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1.发明授权Method and an arrangement for fault location in a glass fibre optical waveguide 失效玻璃纤维光波导中故障定位的方法和装置
公开(公告)号：US4070118A
公开(公告)日：1978-01-24
申请号：US637745
申请日：1975-12-04
申请人： Stefan Maslowski , Oskar Krumpholz
发明人： Stefan Maslowski , Oskar Krumpholz
CPC分类号： G01S17/88 , G01M11/3154 , H04B10/43
摘要： A method of fault location in a glass fibre optical waveguide comprises using a laser device to provide pulses of light, feeding the light pulses into a glass fibre optical waveguide, feeding light pulses reflected from the fault in the glass fibre waveguide into the laser device in which their character is changed and determining the location of the fault from the known propagation time of the reflected pulses.The invention also includes an arrangement for carrying out this method.
摘要翻译： 一种玻璃纤维光波导中的故障定位方法包括使用激光装置提供脉冲光，将光脉冲馈送到玻璃纤维光波导中，将从玻璃光纤波导中的故障反射的光脉冲馈送到激光装置中 它们的特征被改变并且根据反射脉冲的已知传播时间确定故障的位置。
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公开(公告)号：US4027330A
公开(公告)日：1977-05-31
申请号：US455395
申请日：1974-03-27
申请人： Stefan Maslowski , Peter Huber , Horst Redlich
发明人： Stefan Maslowski , Peter Huber , Horst Redlich
摘要： A matrix to be used for fabricating disc shaped record carriers is produced by illuminating a photolacquer layer with a laser beam while the layer moves transverse to the beam axis and by controlling the beam so that it simultaneously produces a succession of spots modulated according to the information recorded and a continuous strip narrower than the spots and serving to provide a track guide for the scanning element of a playback device with which such a record carrier is to be used.
摘要翻译： 用于制造盘形记录载体的矩阵是通过用激光束照射光致抗蚀剂层而产生的，同时该层横向于光束轴线移动并且通过控制光束使得它同时产生根据信息调制的一系列光点 记录的和连续的条带比这些点窄，并且用于为要使用这种记录载体的回放装置的扫描元件提供轨迹引导。
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公开(公告)号：US3941945A
公开(公告)日：1976-03-02
申请号：US395456
申请日：1973-09-10
CPC分类号： G11B7/13 , H01S5/06213
摘要： A pickup system for playing back signals stored on the surface of a carrier in a form providing an optically detectable property which varies as a function of the time pattern of the stored signals, the storage being constituted by undulations or variations in the reflectivity of the carrier surface and the pickup system employing a laser beam which is reflected in a manner controlled by the stored information. The system includes a laser radiation generating element forming part of an optical resonator which also includes the carrier surface so that the intensity of radiation oscillations in the resonator is influenced by the surface and varies as the carrier moves relative to the laser element. The system also includes an output member for converting such intensity variations into an electrical signal representative of the stored signals.
摘要翻译： 拾取系统，用于以提供可被存储的信号的时间图形的函数变化的光学可检测特性的形式回放存储在载体表面上的信号，该存储由起伏或者载体的反射率的变化构成 表面和拾取系统采用以由存储的信息控制的方式反射的激光束。 该系统包括形成光谐振器的一部分的激光辐射发生元件，该谐振器还包括载体表面，使得谐振器中的辐射振荡的强度受到表面的影响，并且随着载体相对于激光元件的移动而变化。 该系统还包括用于将这种强度变化转换为表示存储的信号的电信号的输出构件。
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