Diode-pumped solid-state ring laser gyroscope
    1.
    发明授权
    Diode-pumped solid-state ring laser gyroscope 失效
    二极管泵浦固态环形激光陀螺仪

    公开(公告)号:US5960022A

    公开(公告)日:1999-09-28

    申请号:US765594

    申请日:1997-11-10

    摘要: The invention concerns a diode-pumped solid-state ring laser gyroscope consisting of a diode-pumped solid-state laser made from a doped crystal or glass in the form of a square or cube for monoaxial or triaxial measurements; limitation and stabilization of the laser mode is achieved by precise matching of the pumping radiation to the mode volume of the ring laser. Outcoupling of the laser radiation is done by making the light tunnel through a slit to a dielectric plate which is moved by an actuator. Frequency modulation of the signal is done as required by coupling an acoustic wave into the laser medium or by precise spatial modulation of the diode excitation.

    摘要翻译: PCT No.PCT / EP96 / 00517 371日期:1997年11月10日 102(e)日期1997年11月10日PCT提交1996年2月8日PCT公布。 公开号WO96 / 24971 日期1996年8月15日本发明涉及一种二极管泵浦固态环形激光陀螺仪,由用于单轴或三轴测量的方形或立方体形式的掺杂晶体或玻璃制成的二极管泵浦固体激光器组成; 激光模式的限制和稳定通过泵浦辐射与环形激光器的模式体积的精确匹配来实现。 激光辐射的外耦合通过使光通道穿过狭缝到通过致动器移动的电介质板来完成。 通过将声波耦合到激光介质中或通过二极管激励的精确空间调制,根据需要进行信号的频率调制。

    Method And Lidar System For Measuring Air Turbulences On Board Aircraft And For Airports And Wind Farms
    2.
    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
    5.
    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
    6.
    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
    7.
    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
    8.
    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。

    Method and apparatus for detecting wind velocities by means of a doppler-lidar system
    9.
    发明授权
    Method and apparatus for detecting wind velocities by means of a doppler-lidar system 有权
    通过多普勒激光雷达系统检测风速的方法和装置

    公开(公告)号:US07463341B2

    公开(公告)日:2008-12-09

    申请号:US10552067

    申请日:2004-04-03

    IPC分类号: G01P3/36

    摘要: In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backscattered from the space area is received by means of a receiving telescope (13). For determining a Doppler shift, an interferogram is generated by means of an interferometer (16), the intensity distribution of the interferogram being directly measured by means of a photodetector (17). The measured intensity distribution is compared with one or more reference patterns which had previously been determined for defined parameters and are filed in a memory device (18a). From the comparison, the Doppler shift is determined as a measurement for the wind velocity. The Doppler-lidar system (10) comprises an analyzing unit (18a, 18b) for implementing the method, having a comparison unit (18b) for the comparison of reference patterns with the measured interferogram.

    摘要翻译: 在通过多普勒激光雷达系统(10)检测风速的方法的情况下,通过激光器(11)产生的定义频率的激光束由发射装置(12)朝向空间 区域,并且通过接收望远镜(13)接收从空间区域反向散射的光。 为了确定多普勒频移,通过干涉仪(16)产生干涉图,干涉图的强度分布通过光电检测器(17)直接测量。 将测量的强度分布与先前已经针对限定的参数确定并存储在存储器件(18a)中的一个或多个参考图案进行比较。 从比较中,多普勒频移被确定为风速的测量。 多普勒激光雷达系统(10)包括用于实现该方法的分析单元(18a,18b),具有用于将参考图案与所测量的干涉图进行比较的比较单元(18b)。

    Method and apparatus for detecting wind velocities by means of a doppler-lidar system
    10.
    发明申请
    Method and apparatus for detecting wind velocities by means of a doppler-lidar system 有权
    通过多普勒激光雷达系统检测风速的方法和装置

    公开(公告)号:US20070171397A1

    公开(公告)日:2007-07-26

    申请号:US10552067

    申请日:2004-04-03

    IPC分类号: G01P3/36 G01N21/00

    摘要: In the case of a method of detecting wind velocities by means of a Doppler-lidar system (10), a laser beam of a defined frequency generated by means of a laser (11) is emitted by a transmitting device (12) toward a space area and the light backscattered from the space area is received by means of a receiving telescope (13). For determining a Doppler shift, an interferogram is generated by means of an interferometer (16), the intensity distribution of the interferogram being directly measured by means of a photodetector (17). The measured intensity distribution is compared with one or more reference patterns which had previously been determined for defined parameters and are filed in a memory device (18a). From the comparison, the Doppler shift is determined as a measurement for the wind velocity. The Doppler-lidar system (10) comprises an analyzing unit (18a, 18b) for implementing the method, having a comparison unit (18b) for the comparison of reference patterns with the measured interferogram.

    摘要翻译: 在通过多普勒激光雷达系统(10)检测风速的方法的情况下,通过激光器(11)产生的定义频率的激光束由发射装置(12)朝向空间 区域,并且通过接收望远镜(13)接收从空间区域反向散射的光。 为了确定多普勒频移,通过干涉仪(16)产生干涉图,干涉图的强度分布通过光电检测器(17)直接测量。 将测量的强度分布与先前已经针对限定的参数确定并存储在存储器件(18a)中的一个或多个参考图案进行比较。 从比较中,多普勒频移被确定为风速的测量。 多普勒激光雷达系统(10)包括用于实现该方法的分析单元(18a,18b),具有用于比较参考图形与所测量的干涉图的比较单元(18b)。