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1.发明授权Optical sensor for detecting distance to an object including anamorphic light receiving lens 失效用于检测到包括变形光接收透镜的物体的距离的光学传感器
公开(公告)号：US4970384A
公开(公告)日：1990-11-13
申请号：US391246
申请日：1989-08-09
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.
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2.发明授权Photoelectric switch with limit setting means to prevent disablement when the amplifier is saturated 失效具有限制设置的光电开关意味着当放大器饱和时防止禁用
公开(公告)号：US4633077A
公开(公告)日：1986-12-30
申请号：US582888
申请日：1984-02-23
申请人： Motoo Ikari , Yoshiaki Kanbe , Yoshihiko Okuda , Yuki Yorifuji , Hitoshi Miyashita , Haruhiko Momose
发明人： Motoo Ikari , Yoshiaki Kanbe , Yoshihiko Okuda , Yuki Yorifuji , Hitoshi Miyashita , Haruhiko Momose
CPC分类号： G01S17/48
摘要： There is provided a photoelectric switch in which a beam reflected by an object to be detected is received in a trigonometric manner so that any failure in the distance measurement of the object can be prevented with employment of ordinary amplification circuit for received-light signals without enlarging the figure of the dynamic range of the circuit. In the switch, a circuit for comparing the ratio of the received-light signals to a predetermined operational level includes means for setting the nearest limit point for a set range of a detecting area to be farther than an intersection of the projected light beam with a line connecting centers of light-receiving lens and received-light detecting element so that the detection of the object can be made even when the dynamic range of the amplification circuit is saturated, whereby the presence of the object in the detecting area can be always discriminated even upon the dynamic range saturation of the amplification circuit.
摘要翻译： 提供了一种光电开关，其中以三角方式接收被检测物体反射的光束，从而可以通过使用用于接收光信号的普通放大电路而不放大来防止物体的距离测量中的任何故障 电路的动态范围的数字。 在开关中，用于将接收光信号的比率与预定操作电平进行比较的电路包括用于将检测区域的设定范围的最近极限点设置为比投影光束与 光接收透镜和接收光检测元件的线连接中心，使得即使当放大电路的动态范围饱和时也可以进行对象的检测，由此可以总是区分检测区域中的对象的存在 即使在放大电路的动态范围饱和。
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公开(公告)号：US4396840A
公开(公告)日：1983-08-02
申请号：US192715
申请日：1980-10-01
申请人： Tsunehiko Araki , Yoshihiko Okuda , Takeshi Nakano
发明人： Tsunehiko Araki , Yoshihiko Okuda , Takeshi Nakano
IPC分类号： G08B17/11 , G08B17/113 , H01J47/02 , G01T1/18
CPC分类号： H01J47/02 , G08B17/11 , G08B17/113
摘要： An ionization type smoke sensing device includes a printed board. An inner electrode made of heat-resistant metal is attached to the printed board and a radioactive source is fixed to the inner electrode. An outer electrode in the form of a bottomed cylinder made of heat-resistant metal and adapted to cover the inner electrode extends through the printed board and is integrally joined to a protective lid member made of heat-resistant metal at the back of the printed board. Therefore, the outer electrode and the lid member cooperate with each other to define an ionization chamber. The outer electrode is formed with smoke inlet ports for introducing smoke into the ionization chamber. The electric circuit serves to give pulse signals of a relatively high voltage to the outer electrode and to detect the presence of smoke on the basis of the amount of a current flowing through the inner electrode.
摘要翻译： 电离型烟雾感测装置包括印刷电路板。 由耐热金属制成的内电极附着在印刷电路板上，放射源固定在内电极上。 由耐热金属制成并适用于覆盖内部电极的有底圆柱形的外部电极延伸穿过印刷电路板，并与印刷电路板背面的耐热金属制成的保护盖构件整体接合 。 因此，外电极和盖构件相互配合以形成电离室。 外部电极形成有用于将烟雾引入电离室的烟雾入口。 电路用于向外部电极提供相对较高电压的脉冲信号，并且基于流过内部电极的电流量来检测烟雾的存在。
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公开(公告)号：US4103997A
公开(公告)日：1978-08-01
申请号：US703201
申请日：1976-07-07
申请人： Tsunehiko Araki , Yoshihiko Okuda
发明人： Tsunehiko Araki , Yoshihiko Okuda
IPC分类号： G01N21/53 , G08B17/10 , G08B17/107 , G01N21/00 , G01N21/26
CPC分类号： G01N21/53 , G08B17/107 , G08B17/113
摘要： A light scattering type smoke detector effectively sensitive both to white and black smokes is provided. A wave length .lambda. of an incident light from a light source and a scattered light receiving angle .theta. defined by the direction of the incident light and the direction connecting between a smoke particle and a light receiving element are so determined as to satisfy .lambda. .ltoreq. 950 m.mu. when .theta. .ltoreq. 45.degree., .theta. .ltoreq. - 0.18 .lambda. + 216 when 45.degree. .ltoreq. 135.degree. and .theta. .ltoreq. 135.degree. when .lambda. .ltoreq. 450 m.mu..
摘要翻译： 提供了对白色和黑色烟雾敏感的光散射型烟雾探测器。 来自光源的入射光的波长λ和由入射光的方向和连接烟粒与光接收元件的方向限定的散射光接收角θ被确定为满足λ< 当λ=450μm时，当θ=45μm时θ=0.18λ+ 216°，当45°135°时θ= 135°，当λ=450μm时θ= 135°。
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公开(公告)号：US4876446A
公开(公告)日：1989-10-24
申请号：US150385
申请日：1988-01-29
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。
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公开(公告)号：US4023152A
公开(公告)日：1977-05-10
申请号：US572315
申请日：1975-04-28
CPC分类号： G08B17/11
摘要： A smoke sensing device of the type having a single ionization chamber wherein stability and reliability are increased by driving the ionization chamber from a square wave oscillator, and utilizing an A.C. amplifier responsive to the ionization current within the chamber. The A.C. amplifier serves to amplify the current through the ionization chamber and couple the amplified current to a rectifier and detector adapted to respond to decreases in current, such as caused by smoke particles within the ionization chamber, to activate an alarm device.
摘要翻译： 一种具有单个电离室的烟雾感测装置，其中通过从方波振荡器驱动电离室并且利用响应于室内的电离电流的交流放大器放大器来增加稳定性和可靠性。 交直流放大器用于放大通过电离室的电流，并将放大的电流耦合到整流器和检测器，该整流器和检测器适于响应电流降低，例如由电离室内的烟雾颗粒引起的，以激活报警器件。
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公开(公告)号：US3985453A
公开(公告)日：1976-10-12
申请号：US489881
申请日：1974-07-19
IPC分类号： G01N21/53 , G08B17/107 , G01N21/12
CPC分类号： G08B17/107 , G01N21/53 , G08B17/113
摘要： A light scattering type smoke detector minimized in size and protected from erroneous operation and from internal accumulation of water drops is provided. The optical comprises light emitting and receiving elements and light shielding means which are compactly mounted on a base plate at different heights so as normally to prevent light from the emitting element to reach the receiving element. A power source part for the light emitting element disposed at one side of the optical system and an amplifying part for the light receiving element disposed at the other side of the system are housed in an upper lid having drain means, and a lower lid having many small holes for smoke lead-in is attached to the upper lid.
摘要翻译： 提供了一种光散射式烟雾探测器，其尺寸最小化并防止错误操作和水滴的内部积聚。 该光学元件包括发光和接收元件和遮光装置，它们以不同的高度紧密地安装在基板上，以便正常地防止来自发光元件的光到达接收元件。 设置在光学系统的一侧的发光元件的电源部分和设置在系统的另一侧的用于光接收元件的放大部件容纳在具有排出装置的上盖中，并且具有许多 用于烟雾引入的小孔附接到上盖。
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