system curvature of field; First positive lens 12 in order to reduce chief ray incident angle, increase back work distance from.Longer back work distance is from the installing space that ensure that other part.Two cemented doublets used are also favourable to chromatic aberration correction.The enlargement ratio of image rotation lenses group b is 0.5 ~ 0.6.The glass that image rotation lenses group b uses is as shown in table 2, and the ZF6 of use high index of refraction, high dispersion can reduce senior aberration, and the straight line of LAF4 and normal glass is comparatively far away, can reduce the second order spectrum of system.The specific refractivity of the second positive lens 6 and the first negative lens 7 is 0.12, can reduce the senior aberration of system.
Its optical imaging path as shown in Figure 4, light incides Hemispheric panoramic imaging system group a with the angle of (40 °-100 °) × 360 ° by first refractive face 14, by the first cemented surface 16, successively after the second interior reflective surface 17 and the first interior reflective surface 15 liang of secondary reflections, light beam is in divergent state, then through the second cemented surface 18, reflected from Hemispheric panoramic imaging system group a by the second plane of refraction 19 again, limit through diaphragm 4 pairs of beam sizes, make the part light of participation imaging to image rotation lenses group b.Compression field angle, the picture of generation is the virtual image, and the virtual image is positioned at the left side of Hemispheric panoramic imaging system group a; The virtual image is converted to the real image reduced by image rotation lenses group b again.The emergent pupil of Hemispheric panoramic imaging system group a overlaps with the entrance pupil of image rotation lenses group b, and image rotation lenses group b carries out aberration compensation to Hemispheric panoramic imaging system group a.Imaging light can correct and eliminate the residual aberration of light through image rotation lenses group b.The optical imagery being positioned at image planes 13 place is received by CCD.As can be seen from Fig., image space chief ray and optical axis included angle are very little, and namely accurate telecentric beam path, this ensure that image illumination uniformity.
As shown in Figure 5, the transfer curve of focal length type Panoramic annular imaging camera lens, in figure, the curve of the top is diffraction limit transfer curve, and other curve is respectively the transfer curve in each visual field meridian direction and sagitta of arc direction.As seen from the figure, the transport function of each coloured light in each visual field of camera lens is all greater than 0.6 in the value at 80lp/mm place, and close to diffraction limit, and transfer curve is very concentrated, and the consistance of transfer function values is within 0.1, and image quality is good.
As shown in Figure 6, can find out from the point range figure of focal length type Panoramic annular imaging camera lens, 40 °, 55 °, 70 °, 85 ° these four root mean square radii with reference to visual field are all at about 3 μm, and the root mean square radii of maximum field of view's 100 ° of discs of confusion is 4.382 μm.
As shown in Figure 7, as can be seen from the curvature of field and the f-θ distortion curve of focal length type Panoramic annular imaging camera lens, there is maximum f-θ distortion value-2.8% whole visual field 84 ° time, is similar to and meets linear imaging.
As shown in Figure 8, as can be seen from the image planes relative exposure curve of focal length type Panoramic annular imaging camera lens, the angle value that contrasts of maximum field of view is 0.95, and whole illuminance of image plane is very even.
As shown in Figure 9, as can be seen from focal length type Panoramic annular imaging camera lens chromatic longitudiinal aberration curve, chromatic longitudiinal aberration maximal value is 1.6 μm, and within Airy disk scope, chromatic aberration correction is good.
The present embodiment proposes technical parameter and the dependency structure parameter of focal length type Panoramic annular imaging camera lens, as shown in following table 1 and table 2.
The technical parameter of table 1 focal length type Panoramic annular imaging camera lens
The structural parameters of table 2 focal length type Panoramic annular imaging camera lens
Above-described embodiment does not limit the utility model in any form, the technical scheme that all employings analog structure of the present utility model, method and similar variation pattern thereof obtain, all at protection domain of the present utility model.
Claims (2)
1. a focal length type Panoramic annular imaging camera lens, is made up of ten a slice spherical lenses altogether, comprises Hemispheric panoramic imaging system group (a) and image rotation lenses group (b), described Hemispheric panoramic imaging system group (a) comprises coaxially and the first lens (1), the second lens (2) and the 3rd lens (3) that are arranged in order from object space to image space, described Hemispheric panoramic imaging system group (a) has six faces, and be sphere, comprising the first refractive face (14) of object space dorsad, towards first interior reflective surface (15) of object space, first cemented surface (16) of object space dorsad, towards second interior reflective surface (17) of object space, face type is second cemented surface (18) of plane, towards second plane of refraction (19) of object space, the center inner annular edge in described first refractive face (14) and the outer shroud side edge of described the first interior reflective surface (15), the center inner annular edge of described the second interior reflective surface (17) and the outer shroud side edge of described the second cemented surface (18), described the first interior reflective surface (15), described the second interior reflective surface (17) plating high-reflecting film, described first refractive face (14), described the second plane of refraction (19) plating anti-reflection film, described image rotation lenses group (b) is formed by around rotational symmetric eight lens of optical axis, containing diverging meniscus lens (11) and the first positive lens (12), wherein the second positive lens (6), the first negative lens (7) glue together mutually, and the second negative lens (9), the 3rd positive lens (10) glue together mutually.
2. focal length type Panoramic annular imaging camera lens according to claim 1, it is characterized in that described Hemispheric panoramic imaging system group (a) adopts three gummed Hemispheric panoramic imaging system structures, plane is made in rear surface by monolithic Hemispheric panoramic imaging system, insert a cemented surface in centre, then glue together a plano-convex lens in rear surface and formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147189.2U CN204044421U (en) | 2014-03-26 | 2014-03-26 | A kind of focal length type Panoramic annular imaging camera lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147189.2U CN204044421U (en) | 2014-03-26 | 2014-03-26 | A kind of focal length type Panoramic annular imaging camera lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204044421U true CN204044421U (en) | 2014-12-24 |
Family
ID=52245071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147189.2U Expired - Fee Related CN204044421U (en) | 2014-03-26 | 2014-03-26 | A kind of focal length type Panoramic annular imaging camera lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204044421U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969800A (en) * | 2014-03-26 | 2014-08-06 | 中国计量学院 | Long-focus type panoramic annular imaging lens |
| CN104639688A (en) * | 2015-02-02 | 2015-05-20 | 青岛歌尔声学科技有限公司 | Mobile phone panoramic lens |
| WO2016206002A1 (en) * | 2015-06-23 | 2016-12-29 | 博立多媒体控股有限公司 | Catadioptric lens assembly and panoramic image acquisition device |
| CN106842517A (en) * | 2017-01-19 | 2017-06-13 | 吉林省中业光电技术有限公司 | A kind of 360 ° of omnidirectional imaging systems of high resolution |
| CN106873134A (en) * | 2017-01-19 | 2017-06-20 | 吉林省中业光电技术有限公司 | A kind of catadioptric ultra-wide angle imaging system |
| WO2017107909A1 (en) * | 2015-12-22 | 2017-06-29 | 博立码杰通讯(深圳)有限公司 | Panoramic optical lens and image capturing device |
| CN114460725A (en) * | 2022-01-17 | 2022-05-10 | 北京理工大学 | Empty dual-purpose panoramic lens of water |
| CN116068758A (en) * | 2023-04-06 | 2023-05-05 | 浙江大学 | Panoramic girdle lens design method, lens and panoramic image restoration method |
-
2014
- 2014-03-26 CN CN201420147189.2U patent/CN204044421U/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969800A (en) * | 2014-03-26 | 2014-08-06 | 中国计量学院 | Long-focus type panoramic annular imaging lens |
| CN103969800B (en) * | 2014-03-26 | 2017-03-22 | 中国计量学院 | Long-focus type panoramic annular imaging lens |
| CN104639688A (en) * | 2015-02-02 | 2015-05-20 | 青岛歌尔声学科技有限公司 | Mobile phone panoramic lens |
| WO2016206002A1 (en) * | 2015-06-23 | 2016-12-29 | 博立多媒体控股有限公司 | Catadioptric lens assembly and panoramic image acquisition device |
| WO2017107909A1 (en) * | 2015-12-22 | 2017-06-29 | 博立码杰通讯(深圳)有限公司 | Panoramic optical lens and image capturing device |
| CN106842517A (en) * | 2017-01-19 | 2017-06-13 | 吉林省中业光电技术有限公司 | A kind of 360 ° of omnidirectional imaging systems of high resolution |
| CN106873134A (en) * | 2017-01-19 | 2017-06-20 | 吉林省中业光电技术有限公司 | A kind of catadioptric ultra-wide angle imaging system |
| CN106873134B (en) * | 2017-01-19 | 2019-01-22 | 吉林省中业光电技术有限公司 | A kind of catadioptric ultra-wide angle imaging system |
| CN106842517B (en) * | 2017-01-19 | 2019-02-22 | 吉林省中业光电技术有限公司 | A kind of 360 ° of omnidirectional imaging systems of high resolution |
| CN114460725A (en) * | 2022-01-17 | 2022-05-10 | 北京理工大学 | Empty dual-purpose panoramic lens of water |
| CN116068758A (en) * | 2023-04-06 | 2023-05-05 | 浙江大学 | Panoramic girdle lens design method, lens and panoramic image restoration method |
| CN116068758B (en) * | 2023-04-06 | 2023-06-27 | 浙江大学 | Panoramic girdle lens design method, lens and panoramic image restoration method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204044421U (en) | A kind of focal length type Panoramic annular imaging camera lens | |
| CN103969800B (en) | Long-focus type panoramic annular imaging lens | |
| CN103777314B (en) | Wide angle projection lens | |
| CN102495460B (en) | Panoramic imaging lens | |
| CN108388004B (en) | A kind of starlight grade high definition day and night confocal optics camera lens | |
| CN108318995B (en) | Lens system and lens | |
| CN106324798B (en) | A kind of lens system and camera lens | |
| CN104317039A (en) | Reflex type telephoto objective lens | |
| CN104635333A (en) | Eyepiece, headset eyepiece system and micro-display headset equipment | |
| CN107422463B (en) | Confocal optical system of clear day night of long burnt superelevation | |
| CN110824669B (en) | 8K high-resolution panoramic annular optical lens | |
| CN110007438A (en) | A kind of number aerial mapping color camera telecentric optical system | |
| CN101915980B (en) | Image space telecentric projection camera lens | |
| CN211402915U (en) | Visible light-medium wave infrared integrated optical lens | |
| CN106918897B (en) | Compact ultra-wide-angle day and night confocal optical lens | |
| CN108279486A (en) | A kind of high pixel video meeting optical imaging system of big image planes | |
| CN109061839B (en) | Super star light level high definition optical lens | |
| CN111077664A (en) | Visible light-medium wave infrared integrated optical lens | |
| CN207281374U (en) | New fish eye lens | |
| CN104330867A (en) | Large-aperture small-F-number optical system used for television wave band | |
| CN109445065A (en) | A kind of 10 group of 13 chip lens construction for d-cinema projectors | |
| CN106094183B (en) | Focusing-style optical imaging system in a kind of high image quality | |
| CN109116525B (en) | Athermal fisheye high-definition optical lens | |
| CN217443628U (en) | Optical system of camera with large visual field and high imaging stability | |
| CN203965714U (en) | A kind of long-focus long-wave infrared continuous zoom lens |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20160326 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |