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1. 发明授权

US4291977A Adjustment device for aligning a group of cyclically switched light transmitters or receivers with a single light receiver or transmitter 失效
标题翻译：调整装置，用于将一组周期性切换的光发射器或接收器与单个光接收器或发射器对准
公开(公告)号：US4291977A
公开(公告)日：1981-09-29
申请号：US41993
申请日：1979-05-24
申请人： Jurgen Erdmann , Walter von Stein
发明人： Jurgen Erdmann , Walter von Stein
IPC分类号： F16P3/14 , G01V8/22 , G01B11/26
CPC分类号： F16P3/14 , F16P3/144 , G01V8/22
摘要： An adjustment device for aligning a group of cyclically switched transmitters or receivers with a single receiver or transmitter of the kind in which a series of spatially spaced beams pass between the transmitters and the receiver, or alternatively between the transmitter and the receivers. In a preferred form the adjustment device is used to ensure alignment of a row of infra-red transmitters which direct beams of light to a photoelectric converter arranged at the focus of a concave mirror. The adjustment device features a coincidence circuit the outputs from which indicate that signals transmitted from the end transmitters of the row are received at the photoelectric converter. The outputs are used to energize respective adjustment indicating lamps. In a particularly preferred arrangement threshold circuitry is used to produce winking of the lamps when approximate adjustment has been achieved; continuous lighting of the lamps shows that accurate adjustment is present. The lamps can conveniently be placed adjacent their associated transmitters.
摘要翻译：一种调整装置，用于将一组周期性切换的发射器或接收器与单个接收器或发射器对准，其中一系列空间间隔的光束在发射器和接收器之间或者在发射器和接收器之间通过。在优选形式中，调整装置用于确保一排红外发射器的对准，其将光束引导到布置在凹面镜的焦点处的光电转换器。调整装置具有符合电路，其输出表示在光电转换器处接收从行的末端发送器发送的信号。输出用于给相应的调节指示灯通电。在特别优选的布置中，当实现近似调整时，阈值电路用于产生灯的眨眼; 灯的连续照明表明存在精确的调整。灯可以方便地放置在其相关联的发射器附近。

2. 发明授权

US4142105A Method for producing a switching signal on the passage of a contrast jump 失效
标题翻译：用于在对比度跳跃通过时产生切换信号的方法
公开(公告)号：US4142105A
公开(公告)日：1979-02-27
申请号：US807712
申请日：1977-06-16
申请人： Jurgen Erdmann
发明人： Jurgen Erdmann
IPC分类号： B41F33/00 , B65H23/04 , G06K7/10 , G01N21/30
CPC分类号： G06K7/10851 , B41F33/0081 , B65H23/046
摘要： A photoelectric detection system which has two sequential photoelectric receivers to determine the precise moment at which the boundary between two contrasting fields passes beneath the detectors irrespective of the relative contrast between the two fields. The signals from the two photoelectric detectors which change as the boundary progressively obscures their respective fields of view are firstly subtracted to produce a difference signal. The difference signal is then passed to a gated maximum value store which is operative during each difference pulse to store the maximum value of the difference occurring during that pulse. A fraction of this maximum value is then taken and compared with the instantaneous value of the difference as this value reduces, when these two values are equal an output pulse is generated and this output pulse always occurs at the same position of the boundary relative to the photoelectric receivers irrespective of the respective levels of contrast on either side of the boundary. In a modification especially useful for detecting the two boundaries of a register mark two sequential pulses are formed indicative of the movement of the two respective boundaries past the photoelectric receivers.
摘要翻译：具有两个顺序光电接收器的光电检测系统，用于确定两个对比场之间的边界通过检测器下方的精确时刻，而与两个场之间的相对对比度无关。首先减去来自两个光电探测器的随着边界逐渐模糊其各自视野而改变的信号，以产生差分信号。然后将差分信号传递到在每个差分脉冲期间操作的门控最大值存储，以存储在该脉冲期间发生的差的最大值。然后将该最大值的一小部分与该值的瞬时值进行比较，当这两个值相等时，当这两个值相等时，产生输出脉冲，并且该输出脉冲总是出现在边界相对于光电接收器，而不管边界两侧各自的对比度。在对于检测对准标记的两个边界特别有用的修改中，形成两个顺序脉冲，指示两个相应边界经过光电接收器的移动。

3. 发明授权

US4025796A Photoelectric instrument for measuring the length of an object 失效
标题翻译：用于测量物体长度的光电仪器
公开(公告)号：US4025796A
公开(公告)日：1977-05-24
申请号：US594554
申请日：1975-07-09
申请人： Jurgen Erdmann
发明人： Jurgen Erdmann
IPC分类号： G01B11/02 , G01N21/30
CPC分类号： G01B11/02
摘要： A photoelectronic instrument for measuring the length of an object by means of a slim scanning beam of light which, when not interrupted by the object, activates a photoelectric transducer, wherein, for the purpose of determining trigger points when half the light beam is obscured at the beginning and reemerges at the end of the period of cut-off, irrespective of the absolute magnitude of the light flux of the unobscured light beam, a circuit is provided for differentiating, with respect to time, a signal obtained from the photoelectric transducer and proportional to the magnitude of the light flux (light flux signal U.sub.1), a signal proportional to the differential quotient (dU.sub.1 /dt) thus obtained being rectified, multiplied by a preset factor (p.T), and the product of the multiplication and the light flux signal (U.sub.1) being applied to the inputs of a comparator functioning as a coincidence circuit for generating an output signal (U.sub.4) which, subject to an appropriate selection of the factor (p.T), abruptly changes when ##EQU1## WHERE U.sub.o is the light flux signal of the unobscured scanning light beam.
摘要翻译：一种光电仪器，用于通过薄的扫描光束来测量物体的长度，当光束不被物体中断时，其激活光电转换器，其中，为了在光束的一半被遮蔽时确定触发点在截止周期结束时的开始和重新生成，不管视野不足的光束的光束的绝对大小如何，提供了一种电路，用于相对于时间来分离从光电变换器获得的信号，以及与光通量（光通量信号U1）的大小成比例，与由此获得的差分商（dU1 / dt）成比例的信号被校正，乘以预设因子（pT），乘法和光的乘积通量信号（U1）被施加到用作产生输出信号（U4）的符合电路的比较器的输入端，所述输出信号（U4）在适当选择事实 r（p.T），当<图像>在Uo是视野扫描光束的光通量信号时突然变化。

4. 发明授权

US4012635A Light barrier system 失效
标题翻译：光屏障系统
公开(公告)号：US4012635A
公开(公告)日：1977-03-15
申请号：US604215
申请日：1975-08-13
申请人： Arthur Walter , Jurgen Erdmann
发明人： Arthur Walter , Jurgen Erdmann
IPC分类号： G01V8/14 , G08B13/184 , G08G1/04 , G01D21/04
CPC分类号： G08B13/184 , G01V8/14 , G08G1/04
摘要： A light barrier system is provided which includes a light transmitter, a light receiver to receive the light beam transmitted over a predetermined path, an indicator unit which is connected to the light receiver and produces a signal when an obstacle is detected in the path, and a power unit supplying the light transmitter, light receiver and indicator unit. The power unit consists essentially only of a rectifier. A pulsed light source is employed, operated by the discharge of a capacitor in the rectifier output.
摘要翻译：提供了一种遮光系统，其包括光发射器，用于接收在预定路径上传输的光束的光接收器，连接到光接收器并在路径中检测到障碍物时产生信号的指示器单元，以及提供光发射器，光接收器和指示器单元的电源单元。功率单元基本上仅由整流器组成。使用脉冲光源，通过在整流器输出中放电电容器来操作。

5. 发明授权

US4603976A Optical mark recognition apparatus 失效
标题翻译：光标识别装置
公开(公告)号：US4603976A
公开(公告)日：1986-08-05
申请号：US501723
申请日：1983-06-06
申请人： Gunter Fetzer , Jurgen Erdmann
发明人： Gunter Fetzer , Jurgen Erdmann
IPC分类号： B07C3/14 , G06K7/12 , G01J3/46
CPC分类号： G06K7/12 , B07C3/14
摘要： In optical mark recognition apparatus the light transmitter has two light sources 11, 12 which can be selectively switched on and which transmit light beams of different spectral compositions. A semi-permeable mirror 15 directs the light beams 13, 14 of both light sources 11, 12 along a common optical path 16 (FIG. 1).
摘要翻译：在光学标记识别装置中，光发射器具有两个光源11,12，它们可被选择性地接通并且传输不同光谱组成的光束。半透光镜15沿着公共光路16（图1）引导两个光源11,12的光束13,14。

6. 发明授权

US4523251A Electronic apparatus comprising an input stage with a binary output connected to a relay control circuit 失效
标题翻译：电子设备包括具有连接到继电器控制电路的二进制输出的输入级
公开(公告)号：US4523251A
公开(公告)日：1985-06-11
申请号：US425217
申请日：1982-09-28
申请人： Jurgen Erdmann , Karl O. Buchholz , Hartmut Knappe
发明人： Jurgen Erdmann , Karl O. Buchholz , Hartmut Knappe
IPC分类号： H01H47/32
CPC分类号： H01H47/325 , Y10T307/878
摘要： An electronic apparatus has an input stage (11) with a binary signal output (19). This signal output is connected to a relay control circuit which deenergizes or energizes the relay (15) in dependence on the output signal (0 or 1). The relay (15) can be held in the energized condition over a wide voltage range, without being overloaded, by a periodically limited energizing current. This is achieved, by way of example, by energizing the relay via a semiconductor switching device (transistor 14) which can be switched on and off by a Schmitt trigger (12) connected to the binary signal output. A capacitor (17) charged in dependence on the energizing current flowing through the relay is used to override the signal from the binary output (19) to switch the transistor (14) via the Schmitt trigger (12) so as to periodically energize the relay (15) (FIG. 1).
摘要翻译：电子设备具有具有二进制信号输出（19）的输入级（11）。该信号输出连接到继电器控制电路，该继电器控制电路根据输出信号（0或1）去激励或激励继电器（15）。继电器（15）可以通过周期性限定的通电电流在宽电压范围内保持在通电状态，而不会过载。这通过示例的方式通过经由可连接到二进制信号输出的施密特触发器（12）接通和断开的半导体开关器件（晶体管14）激励继电器来实现。使用依赖于通过继电器的激励电流进行充电的电容器（17）来覆盖来自二进制输出（19）的信号，以经由施密特触发器（12）切换晶体管（14），以周期性地给继电器（15）（图1）。

7. 发明授权

US4486656A Pulsed light barrier apparatus for direct connection to an a.c. supply 失效
标题翻译：用于直接连接到交流电源的脉冲光阻挡装置。供应
公开(公告)号：US4486656A
公开(公告)日：1984-12-04
申请号：US360018
申请日：1982-03-19
申请人： Jurgen Erdmann , Fritz Kuhn
发明人： Jurgen Erdmann , Fritz Kuhn
IPC分类号： F16P3/14 , G01V8/12 , G08B13/183 , H01J40/14
CPC分类号： G08B13/183 , F16P3/14 , F16P3/144 , G01V8/12
摘要： Pulsed light barrier apparatus is driven directly from an a.c. supply voltage connected to the terminals L and M with the terminal M being earthed. A storage capacitor 14 is charged during the positive half wave of the a.c. supply voltage and is discharged at a time determined by a programmable unijunction transistor 13 through a photodiode 11 to emit a flash of light which passes across a region monitored by the light barrier to a photoreceiver 26. A Zener diode limits the voltage across the storage capacitor 14 to a value less than the peak a.c. supply voltage. As soon as the voltage across the storage capacitor has reached the Zener breakdown voltage the excess energy from the a.c. supply voltage is directed through a rectifier diode 18 to a smoothing capacitor 19 where it forms a positive operating voltage for the light receiver arrangement. During the negative half wave of the a.c. supply voltage the electrical energy is supplied via a further rectifier diode 20 connected in the opposite direction to the rectifier diode 18 to a further smoothing capacitor 21 where it forms the negative operating voltage for the light receiver arrangement. The circuitry described prevents high initial currents on switching on the device, results in suppression of noise voltages, minimizes power losses and can be connected to a wide variety of control circuits without special interfaces.
摘要翻译：脉冲光屏障装置直接从a.c. 电源电压连接到端子L和M，端子M接地。在a.c.的正半波期间，存储电容器14被充电。电源电压并在由可编程单结晶体管13通过光电二极管11确定的时间放电，以将通过光栅所监视的区域的闪光发射到光接收器26.齐纳二极管限制存储电容器两端的电压 14到小于峰值ac的值电源电压。一旦存储电容器两端的电压达到齐纳击穿电压，则来自交流电的过量能量。电源电压通过整流二极管18引导到平滑电容器19，在平滑电容器19中，其形成用于光接收器装置的正工作电压。在a.c.的负半波期间。电源电压通过另一个整流二极管20提供，该整流二极管20以与整流二极管18相反的方向连接到另一个平滑电容器21，在该平滑电容器21中形成用于光接收器装置的负工作电压。所描述的电路可防止在接通器件时产生高初始电流，从而抑制噪声电压，最大限度地降低功率损耗，并可连接到各种不需要特殊接口的控制电路。

8. 发明授权

US4076979A Bottle color identification apparatus 失效
标题翻译：瓶色识别装置
公开(公告)号：US4076979A
公开(公告)日：1978-02-28
申请号：US701341
申请日：1976-06-30
申请人： Arthur Walter , Gunter Fetzer , Jurgen Erdmann
发明人： Arthur Walter , Gunter Fetzer , Jurgen Erdmann
IPC分类号： B07C5/34 , G01J3/51 , G01J3/34 , G01J3/50
CPC分类号： B07C5/3416 , G01J3/51 , G01J3/513
摘要： Bottle color identification apparatus with a light beam passing through the bottle, in which the light beam passing through the bottle is supplied to a spectral decomposition arrangement which emits a signal characteristic of the bottle color.A special application of the invention is the sorting of returnable bottles having the same size and shape but different colors.
摘要翻译：具有通过瓶子的光束的瓶颜色识别装置，其中通过瓶子的光束被提供给发射瓶颜色特征的信号的光谱分解装置。

9. 发明授权

US4339660A Reflection light barrier apparatus for recognizing both strongly and weakly reflecting objects 失效
标题翻译：用于识别强反射物体的反射光阻挡装置
公开(公告)号：US4339660A
公开(公告)日：1982-07-13
申请号：US150093
申请日：1980-05-15
申请人： Karl-Otto Buchholz , Jurgen Erdmann , Gunter Fetzer
发明人： Karl-Otto Buchholz , Jurgen Erdmann , Gunter Fetzer
IPC分类号： G01S7/499 , G01S17/02 , G01V8/14 , G01V9/04
CPC分类号： G01S7/499 , G01S17/026 , G01V8/14
摘要： A light transmitter directs light via a first polarizing filter, so that it is polarized in one plane, to a retro-reflecting device across a region to be monitored and the retro-reflector produces depolarization, or rotates the plane of polarization of the light, prior to directing it to a light receiver positioned adjacent the light transmitter. A second polarizing filter crossed relative to the first is positioned in front of the light receiver so that the light receiver will only recognize light whose plane of polarization has been appropriately rotated by the retro-reflector but not light reflected from a strongly reflecting object which interrupts the light barrier. Threshold circuitry evaluates whether a signal from a photoelectric convertor embodied in the receiver lies above or below a given threshold. Weakly reflecting objects are not recognized, because light reflected therefrom will be too weak to generate a signal above the required threshold. Various polarizing arrangements are described.
摘要翻译：光发射器经由第一偏振滤光器引导光，使得其在一个平面中被偏振到待监视的区域上的回射装置，并且后向反射器产生去极化，或者使光的偏振平面旋转，之后将其引导到位于光发射器附近的光接收器。相对于第一偏振滤波器交叉的第二偏振滤光器位于光接收器的前面，使得光接收器将仅识别其平面偏振已被后向反射器适当旋转的光，但不识别从强反射物体反射的光，其中断光屏障。阈值电路评估来自接收机中实现的光电转换器的信号是否高于或低于给定阈值。弱反射物体无法识别，因为反射的光将太弱，无法产生高于所需阈值的信号。描述各种偏振装置。

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