Method And Lidar System For Measuring Air Turbulences On Board Aircraft And For Airports And Wind Farms
    6.
    发明申请
    Method And Lidar System For Measuring Air Turbulences On Board Aircraft And For Airports And Wind Farms 有权
    用于测量机上和机场和风电场的空气湍流的方法和激光雷达系统

    公开(公告)号:US20090310118A1

    公开(公告)日:2009-12-17

    申请号:US11996210

    申请日:2006-07-19

    IPC分类号: G01P3/36 G01N21/00

    摘要: The invention relates to a method for measuring air turbulences with a lidar system, particularly on board aircraft during which a pulsed expanded laser beam (12) of a predetermined wavelength is emitted up to a spatial area and light backscattered from this spatial area is received. At a first point in time t1 and at a second point in time t2 after emitting a laser pulse (L), the intensity distribution in the cross-section of the backscattered light is measured, and an air turbulence in a measuring field defined by points in time t1 and t2 is determined from the comparison of both intensity distributions. Images of speckle patterns are recorded with the aid of cameras (21, 22). An evaluation unit (30) conducts a cross correlation in order to render the turbulence visible and to display it on a monitor (35).

    摘要翻译: 本发明涉及一种用激光雷达系统测量空气湍流的方法,特别是在飞机上,其中接收到预定波长的脉冲扩展激光束(12)发射到空间区域并从该空间区域反射的光。 在第一时间点t1和发射激光脉冲(L)之后的第二时间点t2,测量背散射光的横截面中的强度分布,并且由点定义的测量场中的空气湍流 在时间t1和t2根据两个强度分布的比较来确定。 利用照相机(21,22)记录斑点图案的图像。 评估单元(30)进行互相关以使湍流可见并将其显示在监视器(35)上。

    Method, device and laser system for producing screen holograms, and screen hologram
    7.
    发明授权
    Method, device and laser system for producing screen holograms, and screen hologram 有权
    用于生产屏幕全息图的方法,设备和激光系统以及屏幕全息图

    公开(公告)号:US06982817B1

    公开(公告)日:2006-01-03

    申请号:US10031438

    申请日:2000-07-06

    IPC分类号: G03H1/26

    摘要: In a method of producing video screen holograms, a real video screen is illuminated by means of a narrowband light for producing a hologram of the real video screen. A plurality of individual recordings is carried out, each covering only a partial area of the real video screen being imaged in the hologram. The individual recordings take place, for example, by means of a scanning pulsed laser beam. The individual recordings are assembled to form the video screen hologram of the entire video screen. A recording device for this purpose comprises a scanning device for guiding the light radiation over the video screen and a light source which generates pulsed light radiation. The light source is, for example, a laser system with a pulsed q-switched oscillator and with an optical parametric oscillator.

    摘要翻译: 在制作视频屏幕全息图的方法中,通过窄带光照射真正的视频屏幕,以产生真正的视频屏幕的全息图。 执行多个单独记录,每个记录仅覆盖在全息图中成像的实际视频屏幕的部分区域。 单独的记录例如通过扫描脉冲激光束进行。 单独的记录被组合以形成整个视频屏幕的视频屏幕全息图。 用于此目的的记录装置包括用于将光辐射引导到视频屏幕上的扫描装置和产生脉冲光辐射的光源。 光源是例如具有脉冲q开关振荡器和光学参量振荡器的激光系统。

    Optical sensor device using a dielectric transparent spherical-shell
section
    8.
    发明授权
    Optical sensor device using a dielectric transparent spherical-shell section 失效
    使用介质透明球形部分的光学传感器装置

    公开(公告)号:US5103088A

    公开(公告)日:1992-04-07

    申请号:US548251

    申请日:1990-07-05

    IPC分类号: G01S3/781

    CPC分类号: G01S3/781

    摘要: An optical sensor device for recognizing optical irradiation and detecting its direction is constructed as a spherical-shell section from dielectric, optically transparent material. The irradiation penetrating into the spherical-shell section is reflected back and forth between the exterior and the interior surface or between a mirror and a thin shell via an air gap or vacuum gap, and is thus deflected to the shell edge. Since signals of different intensities are received at the irradiation detector at the beam edge according to the direction of incidence, the direction of incidence of the irradiation can be determined from the relationship of the signals.

    摘要翻译: 用于识别光照射并检测其方向的光学传感器装置由电介质光学透明材料构成为球壳部分。 穿透球壳部分的辐射通过气隙或真空间隙在外表面和内表面之间或反射镜和薄壳体之间来回反射,并因此被偏转到壳体边缘。 由于根据入射方向在光束边缘处的照射检测器处接收到不同强度的信号,所以可以根据信号的关系来确定照射的入射方向。

    Detection and imaging of objects in scattering media by light irradiation
    9.
    发明授权
    Detection and imaging of objects in scattering media by light irradiation 失效
    通过光照射检测和成像散射介质中的物体

    公开(公告)号:US4555179A

    公开(公告)日:1985-11-26

    申请号:US439867

    申请日:1982-11-08

    摘要: A method and system are described for the detection and imaging of objects and structures in scattering media using light radiation. The medium is scanned with a strongly collimated light beam (2). The light power (P.sub.b) scattered backward from the medium is detected by a receiver (17) and plotted along the scanning path. Objects (4) buried in the medium (9) are detected by the differential variation of the received light power. Information as to the size, location and depth of the objects can be obtained. The illumination by strongly collimated laser light at one or several wavelengths is preferred.

    摘要翻译: 描述了用于使用光辐射在散射介质中的物体和结构的检测和成像的方法和系统。 用强烈准直的光束(2)扫描介质。 从介质向后散射的光功率(Pb)由接收器(17)检测并沿着扫描路径绘制。 掩埋在介质(9)中的物体(4)通过接收光功率的差异变化来检测。 可以获得关于物体的尺寸,位置和深度的信息。 通过强度准直的激光在一个或几个波长处的照明是优选的。

    Method and lidar system for measuring air turbulences on board aircraft and for airports and wind farms
    10.
    发明授权
    Method and lidar system for measuring air turbulences on board aircraft and for airports and wind farms 有权
    用于测量飞机和机场和风力发电场的空气湍流的方法和激光雷达系统

    公开(公告)号:US07933002B2

    公开(公告)日:2011-04-26

    申请号:US11996210

    申请日:2006-07-19

    IPC分类号: G01P3/36

    摘要: The invention relates to a method for measuring air turbulences with a lidar system, particularly on board aircraft during which a pulsed expanded laser beam (12) of a predetermined wavelength is emitted up to a spatial area and light backscattered from this spatial area is received. At a first point in time t1 and at a second point in time t2 after emitting a laser pulse (L), the intensity distribution in the cross-section of the backscattered light is measured, and an air turbulence in a measuring field defined by points in time t1 and t2 is determined from the comparison of both intensity distributions. Images of speckle patterns are recorded with the aid of cameras (21, 22). An evaluation unit (30) conducts a cross correlation in order to render the turbulence visible and to display it on a monitor (35).

    摘要翻译: 本发明涉及一种用激光雷达系统测量空气湍流的方法,特别是在飞机上,其中接收到预定波长的脉冲扩展激光束(12)发射到空间区域并从该空间区域反射的光。 在第一时间点t1和发射激光脉冲(L)之后的第二时间点t2,测量背散射光的横截面中的强度分布,并且由点定义的测量场中的空气湍流 在时间t1和t2根据两个强度分布的比较来确定。 利用照相机(21,22)记录斑点图案的图像。 评估单元(30)进行互相关以使湍流可见并将其显示在监视器(35)上。