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    • 2. 发明授权
    • Reflective optical limiter
    • 反射光学限制器
    • US09223157B2
    • 2015-12-29
    • US14343922
    • 2012-09-12
    • Ariela DonvalYuval OfirDoron NevoMoshe Oron
    • Ariela DonvalYuval OfirDoron NevoMoshe Oron
    • G02F1/01G02F1/19
    • G02F1/0147G02F1/19G02F2201/50G02F2202/30G02F2203/52
    • An optical limiter comprises a glass backing, a glass cover, and a layer of a phase changing material placed between said glass backing and said glass cover, the phase changing material comprising a transparent matrix having embedded particles of material that changes its optical properties due to temperature induced phase change of said material. The optical properties may change from transparent to reflective, from transparent to refractive or from transparent to scattering. The phase changing material is preferably at least one material selected from the group consisting of the elements Antimony, Bismuth, Cadmium, Lead, Tin and Indium and low-melting-point alloys of two or more of these elements. Two or more layers of phase changing materials may be used in a stack configuration, with each of the phase changing materials having a unique melting temperature.
    • 光学限制器包括玻璃背衬,玻璃盖和放置在所述玻璃背衬和所述玻璃盖之间的相变材料层,所述相变材料包括具有嵌入的材料颗粒的透明基质,所述颗粒具有改变其光学性质的原因, 所述材料的温度诱导相变。 光学性质可以从透明到反射,从透明到折射或从透明变为散射。 相变材料优选为选自元素锑,铋,镉,铅,锡和铟的至少一种材料和这些元素中的两种或更多种的低熔点合金。 两层或多层相变材料可以以叠层构型使用,每个相变材料具有独特的熔化温度。
    • 7. 发明申请
    • Method and apparatus for isolating a location of a fault in a passive optical network
    • 用于隔离无源光网络中的故障位置的方法和装置
    • US20090129773A1
    • 2009-05-21
    • US11986418
    • 2007-11-21
    • Moshe Oron
    • Moshe Oron
    • H04B10/08H04B17/00
    • H04B10/0793H04J14/0221H04J14/0227H04J14/0232H04J14/0246H04J14/0247H04J14/025H04J14/0252H04J14/0282
    • A method and apparatus of isolating a location of a fault in an optical network may include using communications traffic signals and network nodes to determine excess power losses without interrupting service or requiring additional external test equipment. A transmit optical network node is configured to measure the transmit power of multiple wavelengths of a transmitted optical signal. A receive optical network node is configured to measure the receive power of the same multiple wavelengths. Power differentials of the transmit and receive optical power for each wavelength may be calculated. Optical power losses as a function of the optical path distance between the transmit and receive optical network nodes my be determined. The data may be used to isolate the location of a fault in a passive optical network based on the differences between the optical power losses of the multiple wavelengths thereby reducing troubleshooting time and network downtime.
    • 隔离光网络中的故障位置的方法和装置可以包括使用通信业务信号和网络节点来确定多余的功率损耗而不中断服务或需要额外的外部测试设备。 发送光网络节点被配置为测量所发送的光信号的多个波长的发射功率。 接收光网络节点被配置为测量相同多个波长的接收功率。 可以计算每个波长的发射和接收光功率的功率差。 作为发射和接收光网络节点之间的光路距离的函数的光功率损耗,我将被确定。 该数据可以用于基于多个波长的光功率损耗之间的差异来隔离无源光网络中故障的位置,从而减少故障排除时间和网络停机时间。