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    • 1. 发明申请
    • Pseudo-CW Quantum Cascade Laser System
    • 伪CW量子级联激光系统
    • US20110216794A1
    • 2011-09-08
    • US13032143
    • 2011-02-22
    • Scott HowardAnthony Hoffman
    • Scott HowardAnthony Hoffman
    • H01S3/23H01S3/10
    • H01S5/06216B82Y20/00H01S5/02248H01S5/0428H01S5/3401H01S5/4012
    • A laser system is proposed that is configured to provide a pseudo-CW signal at room temperature. The system utilizes an array of pulsed lasers that are controlled (in terms of turning “on” and “off”) to provide, in combination, a quasi-CW output signal. The activation of each individual laser is controlled to turn “on” and “off” in a predefined sequence, where at least one laser is “on” at any given point in time. Thus, by combining the outputs from the plurality of pulsed lasers onto a single output signal path, the resultant output signal from the system will be a pseudo-CW signal (the amount of “ripple” present in the signal controlled by factors such as the number of individual lasers in the plurality of lasers, the duty cycle of each individual laser, etc.). The duty cycle of the individual lasers can be controlled to provide a high power output signal (higher duty cycle), or provide a high wall-plug efficiency of the system (lower duty cycle).
    • 提出了一种配置为在室温下提供伪CW信号的激光系统。 该系统利用被控制的脉冲激光器阵列(在“打开”和“关闭”方面),以组合提供准CW输出信号。 控制每个单独的激光器的激活以预定的顺序“打开”和“关闭”,其中至少一个激光器在任何给定的时间点“开”。 因此,通过将来自多个脉冲激光器的输出组合到单个输出信号路径上,来自系统的合成输出信号将是伪CW信号(由信号控制的信号中存在的“纹波”量,例如 多个激光器中的单个激光器的数量,每个激光器的占空比等)。 可以控制单个激光器的占空比以提供高功率输出信号(更高的占空比),或提供系统的高壁挂效率(较低占空比)。
    • 2. 发明申请
    • High-frequency power transformer
    • 高频电力变压器
    • US20060152318A1
    • 2006-07-13
    • US11330296
    • 2006-01-11
    • Alexander IsurinScott HowardAlexander Cook
    • Alexander IsurinScott HowardAlexander Cook
    • H01F27/06
    • H02M7/003H01F27/04H01F27/06H01F27/2852H01F27/40H01F30/06H01F30/12H01F38/00H01F2027/065H02M3/337
    • A high-frequency transformer. The transformer comprises a high-voltage winding. A first bus bar is positioned proximate the high voltage winding and extends to a first portion of a plurality of power switching devices. The first bus bar is electrically coupled to the first portion of the power switching devices. A second bus bar is positioned proximate the high voltage winding and extends to a second portion of the power switching devices. The second bus bar is electrically coupled to both the high voltage winding and the second portion of the power switching devices. A third bus bar extends between the first and second bus bars and is electrically coupled to the first bus bar, second bus bar, and the high voltage winding. The second and third bus bars form a low voltage winding that electrically cooperates with the high voltage winding to form the high-frequency transformer.
    • 高频变压器。 变压器包括高压绕组。 第一汇流条位于高压绕组附近并延伸到多个功率开关装置的第一部分。 第一母线电耦合到功率开关器件的第一部分。 第二母线位于高压绕组附近并延伸到功率开关器件的第二部分。 第二母线电连接到高压绕组和功率开关器件的第二部分。 第三母线在第一和第二母线之间延伸并且电耦合到第一母线,第二母线和高压绕组。 第二和第三母线形成与高压绕组电气配合以形成高频变压器的低压绕组。
    • 5. 发明申请
    • FLUORESCENCE IMAGING APPARATUS AND METHOD
    • 荧光成像装置及方法
    • US20130126756A1
    • 2013-05-23
    • US13574363
    • 2011-01-24
    • Chunhui (Chris) XuScott HowardAdam StraubGuanghao Zhu
    • Chunhui (Chris) XuScott HowardAdam StraubGuanghao Zhu
    • G01N21/64G02F1/01
    • G01N21/64G01N21/6408G01N21/6456G02F1/01
    • A fluorescence emission imaging method and apparatus allows for high frame rate imaging in scattering medium as well as for fluorescence, phosphorescence, or luminescence lifetime imaging, time-resolved fluorescence, phosphorescence, or luminescence lifetime spectroscopy and imaging. A method involves providing an illumination beam, propagating the illumination beam to a light modulator array, modulating the illumination beam so as to generate an array of point sources, wherein each of the point sources is modulated at a frequency, imaging the modulated illumination beam on the object, and detecting a fluorescent, phosphorescent, or luminescent emission from the object. An optical imaging component in the form of a modulation mask has multiple bands. Each band has alternating transmissive and/or reflective and/or absorptive regions that are patterned such that light scanned over a band will be modulated at a band-related frequency.
    • 荧光发射成像方法和装置允许散射介质中的高帧率成像以及荧光,磷光或发光寿命成像,时间分辨荧光,磷光或发光寿命光谱和成像。 一种方法包括提供照明光束,将照明光束传播到光调制器阵列,调制照明光束以产生点光源阵列,其中每个点光源以一个频率被调制,对被调制的照明光束进行成像 并且检测来自物体的荧光,磷光或发光发射。 调制掩模形式的光学成像部件具有多个带。 每个带具有交替的透射和/或反射和/或吸收区域,其被图案化,使得在频带上扫描的光将以带相关频率被调制。