公开(公告)号：US20220412888A1

公开(公告)日：2022-12-29

申请号：US17756283

申请日：2020-11-20

Applicant: PHOTON ETC. INC.

Inventor： David RIOUX ,  Daniel OYAMA

IPC: G01N21/64

Abstract: There are provided infrared imaging systems and methods for imaging a sample with fluorescent markers. The system includes a light source configured to illuminate a sample-contacting surface. The light source includes first and second illumination modules, each configured to project a corresponding first and second infrared illumination beam towards a sample holder, the infrared illumination beams interacting at an imaging plane to define an illumination area having a rectangular and homogeneous power profile. The system also includes a control unit operatively connected to a motor assembly and to an optomechanical mechanism. The control unit is configured to superimpose the sample plane and the imaging plane at any of the multiple locations within the enclosure. The system includes a detector configured to receive light emitted by the fluorescent markers of the sample upon illumination of the same in the imaging plane when the sample plane is superimposed with the imaging plane.

公开(公告)号：US20100328661A1

公开(公告)日：2010-12-30

申请号：US12918376

申请日：2009-02-20

Applicant: Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Simon Lessard

Inventor： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Simon Lessard

IPC: G01J3/28

CPC classification number: G01N21/718 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0294 ,  G01J3/18 ,  G01J3/443

Abstract: A laser induced breakdown spectroscopy (LIBS) system uses discrete optical filters for isolated predetermined spectral components from plasma light created by ablation of a sample. Independent detection elements may be used for detecting the magnitude for each spectral component. A first spectral component may include a characteristic wavelength of the sample, while a second spectral component may be a portion of a background continuum. The filters may include volume Bragg gratings and the detectors may be photodiodes. A detector that detects plasma light remaining after the isolation of the predetermined spectral components may be used together with a signal acquisition controller to precisely control the initiation and termination of signal acquisition from each of the detection elements. The system may also have optics including a collimating lens through which passes both the initial plasma light and the isolated spectral components.

Abstract translation: 激光诱导击穿光谱（LIBS）系统使用离散光学滤波器用于通过样品消融产生的等离子体光的隔离的预定光谱分量。 独立检测元件可用于检测每个光谱分量的幅度。 第一光谱分量可以包括样本的特征波长，而第二光谱分量可以是背景连续谱的一部分。 滤波器可以包括体积布拉格光栅，并且检测器可以是光电二极管。 检测器在检测到隔离预定频谱分量之后剩余的等离子体光可以与信号采集控制器一起使用，以精确地控制从每个检测元件开始和终止信号采集。 该系统还可以具有包括准直透镜的光学器件，通过该准直透镜通过初始等离子体光和隔离的光谱分量。

公开(公告)号：US20100110515A1

公开(公告)日：2010-05-06

申请号：US12529857

申请日：2008-03-07

Applicant: Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Jean-François Moquin ,  Marc Verhaegen

Inventor： Sébastien Blais-Ouellette ,  Daniel Gagnon ,  Jean-François Moquin ,  Marc Verhaegen

IPC: G02B5/32

CPC classification number: G02B5/32 ,  G02B5/203 ,  G03H1/0005 ,  G03H1/0248 ,  G03H2001/261

Abstract: A notch filter system, where multiple filter passes of a light signal may be effected for removing a target spectral component from the light signal, is provided. Advantageously, the notch filter system may be tunable. A cascade notch filter system is provided which includes multiple notch filters arranged in a cascade, each of the filters having spectral filtering characteristics and being disposed in the path of the light signal at an appropriate filter angle so that the target spectral component is filtered out of the light signal as the light signal passes therethrough. A multipass notch filter system is provided which includes a notch filter having spectral filtering characteristics, and an optical assembly for directing the light signal for multiple filter passes through the filter at an appropriate angle, so that the target spectral component is filtered out of the light signal as the light signal passes through the filter.

Abstract translation: 提供了一种陷波滤波器系统，其中可以实现光信号的多个滤波器通过以从光信号中去除目标光谱分量。 有利地，陷波滤波器系统可以是可调谐的。 提供了一种级联陷波滤波器系统，其包括以级联方式布置的多个陷波滤波器，每个滤波器具有频谱滤波特性，并以适当的滤波器角度设置在光信号的路径中，使得目标频谱分量被滤出 作为光信号的光信号通过。 提供了一种多通道陷波滤波器系统，其包括具有频谱滤波特性的陷波滤波器，以及用于引导多个滤波器的光信号以适当角度通过滤波器的光学组件，使得目标谱分量被滤出光 信号通过滤光片。

公开(公告)号：US08537260B2

公开(公告)日：2013-09-17

申请号：US12611981

申请日：2009-11-04

Applicant: Olivier Daigle

Inventor： Olivier Daigle

IPC: H04N5/335 ,  H04N5/235

CPC classification number: H04N5/3765 ,  H01L27/14609 ,  H04N5/3577 ,  H04N5/378

Abstract: An apparatus and method for low noise imaging uses an image sensor, such as an EMCCD in which charges are accumulated and shifted out using analog clock signals. A sensor controller generates the clock signals from digital waveforms stored in memory units that provide outputs to digital-to-analog converters that, in turn, convert the signals to analog form. The analog signals are then amplified and applied to the sensor. The specific waveforms are determined by a digital signal processor and stored in the memories, and the desired waveforms are read out the memories using addressing provided by a field-programmable gate array. The clock signals may be sinusoids, or may be more complex waveform shapes, and the waveform shapes may be varied by a user. The clock signal rise times may be made gradual so as to minimize noise contributions.

Abstract translation: 用于低噪声成像的装置和方法使用诸如EMCCD的图像传感器，其中使用模拟时钟信号累积并移出电荷。 传感器控制器从存储在存储器单元中的数字波形产生时钟信号，该输出向数模转换器提供输出，而转换器又将信号转换为模拟形式。 然后将模拟信号放大并应用于传感器。 特定波形由数字信号处理器确定并存储在存储器中，并且使用由现场可编程门阵列提供的寻址来读出所需的波形。 时钟信号可以是正弦波，或者可以是更复杂的波形形状，并且波形可以由用户改变。 时钟信号上升时间可以是渐进的，以便使噪声贡献最小化。

公开(公告)号：US08237844B2

公开(公告)日：2012-08-07

申请号：US11912663

申请日：2006-04-25

Applicant: Sebastien Blais-Ouellette ,  Ed Wishnow

Inventor： Sebastien Blais-Ouellette ,  Ed Wishnow

IPC: H04N5/225 ,  H04N5/335

CPC classification number: G01J3/32 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1213 ,  G01N21/31 ,  G01N2021/1793 ,  G01N2021/3137 ,  G01N2021/3177

Abstract: The present invention concerns a method and camera for obtaining a high-contrast image of a predetermined target present in an area under observation. The method involves obtaining an in-band image of the observation area including the target using a filter whose bands are aligned with selected characteristic wavelength bands of the target and an out-of-band image of the observation area excluding the target using the filter with its bands non-aligned with the selected characteristic wavelength bands of the target. Processing of the in-band and out-of-band images results in a high-contrast image highlighting the presence of the target in the observation area and thereby allowing its detection and monitoring.

Abstract translation: 本发明涉及一种用于获得存在于观察区域内的预定目标的高对比度图像的方法和照相机。 该方法包括使用滤波器获得包括目标的观测区域的带内图像，该滤波器的频带与目标的选定特征波段对准，并且使用滤波器与除了目标的观测区域的带外图像 其带与目标的所选特征波段不对准。 带内和带外图像的处理导致高对比度图像突出显示观察区域中的目标的存在，从而允许其检测和监视。

公开(公告)号：US20080252731A1

公开(公告)日：2008-10-16

申请号：US11912663

申请日：2006-04-25

Applicant: Sebastien Blais-Ouellette ,  Ed Wishnow

Inventor： Sebastien Blais-Ouellette ,  Ed Wishnow

IPC: H04N5/30

CPC classification number: G01J3/32 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/2823 ,  G01J3/36 ,  G01J2003/1213 ,  G01N21/31 ,  G01N2021/1793 ,  G01N2021/3137 ,  G01N2021/3177

Abstract: The present invention concerns a method and camera for obtaining a high-contrast image of a predetermined target present in an area under observation. The method involves obtaining an in-band image of the observation area including the target using a filter whose bands are aligned with selected characteristic wavelength bands of the target and an out-of-band image of the observation area excluding the target using the filter with its bands non-aligned with the selected characteristic wavelength bands of the target. Processing of the in-band and out-of-band images results in a high-contrast image highlighting the presence of the target in the observation area and thereby allowing its detection and monitoring.

Abstract translation: 本发明涉及一种用于获得存在于观察区域内的预定目标的高对比度图像的方法和照相机。 该方法包括使用滤波器获得包括目标的观测区域的带内图像，该滤波器的频带与目标的选定特征波段对准，并且使用滤波器与除了目标的观测区域的带外图像 其带与目标的所选特征波段不对准。 带内和带外图像的处理导致高对比度图像突出显示观察区域中的目标的存在，从而允许其检测和监视。

公开(公告)号：US20130259071A1

公开(公告)日：2013-10-03

申请号：US13820315

申请日：2011-08-29

Applicant: Sébastien Blais-Ouellette

Inventor： Sébastien Blais-Ouellette

IPC: H01S3/1055

CPC classification number: H01S3/1055 ,  G02F1/365 ,  G02F2001/3528 ,  G02F2201/17 ,  H01S3/06704 ,  H01S3/06741 ,  H01S3/06791 ,  H01S3/08009 ,  H01S3/108

Abstract: A broadband optical accumulator and tunable narrowband optical source use a microstructured optical fiber into which optical energy is coupled at a first wavelength. The input optical energy is spectrally broadened as it propagates through the fiber, and the output signal is directed to a wavelength separator such as a Bragg grating. A narrowband portion of the output signal is redirected by the grating, while the remainder is reinjected into the fiber. Adjustment of the output wavelength band may be accomplished by changing the incidence angle of the output signal by pivoting the grating. The grating may be located in a housing and surrounded by index matching fluid, and the narrowband portion of the output signal isolated by the grating may be redirected to an output location by a reflector that moves with pivoting of the grating.

Abstract translation: 宽带光学累加器和可调谐窄带光源使用其中光能以第一波长耦合的微结构光纤。 输入光能在其通过光纤传播时被光谱扩展，并且输出信号被引导到诸如布拉格光栅之类的波长分离器。 输出信号的窄带部分由光栅重定向，而剩余部分被重新注入到光纤中。 输出波长带的调整可以通过使光栅转动来改变输出信号的入射角来实现。 光栅可以位于壳体中并由折射率匹配流体包围，并且由光栅隔离的输出信号的窄带部分可以通过随着光栅的转动而移动的反射器被重定向到输出位置。

公开(公告)号：US20100283882A1

公开(公告)日：2010-11-11

申请号：US12611981

申请日：2009-11-04

Applicant: Olivier Daigle

Inventor： Olivier Daigle

IPC: H04N5/335

CPC classification number: H04N5/3765 ,  H01L27/14609 ,  H04N5/3577 ,  H04N5/378

Abstract: An apparatus and method for low noise imaging uses an image sensor, such as an EMCCD in which charges are accumulated and shifted out using analog clock signals. A sensor controller generates the clock signals from digital waveforms stored in memory units that provide outputs to digital-to-analog converters that, in turn, convert the signals to analog form. The analog signals are then amplified and applied to the sensor. The specific waveforms are determined by a digital signal processor and stored in the memories, and the desired waveforms are read out the memories using addressing provided by a field-programmable gate array. The clock signals may be sinusoids, or may be more complex waveform shapes, and the waveform shapes may be varied by a user. The clock signal rise times may be made gradual so as to minimize noise contributions.

Abstract translation: 用于低噪声成像的装置和方法使用诸如EMCCD的图像传感器，其中使用模拟时钟信号累积并移出电荷。 传感器控制器从存储在存储器单元中的数字波形产生时钟信号，该输出向数模转换器提供输出，而转换器又将信号转换为模拟形式。 然后将模拟信号放大并应用于传感器。 特定波形由数字信号处理器确定并存储在存储器中，并且使用由现场可编程门阵列提供的寻址来读出所需的波形。 时钟信号可以是正弦波，或者可以是更复杂的波形形状，并且波形可以由用户改变。 时钟信号上升时间可以是渐进的，以便使噪声贡献最小化。

公开(公告)号：US20250155699A1

公开(公告)日：2025-05-15

申请号：US18837115

申请日：2023-02-08

Applicant: PHOTON ETC. INC.

Inventor： Charles-Anthony FORTIN ,  Nicolas DAVID

IPC: G02B26/00 ,  G02B5/18 ,  G02B27/42

Abstract: A wavelength tunable light source based on a Volume Bragg Grating (VBG) receives a broadband light beam and outputs a diffracted light beam. The spectral profile of the diffracted light beam includes a selected waveband of the broadband light beam accompanied by out-of-band features spatially dispersed by the VBG. The light source further includes a wavelength tuning mechanism, such as a Theta-2Theta rotation system, comprising a VBG rotation stage operable to rotate the VBG to change the incidence angle by a VBG rotation angle, and a displacement device configured to change a relative alignment between the light input and the light output paths by twice the VBG rotation angle. The light output path has an opening sized to allow at least a portion of the selected waveband through while substantially blocking the out-of-band features.

公开(公告)号：US12163884B2

公开(公告)日：2024-12-10

申请号：US17756283

申请日：2020-11-20

Applicant: PHOTON ETC. INC.

Inventor： David Rioux ,  Daniel Oyama

IPC: G01N21/64

Abstract: There are provided infrared imaging systems and methods for imaging a sample with fluorescent markers. The system includes a light source configured to illuminate a sample-contacting surface. The light source includes first and second illumination modules, each configured to project a corresponding first and second infrared illumination beam towards a sample holder, the infrared illumination beams interacting at an imaging plane to define an illumination area having a rectangular and homogeneous power profile. The system also includes a control unit operatively connected to a motor assembly and to an optomechanical mechanism. The control unit is configured to superimpose the sample plane and the imaging plane at any of the multiple locations within the enclosure. The system includes a detector configured to receive light emitted by the fluorescent markers of the sample upon illumination of the same in the imaging plane when the sample plane is superimposed with the imaging plane.