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公开(公告)号:US4882491A
公开(公告)日:1989-11-21
申请号:US263622
申请日:1988-10-27
申请人: Yukitoshi Tamura , Keiji Takamatsu
发明人: Yukitoshi Tamura , Keiji Takamatsu
IPC分类号: G01V8/12 , G01J1/02 , G01J5/34 , G08B13/19 , G08B13/191
CPC分类号: G01J5/34 , G08B13/19 , Y10S250/01
摘要: The infrared detector comprises two light receiving elements connected in series in such directions as to oppose the orientations of polarization thereof to each other, a compensating element connected to the connection point between the two light receiving elements in such a direction as to oppose the orientation thereof to those of the two light receiving elements, and has sensitivities to outputs produced by vibration and temperature variation substantially equivalent to the sums of the sensitivities of the two light receiving elements to outputs produced by vibration and temperature variation, and two FETs having gates connected to the two light receiving elements respectively and to the compensating elements through resistors or diodes, these component members being accommodated in a cylindrical case shielding these members optically and electromagnetically. Arranged on the cylindrical case are two windows for allowing light to be incident on the two light receiving elements and a light interrupting wall for preventing light emitted from a single object from being incident simultaneously on the two light receiving elements.
摘要翻译: 该红外线检测器包括两个光接收元件,其串联连接在与其彼此偏振的取向相对的方向上;补偿元件,连接到两个光接收元件之间的连接点,以与其取向相反的方向 并且对由两个光接收元件的灵敏度与振动和温度变化产生的输出的和之和的振动和温度变化产生的输出的灵敏度,以及两个具有栅极连接的栅极的FET 两个光接收元件分别通过电阻器或二极管耦合到补偿元件,这些部件被容纳在圆柱形壳体中,以光学和电磁屏蔽这些部件。 在圆柱形壳体上布置有两个窗口,用于允许光入射在两个光接收元件上,以及遮光壁,用于防止单个物体发出的光同时入射到两个光接收元件上。
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公开(公告)号:US5391611A
公开(公告)日:1995-02-21
申请号:US140065
申请日:1993-11-04
IPC分类号: C08K5/02 , C08K5/00 , C08K5/49 , C08K9/00 , C08K9/04 , C08K9/06 , C08L7/00 , C08L25/00 , C08L25/06 , C08L53/00 , C08L53/02 , C08L55/00 , C08L55/02 , C08L71/00 , C08L71/12 , C08L25/04 , C08L25/10
摘要: There is disclosed a styrenic resin composition comprising (A) a styrenic polymer having high degree of syndiotactic configuration and (B) a rubbery polymer having a product of weight-average molecular weight and styrenic monomer unit content being at least 30,000.The above composition is excellent in release properties, impact resistance, heat resistance, mechanical strength and flame retardancy.
摘要翻译: PCT No.PCT / JP93 / 00268 Sec。 371日期:1993年11月4日 102(e)日期1993年11月4日PCT 1993年3月3日PCT公布。 公开号WO93 / 18087 日本公报1993年9月16日。公开了一种苯乙烯树脂组合物,其包含(A)具有高间隔构型的苯乙烯类聚合物和(B)具有重均分子量和苯乙烯单体单元含量的产物的橡胶状聚合物 至少30,000。 上述组合物的剥离性,耐冲击性,耐热性,机械强度和阻燃性优异。
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公开(公告)号:US4825079A
公开(公告)日:1989-04-25
申请号:US55122
申请日:1987-05-28
申请人: Keiji Takamatsu , Hideki Takahashi
发明人: Keiji Takamatsu , Hideki Takahashi
CPC分类号: G01J5/34
摘要: A pyroelectric infrared detector for use in, for example, an intrusion alarming system has a pyroelectric element, a FET for picking up the output of the pyroelectric element, a capacitor connected in parallel to the pyroelectric element, and other circuit parts. These constituent parts are integrally packed in a package.
摘要翻译: 用于例如入侵报警系统的热电红外检测器具有热电元件,用于拾取热电元件的输出的FET,与热电元件并联连接的电容器和其它电路部件。 这些构成部件整体地包装在包装中。
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