公开(公告)号：US20240353290A1

公开(公告)日：2024-10-24

申请号：US18302893

申请日：2023-04-19

申请人： The Boeing Company

发明人： Jason S. Damazo ,  Dejan Nikic ,  Dominic Martinez ,  Shahriar Khosravani ,  Philipp Andreas Boettcher

IPC分类号： G01M11/00 ,  G01M11/02

CPC分类号： G01M11/332 ,  G01M11/0214

摘要： A system for calibrating the light sensitivity of a camera includes a light emitter for emitting a light pulse, a fiber splitter for receiving the light pulse via an input port and providing first and second portions of the light pulse to respective first and second output ports, and a light collector for receiving the first portion from the first output port and converting the first portion to a first signal representative of a light characteristic of the first portion. A first fiber optic cable connects the light emitter and the input port, a second fiber optic cable connects the first output port and the light collector, and a third fiber optic cable has a first cable end connected with the second output port and a second cable end for emitting the second portion of the light pulse for capture by the camera. A related method is also provided.

公开(公告)号：US12123799B2

公开(公告)日：2024-10-22

申请号：US16765564

申请日：2018-11-09

申请人： HAMAMATSU PHOTONICS K.K.

发明人： Takashi Kasahara ,  Katsumi Shibayama ,  Masaki Hirose ,  Toshimitsu Kawai ,  Hiroki Oyama ,  Yumi Kuramoto

IPC分类号： G01M11/00 ,  G01J3/02 ,  G01J3/26 ,  G01R1/067 ,  G01R27/26 ,  G01R31/52 ,  G02B5/28 ,  G02B26/00

CPC分类号： G01M11/00 ,  G01J3/0243 ,  G01J3/26 ,  G01R1/0675 ,  G01R27/2605 ,  G01R31/52 ,  G02B5/28 ,  G02B26/001

摘要： An electrical inspection method includes: a step of preparing a wafer in which a plurality of Fabry-Perot interference filter portions is formed, each of the plurality of Fabry-Perot interference filter portions in which a distance between a first mirror portion and a second mirror portion facing each other varies by an electrostatic force; and a step of inspecting electrical characteristics of each of the plurality of Fabry-Perot interference filter portions.

公开(公告)号：US20240337706A1

公开(公告)日：2024-10-10

申请号：US18527798

申请日：2023-12-04

申请人： Samsung Display Co., LTD.

发明人： Woong-Jae CHANG ,  SORIM PARK ,  Hee Dok CHOI ,  YOUNGMYO HWANG

IPC分类号： G01R31/66 ,  B08B13/00 ,  G01M11/00

CPC分类号： G01R31/66 ,  B08B13/00 ,  G01M11/00

摘要： A panel inspection apparatus includes an inspection zone including an inlet through which a display panel is input, an outlet through which the display panel is discharged, and an inspection line extending from the inlet to the outlet through which the display panel is moved, a return zone including a return line extending to the inlet of the inspection zone, a panel carrier on which the display panel is seated, moving from the inlet of the inspection zone to the outlet, and returning from the outlet to the inlet through the return line, and a cleaning part located in the return zone and cleaning the panel carrier in the return line.

公开(公告)号：US20240337559A1

公开(公告)日：2024-10-10

申请号：US18699093

申请日：2022-10-07

申请人： CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  UNIVERSITE DE LILLE

发明人： Esben Ravn ANDRESEN ,  Jean YAMMINE

IPC分类号： G01M11/00

CPC分类号： G01M11/3145 ,  G01M11/3154 ,  G01M11/333

摘要： Devices and methods for conveying and controlling light beams, in particular for endomicroscopic imaging referred to as “lensless”. The devices and methods apply for example to endoscopic exploration, for example of organs of a living being even when the living being is able to move about freely during the measurement. More particularly, the devices and methods allow measurement of the transmission matrix of an optical fiber while “live”, even though the fiber may undergo changes in configuration.

公开(公告)号：US12111224B2

公开(公告)日：2024-10-08

申请号：US17612745

申请日：2020-06-03

申请人： SUMITOMO ELECTRIC OPTIFRONTIER CO., LTD. ,  SUMITOMO ELECTRIC INDUSTRIES, LTD.

发明人： Gouichi Fukumoto ,  Yoshifumi Hishikawa ,  Tetsufumi Tsuzaki ,  Toshiyuki Miyamoto ,  Kenichiro Otsuka

IPC分类号： G01M11/00 ,  H04B10/077

CPC分类号： G01M11/335 ,  H04B10/0775

摘要： An inspecting device has an optical switch selectively coupling a light source unit with each of light input/output ports; a first light detecting unit detecting a first intensity of test light input from an inspecting device on a counterpart side and passing through the optical switch; a second light detecting unit detecting a second intensity of the test light directed from the light source unit toward the optical switch; a third light detecting unit optically coupled to another end of a test optical fiber having one end connected to each of the plurality of light input/output ports, and detecting a third intensity of the test light received from the light source unit via the test optical fiber; and an internal loss recording unit recording a loss of an optical path inside the device obtained on a basis of a difference between the third intensity and the second intensity.

公开(公告)号：US20240328896A1

公开(公告)日：2024-10-03

申请号：US18191545

申请日：2023-03-28

申请人： VIAVI Solutions Inc.

发明人： Jay Gregory BRACE ,  Robert Matthew ADAMS ,  Eugene CHAN

IPC分类号： G01M11/00

CPC分类号： G01M11/33

摘要： In some implementations, a device may selectively illuminate, via a lighting module of the device, one or more fibers in a fiber optic cable using an illumination pattern. The device may detect, via a detection module of the device, illuminated fibers associated with the fiber optic cable based on the illumination pattern. The device may output, via the detection module of the device, information regarding the illuminated fibers. The device may generate, via one or more processors of the device, a report, based on the information, indicating a fiber mapping between the one or more fibers that were selectively illuminated via the lighting module and the illuminated fibers detected via the detection module.

公开(公告)号：US12098968B2

公开(公告)日：2024-09-24

申请号：US17763921

申请日：2020-09-29

申请人： Fujikura Ltd.

发明人： Shengyang Luo ,  Satoshi Matsunaga

IPC分类号： B65H49/20 ,  B65H49/34 ,  B65H63/00 ,  G01M11/00 ,  G01M11/02 ,  G02B6/44

CPC分类号： G01M11/33 ,  B65H49/20 ,  B65H49/34 ,  B65H63/006 ,  G01M11/0207 ,  G01M11/3109 ,  G02B6/4457 ,  G02B6/44785 ,  B65H2515/31 ,  B65H2701/32

摘要： A device that pulls out an optical fiber includes: a bobbin support that supports a bobbin rotatably about a rotation axis; a first pulling out unit that holds a first end of the optical fiber, pulls out a first portion of the optical fiber wound around the bobbin from a side of the first end in a state where the bobbin rotates in a predetermined direction, and returns a part of the first portion to the bobbin in a state where the bobbin rotates in a direction opposite to the predetermined direction; and a second pulling out unit that holds a second end of the optical fiber after the first pulling out unit pulls out the first portion from the side of the first end, and pulls out a second portion of the optical fiber wound around the bobbin from a side of the second end.

公开(公告)号：US20240310242A1

公开(公告)日：2024-09-19

申请号：US18121641

申请日：2023-03-15

申请人： II-VI Delaware, Inc.

发明人： Martin R. Williams

IPC分类号： G01M11/00 ,  G02B3/00 ,  G02B17/08

CPC分类号： G01M11/30 ,  G02B3/0087 ,  G02B17/0876

摘要： A bidirectional optical power monitor is disclosed that is used as an in-line monitor along a section of bidirectional optical fiber. The optical power monitor includes a bidirectional assembly of a lensing arrangement with a partially reflective element coupled to an output of the lensing arrangement. The reflective element directs small portions of optical signals propagating in each direction into separate ones of a pair of photodiodes (allowing for simultaneous measurement of power propagating in both directions along an optical fiber). The reflective element directs the majority of the optical signals through the lensing arrangement a second time and thereafter coupled into the proper section of optical fiber such that a continuity of signal propagation direction is maintained.

公开(公告)号：US20240288335A1

公开(公告)日：2024-08-29

申请号：US18572288

申请日：2021-06-25

申请人： NEC Corporation

发明人： Wataru KOHNO ,  Tomoyuki HINO

IPC分类号： G01M11/00 ,  G01H9/00 ,  G01M11/02

CPC分类号： G01M11/3145 ,  G01H9/004 ,  G01M11/0207 ,  G01M11/3181

摘要： The optical fiber sensor includes a setting unit which sets a section to be evaluated set in the optical fiber to one of a first section and a plurality of second sections, each of which is shorter than the first section, an extraction unit which extracts a state change of light from the optical fiber, and a detection unit which detects a change in the surrounding environment based on time-series data of the state change of light in the section to be evaluated.

公开(公告)号：US12050150B2

公开(公告)日：2024-07-30

申请号：US17738295

申请日：2022-05-06

申请人： EXFO Inc.

发明人： Michel Leclerc

IPC分类号： G01M11/00 ,  H04B10/071 ,  H04B10/2513

CPC分类号： G01M11/3127 ,  G01M11/3145 ,  H04B10/071 ,  H04B10/2513

摘要： There is provided a technique to reduce the Rayleigh coherence noise in OTDR measurements using spectral averaging of OTDR traces while at least partly cancelling chromatic dispersion pulse broadening on the averaged OTDR trace by applying a chromatic dispersion correction prior to averaging the OTDR traces. By correcting for chromatic dispersion pulse broadening, it allows to reduce the Rayleigh coherence noise without impacting the OTDR spatial resolution.