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    LASER RADAR WITH REMOTE LOCAL OSCILLATOR
    3.
    发明申请
    LASER RADAR WITH REMOTE LOCAL OSCILLATOR 审中-公开
    具有远程本地振荡器的激光雷达

    公开(公告)号：US20150177379A1

    公开(公告)日：2015-06-25

    申请号：US13841115

    申请日：2013-03-15

    Applicant: NIKON CORPORATION ,  NIKON METROLOGY NV

    Inventor： Daniel G. Smith ,  Eric Peter Goodwin ,  Anthony R. Slotwinski ,  Mina A. Rezk ,  Alexander Cooper ,  Thomas M. Hedges

    IPC: G01S17/32 ,  G01S7/48 ,  G01S17/66

    CPC classification number: G01S17/325 ,  G01B9/02007 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4818 ,  G01S7/4917 ,  G01S7/497 ,  G01S17/42 ,  G01S17/66

    Abstract: Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube.

    Abstract translation: 激光雷达系统包括配置成相对于目标表面扫描测量光束的五棱镜。 聚焦光学组件包括用于调节测量光束聚焦的角立方体。 基于返回波束和本地振荡器波束之间的外差频率来估计目标距离。 本地振荡器束配置成在与返回光束混合之前传播到聚焦光学组件和/或从聚焦光学组件传播。 在一些示例中，使用具有固定到铝硅酸锂玻璃 - 陶瓷管的镜子的法布里 - 珀罗干涉仪来校准相对于目标距离的外差频率。

    ORIENTATION INDEPENDENT FOCUS MECHANISMS FOR LASER RADAR
    5.
    发明申请
    ORIENTATION INDEPENDENT FOCUS MECHANISMS FOR LASER RADAR 有权
    用于激光雷达的方向独立聚焦机制

    公开(公告)号：US20140152972A1

    公开(公告)日：2014-06-05

    申请号：US13833726

    申请日：2013-03-15

    Applicant: Lori L Watson ,  NIKON CORPORATION

    Inventor： Alec Robertson ,  Douglas C. Watson ,  Alexander Cooper

    IPC: G02B7/182 ,  G02B7/18 ,  F16H35/06 ,  G01S7/481

    CPC classification number: F16H35/06 ,  G01S7/4813 ,  G01S7/4818 ,  G01S7/4972 ,  G02B7/08 ,  G02B7/1805 ,  Y10T29/49 ,  Y10T74/18888

    Abstract: Focus arrangements for laser radar and other applications provide compensation of orientation-dependent gravitational forces. A linear stage can be preloaded and provided with balanced linear encoders so that gravitational force induced pitch, yaw, and roll can be reduced, detected, or compensated. Alternatively, movable focus elements can be secured to actuator driven spring assemblies that are controlled to compensate orientation-dependent gravitational forces.

    Abstract translation: 激光雷达和其他应用的焦点安排提供了取向相关重力的补偿。 可以对线性平台进行预加载并提供平衡线性编码器，以便减少，检测或补偿重力引起的俯仰，偏航和滚动。 或者，可移动聚焦元件可以固定到被控制以补偿取向相关重力的致动器驱动的弹簧组件。

    LIGHT-BEAM SCANNING FOR LASER RADAR AND OTHER USES
    6.
    发明申请
    LIGHT-BEAM SCANNING FOR LASER RADAR AND OTHER USES 审中-公开
    用于激光雷达和其他用途的光束扫描

    公开(公告)号：US20130241762A1

    公开(公告)日：2013-09-19

    申请号：US13840686

    申请日：2013-03-15

    Applicant: NIKON CORPORATION

    Inventor： Daniel G. Smith ,  Alexander Cooper ,  Eric Peter Goodwin ,  Yuichi Takigawa ,  Alec Robertson

    IPC: G02B26/10 ,  G01S13/86 ,  G01B11/24 ,  G01C3/08

    CPC classification number: G02B26/10 ,  G01B11/24 ,  G01C3/08 ,  G01S7/4812 ,  G01S7/4817 ,  G01S13/865 ,  G01S17/42 ,  G02B5/122 ,  G02B26/103

    Abstract: A light beam is scanned, for use in laser radar and other uses, by an optical system of which an example includes a beam-shaping optical system that includes a first movable optical element and a second movable optical element. The first optical element forms and directs an optical beam along a nominal propagation axis from the beam-shaping optical system to a target, and the second optical element includes a respective actuator by which the second optical element is movable relative to the first optical element. A controller is coupled at least to the actuator of the second optical element and is configured to induce motion, by the actuator, of the second optical element to move the optical beam, as incident on the target, relative to the nominal propagation axis.

    Abstract translation: 通过光学系统扫描光束，用于激光雷达和其它用途，该系统的示例包括包括第一可移动光学元件和第二可移动光学元件的光束整形光学系统。 第一光学元件沿着标称传播轴从光束整形光学系统形成并引导光束到目标，并且第二光学元件包括相应致动器，第二光学元件可以通过该致动器相对于第一光学元件移动。 控制器至少耦合到第二光学元件的致动器，并且被配置为通过致动器引起第二光学元件的运动，以相对于标称传播轴线将入射到靶上的光束移动。

    SCAN MIRRORS FOR LASER RADAR
    9.
    发明申请
    SCAN MIRRORS FOR LASER RADAR 有权
    扫射镜用于激光雷达

    公开(公告)号：US20150355327A1

    公开(公告)日：2015-12-10

    申请号：US13840658

    申请日：2013-03-15

    Applicant: Nikon Corporation ,  Nikon Metrology NV

    Inventor： Eric Peter Goodwin ,  Daniel G. Smith ,  Alexander Cooper ,  Mina A. Rezk ,  Anthony R. Slotwinski ,  Thomas M. Hedges

    IPC: G01S17/10 ,  G01S7/481 ,  G02B26/10

    CPC classification number: G01S17/102 ,  G01S7/4812 ,  G01S7/4817 ,  G01S7/4818 ,  G01S7/4917 ,  G01S17/325 ,  G01S17/66 ,  G02B26/101 ,  G02B26/108

    Abstract: Laser radar systems include a pentaprism configured to scan a measurement beam with respect to a target surface. A focusing optical assembly includes a corner cube that is used to adjust measurement beam focus. Target distance is estimated based on heterodyne frequencies between a return beam and a local oscillator beam. The local oscillator beam is configured to propagate to and from the focusing optical assembly before mixing with the return beam. In some examples, heterodyne frequencies are calibrated with respect to target distance using a Fabry-Perot interferometer having mirrors fixed to a lithium aluminosilicate glass-ceramic tube.

    Abstract translation: 激光雷达系统包括配置成相对于目标表面扫描测量光束的五棱镜。 聚焦光学组件包括用于调节测量光束聚焦的角立方体。 基于返回波束和本地振荡器波束之间的外差频率来估计目标距离。 本地振荡器束配置成在与返回光束混合之前传播到聚焦光学组件和/或从聚焦光学组件传播。 在一些示例中，使用具有固定到铝硅酸锂玻璃 - 陶瓷管的镜子的法布里 - 珀罗干涉仪来校准相对于目标距离的外差频率。

    BEAM STEERING FOR LASER RADAR AND OTHER USES
    10.
    发明申请
    BEAM STEERING FOR LASER RADAR AND OTHER USES 审中-公开
    用于激光雷达和其他用途的光束转向

    公开(公告)号：US20130241761A1

    公开(公告)日：2013-09-19

    申请号：US13840093

    申请日：2013-03-15

    Applicant: NIKON CORPORATION

    Inventor： Alexander Cooper ,  Daniel G. Smith ,  W. Thomas Novak

    IPC: G02B26/10 ,  G06F17/50 ,  G01S13/86

    CPC classification number: G02B26/10 ,  G01S7/4812 ,  G01S7/4817 ,  G01S13/865 ,  G01S17/42 ,  G02B5/122 ,  G02B26/108 ,  G06F17/50

    Abstract: Optical systems suitable for use as or in laser radar systems and other uses include a beam-forming unit, a beam-scan unit, and a controller. The beam-forming unit includes a first optical element, and the beam-scan unit includes a second optical element. The first optical element is movable to shape and direct a substantially collimated optical beam along a nominal propagation axis to a target, and the second optical element includes at least one movable beam deflector that moves the optical beam in a scanning manner relative to the nominal propagation axis. The controller is coupled to the beam-forming unit and beam-scan unit, and is configured to induce movement of the first optical element required for shaping and directing the optical beam along the nominal propagation axis and to induce independent motion of the beam deflector of the second optical element as required to scan the optical beam relative to the nominal propagation axis. The beam deflector can be refractive or reflective.

    Abstract translation: 适用于或用于激光雷达系统和其他用途的光学系统包括波束形成单元，波束扫描单元和控制器。 波束形成单元包括第一光学元件，并且波束扫描单元包括第二光学元件。 第一光学元件可移动以使基本上准直的光束沿着标称传播轴线定向到目标，并且第二光学元件包括至少一个可移动光束偏转器，其以相对于标称传播的扫描方式移动光束 轴。 控制器耦合到波束形成单元和波束扫描单元，并且被配置为引起第一光学元件的移动，该第一光学元件成形并沿着标称传播轴线引导光束，并且引导光束偏转器的独立运动 所需的第二光学元件相对于标称传播轴扫描光束。 光束偏转器可以是折射或反射的。

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