Light redirection in optical navigation
    14.
    发明授权
    Light redirection in optical navigation 有权
    光导向光重定向

    公开(公告)号:US08859971B2

    公开(公告)日:2014-10-14

    申请号:US13273693

    申请日:2011-10-14

    Abstract: An optical navigation device, such as an optical navigation joystick or mouse, includes an internal redirector which may be separate or formed from material of a touch surface of the optical device. The redirector is disposed at an angle with respect to a plane of the touch surface, operative to reflect light which would otherwise strike the touch surface at a low angle and be internally reflected. The light may be reflected in a direction away from a light sensor of the device, reducing sensed internally reflected light, or may be reflected into the touch surface at a higher angle, potentially increasing a quantity of good signal. The redirector may also include portions which block light directly emitted from a light emitter, or reflected off other surfaces of the navigation device.

    Abstract translation: 诸如光学导航操纵杆或鼠标的光学导航装置包括可以与光学装置的触摸表面的材料分离或形成的内部重定向器。 重定向器相对于触摸表面的平面以一定角度设置,可操作以反射否则会以低角度触发触摸表面并在内部反射的光。 光可以在远离设备的光传感器的方向上反射,减少感测的内部反射光,或者可以以更高的角度反射到触摸表面中,潜在地增加良好信号的量。 重定向器还可以包括阻挡从光发射器直接发射的光或者从导航装置的其它表面反射的部分。

    Retroreflector-based system and method for detecting intrusion into a restricted area
    16.
    发明申请
    Retroreflector-based system and method for detecting intrusion into a restricted area 审中-公开
    用于检测入侵入限制区域的基于反射器的系统和方法

    公开(公告)号:US20080074652A1

    公开(公告)日:2008-03-27

    申请号:US11521750

    申请日:2006-09-15

    CPC classification number: G01C21/02 G01J1/06 G01J2001/061 G01V8/22 G08B13/184

    Abstract: Embodiments of the present invention include a system for detecting entry of an object from a first area into a second area. The system includes a light source for generating a light beam, the light beam defining a boundary between the first area and the second area. The system further includes a retroreflector positioned across from the light source, the retroreflector for reflecting the light beam back towards the light source and a photodetector positioned adjacent to the light source, the photodetector for detecting the reflected light beam wherein the photodetector generates a signal in response to detecting an interruption in the light beam signaling entry of an object from the first area to the second area.

    Abstract translation: 本发明的实施例包括用于检测物体从第一区域进入第二区域的系统。 该系统包括用于产生光束的光源,光束限定第一区域和第二区域之间的边界。 该系统还包括位于光源两端的后向反射器,用于将光束反射回光源的后向反射器和邻近光源定位的光电检测器,用于检测反射光束的光电检测器,其中光电检测器产生信号 响应于检测对象从第一区域到第二区域的光束信令输入中的中断。

    Systems and Methods of Tracking Rotor Blades
    19.
    发明申请
    Systems and Methods of Tracking Rotor Blades 审中-公开
    跟踪转子叶片的系统和方法

    公开(公告)号:US20140064966A1

    公开(公告)日:2014-03-06

    申请号:US13590326

    申请日:2012-08-21

    Abstract: A blade tracking system including a detector having one or more sensors to detect radiation from at least one field of view of the detector, the one or more sensors generating signals based on changes in incident radiation to the one or more sensors as a rotor blade passes the field of view, and a processor to determine a pass time for the rotor blade to pass through the at least one field of view based on the generated signals.

    Abstract translation: 一种刀片跟踪系统,包括具有一个或多个传感器的检测器,用于检测来自检测器的至少一个视野的辐射,所述一个或多个传感器基于当转子叶片通过时对所述一个或多个传感器的入射辐射的变化产生信号 视场,以及处理器,用于基于所生成的信号来确定转子叶片通过至少一个视场的通过时间。

    Light directionality sensor
    20.
    发明授权
    Light directionality sensor 有权
    光方向传感器

    公开(公告)号:US08462325B2

    公开(公告)日:2013-06-11

    申请号:US13122971

    申请日:2009-10-06

    Abstract: The present invention relates to light sensors for measuring light characteristics. In particular, the present invention relates to a light directionality sensor that is capable of measuring light characteristics such as the light direction, light collimation, and light distribution. According to a first aspect of the present invention there is provided a light directionality sensor comprising a photo-sensor (2), comprising a plurality of photo-sensitive elements (3), and a plurality of light-absorbing light selecting structures (1) arranged on the photo-sensor so as to form an array of light-absorbing light selecting structures. In the array of light-absorbing light selecting structures, a succession of at least some of the light-absorbing light selecting structures has varying structural characteristics. The varying structural characteristics is achieved by each individual structure of the succession being formed such that it allows light within a different angle interval with respect to the array to be sensed. Further, according to a second aspect of the invention, there is provided a method for forming a light sensor according to the first aspect of the present invention.

    Abstract translation: 本发明涉及用于测量光特性的光传感器。 特别地,本发明涉及能够测量诸如光方向,光准直和光分布等光特性的光方向性传感器。 根据本发明的第一方面,提供了一种光方向性传感器,其包括光传感器(2),其包括多个光敏元件(3)和多个光吸收光选择结构(1) 布置在光传感器上以形成吸光选择结构的阵列。 在光吸收光选择结构的阵列中,至少一些光吸收光选择结构的一系列具有不同的结构特征。 变化的结构特征通过形成的连续的每个单独结构来实现,使得其允许相对于阵列的不同角度间隔内的光被感测。 此外,根据本发明的第二方面,提供了根据本发明的第一方面的用于形成光传感器的方法。

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