公开(公告)号：US20190064432A1

公开(公告)日：2019-02-28

申请号：US16117869

申请日：2018-08-30

申请人： University of Pittsburgh - Of the Commonwealth System of Higher Education

发明人： PENG KEVIN CHEN ,  AIDONG YAN ,  MICHAEL P. BURIC ,  PAUL R. OHODNICKI ,  SHENG HUANG

IPC分类号： G02B6/02 ,  G02B6/293 ,  G01N21/49 ,  H01M8/04007

CPC分类号： G02B6/02204 ,  G01M11/3172 ,  G01M11/37 ,  G01N21/49 ,  G02B6/02033 ,  G02B6/02147 ,  G02B6/0229 ,  G02B6/29317 ,  G02B6/29319 ,  H01M8/04067 ,  H01M2008/1293

摘要： A method of making an optical fiber sensor device for distributed sensing includes generating a laser beam comprising a plurality of ultrafast pulses, and focusing the laser beam into a core of an optical fiber to form a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to a longitudinal axis of optical fiber. Also, an optical fiber sensor device for distributed sensing includes an optical fiber having a longitudinal axis, a core, and a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to the longitudinal axis of the optical fiber. Also, a distributed sensing method and system and an energy production system that employs such an optical fiber sensor device.

公开(公告)号：US09874508B2

公开(公告)日：2018-01-23

申请号：US14912852

申请日：2014-04-08

申请人： Antonio A. Garcia ,  Luis Nunez ,  Vladimiro Mujica

发明人： Antonio A. Garcia ,  Luis Nunez ,  Vladimiro Mujica

IPC分类号： G01N15/02 ,  G01B11/24 ,  G02B6/00 ,  G01M11/00 ,  G01N33/569 ,  G01N33/543 ,  G01N33/553 ,  G01N15/00 ,  G02B6/26 ,  G01N21/88

CPC分类号： G01N15/0205 ,  G01B11/24 ,  G01J3/0205 ,  G01J3/44 ,  G01M11/37 ,  G01N33/54346 ,  G01N33/553 ,  G01N33/56983 ,  G01N2015/0065 ,  G01N2021/8835 ,  G01N2333/185 ,  G02B6/262

摘要： An apparatus for particle size and a distribution of a population of particle measurements, comprising: a non-monochromatic light source that emits a plurality of a non-monochromatic rays, a medium that includes a particle, wherein the medium is a liquid phase and the particle is suspended within the medium to form a particle-suspension, a droplet of the particle-suspension wherein the droplet is provided with a curved surface, and a detector that is provided with a light providing element.

公开(公告)号：US20170084050A1

公开(公告)日：2017-03-23

申请号：US15310605

申请日：2014-06-17

申请人： HERAEUS TENEVO LLC

发明人： Qiulin MA ,  Evan P. GREEN ,  James E. BEAVERS, Jr.

IPC分类号： G06T7/62 ,  G06T7/194 ,  G06T7/00 ,  G06T7/136 ,  G01B11/08 ,  G01M11/00

CPC分类号： G06T7/62 ,  C03B37/02 ,  G01B11/08 ,  G01M11/30 ,  G01M11/37 ,  G01N21/896 ,  G01N21/952 ,  G01N21/958 ,  G06T7/0004 ,  G06T7/136 ,  G06T7/194 ,  H04N2005/2255

摘要： An apparatus and a method for measurement of transparent cylindrical articles during their manufacture in high temperature furnaces having openings for viewing the articles as they pass through the furnace. The cylindrical articles may, for example, be optical fiber preforms which have at least two layers of vitreous material and from which optical fibers are made. Measurement is accomplished using a digital camera with a sensing and digital recording device and a lens, and a processor programmed with an algorithm which analyzes the images recorded by the sensing and digital recording device by eliminating noise, identifying and locating the outer edges of the transparent cylindrical article and calculating measurements of the article including the diameter and the axial center of the article.

公开(公告)号：US09494485B2

公开(公告)日：2016-11-15

申请号：US14200718

申请日：2014-03-07

申请人： Google Inc.

发明人： Evan M. Richards ,  Anurag Gupta

IPC分类号： G01N21/94 ,  G01M11/00 ,  G01B11/27

CPC分类号： G01M11/37 ,  G01B11/27

摘要： A system for measuring transparent optical elements includes a beam generator, optomechanics, an imaging module, and a logic unit. The beam generator is driven to emit a beam directed at a transparent optical element that is aligned by optomechanics. An image is captured of the beam after the beam reflects off of surfaces of the transparent optical element. The image is analyzed to measure tolerances of the transparent optical element.

摘要翻译： 用于测量透明光学元件的系统包括光束发生器，光学机构，成像模块和逻辑单元。 光束发生器被驱动以发射指向通过光学机构对准的透明光学元件的光束。 在光束从透明光学元件的表面反射之后，捕获光束的图像。 分析图像以测量透明光学元件的公差。

公开(公告)号：US20160223774A1

公开(公告)日：2016-08-04

申请号：US14136434

申请日：2013-12-20

申请人： Corning Cable Systems, LLC

发明人： Kevin Wallace Bennett ,  Seldon David Benjamin ,  Douglas LLewellyn Butler ,  William Carl Hurley

IPC分类号： G02B6/44 ,  H04B10/40 ,  G02B6/02

CPC分类号： G02B6/4482 ,  B29C47/00 ,  B29C47/02 ,  B29D11/00663 ,  B29D11/00721 ,  B29L2011/0075 ,  C03C25/1065 ,  C03C25/12 ,  G01M11/37 ,  G02B6/02042 ,  G02B6/02395 ,  G02B6/3831 ,  G02B6/3851 ,  G02B6/3885 ,  G02B6/4246 ,  G02B6/4249 ,  G02B6/4292 ,  G02B6/4403 ,  G02B6/448 ,  G02B6/4486 ,  H04B10/40

摘要： A multicore optical fiber with a reference section having a material defining a marked multicore glass optical fiber. The multicore fibers can be in groupings, for example, the groupings can be in the form of one of an optical fiber ribbon covered by a matrix, and a tight buffered cable. Fiber optic connectors can be assembled to the multicore optical fiber at either or both ends, and the colored portion can be associated with the optical fiber connector aligning the optical core elements with the optical connectors. The assembly can have at least one transceiver device with a transmit port and a receive port defining a two-way communication channel. Further aspects describe methods of manufacturing multicore fibers including application of curable coatings and reference sections.

摘要翻译： 具有参考部分的多芯光纤具有限定标记的多芯玻璃光纤的材料。 多芯纤维可以分组，例如，分组可以是由矩阵覆盖的光纤带之一的形式，以及紧缓冲电缆。 光纤连接器可以在两端或两端组装到多芯光纤，并且着色部分可以与将光学核心元件与光学连接器对准的光纤连接器相关联。 组件可以具有至少一个收发器装置，其具有限定双向通信信道的发送端口和接收端口。 另外的方面描述了制造多芯纤维的方法，包括涂覆可固化涂层和参考部分。

公开(公告)号：US20150292981A1

公开(公告)日：2015-10-15

申请号：US14437776

申请日：2013-10-22

申请人： THE ARIZONA BOARD OF REGENTS ON BEHALF OF THE UNIVERSITY OF ARIZONA

发明人： Robert A. Norwood ,  Khanh Q. Kieu ,  Roland Himmelhuber

IPC分类号： G01M11/00 ,  G01N21/63

CPC分类号： G01M11/37 ,  G01N21/23 ,  G01N21/636 ,  G01N2021/218 ,  G01N2021/637 ,  G01N2021/653 ,  G02B21/0016 ,  G02B21/002

摘要： Probe beams are scanned with respect to waveguide substrates to generate optical harmonics. Detection of the optical harmonic radiation is used to image waveguide cores, claddings, or other structures such as electrodes. The detected optical radiation can also be used to provide estimates of linear electrooptic coefficients, or ratios of linear electrooptic coefficients. In some cases, the poling of polymer waveguide structures is monitored during fabrication based on a second harmonic of the probe beam. In some examples, third harmonic generation is used for imaging of conductive layers.

摘要翻译： 探头光束相对于波导基板扫描以产生光学谐波。 光谐波辐射的检测用于对波导芯，包层或诸如电极的其它结构进行成像。 所检测的光辐射也可用于提供线性电光系数或线性电光系数的比率的估计。 在一些情况下，基于探测光束的二次谐波，在制造期间监测聚合物波导结构的极化。 在一些示例中，三次谐波产生用于导电层的成像。

公开(公告)号：US20150253185A1

公开(公告)日：2015-09-10

申请号：US14200718

申请日：2014-03-07

申请人： Google Inc.

发明人： Evan M. Richards ,  Anurag Gupta

IPC分类号： G01J1/42 ,  G01J4/04

CPC分类号： G01M11/37 ,  G01B11/27

摘要： A system for measuring transparent optical elements includes a beam generator, optomechanics, an imaging module, and a logic unit. The beam generator is driven to emit a beam directed at a transparent optical element that is aligned by optomechanics. An image is captured of the beam after the beam reflects off of surfaces of the transparent optical element. The image is analyzed to measure tolerances of the transparent optical element.

摘要翻译： 用于测量透明光学元件的系统包括光束发生器，光学机构，成像模块和逻辑单元。 光束发生器被驱动以发射指向通过光学机构对准的透明光学元件的光束。 在光束从透明光学元件的表面反射之后，捕获光束的图像。 分析图像以测量透明光学元件的公差。

公开(公告)号：US20150009320A1

公开(公告)日：2015-01-08

申请号：US14376355

申请日：2013-02-01

申请人： TYCO ELECTRONICS RAYCHEM BVBA

发明人： Marvin Klein ,  Milan Maksimovic ,  Gerard Cornelis Van Den Eijkel

IPC分类号： G01M11/00 ,  G06T7/00

CPC分类号： G01M11/30 ,  G01M11/35 ,  G01M11/37 ,  G01N21/896 ,  G01N21/952 ,  G01N21/958 ,  G01N2021/8832 ,  G01N2021/9511 ,  G06T7/0008 ,  G06T2207/10004 ,  G06T2207/10016 ,  G06T2207/10152 ,  G06T2207/30108

摘要： A visual inspection system (100, 200) for optical fibers (150) includes at least a pattern source (120, 220A, 220B, 220C, 520); at least a first illumination source (130, 230A, 230B, 230C, 510, 522) to direct light towards an optical fiber (150); and at least a first camera (140, 240A, 240B, 240C, 540) positioned at an opposite side of the fiber (150) from the pattern source (120, 220A, 220B, 220C, 520). At least one image (170, 180, 190) of the optical fiber (150) is taken and a pattern visible through the optical fiber (150) in the image (170, 180, 190) may be analyzed to detect distortions in the pattern.

摘要翻译： 用于光纤（150）的视觉检查系统（100,200）至少包括图案源（120,220A，220B，220C，520）; 至少第一照明源（130,230A，230B，230C，510,522）以将光引向光纤（150）; 以及位于与所述图案源（120,220A，220B，220C，520）相对的所述光纤（150）的相对侧的至少第一相机（140,240A，240B，240C，540）。 拍摄光纤（150）的至少一个图像（170,180,190），并且可以分析通过图像（170,180,190）中的光纤（150）可见的图案以检测图案中的失真 。

公开(公告)号：US20110277510A1

公开(公告)日：2011-11-17

申请号：US13191054

申请日：2011-07-26

申请人： Karsten Contag

发明人： Karsten Contag

IPC分类号： G02B6/255 ,  C03B37/07

CPC分类号： G02B6/2551 ,  G01M11/37

摘要： A splicer comprises a positioning device, in which the fiber ends in general have a residual offset. A memory stores a predetermined relationship between the possible offset and a parameter which controls the application of heat. The parameter which controls the application of heat, for example the splicing time for a predetermined splicing current, is defined on the basis of an actual offset which can be recorded by means of cameras.

摘要翻译： 捻接器包括定位装置，其中光纤端部通常具有残余偏移。 存储器存储可能的偏移和控制热应用的参数之间的预定关系。 基于可以通过照相机记录的实际偏移来定义控制加热的参数，例如预定拼接电流的拼接时间。

公开(公告)号：US07538892B2

公开(公告)日：2009-05-26

申请号：US11748931

申请日：2007-05-15

申请人： Ernst Parzl ,  Johann Piegendorfer ,  Martin Zöttl

发明人： Ernst Parzl ,  Johann Piegendorfer ,  Martin Zöttl

IPC分类号： G01B11/30

CPC分类号： G01M11/37

摘要： In order to provide light guides, in particular in the form of glass rod portions, with improved end faces, the invention provides a method for examining glass rods, in particular light guides, in which the glass rods are arranged in front of two cameras, the cameras recording the end faces from the sides, in two different radial viewing directions with respect to the longitudinal axis of the glass rods, and the planarity and angularity of the contour of the end faces being optically and contactlessly determined with both cameras on the basis of the recordings, and a glass rod automatically being rejected and/or sorted by means of a rejecting/sorting device if there is any deviation of the planarity or angularity of the end faces of the glass rod from a respectively prescribed set range.

摘要翻译： 为了提供特别是玻璃棒部分的导光体，具有改进的端面，本发明提供一种用于检查玻璃棒，特别是导光体的方法，其中玻璃棒布置在两个照相机的前面， 照相机相对于玻璃棒的纵向轴线以两个不同的径向观察方向从两侧记录端面，并且基于两个照相机在光学上和非接触地确定端面轮廓的平面度和角度 的记录，并且如果玻璃棒的端面与相应规定的设定范围的平面度或角度有任何偏差，则玻璃棒通过拒绝/分类装置自动被拒绝和/或分类。