CN100416398C - Overall view visual system based on double-curve viewfinder - Google Patents

Overall view visual system based on double-curve viewfinder Download PDF

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Publication number
CN100416398C
CN100416398C CNB2006101472166A CN200610147216A CN100416398C CN 100416398 C CN100416398 C CN 100416398C CN B2006101472166 A CNB2006101472166 A CN B2006101472166A CN 200610147216 A CN200610147216 A CN 200610147216A CN 100416398 C CN100416398 C CN 100416398C
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China
Prior art keywords
zoom lens
view
overall view
panorama
connector
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Expired - Fee Related
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CNB2006101472166A
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CN1975554A (en
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王景川
陈卫东
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

This invention relates to a kind of overall view vision system based on hyperboloid mirrorscope, overall view mirrorscope and overall view connector compose overall view finder module, the zoom lens connector and the zoom lens compose the zoom lens module, the upper part of the glass protecting cover is blocked in the flute of the overall view finder connector, the down part is blocked in the flute zoom lens connector, to make both the overall view mirrorscope and the zoom lens are put in the glass protecting cover, the finder telecamera links with the zoom lens connector. The centre of overall view mirrorscope , zoom lens and telecamera sensor are in the same straight line , it has ascertained optical imaging focal point of the overall view system; the said overall view mirrorscope is hyperboloid structure , the reflection focal which the hyperboloid point corresponded and the optical imaging focal point of the overall view system coincide. The overall view mirrorscope in the invention adopts the hyperboloid structure, it can satisfy the range demand of wide angles finder of the system, the module combination method is easy to assemble and change, has improved the reliability of the system.

Description

Overall view visual system based on the hyperboloid of two sheets view finder
Technical field
The present invention relates to a kind of overall view visual system based on the hyperboloid of two sheets view finder, modules such as collection panorama view finder, zoom lens, the video camera of finding a view are one, the technology of aspects such as applied optics imaging and Machine Design is come range, precision and the accuracy of raising system to environment identification, monitoring.
Background technology
Vision system all is very important sensing means in a lot of fields, such as aspects such as security protection, monitoring, robot system, Flame Image Process.For a long time, its image-taking system is developed, improved to the production, teaching ﹠ research constituent parts all constantly according to the different application occasion, and quality is more stable to obtain, the more image of quantity of information.Overall view visual system is adopted by people gradually with the advantage at its super large visual angle.
The panoramic vision technology is utilized the direct reflection principle exactly, enlarges the visual field of vision system.In overall view visual system, picture pick-up device is not the direct viewing external environment, but over against a convex mirror (panorama view finder), the camera lens of the picture pick-up device of concentrating after the light process direct reflection that distant objects is sent, thus on the sensor of picture pick-up device, form image information.Like this, only just can observe the overall view visual system interior entire environment of 360 degree on every side, can significantly reduce the complicacy and the difficulty of system design, and reduce the cost of system with a video camera.
The design of panorama view finder be varied, vary, but present view finder is generally all at certain specific occasion or purposes and particular design, do not follow certain optical imagery rule, be difficult to have versatility, so just cause this view finder can only be applicable to a kind of camera lens of specific standard and the video camera of finding a view, in certain environment, use, make that the applicability of system is relatively poor.
The panoramic vision product generally partly is made up of panorama catoptron (panorama view finder), find a view video camera and stationary installation etc., the curvature mirror of panorama view finder has directly determined the scope of finding a view, the video camera of finding a view has determined the quality of viewfinder image and the corresponding relation of viewfinder image and real scene, and stationary installation has also played certain effect to normal, the reliable use of total system.But there is certain defective in present product in designs such as the connection of this three part, installation: a kind of way, be that three parts are adopted the connected mode that is completely fixed, soon view finder, video camera are installed together with disposable fixed form, and such way causes this panoramic vision product to use limitation; Another kind of way, be that three parts are adopted movable connection fully, as bolt connection etc., panorama view finder, video camera etc. just can be hyperphoric easily like this, thereby increased the usable range of this panoramic vision product, but too much so movable connection greatly reduces the reliability of system, the easier bolt looseness that causes of long-time use, increased the uncertain factor that system uses, also be unfavorable for the aesthetic in appearance of system in addition, be unfavorable for installing, carrying.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of overall view visual system based on the hyperboloid of two sheets view finder is provided, designs general double-curve viewfinder, to be applicable to plurality of specifications camera lens and camera chain, easy for installation flexible, improve system stability.
For realizing this purpose, in the present invention, the panorama view finder has adopted general hyperboloid of two sheets structure, and the hyperboloid curvilinear equation is: z 2 a 2 - x 2 + y 2 b 2 = 1 , Because the double-curve viewfinder of different curve equation all has only a light emission point (focus), and hyperboloid curvature is less than curvature of curved surface such as para-curve, circular conical surfaces, astigmatism is also lower during mirror image, only need during installation the one-tenth image focus of video camera is overlapped with bi-curved emission focus, just can obtain 360 ° panorama viewfinder range.
Installing, the present invention assembles the panorama finder system according to modular mode, and this vision system four parts such as module, zoom lens module, protecting glass, the video camera of finding a view of being found a view by panorama are formed.The panorama module of finding a view is connected and composed by find a view connector and panorama view finder of panorama, and the panorama view finder can require change according to different occasions, different acquisition thus; The video camera of finding a view also can be replaced according to the requirement of different qualities, also can use multiple video cameras such as simulation and numeral; The focal length of zoom lens module can satisfy the find a view requirement of camera parameters of difference.Such modularization mounting means can promote the application space of native system greatly.
Concrete structure of the present invention and Installation Modes are: the panorama view finder links to each other by fastening screw pit on it and the panorama connector of finding a view, and forms the panorama module of finding a view; The zoom lens connector is fixed by threaded hole and zoom lens, forms zoom lens module; The top of protecting glass is stuck in panorama and finds a view in the groove of connector outer ring, and the bottom of protecting glass is stuck in the groove of zoom lens connector outer ring, and panorama view finder and zoom lens are all placed in the protecting glass.The bottom thread of video camera by the zoom lens connector of finding a view is connected with the zoom lens connector; Camera sensor is positioned at the middle of the video camera of finding a view, and 3 at the center of center and the camera sensor of finding a view of center, zoom lens that forms the panorama view finder like this and obtains the optical imagery focus of overall view visual system on same straight line.The panorama view finder is the hyperboloid of two sheets structure, and surface equation is z 2 a 2 - x 2 + y 2 b 2 = 1 , For hyperboloid curved surface parameter a, b, hyperboloid all have unique reflector focus.When overall view visual system is installed, the reflector focus of hyperboloid correspondence is overlapped with the optical imagery focus of overall view visual system, thereby reach the effect that panorama is found a view.
System architecture of the present invention is simple, and panorama view finder, zoom lens, video camera etc. adopt modularization composite structure, installs, changes more convenient succinct, cheap, and has improved the dependability of system, can satisfy different field, different quality demand.
Description of drawings
Fig. 1 is that structure of the present invention is formed synoptic diagram.
Among Fig. 1, the 1-panorama connector of finding a view, 2-panorama view finder, 3-protecting glass, 4-zoom lens, 5-optical imagery focus, 6-zoom lens connector, 7-camera sensor, the 8-video camera of finding a view.
Fig. 2 is a panorama viewfinder structure diagrammatic cross-section.
Among Fig. 2,9-fastening screw pit, 10-hyperboloid reflector focus.
Embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is further described.
Fig. 1 is the structural representation of overall view visual system of the present invention.As shown in Figure 1, the panorama connector 1 of finding a view links to each other with panorama view finder 2, forms the panorama module of finding a view.Zoom lens connector 6 is fixing by threaded hole and zoom lens 4, forms zoom lens module.The top of protecting glass 3 is stuck in panorama and finds a view in the groove of connector 1 outer ring, and the bottom of protecting glass 3 is stuck in the groove of zoom lens connector 6 outer rings, and panorama view finder 2 and zoom lens 4 are all placed in the protecting glass 3.The bottom thread of video camera 8 by zoom lens connector 6 of finding a view is connected with zoom lens connector 6.
Camera sensor 7 is positioned at the middle of the video camera 8 of finding a view, and 3 at the center of center and the camera sensor 7 of finding a view of center, zoom lens 4 that forms panorama view finder 2 like this and obtains the optical imagery focus 5 of overall view visual system on same straight line.
Fig. 2 is the hyperboloid diagrammatic cross-section of panorama view finder of the present invention, and fastening screw pit 9 is the installing and locating hole of panorama view finder among the figure, and panorama view finder 2 is connected by fastening screw pit 9 and the panorama connector 1 of finding a view.Panorama view finder 2 is the hyperboloid of two sheets structure, and surface equation is z 2 a 2 - x 2 + y 2 b 2 = 1 , For hyperboloid curved surface parameter a, b, hyperboloid all have unique reflector focus 10.
For the hyperboloid panorama view finder of different curvature, can determine curved surface parameter a according to surface equation, b, thus determine reflector focus 10.Can determine optical imagery focus 5 according to the diameter D of panorama view finder 2, the setting height(from bottom) L and the camera sensor 7 of the video camera 8 of finding a view.Optical imagery focus 5 needs to overlap with reflector focus 10.
When the bright overall view visual system of we is installed, can make hyperboloid reflector focus 10 overlap, thereby reach the effect that panorama is found a view by adjusting the height of protecting glass 3 with the optical imagery focus 5 of overall view visual system.
Among the present invention, connect and compose the panorama module of finding a view by find a view connector 1 and panorama view finder 2 of panorama, panorama view finder 2 can require change according to different occasions, different acquisition thus.Simultaneously, zoom lens connector 6 connects and composes zoom lens module with zoom lens 4, and the focal length of zoom lens module can satisfy the requirement of different cameras parameter.The video camera 8 of finding a view also can be replaced according to the requirement of different qualities.The mounting means that adopts between each module not only makes things convenient for the replacing of intermodule but also increased system's dependability.

Claims (1)

1. overall view visual system based on the hyperboloid of two sheets view finder, comprise panorama view finder (2), zoom lens (4) and the video camera of finding a view (8), it is characterized in that panorama view finder (2) links to each other by fastening screw pit (9) on it and the panorama connector (1) of finding a view, form the panorama module of finding a view; Zoom lens connector (6) is fixing by threaded hole and zoom lens (4), forms zoom lens module; The top of protecting glass (3) is stuck in panorama and finds a view in the groove of connector (1) outer ring, the bottom of protecting glass (3) is stuck in the groove of zoom lens connector (6) outer ring, panorama view finder (2) and zoom lens (4) are all placed in the protecting glass (3), and the video camera of finding a view (8) is connected with zoom lens connector (6) by the bottom thread of zoom lens connector (6); 3 at the center of the camera sensor (7) that the center of the center of panorama view finder (2), zoom lens (4) and the video camera of finding a view (8) are inner and obtains the optical imagery focus (5) of overall view visual system on same straight line; Described panorama view finder (2) is the hyperboloid of two sheets structure, and the reflector focus of its hyperboloid correspondence (10) overlaps with the optical imagery focus (5) of overall view visual system.
CNB2006101472166A 2006-12-14 2006-12-14 Overall view visual system based on double-curve viewfinder Expired - Fee Related CN100416398C (en)

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Families Citing this family (10)

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CN102053475A (en) * 2010-10-15 2011-05-11 肖继忠 Single camera based omnibearing stereo vision system
CN103203760B (en) * 2012-01-17 2015-06-17 上海未来伙伴机器人有限公司 Camera fixing device and panoramic vision system with same
CN103051884A (en) * 2013-01-14 2013-04-17 哈尔滨工程大学 Omni-directional visual monitoring system combining rough and fine modes
CN103595903A (en) * 2013-11-14 2014-02-19 广州杰赛科技股份有限公司 Panorama detecting sensor
US9939619B1 (en) * 2014-07-24 2018-04-10 Hoyos Integrity Corporation Optical stack for panoramic optical device
CN106908935B (en) * 2015-12-22 2019-11-26 博立码杰通讯(深圳)有限公司 Panoramic optical camera lens and image acquisition device
CN107561821A (en) 2016-07-01 2018-01-09 严平 Omnidirectional images gather compound camera lens
CN106547165A (en) * 2017-01-13 2017-03-29 北京全视凌云科技有限公司 A kind of optical system for panoramic imagery
CN108900748A (en) * 2018-07-05 2018-11-27 陈俊瑞 A kind of periscopic panoramic picture imaging device and system
CN116748837B (en) * 2023-08-23 2023-10-20 吉林万丰奥威汽轮有限公司 Aluminum alloy wheel mold insert device

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JP2003344962A (en) * 2002-05-24 2003-12-03 Canon Inc Omnidirectional video display system
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