CN102928961A - Concave-convex two-reflection type panorama annular-belt view field imaging camera lens - Google Patents
Concave-convex two-reflection type panorama annular-belt view field imaging camera lens Download PDFInfo
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- CN102928961A CN102928961A CN2012105035652A CN201210503565A CN102928961A CN 102928961 A CN102928961 A CN 102928961A CN 2012105035652 A CN2012105035652 A CN 2012105035652A CN 201210503565 A CN201210503565 A CN 201210503565A CN 102928961 A CN102928961 A CN 102928961A
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Abstract
The invention belongs to the technical field of an imaging lens and particularly relates to a concave-convex two-reflection type panorama annular-belt view field imaging camera lens. A concave reflection mirror surface and a convex reflection mirror surface are used for realizing collection and conversion of imaging lights in a panorama annular-belt view field. According to the concave-convex two-reflection type panorama annular-belt view field imaging camera lens, the selection range of a mirror body of a reflection mirror is wide; the high optical efficiency is guaranteed by plating the reflection mirror of a high-optical-efficiency reflection thin film; the reflection mirror surfaces do not generate chromatic aberration in vacuum or an air medium and the difficulty of correcting the chromatic aberration by a relay lens group is reduced; and the surface shapes of the concave and convex reflection mirror surfaces can be respectively selected from a spherical surface or a non-spherical surface so as to reduce the difficulty of correcting optical chromatic aberration including spherical aberration, coma aberration, astigmatism and the like by the relay lens group, and guarantee the good optical image quality.
Description
Technical field
The invention belongs to the imaging lens technical field, be specifically related to a kind of concavo-convex two reflective panoramic imaging lens.
Background technology
What the optics visual field by both direction formed can be thought in the optics visual field of overall view ring belt optical lens, namely in Descartes's polar coordinate system, the optics visual field of a direction is positioned at XOY plane, the visual field size that is azimuth direction is 360 °, and the size of the optics visual field of another direction is the difference of luffing angle.Above-mentioned two visual field components are presented as endless belt in XOY plane, the big or small visor head of endless belt numerical value and deciding.Such camera lens can be to the Scenery Imaging in 360 ° of endless belt visual fields, thereby reaches special imaging effect.
The form of overall view ring belt camera lens has multiple, is divided into refraction type and reflective.Its material of overall view ring belt camera lens of refraction type is transmission material; The huge structure of general reflective panorama camera is unfavorable for the miniaturization use.
The technical matters that the refraction-reflection panorama camera exists:
1. the material of panoramic imaging lens is refractive material, and repeatedly after refraction and the reflection, optical efficiency reduces light in camera lens, and light energy losses is serious;
2. when adopting crystalline material in the panoramic imaging lens, can realize the optimal design of optics picture element, but exist the part crystalline material to hold deliquescent problem;
3. when adopting the binary face in the panoramic imaging lens, can realize the optimal design of optics picture element, but have the problem of optical technology complexity;
4. panoramic imaging lens is integrated or during the multiple-piece form, the manufacture difficulty of optical surface is large;
5. panoramic imaging lens is integrated or during the multiple-piece form, the assembling difficulty of camera lens is large;
6. panoramic imaging lens is integrated or during the multiple-piece form, the selection of camera lens material is with complicated, and light path can produce larger aberration before relay lens group, strengthen the difficulty of relay lens group aberration correction;
7. the panorama camera that is comprised of the full shot of a slice mirror type, optical dimensions is large, is unfavorable for that miniaturization uses.
Summary of the invention
The object of the present invention is to provide a kind of simple in structurely, cost is low, the concavo-convex two reflective overall view ring belt view field imaging camera lenses that volume is little.
The concavo-convex two reflective overall view ring belt view field imaging camera lenses that the present invention proposes, it mainly is comprised of with relay lens group 5 recessed mirror surface 2 and convex reflector face 3;
Wherein, described recessed mirror surface 2 is the circular endless belt minute surface of indent, and convex reflector face 3 is the circular endless belt minute surface of evagination, and relay lens group 5 is for being usually used in one group of lens of rear light path imaging.
The reflecting surface of described recessed mirror surface 2 is downward, and described convex reflector face 3 is arranged under the recessed mirror surface 2, and equal Rotational Symmetries centered by optical axis (axis of symmetry of optical system); The reflecting surface of convex reflector face 3 is relative with recessed mirror surface 2; Described relay lens group 5 be arranged at convex reflector face 3 under, and be positioned between convex reflector face 3 and the focal plane (IMA).As shown in Figure 1.
Described recessed mirror surface 2 adopts sphere or aspherical mirror, and described convex reflector face 3 adopts sphere, aspheric surface or plane minute surface.
Described relay lens group 5 is carried out the correction of aberration for being used for one group of lens of rear light path imaging to the light that enters.
Light projects recessed mirror surface 2 by the gap of recessed mirror surface 2 and convex reflector face 3 in the optics visual field, reflex to convex reflector face 3, reflected through again the endless belt mesopore of recessed mirror surface 2 by convex reflector face 3, enter relay lens group 5, after process relay lens group 5 is carried out the correction of aberration, light arrives focal plane (IMA), receives light with detector, realizes optical imagery.
Concavo-convex catoptron and relay lens group are all about the optical axis Rotational Symmetry.Two mirror surfaces are all easily realized in making and assembling, and can be guaranteed degree of precision.
In a kind of concavo-convex two reflective overall view ring belt view field imaging camera lenses, only through the reflection of two mirror surfaces, optical efficiency is high for light;
In a kind of concavo-convex two reflective overall view ring belt view field imaging camera lenses, light does not produce aberration through the reflection of two mirror surfaces, can reduce the difficulty of relay lens group correcting chromatic aberration;
In a kind of concavo-convex two reflective overall view ring belt view field imaging camera lenses, because camera lens is mirror surface, so in not producing the scope of blocking, all can carry out imaging to outdoor scene.
The present invention uses concavo-convex two mirror surfaces to form full shot, has improved optical efficiency, reduces the difficulty of relay lens group correcting chromatic aberration.The size of full shot pitch orientation field of view angle is relevant with recessed mirror surface 2 diameter ratios with convex reflector face 3.
Description of drawings
Fig. 1 is of the present invention at a kind of concavo-convex two reflective overall view ring belt view field imaging optical texture synoptic diagram.
Fig. 2 is a kind of embodiment synoptic diagram of the present invention.
Number in the figure: 2 is recessed mirror surface, and 3 is the convex reflector face, and 5 is relay lens group, and 6 is mechanical support structure.
Embodiment
The reflecting surface of recessed mirror surface 2 and convex reflector face 3 is relative and put, and equal Rotational Symmetries centered by optical axis (axis of symmetry of optical system); Described relay lens group 5 is arranged at the dead astern of recessed mirror surface 2, namely faces the mesopore of recessed mirror surface 2, and is positioned between recessed mirror surface 2 and the focal plane (IMA); Interconnect by suitable mechanical support mechanism 6 between recessed mirror surface 2 and the convex reflector face 3, form a reflector body.
Described mechanical support mechanism 6 fingers can guarantee that optical interval between the recessed mirror surface 2 of environment for use and convex reflector face 3 and optics block and meet the mechanism that concrete optical design requires, guaranteeing the lens imaging quality and to use the visual field, as shown in Figure 2.
Light arrives convex reflector face 3, after the reflection of convex reflector face 3 with through after recessed mirror surface 2 reflections, light enters relay lens group 5, and after process relay lens group 5 was carried out the correction of aberration, light arrived focal plane IMA, receive light with detector, realize optical imagery.
Wherein, recessed mirror surface 2 is concave surface, and convex reflector face 3 is convex surface, and the material of two catoptrics minute surfaces adopts the conventional material of making; Can adopt recessed mirror surface 2 and the face shape of convex reflector face 3 to be sphere; Perhaps recessed mirror surface 2 is aspheric surface for sphere convex reflector face 3; Or recessed mirror surface 2 is sphere for aspheric surface convex reflector face 3; Or recessed mirror surface 2 is aspheric surface with convex reflector face 3.Aspheric introducing can reduce the difficulty of relay lens group correct for optical aberrations such as spherical aberration, coma, astigmatism etc., improves picture element.
Especially, convex reflector face 3 can be that infinitely-great sphere is plane mirror for radius.
Mirror surface is coated with the optical thin film of high reflection efficiency, can improve the reflection efficiency of minute surface.
Claims (3)
1. concavo-convex two reflective overall view ring belt view field imaging camera lenses is characterized in that being comprised of recessed mirror surface (2), convex reflector face (3) and relay lens group (5);
Wherein, described recessed mirror surface (2) is the circular endless belt minute surface of indent, and convex reflector face (3) is the circular endless belt minute surface of evagination;
The reflecting surface of described recessed mirror surface (2) is downward, and described convex reflector face (3) is arranged under the recessed mirror surface (2), and equal Rotational Symmetries centered by optical axis; (2 is relative with recessed mirror surface for the reflecting surface of convex reflector face (3);
Described relay lens group (5) be arranged at convex reflector face (3) under, and be positioned between convex reflector face (3) and the focal plane;
The core of recessed mirror surface (2) has a mesopore that can allow light pass, and is the blind area part of recessed mirror surface (2);
After the light that convex reflector face (3) reflects back recessed mirror surface (2) reflected, light passed from the interstitial hole of mirror surface (2), arrived relay lens group (5); After process relay lens group (5) was carried out the correction of aberration, light arrived focal plane IMA, receives light with detector, realized optical imagery.
2. as claimed in claim 1 concavo-convex two reflective overall view ring belt view field imaging camera lenses is characterized in that described recessed mirror surface (2) adopts sphere or aspherical mirror, and described convex reflector face (3) adopts sphere, aspheric surface or plane minute surface.
3. as claimed in claim 1 concavo-convex two reflective overall view ring belt view field imaging camera lenses is characterized in that being provided with mechanical support structure (6) between described recessed mirror surface (2) and the convex reflector face (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105035652A CN102928961A (en) | 2012-12-01 | 2012-12-01 | Concave-convex two-reflection type panorama annular-belt view field imaging camera lens |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012105035652A CN102928961A (en) | 2012-12-01 | 2012-12-01 | Concave-convex two-reflection type panorama annular-belt view field imaging camera lens |
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| CN102928961A true CN102928961A (en) | 2013-02-13 |
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| CN2012105035652A Pending CN102928961A (en) | 2012-12-01 | 2012-12-01 | Concave-convex two-reflection type panorama annular-belt view field imaging camera lens |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093486A (en) * | 2015-07-10 | 2015-11-25 | 上海臻恒光电系统有限公司 | Panoramic imaging lens with dual-light-path system |
| CN105116521A (en) * | 2015-08-20 | 2015-12-02 | 上海臻恒光电系统有限公司 | Panoramic camera based on double-sphere two-reflection ultra large field of view |
| CN106597653A (en) * | 2016-11-24 | 2017-04-26 | 中国科学院长春光学精密机械与物理研究所 | Refraction and reflection optical system and refraction and reflection optical imaging method |
| CN107517336A (en) * | 2016-06-17 | 2017-12-26 | 深圳市合正汽车电子有限公司 | A kind of camera |
| CN110381237A (en) * | 2019-07-02 | 2019-10-25 | 北京航空航天大学 | A kind of curved face reflecting type overall view visual system based on single view imaging |
| JP2022516363A (en) * | 2019-01-08 | 2022-02-25 | セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） | Ultra-wide viewing angle accessory for infrared detectors |
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| CN1421724A (en) * | 2001-11-29 | 2003-06-04 | 株式会社立山研开 | Holographic lens |
| CN1558262A (en) * | 2004-01-12 | 2004-12-29 | 浙江大学 | Annular panoramic gaze imaging method for large viewing field with 180 degree |
| US20060238879A1 (en) * | 2005-04-25 | 2006-10-26 | Takayoshi Togino | Rotationally asymmetric optical system |
| CN101473261A (en) * | 2006-06-15 | 2009-07-01 | 奥林巴斯株式会社 | Optical system |
| CN102707413A (en) * | 2012-07-06 | 2012-10-03 | 苏州大学 | Long-focus optical system for star tracker |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1421724A (en) * | 2001-11-29 | 2003-06-04 | 株式会社立山研开 | Holographic lens |
| CN1558262A (en) * | 2004-01-12 | 2004-12-29 | 浙江大学 | Annular panoramic gaze imaging method for large viewing field with 180 degree |
| US20060238879A1 (en) * | 2005-04-25 | 2006-10-26 | Takayoshi Togino | Rotationally asymmetric optical system |
| CN101473261A (en) * | 2006-06-15 | 2009-07-01 | 奥林巴斯株式会社 | Optical system |
| CN102707413A (en) * | 2012-07-06 | 2012-10-03 | 苏州大学 | Long-focus optical system for star tracker |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105093486A (en) * | 2015-07-10 | 2015-11-25 | 上海臻恒光电系统有限公司 | Panoramic imaging lens with dual-light-path system |
| CN105116521A (en) * | 2015-08-20 | 2015-12-02 | 上海臻恒光电系统有限公司 | Panoramic camera based on double-sphere two-reflection ultra large field of view |
| CN107517336A (en) * | 2016-06-17 | 2017-12-26 | 深圳市合正汽车电子有限公司 | A kind of camera |
| CN106597653A (en) * | 2016-11-24 | 2017-04-26 | 中国科学院长春光学精密机械与物理研究所 | Refraction and reflection optical system and refraction and reflection optical imaging method |
| JP2022516363A (en) * | 2019-01-08 | 2022-02-25 | セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） | Ultra-wide viewing angle accessory for infrared detectors |
| JP7402236B2 (en) | 2019-01-08 | 2023-12-20 | セントレ サイエンティフィーク エ テクニーク デュ バティマン（シーエスティービー） | Ultra-wide viewing angle accessories for infrared detectors |
| US11892355B2 (en) | 2019-01-08 | 2024-02-06 | Centre Scientifique et Technique du Bâtiment (CSTB) | Very wide-angle viewing accessory for infrared detector |
| CN110381237A (en) * | 2019-07-02 | 2019-10-25 | 北京航空航天大学 | A kind of curved face reflecting type overall view visual system based on single view imaging |
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Application publication date: 20130213 |