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    In-flight multiple field of view detector for supercooled airborne water droplets
    1.
    发明公开
    In-flight multiple field of view detector for supercooled airborne water droplets 有权
    对于飞行期间空气过冷水滴视图检测器的多个场

    公开(公告)号：EP2277776A3

    公开(公告)日：2011-11-30

    申请号：EP10005278.6

    申请日：2010-05-20

    Applicant: Rosemount Aerospace Inc.

    Inventor： Ray, Mark D. ,  Nesnidal, Michael P.

    IPC: B64D15/20

    CPC classification number: B64D15/20

    Abstract: An airborne multiple field-of-view water droplet sensor includes an illumination portion and a detection portion. The illumination portion includes a first optical beam emitter configured to output a light beam. The detection portion includes a kaleidoscope configured to channel a first portion of the backscattered light towards an inner reflective surface of a circle-to-line converter, a multiple field of view subsystem having at least a first detector configured to receive light reflected by the circle-to-line converter, and a single field-of-view subsystem configured to receive a second portion of the backscattered light, the second portion not having been reflected by the circle-to-line converter. The single field-of-view subsystem may include a dual channel circular polarization detector for distinguishing between liquid water droplets and ice crystals based on information in the single field-of-view.

    Apparatus and method for in-flight detection of airborne water droplets and ice crystals
    3.
    发明公开
    Apparatus and method for in-flight detection of airborne water droplets and ice crystals 有权
    装置和方法用于在飞行期间检测水滴和冰晶的空气中的

    公开(公告)号：EP2184232A3

    公开(公告)日：2011-06-22

    申请号：EP09012476.9

    申请日：2009-10-01

    Applicant: Rosemount Aerospace Inc.

    Inventor： Ray, Mark D. ,  Nesnidal, Michael P. ,  Socha, David M.

    IPC: B64D15/20

    CPC classification number: B64D15/20

    Abstract: A device for optically detecting and distinguishing airborne liquid water droplets and ice crystals includes an illumination portion and a detection portion. The illumination portion (312) outputs a circularly polarized illuminating beam (318). The detection portion receives circularly polarized backscattered light from moisture in the cloud, in response to the illuminating beam. The circularly polarized backscattered light (322) is passed through a circular polarizer (333) to convert it into linearly polarized backscattered light, which is split into two components. Each of the two components is optionally subject to further linear polarization to filter out any leakage-type orthogonal polarization. The two components are then optically detected and the resulting detection signals are used to calculate one or more parameters reflective of the presence or absence of airborne ice crystals and/or water droplets.

    A block arrangement of optical elements for a lidar system
    5.
    发明公开
    A block arrangement of optical elements for a lidar system 有权
    Blockanordnung von optischen Elementenfürein激光雷达系统

    公开(公告)号：EP1602942A1

    公开(公告)日：2005-12-07

    申请号：EP05076808.4

    申请日：2002-07-18

    Applicant: ROSEMOUNT AEROSPACE INC.

    Inventor： Jamieson, James R. ,  Ray, Mark D. ,  Meneely, Clinton T.

    IPC: G01S17/93

    CPC classification number: G01S17/58 ,  B64D45/08 ,  G01C23/005 ,  G01P5/26 ,  G01S7/4802 ,  G01S7/481 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/483 ,  G01S17/42 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933

    Abstract: A block arrangement of optical elements is provided for use as a transmitter/receiver for a light detection and ranging (LIDAR) system. The block arrangement comprises:

    a plurality of glass modules aligned together as a block to form a plurality of optical paths therein and secured together to maintain said alignment;
    a collimated light source secured to said block for generating a coherent beam of light over at least one optical path in said block which guides said coherent beam of light to an exit point of said block; and
    a light detector secured to said block.

    The block serves for receiving a return coherent beam of light and is configured to conduct said return coherent beam of light to the light detector over at least one other optical path formed in said block.

    Abstract translation: 提供光学元件的块布置用作光检测和测距（LIDAR）系统的发射器/接收器。 块布置包括：多个玻璃模块，其一起排列成块，以在其中形成多个光路，并固定在一起以保持所述对准; 准直的光源，固定到所述块，用于在所述块中的至少一个光路上产生相干的光束，其将所述相干光束引导到所述块的出口点; 以及固定到所述块的光检测器。 该块用于接收返回的相干光束，并且被配置为通过形成在所述块中的至少一个其它光路将所述返回相干光束传导到光检测器。

    Distributed laser obstacle awareness system
    6.
    发明公开
    Distributed laser obstacle awareness system 审中-公开
    分布式激光障碍物探测系统

    公开(公告)号：EP1348981A3

    公开(公告)日：2003-11-19

    申请号：EP03251639.5

    申请日：2003-03-18

    Applicant: ROSEMOUNT AEROSPACE INC.

    Inventor： Jamieson, James R. ,  Ray, Mark D.

    IPC: G01S17/93 ,  G01S7/486

    CPC classification number: G01S7/4818 ,  B64D45/08 ,  G01C23/005 ,  G01P5/26 ,  G01S7/4812 ,  G01S7/4813 ,  G01S7/4817 ,  G01S7/483 ,  G01S7/486 ,  G01S7/51 ,  G01S17/42 ,  G01S17/58 ,  G01S17/87 ,  G01S17/88 ,  G01S17/933

    Abstract: A distributed laser based obstacle awareness system for use on-board an aircraft comprises: a plurality of obstacle detecting sensors disposable at a corresponding plurality of locations of the aircraft for emitting laser energy from the aircraft into a predetermined region of space and for receiving return laser energy from an obstacle in the predetermined region of space; a laser source for emitting a laser beam along an optical path; and a plurality of bistatic optical channels. Each channel comprises a plurality of transmission fiber optic cables and at least one receiver fiber optic cable and extends from the laser source to a corresponding obstacle detecting sensor of the plurality to direct the laser beam from the optical path to its corresponding obstacle detecting sensor of the plurality for emission into the corresponding predetermined region of space; and a light detector. Return laser energy from an obstacle received by any one of the obstacle detecting sensors is propagated through the receiver fiber optic cable of the corresponding optical channel to the light detector for use in detection of the obstacle in the corresponding predetermined region of space. In one embodiment, an optical switch is disposed in the optical path to redirect the laser beam in a time sequence manner from the optical path to selected optical channels of the plurality.

    In-flight multiple field of view detector for supercooled airborne water droplets
    8.
    发明公开
    In-flight multiple field of view detector for supercooled airborne water droplets 有权
    用于过冷空气中水滴的飞行中多视场探测器

    公开(公告)号：EP2277776A2

    公开(公告)日：2011-01-26

    申请号：EP10005278.6

    申请日：2010-05-20

    Applicant: Rosemount Aerospace Inc.

    Inventor： Ray, Mark D. ,  Nesnidal, Michael P.

    IPC: B64D15/20

    CPC classification number: B64D15/20

    Abstract: An airborne multiple field-of-view water droplet sensor includes an illumination portion and a detection portion. The illumination portion includes a first optical beam emitter configured to output a light beam. The detection portion includes a kaleidoscope configured to channel a first portion of the backscattered light towards an inner reflective surface of a circle-to-line converter, a multiple field of view subsystem having at least a first detector configured to receive light reflected by the circle-to-line converter, and a single field-of-view subsystem configured to receive a second portion of the backscattered light, the second portion not having been reflected by the circle-to-line converter. The single field-of-view subsystem may include a dual channel circular polarization detector for distinguishing between liquid water droplets and ice crystals based on information in the single field-of-view.

    Abstract translation: 空中多视野水滴传感器包括照射部分和检测部分。 照射部分包括被配置为输出光束的第一光束发射器。 所述检测部分包括配置成将所述背散射光的第一部分朝向圆线到线转换器的内部反射表面引导的万花筒，具有至少第一检测器的多视场子系统，所述第一检测器被配置为接收由所述圆所反射的光 以及被配置为接收反向散射光的第二部分的单个视场子系统，所述第二部分未被所述圆线到线转换器反射。 单个视场子系统可以包括双通道圆偏振检测器，用于基于单个视场中的信息来区分液态水滴和冰晶。

    Light detection and ranging system
    10.
    发明公开
    Light detection and ranging system 有权
    Lichterkennungs-和-entfernungsmessungssystem

    公开(公告)号：EP2065724A3

    公开(公告)日：2009-08-12

    申请号：EP08253634.3

    申请日：2008-11-06

    Applicant: Rosemount Aerospace Inc.

    Inventor： Ray, Mark D. ,  Swenson, James W. ,  Meneely, Clinton T.

    IPC: G01S7/481 ,  G01S7/497 ,  G01S17/42

    CPC classification number: G01S7/4972 ,  G01S7/4812 ,  G01S7/4817 ,  G01S17/42

    Abstract: A light detection and ranging system includes a mirror unit rotating around a scan axis. The mirror unit includes a receiving portion and a transmitting portion offset by an angle about the scan axis relative to a surface plane of the receiving portion. Respective centroids of the receiving and transmitting portions are positioned at a common point on the scan axis while the receiving and transmitting portions rotate around the scan axis. A transmitter transmits a light pulse toward the mirror unit. The transmitting portion is positioned to reflect the light pulse toward a target. A receiver is positioned to reflect the light pulse reflected from the target toward the receiver. The angle offset compensates for a change between a cone of illumination of the transmitting portion and a field-of-view of the receiving portion resulting from the rotation of the mirror unit.

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