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公开(公告)号：EP0274889A2
公开(公告)日：1988-07-20
申请号：EP87311159.5
申请日：1987-12-17
CPC分类号： G08B29/183 , G08B13/19 , G08B13/2494 , Y10S250/01
摘要： An intruder sensor contains a microwave detector (14, 16, 18) and a passive infra-red detector (8, 10) in the same housing (2). A panel (4) in the housing defines a series of Fresnel lens segments (6) which define the zones for the infra-red sensitive element (8). The panel (4) also forms the radome for the microwave detector. In the twin horn microwave detector, the infra-red sensitive element (8) is mounted on a circuit board between the horns (14, 16).
摘要翻译： 入侵者传感器在同一壳体（2）中包含微波检测器（14,16,18）和被动红外探测器（8,10）。 壳体中的面板（4）限定了一系列菲涅尔透镜段（6），其限定红外线敏感元件（8）的区域。 面板（4）还形成微波检测器的天线罩。 在双喇叭微波检测器中，红外线敏感元件（8）安装在喇叭（14,16）之间的电路板上。
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公开(公告)号：EP0274889A3
公开(公告)日：1989-09-06
申请号：EP87311159.5
申请日：1987-12-17
CPC分类号： G08B29/183 , G08B13/19 , G08B13/2494 , Y10S250/01
摘要： An intruder sensor contains a microwave detector (14, 16, 18) and a passive infra-red detector (8, 10) in the same housing (2). A panel (4) in the housing defines a series of Fresnel lens segments (6) which define the zones for the infra-red sensitive element (8). The panel (4) also forms the radome for the microwave detector. In the twin horn microwave detector, the infra-red sensitive element (8) is mounted on a circuit board between the horns (14, 16).
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公开(公告)号：EP0274889B1
公开(公告)日：1993-03-24
申请号：EP87311159.5
申请日：1987-12-17
CPC分类号： G08B29/183 , G08B13/19 , G08B13/2494 , Y10S250/01
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