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    • 3. 发明授权
    • Optical object detection system incorporating fiber optic coupling
    • 包含光纤耦合的光学物体检测系统
    • US5291261A
    • 1994-03-01
    • US475543
    • 1990-02-06
    • Randy DahlSanjar Ghaem
    • Randy DahlSanjar Ghaem
    • G01S7/481G01S17/02G01S17/93G01C3/00B60Q1/00H01J40/14
    • G01S17/936G01S17/026G01S7/4818
    • A system (4) for use in an automobile (2) for the detection of objects comprising: a light source (6); a plurality of spaced transmitter ports (10, 12) for respectively transmitting light to a plurality of fields of illumination (18, 20); an optical fiber coupling the light source to the transmitter ports; a plurality of receiver ports (10, 12) embracing respectively a plurality of fields of reception (34, 36) each having an area of overlap (38, 40, 42, 44) with each of the plurality of fields of illumination so as to receive light transmitted from one of the transmitter ports and reflected by an object present in an area of overlap; a receiver (22) for receiving light and for producing a signal representative thereof; an optical fiber (24) coupling the receiver ports to the receiver; and processing means (52) for sequentially activating each of the transmitter ports with each of the receiver ports, and for processing the signal produced by the receiver in response to each activation to detect the presence of an object in each of the areas of overlap.
    • 一种用于汽车(2)中用于检测物体的系统(4),包括:光源(6); 多个间隔开的发射器端口(10,12),用于分别将光传输到多个照明场(18,20); 将光源耦合到发射器端口的光纤; 分别包含多个接收区域(34,36)的多个接收器端口(10,12),每个接收端口具有与多个照明场中的每一个具有重叠区域(38,40,42,44)的区域,以便 接收从发射机端口之一发射并由存在于重叠区域中的对象反射的光; 接收器(22),用于接收光并产生代表其的信号; 将接收器端口耦合到接收器的光纤(24); 以及处理装置(52),用于使用每个接收器端口顺序地激活每个发射机端口,并且响应于每个激活来处理由接收机产生的信号,以检测每个重叠区域中的对象的存在。