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    • 1. 发明授权
      US06621067B2 Polarization independent photodetector device and method of making same 失效
    • Polarization independent photodetector device and method of making same
    • 极化独立光电探测器及其制作方法
    • US06621067B2
    • 2003-09-16
    • US09796796
    • 2001-03-02
    • Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
    • Gang He , François Babin , Martin Tremblay , Marc Breton , Steeve Potvin , Gregory Walter Schinn
    • G02F101
    • H01L31/0203 , G02B6/4204 , G02B6/4292 , H01L31/02325
    • A photodetector device comprising a photosensitive detector (12; 96) and one or more interfaces (20′, 20″, 28, 98) between dissimilar media is configured so that a light beam (LB) for detection will pass through the interface(s) along a beam axis that is not normal to the interface(s). The deviation (&thgr;) from the normal will be such that polarization dependent transmission introduced at the interface(s) will compensate for inherent polarization dependency of the detector (12; 96). The deviation may be achieved by inclining the interface(s) relative to a predetermined direction along which the light beam will be incident. Where the photosensitive detector is in a housing (84) with a window (20) through which the light beam enters the housing, the housing can be tilted. In such as case, there are three interfaces, one (28; 98) at the surface of the detector (12; 96), and one at each surface (20′, 20″) of the window (20). Alternatively, the detector surface and/or the window could be tilted. Where a pigtail fiber (116) is permanently attached to the photodetector device to input the light beam through an interposed lens (106), the end of the pigtail fiber may be offset laterally from the lens optical axis (LOA) so that the beam axis deviates from the normal by such an angle that the resulting polarization dependent transmission (PDT) substantially corrects for polarization dependent response (PDR) of the photosensitive detector. An end facet of the pigtail fiber, the lens, and/or the window may be inclined so that they are not perpendicular to the propagation direction of the light beam so as to reduce interference and backreflection effects.
    • 包括光敏检测器（12; 96）和不同介质之间的一个或多个接口（20'，20“，28,98）的光检测器设备被配置为使得用于检测的光束（LB）将通过接口 s）沿着不垂直于接口的波束轴。 与正常的偏差（θ）将使得在界面处引入的偏振相关传输将补偿检测器（12; 96）的固有偏振依赖性。 可以通过使界面相对于光束入射的预定方向倾斜来实现偏差。 在光敏检测器位于具有窗口（20）的壳体（84）中，光束通过该窗口进入壳体，壳体可以倾斜。 在这种情况下，在检测器（12; 96）的表面处有三个界面，一个（28; 98），一个在窗口（20）的每个表面（20'，20“）处。 或者，检测器表面和/或窗口可以倾斜。 在猪尾纤维（116）永久地附接到光电检测器装置以通过中介透镜（106）输入光束的情况下，猪尾纤维的端部可以从透镜光轴（LOA）侧向偏移，使得光束轴线 偏离正常，使得所得到的偏振相关透射（PDT）基本上校正光敏检测器的偏振相关响应（PDR）。 引线纤维，透镜和/或窗口的端面可以倾斜，使得它们不垂直于光束的传播方向，以便减少干涉和背反射效应。
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Espacenet 法律信息 同族专利 专利引用
    • 7. 发明申请
      US20190258253A1 SYSTEMS AND METHODS FOR AUTONOMOUS VEHICLES 审中-公开
    • SYSTEMS AND METHODS FOR AUTONOMOUS VEHICLES
    • US20190258253A1
    • 2019-08-22
    • US16279778
    • 2019-02-19
    • Martin Tremblay
    • Martin Tremblay
    • G05D1/00 , G06K9/00 , G01C21/34 , B60W40/08 , G07C5/00
    • An autonomous vehicle configured to facilitate its use and/or enhance what it and/or occupants can do with it, such as, for example, by: autonomously acting based on events within the autonomous vehicle, including by autonomously rerouting itself, altering a cabin of the autonomous vehicle, notifying a third party external to the autonomous vehicle, stopping (e.g., parking) the autonomous vehicle, altering how the autonomous vehicle drives itself, and/or performing other actions based on what and/or how an occupant is doing, an emergency, or another event occurring in the cabin of the autonomous vehicle; autonomously acting based on interactions with (e.g., gestures of) humans (e.g., police officers, school-crossing guards, traffic guards at roadwork or other temporary traffic control sites, drivers of other vehicles, etc.) external to the autonomous vehicle; autonomously acting based on indicators placed at particular locations (e.g., drive-through establishments, potholes, parking spots, etc.); facilitating acts of occupants in the cabin of the autonomous vehicle, such as acts unrelated to and normally not done while driving, including, for example, sleeping, exercising, working, eating, cooking, and/or any other suitable act; and/or automatically personalizing the autonomous vehicle for an occupant (e.g., a configuration of the cabin, a self-driving mode, a destination and/or a route, etc.).
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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