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    • 2. 发明申请
    • APPARATUS FOR MEASURING DISTANCE
    • 测量距离的装置
    • WO1993021497A1
    • 1993-10-28
    • PCT/JP1993000462
    • 1993-04-12
    • OMRON CORPORATIONMORISHITA, KojiHIRAO, IichiHORII, TakayoshiINOUE, Yuichi
    • OMRON CORPORATION
    • G01C03/06
    • G01C3/08G01S17/46
    • In an apparatus for measuring a distance by triangulation, according to the light-reception signal outputted from a position sensing device (PSD) (5), a computing circuit (11) generates a light quantity signal (A) representing an incident light quantity and a signal (B) representing the distance to an objective body. According to the light quantity signal (A), a circuit (13) for determining the light quantity generates signals (A1, A2) representing that the light quantity is an appropriate light quantity, an insufficient light quantity or an excessive light quantity. According to the distance signal (B), a circuit (14) for determining the distance generates signals (B1, B2, B3, B4) representing that the distance is in a measurement central region, a short-distance measurable region, a long-distance measurable region, a short-distance unmeasurable region, or a long-distance unmeasurable region. These signals (A1, A2, B1-B4) are given to a decoder and driver (15), and LEDs (7, 17, 8, 18) are driven. Thereby, displayed are the respective operational states of an appropriate light quantity in the central measuring region, an appropriate light quantity in the short distance or long-distance measurable region, an appropriate light quantity in the short-distance or long-distance unmeasurable region, and an abnormal light quantity.
    • 在通过三角测量测量距离的装置中,根据从位置检测装置(PSD)(5)输出的光接收信号,计算电路(11)产生表示入射光量的光量信号(A) 表示到物体的距离的信号(B)。 根据光量信号(A),用于确定光量的电路(13)产生表示光量是适当光量,光量不足或过量光量的信号(A1,A2)。 根据距离信号(B),用于确定距离的电路(14)产生表示距离在测量中心区域中的信号(B1,B2,B3,B4),短距离可测量区域, 距离可测量区域,短距离不可测量区域或远距离不可测量区域。 这些信号(A1,A2,B1-B4)被提供给解码器和驱动器(15),并且驱动LED(7,17,8,18)。 由此,显示中心测量区域中的适当光量,短距离或长距离可测量区域中的适当光量,短距离或长距离不可测量区域中的适当光量的各自的操作状态, 和异常光量。