Optical detector for measuring respective phases of multiple beams apparatus and method

    公开(公告)号:US09945731B1

    公开(公告)日:2018-04-17

    申请号:US14596825

    申请日:2015-01-14

    Abstract: A system includes a source of laser beams forming an array, a source of a reference laser beam, and an optical detector for measuring respective phase differences between the array laser beams and the reference laser beam. The system includes a mask, having apertures with a shape, size and position identical to a shape, size and position of the array laser beams, and positioned in the reference laser beam to form respective beams of the reference laser beam corresponding to the beams from the array laser beams. A phase modulator phase modulates respective beams of one of (a) the array laser beams and (b) the beams of the reference laser from the mask. A photodetector receives the respective array laser beams and the corresponding reference laser beams from the mask to generate a composite signal. Processing circuitry is responsive to the composite signal for generating respective signals representing the phase differences of the individual laser beams from the reference laser beam.

    Focusing luminescent and thermal radiation concentrators
    86.
    发明授权
    Focusing luminescent and thermal radiation concentrators 有权
    聚焦发光和热辐射聚光器

    公开(公告)号:US09461193B2

    公开(公告)日:2016-10-04

    申请号:US13470938

    申请日:2012-05-14

    Abstract: The present disclosure relates to focusing luminescent concentrators wherein directional emission, obtained by placing an absorber/emitter within a microcavity or photonic crystal, may be oriented by a macroscopic concentrator and focused to a point or line for 3D or 2D concentration, respectively. The focusing luminescent concentrators disclosed herein may provide high concentration ratios without the need for tracking, and may reduce re-absorption losses associated with conventional concentrators. The present disclosure further relates to photovoltaic cells and/or optical detector devices comprising a focusing luminescent concentrator. The devices and methods presently disclosed are also useful, for example, in solar, thermal and thermophotovolatic applications.

    Abstract translation: 本公开涉及聚焦发光聚光器,其中通过将吸收器/发射器放置在微腔或光子晶体内而获得的定向发射可以分别由宏观聚光器定向并聚焦到用于3D或2D浓度的点或线。 本文公开的聚焦发光集中器可以提供高浓度比,而不需要跟踪,并且可以减少与常规浓缩器相关联的再吸收损失。 本公开还涉及包括聚焦发光聚光器的光伏电池和/或光学检测器装置。 目前公开的装置和方法在例如太阳能,热能和热光照应用中也是有用的。

    Endoscope
    87.
    发明授权
    Endoscope 有权
    内窥镜

    公开(公告)号:US09182586B2

    公开(公告)日:2015-11-10

    申请号:US14313300

    申请日:2014-06-24

    Inventor: Kazuki Honda

    Abstract: An endoscope includes: a first objective lens that causes an image of a first object to be observed to be formed; a second objective lens that causes an image of a second object to be observed to be formed; a light guide that guides illuminating light from a light source to an insertion portion; a light distribution member that distributes light from the light guide between a first observation direction and a second observation direction; a light amount varying portion for changing light amount proportions with respect to light emitted in the first observation direction and light emitted in the second observation direction; a distance detection portion that measures a second distance between the second objective lens and an object to be observed in the second observation direction; and a control portion that controls the light amount varying portion based on a second distance signal.

    Abstract translation: 内窥镜包括:第一物镜,其形成要观察的第一物体的图像; 导致形成第二物体的图像的第二物镜; 将来自光源的光照射到插入部的导光体; 配光部件,其在第一观察方向和第二观察方向之间分配来自所述导光体的光; 用于改变相对于在第一观察方向发射的光的光量比例的光量变化部分和在第二观察方向发射的光; 距离检测部,其在所述第二观察方向上测量所述第二物镜与待观察物体之间的第二距离; 以及控制部分,其基于第二距离信号控制光量变化部分。

    PORTABLE DEVICE FOR ANALYSING A PLURALITY OF WIDELY SPACED LASER BEAMS
    89.
    发明申请
    PORTABLE DEVICE FOR ANALYSING A PLURALITY OF WIDELY SPACED LASER BEAMS 审中-公开
    便携式设备,用于分析大量的宽空间激光器

    公开(公告)号:US20150042982A1

    公开(公告)日:2015-02-12

    申请号:US14385476

    申请日:2012-03-16

    Abstract: A system and method for performing field measurement and testing of a plurality of widely spaced laser beams used in visual warning technology (VWT). VWT uses a combination of widely spaced laser beams, to warn civilians from approaching too close to military security areas. The widely spaced laser beams are displaced using rhomboidal prisms. Each rhomboidal prism receives a corresponding laser beam and displaces it toward a collecting lens. The lens focuses the displaced beams received thereon onto an imaging sensor for testing. Beam shutters may be used for selectively blocking one or more beams in order to test the beams separately and in different combinations.

    Abstract translation: 用于在视觉警告技术(VWT)中使用的多个宽间距激光束进行现场测量和测试的系统和方法。 VWT使用广泛距离的激光束的组合,以警告平民接近与军事安全区域的距离。 宽间距的激光束使用菱形棱镜移位。 每个菱形棱镜接收相应的激光束并将其移向收集透镜。 透镜将其上接收的移动光束聚焦到成像传感器上进行测试。 光束百叶窗可以用于选择性地阻挡一个或多个光束,以分别和以不同的组合测试光束。

    Photodetector Array On Curved Substrate
    90.
    发明申请
    Photodetector Array On Curved Substrate 有权
    光刻基板上的光电检测器阵列

    公开(公告)号:US20150034809A1

    公开(公告)日:2015-02-05

    申请号:US14265583

    申请日:2014-04-30

    Applicant: Google Inc.

    CPC classification number: G01S17/02 G01J1/0411 G01J1/0448 G01J1/4228

    Abstract: In some applications, it may be desirable to position multiple photodetectors at precise locations on a curved focal surface defined by an optical system. To achieve this positioning, the photodetectors may be mounted at desired locations on a flexible substrate that is in a flat configuration. The flexible substrate with mounted photodetectors can then be shaped to substantially conform to the shape of the curved focal surface. This shaping can be accomplished by clamping the flexible substrate between at least two clamping pieces. The curved flexible substrate clamped between the at least two clamping pieces can be positioned relative to the optical system such that the photodetectors are positioned at desired three-dimensional locations on the curved focal surface.

    Abstract translation: 在一些应用中,可能需要将多个光电检测器放置在由光学系统限定的弯曲焦点表面上的精确位置处。 为了实现这种定位,光电检测器可以安装在处于平坦配置的柔性基板上的期望位置处。 具有安装的光电检测器的柔性基板然后可以被成形为基本上符合弯曲焦面的形状。 这种成形可以通过将柔性基板夹在至少两个夹紧件之间来实现。 夹紧在至少两个夹持件之间的弯曲柔性基板可以相对于光学系统定位,使得光电检测器被定位在弯曲焦面上的期望的三维位置处。

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