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21. 发明授权

US4564756A Proximity sensor with a light-emitting diode which simultaneously emits and detects light 失效
标题翻译：具有同时发射和检测光的发光二极管的接近传感器
公开(公告)号：US4564756A
公开(公告)日：1986-01-14
申请号：US568667
申请日：1984-01-06
申请人： Mark Johnson
发明人： Mark Johnson
IPC分类号： G01S17/02 , G01B11/00 , G01V8/12 , H03K17/78 , H03K17/94 , H03K17/968 , G01D5/34
CPC分类号： H03K17/941 , H03K17/968
摘要： An optical proximity detector of very small size and high resolution is provided by using a light emitting diode (LED) to illuminate a small detection region adjacent to the LED and by using the same LED simultaneously to sense light reflected from an object which enters the detection region. A circuit is provided which continuously forward biases a light emitting diode at a substantially constant bias current, thereby continuously illuminating a small region adjacent to the diode. When an object enters the illuminated region and reflects light back to the LED, it has been found that the impedance of the LED changes by a small amount. This small change in LED impedance and consequently the presence of a light reflecting object in the illuminated region is sensed by the circuit.
摘要翻译：通过使用发光二极管（LED）来照亮与LED相邻的小的检测区域并且同时使用相同的LED来感测从进入检测的物体反射的光来提供非常小的尺寸和高分辨率的光学接近检测器地区。提供一种电路，其以基本恒定的偏置电流连续向前偏置发光二极管，从而连续照射与二极管相邻的小区域。当物体进入照明区域并将光反射回LED时，已经发现LED的阻抗变化很小。该电路感测到LED阻抗的轻微变化，并因此在照明区域中存在光反射物体。

22. 发明授权

US4560238A Light transmission control apparatus 失效
标题翻译：光传输控制装置
公开(公告)号：US4560238A
公开(公告)日：1985-12-24
申请号：US452978
申请日：1982-12-27
申请人： Kei Mori
发明人： Kei Mori
IPC分类号： F21V8/00 , F21V9/40 , G02B6/26 , G02B26/02 , H03K17/968
CPC分类号： G02B6/264 , F21V9/10 , G02B26/02 , G02B6/0005
摘要： An apparatus for controlling the amount of converged light having a high energy density which is transmitted through a predetermined optical path. The apparatus or light switch is disposed in the vicinity of the optical path and operable either in a stepwise manner or in a stepless manner as desired. A flat plate made of isotropic graphite serves as a light interceptor and is driven by an operation member into and out of the optical path within a plane which is perpendicular to the optical path. The plate does not reflect the light or become heated by the light due to provision of heat radiator means.
摘要翻译：一种用于控制通过预定光路传输的具有高能量密度的会聚光量的装置。设备或光开关设置在光路附近，可以按步进的方式或根据需要以无级方式操作。由各向同性石墨制成的平板用作光拦截器，并且在垂直于光路的平面内由操作构件进入和离开光路。由于提供散热器装置，该板不反射光线或被光线加热。

23. 发明授权

US4415231A Radiation shutter, especially for a laser 失效
标题翻译：辐射快门，特别适用于激光
公开(公告)号：US4415231A
公开(公告)日：1983-11-15
申请号：US293658
申请日：1981-08-17
申请人： Friedrich Kaczensky , Walter Kroy , Gunter Reithmeier
发明人： Friedrich Kaczensky , Walter Kroy , Gunter Reithmeier
IPC分类号： G02B26/02 , G02B7/00 , G21K1/04 , H01S3/106 , H03K17/968 , G05D25/02
CPC分类号： G02B26/023 , G21K1/04 , H01S3/106 , G02B7/006
摘要： The radiation emitted by a radiation source, such as a laser, is substantially prevented from exiting from the radiation source by a shutter in the radiation path. To make the shutter substantially fail-safe, two filter and/or diaphragm systems are switchable into the radiation path in series fashion in that one system is located behind the other system as viewed in the radiation direction. Sensors sense the effective or ineffective position of the respective system. Each system has an actuator for bringing the respective radiation stopping system into or out of the radiation stopping position in response to a control signal provided by the sensor of the respective other system.
摘要翻译：基本上防止由辐射源（例如激光器）发射的辐射通过辐射路径中的快门从辐射源射出。为了使快门基本上是故障安全的，两个过滤器和/或隔膜系统可以以串联方式切换到辐射路径中，因为一个系统位于另一个系统的后面，在辐射方向上看。传感器感测各个系统的有效或无效的位置。每个系统具有致动器，用于响应于由相应的其他系统的传感器提供的控制信号，使相应的辐射停止系统进入或离开辐射停止位置。

24. 发明授权

US4271354A Manual belt electro-optical control 失效
标题翻译：手动皮带电光控制
公开(公告)号：US4271354A
公开(公告)日：1981-06-02
申请号：US65349
申请日：1979-08-09
申请人： Richard H. Shellenberger
发明人： Richard H. Shellenberger
IPC分类号： G01D5/34 , H03K17/968 , G02F1/01 , H01J40/14
CPC分类号： H03K17/968 , G01D5/34 , G01D5/345
摘要： An electro-optical control comprising a housing, a source of light, a photocell, and an endless belt having a substantially planar run manually movable with a finger. The belt has portions of differing light penetrability. Members on the housing guide the belt in an endless path when the one run of the belt is manually moved. The photocell and the light source are positioned interior of and exterior of the belt. Thus, when the belt is moved, the amount of light from the light source which strikes the photocell is varied, controlling the photocell. The control can include a stop member secured to the belt, engageable with the housing to limit the movement of the belt. In an alternative embodiment, the control includes a light source, a pair of photocells positioned substantially side by side and first and second disc-shaped polarizing filters positioned between the light source and the photocells. One filter is manually rotatable. One filter is also divided into two substantially semicircular filter portions whose directions of polarization are perpendicular to each other so that as the rotatable filter is rotated, the amount of light from the source striking one of the photocells is increased and the amount of light striking the other of the photocells is simultaneously decreased. The rotatable filter is controlled through an endless belt. An endless belt can also control for example a linear motion variable resistor or other devices.
摘要翻译：一种电光控制器，包括壳体，光源，光电管和环形带，其具有手指可手动移动的基本上平面的行程。皮带具有不同透光性的部分。当皮带的一个行程被手动移动时，外壳上的构件将带子引导到环形路径中。光电管和光源位于带的内部和外部。因此，当皮带移动时，来自光电池的光源的光量变化，控制光电管。控制器可以包括固定到皮带上的止动件，可与外壳接合以限制皮带的移动。在替代实施例中，控制器包括光源，基本上并排放置的一对光电池，以及位于光源和光电池之间的第一和第二盘状偏振滤光器。一个过滤器可手动旋转。一个滤光器也被分成两个基本上半圆形的滤光器部分，它们的偏振方向彼此垂直，使得随着可旋转滤光片的旋转，来自一个光电池的光源的光量增加，其他光电池同时减少。可旋转过滤器通过环形带控制。环形皮带还可以控制例如线性运动可变电阻器或其他装置。

25. 发明授权

US4153872A Crest firing means 失效
标题翻译：嵴射击手段
公开(公告)号：US4153872A
公开(公告)日：1979-05-08
申请号：US807010
申请日：1977-06-16
申请人： Daniel I. Pomerantz
发明人： Daniel I. Pomerantz
IPC分类号： G05F1/10 , H03K17/725 , H03K17/968 , H05B6/66 , G05F3/04
CPC分类号： H03K17/968 , H03K17/725 , H05B6/68 , Y10S323/908
摘要： Power is applied to an AC load at the crest of a voltage waveform by employing a light emitting diode. The crest firing circuit further includes a detector responsive to the diode's light emitting properties which fires a semiconductor switching device thereby activating the AC load.
摘要翻译：通过采用发光二极管对电压波形峰值处的AC负载施加功率。峰值点火电路还包括响应于二极管的发光特性的检测器，其触发半导体开关器件，从而激活AC负载。

26. 发明授权

US3989943A Angularly adjustable optical switch assembly 失效
标题翻译：角度可调的光开关组件
公开(公告)号：US3989943A
公开(公告)日：1976-11-02
申请号：US592982
申请日：1975-07-03
申请人： John E. Campbell , Douglas A. Harley , Herbert S. Lee , John E. Juhasz
发明人： John E. Campbell , Douglas A. Harley , Herbert S. Lee , John E. Juhasz
IPC分类号： H03K17/968 , G01D5/34
CPC分类号： H03K17/968
摘要： A selectively aligned optical switching device including two adjacent translucent discs having mask segments formed on the surfaces thereof, with the first disc including a sleeve extending from the central opening thereof which is received within the central opening of the second disc. A clamping nut threadably engages the sleeve to selectively align the masking segments of the discs relative to each other. This combination of discs is clamped in concentric alignment against a timing hub which in turn is indexed by a pin relative to a rotary shaft. The mask section of the discs is then received in an optical coupling device which provides operating signals in selected coordination with the rotation of the shaft.
摘要翻译：一种选择性对准的光学开关装置，包括两个相邻的透光盘，其具有形成在其表面上的掩模段，第一盘包括从其中心开口延伸的套筒，该套筒容纳在第二盘的中心开口内。夹紧螺母可与套筒螺纹连接，以便相对于彼此选择性地对准盘的掩蔽段。盘的这种组合被夹紧在相对于定时毂的同心对准中，该定时毂又相对于旋转轴由销引导。然后，光盘的掩模部分被接收在光耦合装置中，其提供与轴的旋转选择协调的操作信号。

27. 发明授权

US3800204A Contactless selector switch 失效
标题翻译：无连接选择开关
公开(公告)号：US3800204A
公开(公告)日：1974-03-26
申请号：US34218273
申请日：1973-03-16
申请人： LEDEX INC
发明人： KENNEY P
IPC分类号： H03K17/968 , H02P11/00
CPC分类号： H03K17/968
摘要： A contactless switch mechanism for successively energizing individual load devices selected from a plurality of load devices comprises confronting printed circuit boards, each making contact along one margin with a supporting chassis assembly which houses, or may have terminals for connection to, a source of operating power and which houses or may have terminal connections to the plurality of load devices. A first printed circuit board supports a plurality of continuously operating light-emitting devices, one light-emitting device for each load device, the light-emitting devices positioned in a predetermined array and each mounted to direct light toward the second printed circuit board. The second printed circuit board supports a plurality of light detector devices, one associated with each light-emitting device, and each responsive to light received from its associated light-emitting device. Each light detector is coupled to a solid state driver circuit responsive to the associated light detector to energize a load device coupled thereto. Each of the plurality of lightemitters is thus capable of causing energization of an associated load device without a mechanical movement such as normally required for the closure of switch contact. Interposed between the confronting printed circuit boards is a light shield having a single aperture. Selection of individual loads to be energized from amongst the plural loads available for energization is accomplished by means of a stepping motor operated to advance the light shield along a predetermined course and through plural positions along said course, each of said plural positions aligning said aperture. With a single one of said light emitters so as to allow energization of a single load device.
摘要翻译：用于对从多个负载装置中选择的各个负载装置连续通电的非接触式开关机构包括：面对印刷电路板，每个印刷电路板沿着一个边缘与支撑底盘组件接触，所述支撑底盘组件容纳或可具有用于连接到操作电源的端子并且其容纳或可以具有到多个负载装置的终端连接。第一印刷电路板支撑多个连续工作的发光装置，每个负载装置的一个发光装置，定位在预定阵列中的发光装置，并且每个发光装置安装成将光引向第二印刷电路板。第二印刷电路板支撑多个光检测器装置，一个与每个发光装置相关联的光检测器装置，并且每个检测器装置响应于从其相关联的发光装置接收的光。每个光检测器响应于相关联的光检测器耦合到固态驱动器电路，以激励与其耦合的负载装置。因此，多个发光体中的每一个因此能够引起关联的负载装置的通电，而不需要机械运动，例如关闭开关触点通常所需的机械运动。在相对的印刷电路板之间插入具有单个孔的遮光罩。从可用于通电的多个载荷中选择要被激励的各个载荷通过一个步进马达来实现，所述步进马达被操作以沿着预定的路线推进所述遮光罩，并且沿所述航向穿过多个位置，所述多个位置中的每一个对准所述孔。使用单个所述发光体，以便允许单个负载装置通电。

28. 发明授权

US3676685A Light-responsive switching circuit 失效
标题翻译：光响应开关电路
公开(公告)号：US3676685A
公开(公告)日：1972-07-11
申请号：US3676685D
申请日：1970-05-04
申请人： XERCON INC
发明人： MYER CLIFFORD E
IPC分类号： H03K17/968 , H01J39/12
CPC分类号： H03K17/968 , Y10S323/902 , Y10T307/773
摘要： A modularized light-responsive switching circuit capable of use in relatively high power applications. The circuit includes a Triac connected as a switching element in series with a power source and a load. The gate electrode of the Triac is connected to a light-responsive gating circuit including a capacitor and at least one light-responsive resistor switchable between two resistance levels. The capacitor is charged when the lightresponsive resistor assumes one resistance level and is discharged into the gate of the Triac when the light-dependent resistor assumes the other resistance level. The components of the switching circuit are encapsulated in a cylindrical module having a screen therein, through which the active surface of the light-responsive resistor can receive light, and having a pair of terminals to connect the module directly into a power circuit.
摘要翻译：一种模块化的光响应开关电路，能够在较高功率的应用中使用。该电路包括三端双向可控硅开关元件，与电源和负载串联。三端双向可控硅开关的栅电极连接到包括电容器的光响应门控电路和可在两个电阻水平之间切换的至少一个光响应电阻器。当光响应电阻器呈现一个电阻电平时，电容器被充电，并且当光依赖电阻器呈现另一个电阻电平时，电容器被放电到三端双向可控硅的栅极中。开关电路的组件被封装在其中具有屏幕的圆柱形模块中，光响应电阻器的有效表面通过该屏幕可以接收光，并且具有一对端子以将模块直接连接到电源电路中。

29. 发明授权

US3610939A Electrooptical switch structure 失效
标题翻译：电动开关结构
公开(公告)号：US3610939A
公开(公告)日：1971-10-05
申请号：US3610939D
申请日：1970-03-19
申请人： GRI COMPUTER CORP
发明人： FITZGERALD KENNETH E
IPC分类号： H03K17/968 , G01D5/34 , G01D5/36 , H01J1/56
CPC分类号： H03K17/968
摘要： An integrally formed switch structure for changing the level of light upon an electrical impedance from an elongated light source. The switch structure comprises a rotatable sleeve positioned snugly for sliding rotation around the elongated light source, the sleeve having light-opaque and light-transmissive portions. A resiliently biased detent mechanism is used for providing two fixed positions for the sleeve, one of the positions permitting light to pass from the source through the light-transmissive portion of the sleeve to the impedance and the other of the positions interposing the light-opaque portion of the sleeve between the source and the impedance to prevent light from the source from being transmitted to the impedance. The detent mechanism includes a ridge substantially parallel to the axis of rotation of the sleeve. The ridge is formed by the intersection of two surface areas on the outer surface of the sleeve so that the sleeve may be held in its operative and inoperative positions by the detent mechanism which bears against a selected one of the surface areas to retain the sleeve in one of the fixed positions. A masking projection extends from the outer surface of the sleeve adjacent the light-transmissive portion of the sleeve for optically isolating the electrical impedance from optical interference from adjoining sleeves. Finally, a lever arm is connected to the sleeve which is manually engageable to rotate the sleeve from one fixed position to the other fixed position.

30. 发明授权

US3507996A Photoelectric keyboard 失效
公开(公告)号：US3507996A
公开(公告)日：1970-04-21
申请号：US3507996D
申请日：1968-01-29
申请人： TELETYPE CORP
发明人： LENO THEODORE M
IPC分类号： H03K17/968 , H04L13/16 , H04L15/20
CPC分类号： H03K17/968 , B41J5/08 , H04L13/16

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