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公开(公告)号：CN103364090B
公开(公告)日：2015-10-21
申请号：CN201310308379.8
申请日：2013-07-22
Applicant: 北京工业大学
IPC: G01J7/00
Abstract: 测量超短脉冲激光在介质中传播相速度的装置，包括超短脉冲激光光源、两块分束器、六块反射镜、待测透明介质、精密光学延迟平台系统、两个精密探测器和计算机。本发明测量方法利用分束器将激光光源输出的超短脉冲激光分成两路光，并利用分束器将泵浦光、探测光两路光重新合成后得到合成输出光，通过精密光学延迟平台系统和精密探测器的结合使用，可以精确快捷地测量出短脉冲激光在待测透明介质中传播的相速度。本发明的测量方法简单，装置配置合理，由于外界因素对测量曲线与背景曲线的影响一致，在对比分析中通过简单运算方法就可以消除外界影响，使本发明具有较高的测量精度，并可适用于更广泛的工作环境。
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公开(公告)号：CN103162844A
公开(公告)日：2013-06-19
申请号：CN201310042668.8
申请日：2013-02-04
Applicant: 江汉大学
Inventor： 雷海东
IPC: G01J7/00
Abstract: 本发明涉及空间物理学领域，尤其涉及与狭义相对论有关的一种光速各向异性测量方法。它涉及空间冷原子钟系统和第一、第二微波时频传输系统，所述空间冷原子钟系统位于地球外空间的可移动装置上，所述第一、第二微波时频传输系统分别位于不同地理位置的地球表面。本发明通过空间冷原子钟系统分别在地球外空间0点、0’点处与第一、第二微波时频传输系统进行时间信号传递测量，并根据|Tc-Ta|＝|Δs1+Δm1+M1cosθ1|、|Td-Tb|=|Δs2+Δm2+M2cosθ2|进行验证。本发明能在更高的精度上验证光在不同转播方向速度是否一样。
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公开(公告)号：CN1858565A
公开(公告)日：2006-11-08
申请号：CN200610027438.4
申请日：2006-06-08
Applicant: 复旦大学
Abstract: 本发明属于激光技术领域，具体为一种基于离轴和频产生实现聚焦高斯光束相速度分布测量方法及其装置。该方法利用两束偏振方向相互垂直且束腰位置、束腰宽度相等的离轴高斯光束，以二类相位匹配入射非线性晶体产生和频光，并通过测量最佳相位失配量Δkopt，间接取得聚焦高斯光束的相速度分布的数据，从而实现聚焦高斯光束的相速度分布的测量。该装置由一个激光光源，两块分束镜，两块反射镜，两块凸透镜，两块偏振片，一块非线性晶体、一块滤光镜及一个探测器经光路连接组成。本方法和装置填补了传统测量方法无法实现的聚焦高斯光束中非均匀的相速度分布的测量的空白。
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35.发明专利
公开(公告)号：JP3631025B2
公开(公告)日：2005-03-23
申请号：JP36685998
申请日：1998-12-24
Applicant: アンリツ株式会社
CPC classification number: G01M11/331 , G01J7/00 , G01M11/332 , G01M11/335 , G01M11/336
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Patent Agency Ranking
公开(公告)号：JPH0457970B2
公开(公告)日：1992-09-16
申请号：JP23549483
申请日：1983-12-14
Applicant: FUJITSU LTD
Inventor： SOEDA KAZUHIKO
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公开(公告)号：JPH0615991B2
公开(公告)日：1994-03-02
申请号：JP31083986
申请日：1986-12-26
Applicant: INA HIROSHI , KOBAYASHI JUNICHI , ENDO HIDEAKI
Inventor： INA HIROSHI , KOBAYASHI JUNICHI , ENDO HIDEAKI
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公开(公告)号：JPH03152591A
公开(公告)日：1991-06-28
申请号：JP29213689
申请日：1989-11-09
Applicant: MAEDA AKIYOSHI
Inventor： MAEDA AKIYOSHI
Abstract: PURPOSE:To demonstrate the fact that light velocity is not always kept constant and changes based on wavelength by attaching different wavelength on two beams of light interfering with each other by interposing a coloring filter to the optical path of an interferometer, and detecting light velocity difference classified by every wavelength based on the position change of an interference fringe. CONSTITUTION:A device is the one in which the interferometers 5, 6 with superior performance are applied as the light velocity comparison experimental device classified by every wavelength, and the difference wavelength are applied to two beams A, B of light interfering with each other by interposing the coloring filters A', B' to the optical paths of the interferometers, and the difference H of optical path length generated by interposing the coloring filters A', B' is corrected by the adjustment of a refractive index or that of the thickness of the filter. In other words, the device is composed so that the two beams A, B of light with different wavelength can be interfered with each other under the condition of the same optical path length. Then, the light velocity difference can be detected at every wavelength based on the position change of the interference fringe. Thereby, it is possible to perform the comparison experiment of light velocity at every wavelength, and to recognize the fact that the light velocity is not always kept constant.
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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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