公开(公告)号：US4970384A

公开(公告)日：1990-11-13

申请号：US391246

申请日：1989-08-09

申请人： Yoshiaki Kambe ,  Yoshihiko Okuda ,  Atsuyuki Hirono ,  Akira Nagaoka ,  Takayasu Ito

发明人： Yoshiaki Kambe ,  Yoshihiko Okuda ,  Atsuyuki Hirono ,  Akira Nagaoka ,  Takayasu Ito

IPC分类号： G01D5/34 ,  G01S7/481 ,  G01S17/46

CPC分类号： G01S7/4813 ,  G01D5/34 ,  G01S17/46

摘要： An optical sensor discriminating the presence of an object or detecting distance to an object which includes a light projecting element for projecting light to a detection area, a light receiving element for receiving light reflected from an object present in the detection area and an anamorphic light receiving lens for expanding a condensed light spot received on the light receiving element in a direction perpendicular to a direction of movement of the light spot on the light receiving element. The light receiving element outputs a detection signal which discriminates the presence of the object in the detection area. The light receiving element can be rectangular in shape and comprise two or more triangular shaped photodiodes which output detection signals that can be processed to determine a distance between the object and the light receiving element. A movable prism can also be provided to compensate for movement of the object other than towards or away from the light receiving element to avoid erroneous distance measurement which might otherwise occur.

公开(公告)号：US4876446A

公开(公告)日：1989-10-24

申请号：US150385

申请日：1988-01-29

申请人： Yoshiaki Kambe ,  Yoshihiko Okuda ,  Atsuyuki Hirono ,  Akira Nagaoka ,  Takayasu Ito

发明人： Yoshiaki Kambe ,  Yoshihiko Okuda ,  Atsuyuki Hirono ,  Akira Nagaoka ,  Takayasu Ito

IPC分类号： G01D5/34 ,  G01S7/481 ,  G01S17/46

CPC分类号： G01S7/4813 ,  G01D5/34 ,  G01S17/46

摘要： An optical sensor comprises a sensor circuit having parts which are optically interconnected with each other through an optical interconnection board interposed therebetween. The interconnection between the sensor circuit parts is thereby simplified remarkably, so that the mass-producibility of the sensor can be increased to lower its manufacturing costs.

摘要翻译： 光学传感器包括传感器电路，该传感器电路具有通过插入其间的光学互连板彼此光学互连的部件。 因此，传感器电路部分之间的互连显着地被简化，从而可以提高传感器的大规模生产性以降低其制造成本。

公开(公告)号：US4656462A

公开(公告)日：1987-04-07

申请号：US723060

申请日：1985-04-15

申请人： Tsunehiko Araki ,  Hiroshi Matsuda ,  Kazuhito Kayanoki ,  Akira Nagaoka

发明人： Tsunehiko Araki ,  Hiroshi Matsuda ,  Kazuhito Kayanoki ,  Akira Nagaoka

IPC分类号： G01S17/02 ,  G08B13/187 ,  G08B13/18

CPC分类号： G08B13/187 ,  G01S17/026

摘要： An object detecting apparatus has a plurality of light emitters which are sequentially actuated for projecting sequential light beams. A first structure is provided for receiving beams not reflected off any external body. A second structure is provided for receiving any part of the light beams reflected from an object in the area. A reference phase signal corresponding to the projected light beams is generated. A detection phase signal corresponding to the received reflected beam is also generated. The light emitters corresponding to the reflected light beams are continuously activated. The detection area is restricted by inhibition of output from an alarm phase difference discriminating circuit to a circuit when a difference between the reference and detection phases is not within a predetermined range. Consequently, the detection area can be restricted to a desired range, and the alarm circuit can be retained non-operative unless the object remains continuously in the area. This avoids any malfunction produced by any transitory object, while the actuation of the light projecting means in a very short time sequence accelerates the detecting operation with minimized power consumption.

摘要翻译： 物体检测装置具有顺序驱动的多个发光体，用于投射顺序光束。 提供第一结构用于接收不从任何外部主体反射的光束。 提供第二结构用于接收从该区域中的物体反射的任何部分光束。 产生对应于投影光束的参考相位信号。 也产生对应于所接收的反射光束的检测相位信号。 对应于反射光束的发光体被连续地激活。 当基准和检测相位之间的差不在预定范围内时，通过禁止从报警相位差识别电路向电路的输出来限制检测区域。 因此，检测区域可以被限制在期望的范围内，并且除非对象保持在该区域中，否则可以将报警电路保持不起作用。 这避免了任何短暂的物体产生的任何故障，而在非常短的时间序列中的光投射装置的致动以最小的功耗加速了检测操作。

公开(公告)号：US5138302A

公开(公告)日：1992-08-11

申请号：US578598

申请日：1990-09-07

申请人： Akira Nagaoka ,  Shigeki Shimomura ,  Masao Arakawa ,  Tomizo Terasawa ,  Hironori Kami ,  Masanobu Ogawa

发明人： Akira Nagaoka ,  Shigeki Shimomura ,  Masao Arakawa ,  Tomizo Terasawa ,  Hironori Kami ,  Masanobu Ogawa

IPC分类号： G08B17/107

CPC分类号： G08B17/107 ,  G08B17/113

摘要： A photoelectric smoke detector has a circuit substrate coupled to an optical-system base as disposed in a circuit accommodating zone defined within a detector housing by the base together with a smoke supervisory zone, a light projecting element and an integrated circuit incorporating therein a light receiving element and smoke detecting means are mounted to the circuit substrate, and the optical-system base holds therein a light receiving lens which is capable of condensing scattered light from smoke particles onto the light receiving element in the integrated circuit on the circuit substrate. Effective reduction in the number of constituent parts is thereby attained, to promote reduction in manufacturing costs, and to effectively realize dimensional minimization.

摘要翻译： 光电式烟雾探测器具有电路基板，该电路基板与光学系统基座连接，该光电系统基座设置在电路容纳区域内，该电路容纳区域由检测器壳体内的基座与烟雾监控区域，光投射元件和集成电路结合在一起， 元件和烟雾检测装置安装到电路基板上，并且光学系统基座保持有光接收透镜，该光接收透镜能够将来自烟粒子的散射光聚集到电路基板上的集成电路中的光接收元件上。 由此，能够有效地减少构成部件的数量，促进制造成本的降低，有效地实现尺寸最小化。