公开(公告)号：US11682275B2

公开(公告)日：2023-06-20

申请号：US17327762

申请日：2021-05-24

Applicant: Po-Yang Chien ,  Wei-Yi Chang ,  Chun-Chieh Chen ,  Chen-Cheng Wang

Inventor： Po-Yang Chien ,  Wei-Yi Chang ,  Chun-Chieh Chen ,  Chen-Cheng Wang

IPC: G08G5/00 ,  G08B5/36 ,  H04N7/15 ,  H04N7/14 ,  G06F3/04847 ,  H04R1/08 ,  G01J3/50 ,  G01J11/00 ,  F21V33/00 ,  G06F1/16 ,  G06F3/04817 ,  H04R3/00 ,  F21W111/00

CPC classification number: G08B5/36 ,  F21V33/0052 ,  G01J3/506 ,  G01J11/00 ,  G06F3/04847 ,  H04N7/142 ,  H04N7/15 ,  H04R1/08 ,  F21W2111/00 ,  G06F1/1613 ,  G06F3/04817 ,  H04R3/00

Abstract: An electronic device with an auxiliary lighting function and an operation method thereof are provided. The electronic device includes a first body, a display screen, and a light-emitting module. The first body has a first surface. The first surface includes a screen area and a border area. The border area surrounds the screen area. The display screen is disposed in the screen area of the first body. The light-emitting module is disposed in the border area of the first body. The light-emitting module provides an illumination light in at least one first area of the border area, and provides an indicating light in at least one second area of the border area.

公开(公告)号：US20230038468A1

公开(公告)日：2023-02-09

申请号：US17392859

申请日：2021-08-03

Applicant: Rockwell Collins, Inc.

Inventor： Han Chi Hsieh ,  Wenlu Chen ,  Oliver S. King

IPC: G01J11/00 ,  H03K3/037

Abstract: A circuit and method for timing-tolerant optical pulse energy electrical conversion receives a current pulse stream converted from an input optical pulse stream (which may be periodic or nonperiodic), converts the current pulse stream to an electrical waveform of voltage pulses and detects each voltage pulse, e.g., by its leading edge. The conversion circuit may include a divider circuit for receiving the electrical waveform, dividing the waveform into a multi-channel output of divided electrical waveforms, and sequential logic circuits for adjusting a width window of each voltage pulse according to an adjustable delay.

公开(公告)号：US11360023B2

公开(公告)日：2022-06-14

申请号：US17086814

申请日：2020-11-02

Applicant: INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Alessandro Tomasino ,  Riccardo Piccoli ,  Roberto Morandotti ,  Luca Razzari ,  Yoann Jestin

IPC: G01N21/3581 ,  G01J11/00 ,  G01J3/10 ,  G01J3/42

Abstract: A device, a system and a method for homodyne solid-state biased coherent detection of terahertz pulses in a range between 0.1 and 11 THz, the device comprising a metallic slit between, and parallel to, two longitudinal metallic electrodes, deposited on a surface of a substrate, and covered with a layer of nonlinear material, wherein a width of the metallic slit and a thickness of the nonlinear material layer are selected in relation to a central wavelength of the THz pulses. The method comprises focusing a THz beam and a pulsed laser beam of pulse energies in a range between 10 and 100 nJ onto the metallic slit, the metallic electrodes being biased by a static DC voltage bias selected in a range between 20 VPP and 200 VPP; and retrieving a terahertz pulse waveform using the terahertz pulse repetition rate as synchronism.

公开(公告)号：US20220011167A1

公开(公告)日：2022-01-13

申请号：US17484563

申请日：2021-09-24

Applicant: National Yang Ming Chiao Tung University

Inventor： Chih-Wei LUO ,  Yi-Chen LIU ,  Tien-Tien YEH

IPC: G01J11/00

Abstract: An optical pulse measuring method measuring an optical pulse generated from a pulse light source is provided. The method includes: splitting the optical pulse and then focusing them at a measuring point, so as to generate gas plasma by the autocorrelation of the split optical pulses; receiving the sound signal from the gas plasma and generate a plasma sound signal; and using the plasma sound signal to calculate the characteristics of the optical pulse. A measuring device is also provided.

公开(公告)号：US20220011163A1

公开(公告)日：2022-01-13

申请号：US17379507

申请日：2021-07-19

Applicant: University of South Florida

Inventor： Zhimin Shi ,  Darrick Hay ,  Ziyi Zhu ,  Yiyu Zhou ,  Robert W. Boyd

IPC: G01J4/04 ,  G01J11/00

Abstract: An apparatus measures the transverse profile of vectorial optical field beams, including both the phase and the polarization spatial profile. The apparatus contains a polarization separation module, a weak perturbation module, and a detection module. Characterizing the transverse profile of vector fields provides an optical metrology tool for both fundamental studies of vectorial optical fields and a wide spectrum of applications, including microscopy, surveillance, imaging, communication, material processing, and laser trapping.

公开(公告)号：US20210383659A1

公开(公告)日：2021-12-09

申请号：US17327762

申请日：2021-05-24

Applicant: Po-Yang Chien ,  Wei-Yi Chang ,  Chun-Chieh Chen ,  Chen-Cheng Wang

Inventor： Po-Yang Chien ,  Wei-Yi Chang ,  Chun-Chieh Chen ,  Chen-Cheng Wang

IPC: G08B5/36 ,  H04N7/15 ,  H04N7/14 ,  G06F3/0484 ,  H04R1/08 ,  F21V33/00 ,  G01J3/50 ,  G01J11/00

Abstract: An electronic device with an auxiliary lighting function and an operation method thereof are provided. The electronic device includes a first body, a display screen, and a light-emitting module. The first body has a first surface. The first surface includes a screen area and a border area. The border area surrounds the screen area. The display screen is disposed in the screen area of the first body. The light-emitting module is disposed in the border area of the first body. The light-emitting module provides an illumination light in at least one first area of the border area, and provides an indicating light in at least one second area of the border area.

公开(公告)号：US11169031B2

公开(公告)日：2021-11-09

申请号：US16165625

申请日：2018-10-19

Applicant: NATIONAL CHIAO TUNG UNIVERSITY

Inventor： Chih-Wei Luo ,  Yi-Chen Liu ,  Tien-Tien Yeh

IPC: G01J11/00

Abstract: An optical pulse measuring method measuring an optical pulse generated from a pulse light source is provided. The method includes: splitting the optical pulse and then focusing them at a measuring point, so as to generate gas plasma by the autocorrelation of the split optical pulses; receiving the sound signal from the gas plasma and generate a plasma sound signal; and using the plasma sound signal to calculate the characteristics of the optical pulse. A measuring device is also provided.

公开(公告)号：US11105687B2

公开(公告)日：2021-08-31

申请号：US16484605

申请日：2018-02-20

Applicant: UNIVERSIDAD DE SALAMANCA ,  SPHERE ULTRAFAST PHOTONICS, S. L.

Inventor： Iñigo Sola Larrañaga ,  Benjamín Alonso Fernández ,  Rosa María Romero Muñiz

IPC: G01J11/00 ,  H01S3/00

Abstract: An apparatus and a method for in-line measurement of laser pulses with time-dependent polarization are described, which make possible to carry out in-line measurement of laser pulses whose polarization depends on time. For this, one or more polarization projections are selected: the spectrometer detects the projection on the extraordinary propagation axis of a birefringent system to measure the spectrum in that component, also the projection on the ordinary propagation axis, to measure the spectrum in that component, and finally a projection in an intermediate direction that allows to measure the interference spectrum between the two components. The method allows extracting the temporal evolution of the pulse and its polarization state as a function of time, spectral amplitudes and phases of the various polarization projections of the beam.

公开(公告)号：US11085831B2

公开(公告)日：2021-08-10

申请号：US16576399

申请日：2019-09-19

Applicant: Xi'an Institute of Optics and Precision Mechanics of CAS

Inventor： Qibing Sun ,  Chao Zeng ,  Leiran Wang ,  Wenfu Zhang ,  Wei Zhao

IPC: G01J11/00 ,  H04L27/26

Abstract: A high-resolution real-time time-frequency domain measuring device includes a light splitting unit used to split signal light to be measured, a time lens unit used to perform time domain amplification on the signal light to be measured, a dispersion Fourier transform unit used to perform Fourier transform on the signal light to be measured, and a detection unit used to receive and detect measured data. The time lens and the dispersion Fourier transform technology are used to realize the real-time measurement of sub-picosecond transient characteristics of the ultra-short pulse to accurately obtain the time-frequency domain information of the ultra-short pulse.

公开(公告)号：US20210131958A1

公开(公告)日：2021-05-06

申请号：US17086814

申请日：2020-11-02

Applicant: INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Alessandro TOMASINO ,  Riccardo PICCOLI ,  Roberto MORANDOTTI ,  Luca RAZZARI ,  Yoann JESTIN

IPC: G01N21/3581 ,  G01J11/00 ,  G01J3/42 ,  G01J3/10

Abstract: A device, a system and a method for homodyne solid-state biased coherent detection of terahertz pulses in a range between 0.1 and 11 THz, the device comprising a metallic slit between, and parallel to, two longitudinal metallic electrodes, deposited on a surface of a substrate, and covered with a layer of nonlinear material, wherein a width of the metallic slit and a thickness of the nonlinear material layer are selected in relation to a central wavelength of the THz pulses. The method comprises focusing a THz beam and a pulsed laser beam of pulse energies in a range between 10 and 100 nJ onto the metallic slit, the metallic electrodes being biased by a static DC voltage bias selected in a range between 20 VPP and 200 VPP; and retrieving a terahertz pulse waveform using the terahertz pulse repetition rate as synchronism.