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公开(公告)号：US20190297703A1
公开(公告)日：2019-09-26
申请号：US16208242
申请日：2018-12-03
Applicant: Lumenetix, Inc.
Inventor： Matthew D. Weaver
Abstract: Some embodiments include a method of operating a tunable light module. The method can include driving a lamp in the tunable light module, having lamps of at least two colors, to produce a colored light according to the color mixing plan that corresponds to a correlated color temperature (CCT); measuring a light characteristic of the lamp using a light sensor; detecting a degradation level by comparing the measured light characteristic against an expected light characteristic; and adjusting a current level for driving the lamp at the CCT by referencing the color mixing plan and an alternative coefficient corresponding to the degradation level.
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公开(公告)号：US06940589B1
公开(公告)日：2005-09-06
申请号：US10381370
申请日：2000-09-25
Applicant: Motohiro Suyama , Yoshihiko Kawai , Tetsuya Morita , Koichiro Oba
Inventor： Motohiro Suyama , Yoshihiko Kawai , Tetsuya Morita , Koichiro Oba
CPC classification number: G01J1/44 , G01J2001/442 , G01J2001/4433 , G01J2001/444 , G01J2001/4466
Abstract: An optical measurement apparatus 10 primarily includes: a photon detection unit 12 for detecting incident photons, a time signal output unit 14 for outputting a time signal, and a storage unit 16 for storing the time signal outputted from the time signal output unit 14 when the photon detection unit 12 detects photons. The photon detection unit 12 includes a HPD 24 having a photocathode 24a and an APD 24b, a TZ amplifier 26, a peak holding circuit 28, and an A/D converter 30. The time signal output unit 14 includes a timer 32 and a counter 34. The storage unit 16 includes a comparator 36 and a memory 38. When photons impinge on the HPD 24, a trigger signal is outputted from the comparator 36, causing the photon-number outputted from the A/D converter 30 and the time data outputted from the counter 34 to be stored in the memory 38.
Abstract translation: 光学测量装置10主要包括：用于检测入射光子的光子检测单元12，用于输出时间信号的时间信号输出单元14，以及用于存储从时间信号输出单元14输出的时间信号的存储单元16 光子检测单元12检测光子。 光子检测单元12包括具有光电阴极24a和APD24b，TZ放大器26，峰值保持电路28和A / D转换器30的HPD 24。 时间信号输出单元14包括计时器32和计数器34。 存储单元16包括比较器36和存储器38。 当光子撞击HPD24时，从比较器36输出触发信号，从A / D转换器30输出的光子数和从计数器34输出的时间数据存储在存储器38中。
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公开(公告)号：US10149365B2
公开(公告)日：2018-12-04
申请号：US15481770
申请日：2017-04-07
Applicant: Lumenetix, Inc.
Inventor： Matthew D. Weaver
Abstract: Some embodiments include a method of operating a tunable light module. The method can include driving a lamp in the tunable light module, having lamps of at least two colors, to produce a colored light according to the color mixing plan that corresponds to a correlated color temperature (CCT); measuring a light characteristic of the lamp using a light sensor; detecting a degradation level by comparing the measured light characteristic against an expected light characteristic; and adjusting a current level for driving the lamp at the CCT by referencing the color mixing plan and an alternative coefficient corresponding to the degradation level.
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公开(公告)号：US3353439A
公开(公告)日：1967-11-21
申请号：US27911263
申请日：1963-05-09
Applicant: ROSENBERRY W K
Inventor： ZOLTAN TARCZY-HORNOCH
IPC: G01J7/00
CPC classification number: G01J7/00
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公开(公告)号：US20240175759A1
公开(公告)日：2024-05-30
申请号：US17994986
申请日：2022-11-28
Applicant: Saudi Arabian Oil Company
Inventor： Alejandro M. Vera
IPC: G01J7/00
CPC classification number: G01J7/00
Abstract: Systems and methods include a method for determining wave propagation speed. Spatio-temporally-sampled data for electromagnetic (EM) wave propagation through a fluid in a conduit is acquired for different instants of time from each antenna of an array of antennas distributed at predetermined locations. A k-ω plot plotting curves having a kinematic relationship ω=ck is generated based on the spatio-temporally-sampled data and using a spectral-based algorithm, where ω is an angular frequency of a spectral component of EM disturbances, k is a wavenumber, and c is an unknown speed of the EM wave propagation. A spectral ridge on the curves is identified using the k-ω plot. Parameters for calculating a slope of the spectral ridge are determined. The slope of the spectral ridge is determined. The speed of EM wave propagation is determined assuming a relation between the speed of EM wave propagation and the slope of the spectral ridge.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20220260427A1
公开(公告)日：2022-08-18
申请号：US17175178
申请日：2021-02-12
Applicant: Qian Chen
Inventor： Qian Chen
Abstract: The method and system utilized the measurement of the “absolute” velocities or equivalent parameters of the electromagnetic devices and objects, which are defined as the velocities relative to the real origin of the electromagnetic wave, to accurately picture their impacts on the propagation and measurement of the electromagnetic wave and compensate for these impacts correspondingly. The comprehensive information of the “absolute” velocities, including both the measured values and the calculated right timings, is utilized to calibrate and control the electromagnetic device and calculate the results to improve performance and accuracy. The method and system include the absolute velocity measurement, the calibration and control of the device, and the computation of the right timings and results.
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公开(公告)号：US5619332A
公开(公告)日：1997-04-08
申请号：US440637
申请日：1995-05-15
Applicant: James E. Nicholson
Inventor： James E. Nicholson
CPC classification number: G01J9/0246 , G01J2009/0226
Abstract: An incident optical signal is captured by an array of apertures and directed to pairs of fibers, each pair having a delay fiber with a unique length and a no-delay fiber. Each pair of fibers further has a unique transmission characteristic. Time interpolation is then performed using the transmission characteristic curve for each delay fiber and the duration from the time the optical signal arrives over the no-delay fibers and the time the signal arrives over the delay fibers to determine the wavelength. In a second embodiment, each pair of delay and no-delay fibers is replaced by a fiber splitter which directs light into a no-delay fiber and a delay fiber that have been split from the input of the splitter. In a third embodiment, two fiber splitters are used in place of the pairs of fibers. Each splitter has a number of branches for receiving light and an output end for guiding light onto the photodetectors. The propagation time of the delay optical signal, as compared against the no-delay signal, and other factors such as the length of the individual fiber and the transmission characteristics, are used to determine the wavelength.
Abstract translation: 入射光信号由一组孔径捕获并被引导到一对光纤，每对光纤具有一个具有唯一长度的延迟光纤和一个无延迟光纤。 每对纤维还具有独特的传输特性。 然后使用每个延迟光纤的传输特性曲线和从光信号到达无延迟光纤时的持续时间和信号到达延迟光纤的时间来确定波长来执行时间插值。 在第二实施例中，每对延迟和无延迟光纤由光纤分离器代替，光纤分离器将光引导到已经从分离器的输入分离的无延迟光纤和延迟光纤。 在第三实施例中，使用两根光纤分离器代替成对的光纤。 每个分离器具有用于接收光的多个分支和用于将光引导到光电检测器上的输出端。 使用与无延迟信号相比的延迟光信号的传播时间以及诸如单个光纤的长度和传输特性的其他因素来确定波长。
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公开(公告)号：US10772174B2
公开(公告)日：2020-09-08
申请号：US16208242
申请日：2018-12-03
Applicant: LUMENETIX, LLC
Inventor： Matthew D. Weaver
IPC: G01J5/60 , G01J3/28 , H05B45/22 , H05B45/10 , H05B45/20 , H05B45/37 , H05B45/50 , H05B47/105 , H05B47/155 , G06F30/20 , G01J3/46 , G01J7/00 , G01J9/00
Abstract: Some embodiments include a method of operating a tunable light module. The method can include driving a lamp in the tunable light module, having lamps of at least two colors, to produce a colored light according to the color mixing plan that corresponds to a correlated color temperature (CCT); measuring a light characteristic of the lamp using a light sensor; detecting a degradation level by comparing the measured light characteristic against an expected light characteristic; and adjusting a current level for driving the lamp at the CCT by referencing the color mixing plan and an alternative coefficient corresponding to the degradation level.
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9.发明授权公开(公告)号：US10168246B2
公开(公告)日：2019-01-01
申请号：US15298385
申请日：2016-10-20
Applicant: Corning Incorporated
Inventor： Scott Robertson Bickham , Dana Craig Bookbinder , Xin Chen , Steven Craig Garner, Jr. , Ming-Jun Li , Dale Robert Powers
Abstract: Methods of selecting, from a set of like optical fibers, a subset of optical fibers that can meet both short-wavelength and target-wavelength bandwidth requirements are disclosed. The method includes obtaining short-wavelength bandwidth data from DMD measurements, and determining a peak wavelength for each optical fiber. A target-wavelength bandwidth is then calculated using the determined peak wavelengths. The calculated target bandwidth is then compared to the short-wavelength and target-wavelength bandwidth requirements to identify which of the optical fibers satisfy these requirements.
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公开(公告)号：US09885613B1
公开(公告)日：2018-02-06
申请号：US14216987
申请日：2014-03-17
Applicant: National Security Technologies, LLC
Inventor： Daniel K. Frayer
IPC: G01J7/00
CPC classification number: G01J7/00 , G01P3/36 , G01S7/4812 , G01S7/4813 , G01S7/4818 , G01S7/4917 , G01S17/58 , G01S17/89 , G02B6/322 , G02B6/34
Abstract: A probe including reflector is disclosed to measure the velocity distribution of a moving surface along many lines of sight. Laser light, directed to the surface by the probe and then reflected back from the surface, is Doppler shifted by the moving surface, collected into probe, and then directed to detection equipment through optic fibers. The received light is mixed with reference laser light and using photonic Doppler velocimetry, a continuous time record of the surface movement is obtained. An array of single-mode optical fibers provides an optic signal to one or more lens groups and a reflector, such as a parabolic reflector having a mirrored interior surface.
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