公开(公告)号：US06175580B1

公开(公告)日：2001-01-16

申请号：US09221811

申请日：1998-12-29

申请人： Masaki Odaka ,  Akira Yuba

发明人： Masaki Odaka ,  Akira Yuba

IPC分类号： G02B514

CPC分类号： B23K26/1476 ,  A61B18/20 ,  A61B18/22 ,  A61B2017/00119 ,  A61B2018/00005 ,  A61B2018/00636 ,  A61C1/0046 ,  B23K26/0096 ,  B23K26/146

摘要： A device for detecting failures in a laser transmitting passage includes an inner tube (80) made from an optical hollow waveguide and having a first space (122) through which laser is transported, an outer tube (78) surrounding and extending along the inner tube, and a detector which recognizes a first condition in which the first space is fluidly disconnected from the second space and a second condition in which the first space is fluidly connected to the second space. The first and second conditions can be determined from a pressure, flow rate, gas concentration, ingredient of gas, or temperature in first or second space.

摘要翻译： 用于检测激光传输通道中的故障的装置包括由光中空波导形成的内管（80），并具有通过其传送激光的第一空间（122），沿着内管围绕并延伸的外管（78） 以及识别第一空间与第二空间流畅地分离的第一状态的检测器和第一空间与第二空间流体连接的第二状态。 第一和第二条件可以从压力，流量，气体浓度，气体成分或第一或第二空间中的温度确定。

公开(公告)号：US06173609B1

公开(公告)日：2001-01-16

申请号：US08879952

申请日：1997-06-20

申请人： Douglas N. Modlin ,  Jan Frederik Jansen

发明人： Douglas N. Modlin ,  Jan Frederik Jansen

IPC分类号： G02B514

CPC分类号： G01F23/2922 ,  G02B6/0001 ,  G02B6/4298

摘要： An optical sensor (40) that provides a monotonic level-dependent output signal that varies smoothly and at an easily detectable rate over the entire length of the sensor includes first and second spaced waveguides (45, 50) extending along an axis, with each extending between its respective first and second ends. The first waveguide does not have surfaces contacting the liquid along the first waveguide's length. The second waveguide has at least a longitudinally extending portion of an outer surface in optical contact with the liquid. One or more web portions (50a, 50b, 50c) extend along and between both waveguides so that some of the light traveling along the first waveguide is coupled through the web portion(s) into the second waveguide. Light is injected into an end of the first waveguide (52), allowed to travel along the first waveguide, with a portion leaking into the second waveguide. Light is detected (55), with the amount representing the level of liquid.

摘要翻译： 提供在传感器的整个长度上平滑变化且易于检测的速率变化的单调级别依赖输出信号的光学传感器（40）包括沿轴线延伸的第一和第二间隔的波导（45,50），每个延伸 在其相应的第一和第二端之间。 第一波导不具有沿第一波导长度接触液体的表面。 第二波导至少具有与液体光学接触的外表面的纵向延伸部分。 一个或多个腹板部分（50a，50b，50c）沿着两个波导延伸并且在两个波导之间延伸，使得沿着第一波导传播的一些光通过腹板部分耦合到第二波导中。 光注入第一波导（52）的一端，允许沿着第一波导行进，一部分泄漏到第二波导中。 检测到光（55），其量代表液体的含量。

公开(公告)号：US06819849B1

公开(公告)日：2004-11-16

申请号：US07228793

申请日：1988-07-29

申请人： Gregory L. Tangonan ,  Melvin E. Pedinoff

发明人： Gregory L. Tangonan ,  Melvin E. Pedinoff

IPC分类号： G02B514

CPC分类号： G02B6/0288

摘要： Methods and apparatus are disclosed for an intrusion detection system for secure fiber optic communication systems. A guard signal is transmitted over the optical fiber communication link and both the modal power and modal phase delay of this signal are monitored. Intrusions into the link for the purpose of intercepting information being transmitted, cause changes in the modal phase delay and power of the guard signal. These changes, when detected by the monitoring system, indicate the presence of an intruder. A fiber profile which is optimal for both transmission and intrusion detection purposes is described.

摘要翻译： 公开了用于安全光纤通信系统的入侵检测系统的方法和装置。 通过光纤通信链路发送保护信号，并监视该信号的模式功率和模态相位延迟。 为了拦截正在发送的信息的目的而引入到链路中，导致保护信号的模态相位延迟和功率的改变。 当监控系统检测到这些更改时，会显示入侵者的存在。 描述了对于传输和入侵检测目的都是最佳的光纤轮廓。

公开(公告)号：US06491389B2

公开(公告)日：2002-12-10

申请号：US09897384

申请日：2001-07-03

申请人： Kenichi Yaguchi

发明人： Kenichi Yaguchi

IPC分类号： G02B514

CPC分类号： G02C5/143 ,  G02C5/16 ,  G02C5/20

摘要： A spectacle frame with ear bends each comprising an auricular front member connected to a temple, an auricular back member contactable with the back of the ear, and a connecting member for connecting the front member and the back member to be rotatable. The spectacle frame further comprises selective pressing means capable of changing a first state in which the back member presses the back of the ear with a second state in which the back member does not press the back of the ear.

摘要翻译： 具有耳部弯曲部的眼镜架，每个眼镜包括连接到镜腿的耳部前部构件，可与耳部后部接触的耳状部件，以及用于连接前部构件和后部构件以可旋转的连接构件。 眼镜架还包括选择性按压装置，其能够改变第二状态，其中背部构件按压耳部后部的第一状态，其中后部构件不按压耳朵的后部。

公开(公告)号：US06429447B1

公开(公告)日：2002-08-06

申请号：US09328715

申请日：1999-06-09

申请人： David R. Nowak ,  Ryan Lindsay

发明人： David R. Nowak ,  Ryan Lindsay

IPC分类号： G02B514

CPC分类号： G01F23/2927 ,  Y10S250/902

摘要： An optical device for measuring a level of a fluid in a container wherein a light conducting body having a top surface and a bottom surface is positioned within the container and into the fluid. A first end of the light conducting body and an oppositely disposed second end, preferably having stepped end surfaces, reflect and refract light in a predetermined manner based upon the fluid level in the container. A resulting brightness of the top surface is therefore inversely proportional to the level of the fluid. Such an optical device is particularly suited toward application to a vehicle fuel tank.

摘要翻译： 一种用于测量容器中流体水平的光学装置，其中具有顶表面和底表面的导光体位于容器内并进入流体。 导光体的第一端和相对设置的第二端（优选具有阶梯式端面）基于容器中的液体水平以预定方式反射和折射光。 因此，顶表面的所得亮度因此与流体的水平成反比。 这种光学装置特别适合于应用于车辆燃料箱。