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1. 发明申请

WO2013177650A8 HIGH SPEED 360 DEGREE SCANNING LIDAR HEAD 审中-公开
标题翻译：高速360度扫描激光头
公开(公告)号：WO2013177650A8
公开(公告)日：2014-11-20
申请号：PCT/CA2012000380
申请日：2012-04-26
申请人： NEPTEC DESIGN GROUP LTD , ZHU XIANG
发明人： ZHU XIANG
IPC分类号： G02B26/08 , G01S7/481 , G01S17/08 , G01S17/36
CPC分类号： G01S7/4817 , G01S7/481 , G01S7/4812 , G01S17/08 , G01S17/10 , G01S17/36 , G01S17/42 , G02B26/0883 , G02B26/101 , G02B26/105 , G02B26/108
摘要： A head for directing radiated energy from a source to a coordinate in a field of view defined by at least one of azimuth and elevation, comprises an angled element and a planar reflecting element. The angled element rotates about a first axis and redirects the beam, the redirection of the angled element differing in at least one of direction and extent as it is rotated. The reflecting surface rotates about a second axis parallel to the first. An axis normal to the surface extends at an angle to the second axis. The reflecting surface receives the redirected beam at a point thereon and reflects it in a direction within the FOV. A rotator may be positioned between the source and the angled element to support and independently rotate the angled element and the reflecting surface about the first and second axes without impeding the energy.
摘要翻译：用于将辐射能量从源到视场中的至少一个方位角和仰角定义的视场中指向头部的头包括倾斜元件和平面反射元件。倾斜元件围绕第一轴线旋转并且重定向梁，当倾斜元件被旋转时，倾斜元件的重定向在至少一个方向和范围上不同。反射面围绕平行于第一轴线的第二轴线旋转。垂直于表面的轴线以与第二轴线成一角度延伸。反射表面在其上的一个点处接收重定向的光束，并将其反射在FOV内的方向上。旋转器可以定位在源和成角度元件之间，以支撑并独立地旋转成角度的元件和反射表面围绕第一和第二轴线而不阻碍能量。

2. 发明专利

CA2871502A1 HIGH SPEED 360 DEGREE SCANNING LIDAR HEAD 未知
公开(公告)号：CA2871502A1
公开(公告)日：2013-12-05
申请号：CA2871502
申请日：2012-04-26
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G02B26/08 , G01S7/481 , G01S17/08 , G01S17/36
摘要： A head for directing radiated energy from a source to a coordinate in a field of view defined by at least one of azimuth and elevation, comprises an angled element and a planar reflecting element. The angled element rotates about a first axis and redirects the beam, the redirection of the angled element differing in at least one of direction and extent as it is rotated. The reflecting surface rotates about a second axis parallel to the first. An axis normal to the surface extends at an angle to the second axis. The reflecting surface receives the redirected beam at a point thereon and reflects it in a direction within the FOV. A rotator may be positioned between the source and the angled element to support and independently rotate the angled element and the reflecting surface about the first and second axes without impeding the energy.

3. 发明专利

CA2815393A1 WIDE ANGLE BISTATIC SCANNING OPTICAL RANGING SENSOR 未知
公开(公告)号：CA2815393A1
公开(公告)日：2012-04-26
申请号：CA2815393
申请日：2011-10-18
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G01S17/08 , G01B11/24 , G01S7/481 , G01S17/10
摘要： A sensor for determining a profile of an object surface relative to a reference plane comprises a radiation source, a collector, a processor, first and second reflectors and at least one reflective element comprising third and fourth reflectors secured in mutual angular relation. The radiation source projects a launch beam for impingement onto the object surface. The collector detects at least a portion of a return beam reflected by the object surface. The processor determines the profile of the object surface at a point of impingement of the launch beam onto the object surface from at least one characteristic of the at least a portion of the return beam. The first reflector has first and second opposed reflecting surfaces. The first reflecting surface reflects the launch beam along a first path and the second reflecting surface reflects the return beam along a second path parallel to and opposed in direction to the first path. The first reflector is rotatable about a first axis normal to the reference plane, for controlling impingement of the launch beam on the object surface along a second axis parallel to the reference plane and normal to the first axis. The second reflector has a planar reflecting surface for reflecting the launch beam onto the object surface and for reflecting the return beam arriving from the object surface. It is rotatable along the second axis for controlling impingement of the launch beam on the object surface along the first axis. The at least one reflective element is disposed to be impinged upon by the launch beam between the first and second reflectors. The third reflector has a planar reflecting surface for receiving the launch beam after it is reflected off the first reflecting surface of the first reflector and reflecting it onto the fourth reflector. The fourth reflector has a planar reflecting surface for reflecting the launch beam onto the reflecting surface of the second reflector for reflection onto the object surface. In some example embodiments, the at least one reflective element has a refractive boundary, through which the launch beam passes after reflection off the fourth reflector and before reflection onto the object surface that causes the launch beam, if incident on the refractive boundary at an angle to a normal axis of the boundary, to be refracted past the boundary at an increased angle. In some example embodiments, a first end of the third reflector is located proximate to the first axis and the refractive boundary is substantially parallel to the reference plane.

4. 发明公开

EP2856240A4 HIGH SPEED 360 DEGREE SCANNING LIDAR HEAD 审中-公开
标题翻译：激光雷达头可快速360度跟踪
公开(公告)号：EP2856240A4
公开(公告)日：2016-03-02
申请号：EP12878134
申请日：2012-04-26
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G01S7/481 , G01S17/08 , G01S17/10 , G01S17/36 , G01S17/42 , G02B26/08 , G02B26/10
CPC分类号： G01S7/4817 , G01S7/481 , G01S7/4812 , G01S17/08 , G01S17/10 , G01S17/36 , G01S17/42 , G02B26/0883 , G02B26/101 , G02B26/105 , G02B26/108
摘要： A head for directing radiated energy from a source to a coordinate in a field of view defined by at least one of azimuth and elevation, comprises an angled element and a planar reflecting element. The angled element rotates about a first axis and redirects the beam, the redirection of the angled element differing in at least one of direction and extent as it is rotated. An axis normal to the surface extends at an angle to the second axis. The reflecting surface receives the redirected beam at a point thereon and reflects it in a direction within the FOV. A rotator may be positioned between the source and the angled element to support and independently rotate the angled element and the reflecting surface about the first and second axes without impeding the energy.

5. 发明专利

CA2742687A1 RETURN PULSE SHAPE ANALYSIS FOR FALLING EDGE OBJECT DISCRIMINATION OF AEROSOL LIDAR 未知
公开(公告)号：CA2742687A1
公开(公告)日：2010-05-14
申请号：CA2742687
申请日：2008-11-05
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG , GAGNON STEPHANE LOUIS
IPC分类号： G01S13/10 , B64D45/04 , G01S7/292 , G01S17/10
摘要： A LIDAR optical remote sensing system and method is disclosed. The system and method analyzes the falling edge profile of a return LIDAR signal that may be indicative of an object or an aerosol cloud, which is generally more diffuse. Use of the falling edge profile permits burnthrough to an object that may be obscured by the aerosol cloud. The profile is compared against at least one threshold that may correspond, in various embodiments, to a negative slope of the falling edge, an integrated power under the falling edge, or a range estimate error for varying transmitted power values, varying transmitted pulse lengths and/or varying receiver detector field of view values.

6. 发明专利

CA2815393C WIDE ANGLE BISTATIC SCANNING OPTICAL RANGING SENSOR 未知
公开(公告)号：CA2815393C
公开(公告)日：2019-02-19
申请号：CA2815393
申请日：2011-10-18
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G01S17/08 , G01B11/24 , G01S7/481 , G01S17/10
摘要： A sensor comprises a reflective element between first and second reflectors, comprising third and fourth reflectors in mutual angular relation. The first reflector has opposed surfaces, reflecting a beam and its return along opposed direction paths and is rotatable about a first axis normal to a plane, for impingement of a beam along a second axis parallel to the plane (normal to the first axis). The second reflector reflects both the beam onto an object and a return and is rotatable along the second axis. The third reflector reflects the beam from off the first reflector's first surface onto the fourth reflector, onto the second reflector's surface and onto the object. The element has a refractive boundary between the fourth reflector and the object, for refraction at an increased angle. The third reflector's first end is proximate to the first axis and the refractive boundary is parallel to the plane.

7. 发明专利

GB2499159B Wide angle bistatic scanning optical ranging sensor 未知
公开(公告)号：GB2499159B
公开(公告)日：2015-04-15
申请号：GB201309233
申请日：2011-10-18
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G01S17/10 , G01B11/24 , G01S7/481 , G01S17/48

8. 发明专利

GB2499159A Wide angle bistatic scanning optical ranging sensor 未知
公开(公告)号：GB2499159A
公开(公告)日：2013-08-07
申请号：GB201309233
申请日：2011-10-18
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G01S17/10 , G01B11/24 , G01S7/481 , G01S17/48
摘要： A sensor for determining a profile of an object surface relative to a reference plane comprises a radiation source, a collector, a processor, first and second reflectors and at least one reflective element comprising third and fourth reflectors secured in mutual angular relation. The radiation source projects a launch beam for impingement onto the object surface. The collector detects at least a portion of a return beam reflected by the object surface. The processor determines the profile of the object surface at a point of impingement of the launch beam onto the object surface from at least one characteristic of the at least a portion of the return beam. The first reflector has first and second opposed reflecting surfaces. The first reflecting surface reflects the launch beam along a first path and the second reflecting surface reflects the return beam along a second path parallel to and opposed in direction to the first path. The first reflector is rotatable about a first axis normal to the reference plane, for controlling impingement of the launch beam on the object surface along a second axis parallel to the reference plane and normal to the first axis. The second reflector has a planar reflecting surface for reflecting the launch beam onto the object surface and for reflecting the return beam arriving from the object surface. It is rotatable along the second axis for controlling impingement of the launch beam on the object surface along the first axis. The at least one reflective element is disposed to be impinged upon by the launch beam between the first and second reflectors. The third reflector has a planar reflecting surface for receiving the launch beam after it is reflected off the first reflecting surface of the first reflector and reflecting it onto the fourth reflector. The fourth reflector has a planar reflecting surface for reflecting the launch beam onto the reflecting surface of the second reflector for reflection onto the object surface. In some example embodiments, the at least one reflective element has a refractive boundary, through which the launch beam passes after reflection off the fourth reflector and before reflection onto the object surface that causes the launch beam, if incident on the refractive boundary at an angle to a normal axis of the boundary, to be refracted past the boundary at an increased angle. In some example embodiments, a first end of the third reflector is located proximate to the first axis and the refractive boundary is substantially parallel to the reference plane.

9. 发明专利

CA2742687C RETURN PULSE SHAPE ANALYSIS FOR FALLING EDGE OBJECT DISCRIMINATION OF AEROSOL LIDAR 未知
公开(公告)号：CA2742687C
公开(公告)日：2013-07-30
申请号：CA2742687
申请日：2008-11-05
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG , GAGNON STEPHANE LOUIS
IPC分类号： G01S13/10 , B64D45/04 , G01S7/292 , G01S17/10
摘要： A LIDAR optical remote sensing system and method is disclosed. The system and method analyzes the falling edge profile of a return LIDAR signal that may be indicative of an object or an aerosol cloud, which is generally more diffuse. Use of the falling edge profile permits burnthrough to an object that may be obscured by the aerosol cloud. The profile is compared against at least one threshold that may correspond, in various embodiments, to a negative slope of the falling edge, an integrated power under the falling edge, or a range estimate error for varying transmitted power values, varying transmitted pulse lengths and/or varying receiver detector field of view values.

10. 发明专利

CA2871502C HIGH SPEED 360 DEGREE SCANNING LIDAR HEAD 未知
公开(公告)号：CA2871502C
公开(公告)日：2021-06-08
申请号：CA2871502
申请日：2012-04-26
申请人： NEPTEC DESIGN GROUP LTD
发明人： ZHU XIANG
IPC分类号： G02B26/08 , G01S7/481 , G01S17/08 , G01S17/36
摘要： A head for directing radiated energy from a source to a coordinate in a field of view defined by at least one of azimuth and elevation, comprises an angled element and a planar reflecting element. The angled element rotates about a first axis and redirects the beam, the redirection of the angled element differing in at least one of direction and extent as it is rotated. The reflecting surface rotates about a second axis parallel to the first. An axis normal to the surface extends at an angle to the second axis. The reflecting surface receives the redirected beam at a point thereon and reflects it in a direction within the FOV. A rotator may be positioned between the source and the angled element to support and independently rotate the angled element and the reflecting surface about the first and second axes without impeding the energy.

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