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    METHOD AND APPARATUS FOR GENERATING AN INFRARED ILLUMINATION BEAM WITH A VARIABLE ILLUMINATION PATTERN
    2.
    发明公开
    METHOD AND APPARATUS FOR GENERATING AN INFRARED ILLUMINATION BEAM WITH A VARIABLE ILLUMINATION PATTERN 有权
    方法和设备，用于生成红外光束与所变光图案

    公开(公告)号：EP2841989A1

    公开(公告)日：2015-03-04

    申请号：EP13871445.6

    申请日：2013-01-28

    申请人： Avigilon Corporation

    发明人： JANSSEN, Colin ,  SUN, Guoqian ,  AFROOZE, Sina ,  CELLER, Piotr ,  NEUFELD, Michael ,  HALE, Jeremy ,  RAMSAY, Frederick

    IPC分类号： G03B15/02 ,  G08B13/181

    CPC分类号： H05B37/02 ,  G01J5/10 ,  G06K9/00771 ,  H04N5/141 ,  H04N5/2256 ,  H04N5/23296 ,  H04N5/2354 ,  H04N5/33 ,  H05B33/0842 ,  H05B37/0227

    摘要： A method for generating an infrared (IR) beam for illuminating a scene to be imaged comprises providing at least two IR emitters, including a first IR emitter operable to emit a wide beam component of the IR beam, and a second IR emitter operable to emit a narrow beam component of the IR beam, wherein the wide beam component has a linear profile that has a lower standard deviation than a linear profile of the narrow beam component. The method also comprises selecting a desired linear profile for the IR beam, and selecting a power ratio of power directed to the first IR emitter and power directed to the second IR emitter that produces the IR beam with the desired linear profile when the narrow beam component and wide beam component are combined; and directing power to the first and second IR emitters at the selected power ratio to generate the wide and narrow beam components, and combining the generated wide and narrow beam components to produce the IR beam.

    摘要翻译： 一种用于在红外（IR）光束产生用于照亮待成像包括提供至少两个IR发射器，其包括第一红外发射器可操作用于发射红外光束的宽光束分量和第二红外发射器，其可操作以发射场景方法 红外光束的窄光束分量，worin宽光束分量具有线性轮廓确实具有较低的标准偏差比窄光束分量的线性轮廓。 因此，该方法包括选择用于IR光束一个期望的线性轮廓，以及选择导向第一IR发射器和功率引导至第二红外发射器的功率的功率比确实可生产红外光束与期望的线性轮廓在窄光束分量 和宽光束分量被结合; 并且在所选择的功率比引导电力到第一和第二IR发射器以产生宽和窄光束分量，并且组合所生成的宽的和窄光束分量以产生IR束。