CN204575853U - A kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether - Google Patents
A kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether Download PDFInfo
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- CN204575853U CN204575853U CN201520173212.XU CN201520173212U CN204575853U CN 204575853 U CN204575853 U CN 204575853U CN 201520173212 U CN201520173212 U CN 201520173212U CN 204575853 U CN204575853 U CN 204575853U
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Abstract
The utility model discloses a kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether, comprise echo signal reception mirror, slit, collimating mirror, spectro-grating, focus lamp, range finding photodetector, imaging electric explorer; Include the EO-1 hyperion signal of laser radar echo after echo signal reception mirror, by the slit that image planes place is arranged, by the flashlight of slit, directional light is become after collimating mirror, after spectro-grating, the directional light of different wave length is to specific direction propagation separately, and after line focus mirror, the slit image of different wave length is in the image planes of focus lamp; Range finding photodetector is positioned at the image planes position of focus lamp, for receiving the picture that laser radar echo becomes herein; Imaging electric explorer is positioned at the image planes position of focus lamp, for receiving ultraviolet-visible-near-infrared spectrum picture.The utility model solves traditional common platform and splits method measuring basis disunity, and the consistance of optical axis and stability are difficult to ensure, target far field consistance matching precision is poor, the problem that system bulk is large, weight is large.
Description
Technical field
The utility model relates to a kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether, belongs to Aero-Space optical sensor technical field.
Background technology
It is the effective means of carrying out high precision, high resolving power landform and resource detection that hyperspectral imager combines with laser radar, is widely used in the fields such as forestry, mining industry, mapping, national defence, has important Research Significance and using value.
As shown in Figure 1, the light source of remote sensing hyperspectral imager is the sun to typical hyperspectral imager principle.When solar irradiation is to ground object target, the rear orientation light produced by ground object target is collected by the receiving telescope of grating spectrograph.In reception, mirror foci place arranges diaphragm (or slit), and after grating spectrograph, diaphragm (or slit) image focu of different wave length is on photoelectronic detecting array.By different wave length diaphragm (or slit) as received energy collection can obtain the spectral information of ground object target, and then for the field such as forestry, mining industry.Common grating spectrograph has emitting, reflection-type two kinds, and what Fig. 1 provided is transmission-type grating spectrograph principle schematic.
As shown in Figure 2, the light source of laser radar is the pulse laser of active illumination to typical laser radar principle schematic.X time T0 is recorded to ground object target emission pulse laser by laser instrument, pulse laser arrives ground object target after air, the diaphragm (or slit) focusing to focus after telescope receives is received by the backward scattered return laser beam of ground object target, by optical filter wiping out background light after collimation, come together in photodetector by focus lamp again and carry out signals collecting, record due in T1.By R=c (T1-T0)/2 (wherein c is the light velocity), the distance R of laser radar system and target can be calculated.By coordinate positioning in conjunction with range measurement, the distribution of atural object elevation can be obtained, i.e. topography profile information.
Conventional high light spectrum image-forming and laser radar system can obtain spectral distribution information on the one hand, and can obtain structure terrain information on the one hand, both combinations can improve ability and the degree of accuracy of terrain analysis further.Thus the detection mode of main passive combination is high with its vertical accuracy, spatial and temporal resolution is high, fast in real time, the mainstream development direction of advantage becomes future topography and the resource detection such as spectral information enriches, effect of visualization is got well.
A laser radar and a hyperspectral imager mainly, are arranged on same carrying platform and observe simultaneously by the passive associated methods of current conventional master, then carry out data assimilation by complicated Processing Algorithm.This traditional common platform splits method and is easy to assembling, but due to measuring basis disunity, the consistance of optical axis and stability are difficult to ensure, two sensors measures that dislocation, the propagation of error pointed to are amplified, coordinate system not to overlap etc. unavoidable mutually, such that remote sensing target far field consistance matching precision is poor even cannot be mated.In addition, two sensors splits, volume, weight, power consumption are difficult to realize public, huge space, power consumption, load-carrying expense be also flight carrier as airborne aircraft and spacecraft insoluble.The structural design only having EO-1 hyperion integrated with laser radar just likely overcomes the above problems, and main passive light path is altogether the inevitable approach of integration.Therefore, EO-1 hyperion and laser radar are total to light path integrated is the feasible means realizing lightweight, miniaturization, low-power consumption, high precision, the three-dimensional precisely comprehensive Quick Measurement of ground object target EO-1 hyperion that is real-time, high-efficient homework.
The utility model is original invention, by By consulting literatures and existing patent of invention, does not find the achievement similar to the utility model.
Utility model content
Technology of the present utility model is dealt with problems and is: for the deficiencies in the prior art, provide a kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether, solve the consistance matching problem of high light spectrum image-forming and laser far field hot spot, system bulk of the present utility model is little, lightweight simultaneously, greatly provides cost savings.
The technical solution of the utility model system is:
A kind of EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether, comprises echo signal reception mirror, slit, collimating mirror, spectro-grating, focus lamp, range finding photodetector, imaging electric explorer;
Include the EO-1 hyperion signal of laser radar echo after echo signal reception mirror, by the slit that image planes place is arranged, by the flashlight of slit, directional light is become after collimating mirror, after spectro-grating, the directional light of different wave length is to specific direction propagation separately, and after line focus mirror, the slit image of different wave length is in the image planes of focus lamp;
Range finding photodetector is positioned at the image planes position of focus lamp, for receiving the picture that laser radar echo becomes herein; Imaging electric explorer is positioned at the image planes position of focus lamp, for receiving ultraviolet-visible-near-infrared spectrum picture.
Range finding photodetector adopts unit AP D detector or PMT detector or array APD or array PMT detector; Described imaging electric explorer adopts CCD or CMOS planar array detector.
The utility model compared with prior art beneficial effect is:
(1) the common integrated beam splitting system of light path of EO-1 hyperion and the laser radar of the utility model design, grating beam splitting is utilized to compose, both the requirement of spectrometer to spectral resolution can have been met, also can meet being separated of laser 1064nm wavelength and visible spectrum, solve the consistance matching problem of high light spectrum image-forming and laser far field hot spot.
(2) the utility model is secondary imaging system, wherein high light spectrum image-forming and laser ranging passage once as coming from same slit, corresponding same far-field position, spatial match precision is high.
(3) the common integrated beam splitting system of light path of EO-1 hyperion and the laser radar of the utility model design, by common light path integrated design, share Receiver aperture and spectral analysis device, save the elements such as optical filter, finally reach the objects such as volume is little, lightweight, compact conformation.
Accompanying drawing explanation
Fig. 1 is hyperspectral imager principle schematic;
Fig. 2 is laser radar principle schematic;
Fig. 3 is the utility model structural representation.
Embodiment
Further principle of work of the present utility model and the course of work are described below in conjunction with accompanying drawing.
As shown in Figure 3, a kind of EO-1 hyperion of the utility model and the laser radar integrated beam splitting system of light path altogether, comprise echo signal reception mirror 1, slit 2, collimating mirror 3, spectro-grating 4, focus lamp 5, range finding photodetector 6, imaging electric explorer 7;
Include the EO-1 hyperion signal of laser radar echo after echo signal reception mirror 1, the slit 2 arranged by image planes place, by the flashlight of slit 2, directional light is become after collimating mirror 3, after spectro-grating 4, the directional light of different wave length is to specific direction propagation separately, and after line focus mirror 5, the slit image of different wave length is in the image planes of focus lamp 5;
Range finding photodetector 6 is positioned at the image planes position of focus lamp 5, for receiving the picture that laser radar echo becomes herein; Imaging electric explorer 7 is positioned at the image planes position of focus lamp 5, for receiving ultraviolet-visible-near-infrared spectrum picture.
Range finding photodetector 6 adopts unit AP D detector or PMT detector or array APD or array PMT detector; Described imaging electric explorer 7 adopts CCD or CMOS planar array detector.
The wavelength of usual range laser radar is in 800nm ~ 2000nm infrared band.Suppose to use 1064nm wavelength, then at spectrometer 1064nm diaphragm (or slit) as place, the Electro-Optical Sensor Set 4 (as APD, PMT, coupling fiber APD array etc.) arranged for receiving range laser echo carries out ranging signal reception.Arranging imaging detector 5 (as CCD, CMOS etc.) at ultraviolet-visible-near-infrared spectrum as region carries out spectral signal reception simultaneously.
The utility model through expert evaluation, and in the middle of the corresponding model be applied to, achieves good technique effect.
The unspecified part of the utility model belongs to general knowledge as well known to those skilled in the art.
Claims (2)
1. EO-1 hyperion and the laser radar integrated beam splitting system of light path altogether, is characterized in that comprising echo signal reception mirror (1), slit (2), collimating mirror (3), spectro-grating (4), focus lamp (5), range finding photodetector (6), imaging electric explorer (7);
Include the EO-1 hyperion signal of laser radar echo after echo signal reception mirror (1), the slit (2) arranged by image planes place, by the flashlight of slit (2), directional light is become after collimating mirror (3), after spectro-grating (4), the directional light of different wave length is propagated to specific direction separately, and the slit image of line focus mirror (5) different wave length is afterwards in the image planes of focus lamp (5);
Range finding photodetector (6) is positioned at the image planes position of focus lamp (5), for receiving the picture that laser radar echo becomes herein; Imaging electric explorer (7) is positioned at the image planes position of focus lamp (5), for receiving ultraviolet-visible-near-infrared spectrum picture.
2. a kind of EO-1 hyperion according to claim 1 and the laser radar integrated beam splitting system of light path altogether, is characterized in that: described range finding photodetector (6) employing unit AP D detector or PMT detector or array APD or array PMT detector; Described imaging electric explorer (7) adopts CCD or CMOS planar array detector.
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372778A (en) * | 2015-12-07 | 2016-03-02 | 中国北方车辆研究所 | High-efficiency laser receiving optical structure |
| CN105911534A (en) * | 2016-04-12 | 2016-08-31 | 中国科学院上海光学精密机械研究所 | Optical filtering device with transmittance changing along with receiving visual field angle |
| CN106772420A (en) * | 2017-02-28 | 2017-05-31 | 苏州四百克拉光电科技有限公司 | The continuous ray laser radar system of EO-1 hyperion of finely ground particles detection under water |
| CN107765261A (en) * | 2017-11-10 | 2018-03-06 | 常熟市浙大紫金光电技术研究中心 | All band three-dimensional EO-1 hyperion laser radar |
| CN107870335A (en) * | 2017-11-06 | 2018-04-03 | 上海航天测控通信研究所 | The three-dimensional composite imaging method of EO-1 hyperion laser, system and nobody from the device that navigates |
| CN108196243A (en) * | 2018-03-14 | 2018-06-22 | 北京因泰立科技有限公司 | A kind of 3-D scanning laser radar based on MEMS micromirror |
| CN108332855A (en) * | 2018-05-16 | 2018-07-27 | 德州尧鼎光电科技有限公司 | A kind of hyperspectral imager device of Wavelength tunable |
| CN108507677A (en) * | 2017-02-27 | 2018-09-07 | 北京航空航天大学 | It is a kind of to synchronize the detection system for obtaining single-point spectrum and three-dimensional data |
| CN109342328A (en) * | 2018-10-11 | 2019-02-15 | 中国科学院西安光学精密机械研究所 | A kind of built-in scan type high microspectrum imaging system and imaging method |
| CN110031819A (en) * | 2019-04-09 | 2019-07-19 | 西安理工大学 | The Dual-channel type atmospheric sounding EO-1 hyperion laser radar beam splitting system being protected from light with camera bellows |
| CN111089848A (en) * | 2019-12-31 | 2020-05-01 | 哈尔滨工业大学 | Three-dimensional laser gas scanner |
| CN111413070A (en) * | 2020-04-13 | 2020-07-14 | 蔚海光学仪器（上海）有限公司 | Brightness detection device and detection method thereof |
| CN111913165A (en) * | 2019-05-08 | 2020-11-10 | 宁波舜宇车载光学技术有限公司 | Detection system and detection method thereof |
| CN112147639A (en) * | 2020-07-17 | 2020-12-29 | 中国工程物理研究院应用电子学研究所 | MEMS one-dimensional laser radar and digital camera surveying and mapping device and method |
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2015
- 2015-03-25 CN CN201520173212.XU patent/CN204575853U/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372778A (en) * | 2015-12-07 | 2016-03-02 | 中国北方车辆研究所 | High-efficiency laser receiving optical structure |
| CN105911534A (en) * | 2016-04-12 | 2016-08-31 | 中国科学院上海光学精密机械研究所 | Optical filtering device with transmittance changing along with receiving visual field angle |
| CN105911534B (en) * | 2016-04-12 | 2018-11-20 | 中国科学院上海光学精密机械研究所 | The optical filtering apparatus that transmitance changes with field of view of receiver angle |
| CN108507677A (en) * | 2017-02-27 | 2018-09-07 | 北京航空航天大学 | It is a kind of to synchronize the detection system for obtaining single-point spectrum and three-dimensional data |
| CN106772420A (en) * | 2017-02-28 | 2017-05-31 | 苏州四百克拉光电科技有限公司 | The continuous ray laser radar system of EO-1 hyperion of finely ground particles detection under water |
| CN107870335A (en) * | 2017-11-06 | 2018-04-03 | 上海航天测控通信研究所 | The three-dimensional composite imaging method of EO-1 hyperion laser, system and nobody from the device that navigates |
| CN107765261A (en) * | 2017-11-10 | 2018-03-06 | 常熟市浙大紫金光电技术研究中心 | All band three-dimensional EO-1 hyperion laser radar |
| CN108196243A (en) * | 2018-03-14 | 2018-06-22 | 北京因泰立科技有限公司 | A kind of 3-D scanning laser radar based on MEMS micromirror |
| CN108332855A (en) * | 2018-05-16 | 2018-07-27 | 德州尧鼎光电科技有限公司 | A kind of hyperspectral imager device of Wavelength tunable |
| CN109342328A (en) * | 2018-10-11 | 2019-02-15 | 中国科学院西安光学精密机械研究所 | A kind of built-in scan type high microspectrum imaging system and imaging method |
| CN110031819A (en) * | 2019-04-09 | 2019-07-19 | 西安理工大学 | The Dual-channel type atmospheric sounding EO-1 hyperion laser radar beam splitting system being protected from light with camera bellows |
| CN110031819B (en) * | 2019-04-09 | 2023-02-03 | 西安理工大学 | Double-channel type atmosphere hyperspectral laser radar light splitting system with dark box and light shielding function |
| CN111913165A (en) * | 2019-05-08 | 2020-11-10 | 宁波舜宇车载光学技术有限公司 | Detection system and detection method thereof |
| CN111089848A (en) * | 2019-12-31 | 2020-05-01 | 哈尔滨工业大学 | Three-dimensional laser gas scanner |
| CN111413070A (en) * | 2020-04-13 | 2020-07-14 | 蔚海光学仪器（上海）有限公司 | Brightness detection device and detection method thereof |
| CN112147639A (en) * | 2020-07-17 | 2020-12-29 | 中国工程物理研究院应用电子学研究所 | MEMS one-dimensional laser radar and digital camera surveying and mapping device and method |
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