公开(公告)号：US08378301B2

公开(公告)日：2013-02-19

申请号：US12605188

申请日：2009-10-23

Applicant: Alexandru Nedelcu ,  Philippe Bois ,  Eric Costard

Inventor： Alexandru Nedelcu ,  Philippe Bois ,  Eric Costard

IPC: H01L29/06 ,  H01L29/732

CPC classification number: H01L27/14625 ,  B82Y20/00 ,  G01J3/0259 ,  G01J3/1804 ,  G01J3/36 ,  G01J2003/1861 ,  H01L27/14621 ,  H01L27/14649 ,  H01L31/02327 ,  H01L31/035236 ,  H01L31/101

Abstract: The invention relates to a multispectral imaging device comprising a multiple-quantum-well structure operating on inter-sub-band transitions by absorbing radiation at a wavelength λ lying within a set of wavelengths to which said structure is sensitive, said structure comprising a matrix of individual detection pixels, characterized in that the matrix is organized in subsets (Eij) of four individual detection pixels, a first individual detection pixel (Pλ1) comprising a first diffraction grating (Rλ1) sensitive to a first subset of wavelengths, a second individual detection pixel (Pλ2) comprising a second diffraction grating (Rλ2) sensitive to a second subset of wavelengths, a third individual detection pixel (Pλ3) comprising a third diffraction grating (Rλ3) sensitive to a third subset of wavelengths and a fourth individual detection pixel (PΔλ) not comprising a wavelength-selective diffraction grating, the first, second and third subsets of wavelengths belonging to the set of wavelengths to which said structure is sensitive.

Abstract translation: 本发明涉及一种多光谱成像装置，其包括通过吸收位于所述结构敏感的一组波长内的波长λ的辐射而在子带间跃迁上操作的多量子阱结构，所述结构包括： 单个检测像素，其特征在于，矩阵被组织在四个单独检测像素的子集（Eij）中，第一个体检测像素（Pλ1）包括对第一波长子集敏感的第一衍射光栅（Rλ1），第二个体检测 包括对第二波长子集敏感的第二衍射光栅（Rλ2）的像素（Pλ2），包括对第三子波长敏感的第三衍射光栅（Rλ3）的第三个别检测像素（Pλ3）和第四单独检测像素 P＆Dgr;λ）不包括波长选择性衍射光栅，第一，第二和第三波长子集属于se 所述结构敏感的波长t。

公开(公告)号：US20120242988A1

公开(公告)日：2012-09-27

申请号：US13428247

申请日：2012-03-23

Applicant: Christopher Saxer ,  Robert H. Hart ,  Eric L. Buckland ,  Pete Huening ,  Bradley A. Bower

Inventor： Christopher Saxer ,  Robert H. Hart ,  Eric L. Buckland ,  Pete Huening ,  Bradley A. Bower

IPC: G01J3/45 ,  G01J3/28

CPC classification number: G01J3/0208 ,  A61B3/1005 ,  A61B5/0066 ,  G01J3/14 ,  G01J3/1804 ,  G01J3/28 ,  G01J2003/1208

Abstract: Wavenumber linear spectrometers are provided including an input configured to receive electromagnetic radiation from an external source; collimating optics configured to collimate the received electromagnetic radiation; a dispersive assembly including first and second diffractive gratings, wherein the first diffraction grating is configured in a first dispersive stage to receive the collimated electromagnetic radiation and wherein the dispersive assembly includes at least two dispersive stages configured to disperse the collimated input; and an imaging lens assembly configured to image the electromagnetic radiation dispersed by the at least two dispersive stages onto a linear detection array such that the variation in frequency spacing along the linear detection array is no greater than about 10%.

Abstract translation: 提供波数线性光谱仪，其包括被配置为从外部源接收电磁辐射的输入; 准直光学器件，被配置成准直所接收的电磁辐射; 包括第一和第二衍射光栅的分散组件，其中所述第一衍射光栅被配置在第一色散级中以接收所述准直电磁辐射，并且其中所述色散组件包括被配置为分散所述准直输入的至少两个色散级; 以及成像透镜组件，被配置为将由至少两个色散级分散的电磁辐射成像到线性检测阵列上，使得沿着线性检测阵列的频率间隔的变化不大于约10％。

公开(公告)号：US20120086946A1

公开(公告)日：2012-04-12

申请号：US13154368

申请日：2011-06-06

Applicant: Eric Szarmes ,  Huan Ma

Inventor： Eric Szarmes ,  Huan Ma

IPC: G01J3/45

CPC classification number: G01J3/453 ,  G01J3/1804 ,  G01J3/189

Abstract: A Sagnac interferometer can include a beamsplitter arranged to receive an input beam of light of a design wavelength, to split the input beam of light into first and second beams that counter propagate around an optical path, and to recombine the first and second beams into an output beam of light. The optical path can include at least one diffraction grating that is arranged to satisfy an effective Littrow geometry.

Abstract translation: 萨尼亚克干涉仪可以包括分束器，其布置成接收设计波长的输入光束，以将输入光束分成第一和第二光束，所述第一和第二光束在光路周围传播，并且将第一和第二光束复合到 输出光束。 光路可以包括至少一个被设置为满足有效的Littrow几何形状的衍射光栅。

公开(公告)号：US20120033213A1

公开(公告)日：2012-02-09

申请号：US12853222

申请日：2010-08-09

Applicant: Wei YANG ,  Ming Chai ,  Charlie Zhang ,  Patrick Yang

Inventor： Wei YANG ,  Ming Chai ,  Charlie Zhang ,  Patrick Yang

IPC: G01J3/28

CPC classification number: G01J3/44 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0235 ,  G01J3/0291 ,  G01J3/1804

Abstract: A spectrograph having multiple excitation wavelength ranges is disclosed. The spectrograph can include a wavelength switching mechanism to switch between different wavelength ranges in accordance with the wavelength of an incoming light signal. The wavelength switching mechanism can include multiple optical assemblies (or elements) corresponding to the different wavelength ranges for processing the incoming light signal. The mechanism can also include a switching component for switching the optical assemblies to align the appropriate assembly with the incoming light signal. Each optical assembly can include one or more transmission gratings to disperse the incoming light signal into multiple wavelengths within a particular wavelength range and a reflecting mirror proximate to the grating(s) to reflect the wavelengths of light back through the grating(s) to photodetectors for measuring to wavelengths to generate a light spectrum. The spectrograph can be used in Raman spectroscopy.

Abstract translation: 公开了具有多个激发波长范围的光谱仪。 光谱仪可以包括根据入射光信号的波长在不同波长范围之间切换的波长切换机构。 波长切换机构可以包括对应于用于处理入射光信号的不同波长范围的多个光学组件（或元件）。 该机构还可以包括用于切换光学组件以将适当的组件与入射光信号对准的切换部件。 每个光学组件可以包括一个或多个透射光栅以将入射光信号分散在特定波长范围内的多个波长和靠近光栅的反射镜，以将光的波长反射回光栅到光电检测器 用于测量波长以产生光谱。 该光谱仪可用于拉曼光谱。

公开(公告)号：US20120025099A1

公开(公告)日：2012-02-02

申请号：US13191483

申请日：2011-07-27

Applicant: Dvir YELIN ,  Avraham Abramov

Inventor： Dvir YELIN ,  Avraham Abramov

IPC: G01N21/64 ,  G01J3/28

CPC classification number: G01J3/2823 ,  G01J3/10 ,  G01J3/1804 ,  G01N21/474 ,  G01N21/6456 ,  G01N2021/4742 ,  G01N2021/6421 ,  G01N2021/6471 ,  G01N2021/6484 ,  G02B21/0076

Abstract: A method of forming an image of a target that comprises illuminating a target with light, maneuvering an optical unit having at least one diffractive element in front of the target through a plurality of positions, capturing, during the maneuvering, a plurality of spectrally encoded frames each from a portion of the light that is scattered from a different of a plurality of overlapping segments along a track traversing an image plane of the target, and combining the plurality of spectrally encoded frames to form a composite multispectral image of at least a portion of said target.

Abstract translation: 一种形成目标的图像的方法，包括用光照射目标，通过多个位置操纵在目标前方具有至少一个衍射元件的光学单元，在操纵期间捕获多个频谱编码的帧 每个来自沿着穿过所述目标的图像平面的轨道的多个重叠片段中的不同的多个重叠片段中散射的光的一部分，以及组合所述多个频谱编码的帧以形成至少一部分的复合多光谱图像 说目标

公开(公告)号：US20110279818A1

公开(公告)日：2011-11-17

申请号：US13106373

申请日：2011-05-12

Applicant: Jun AMAKO ,  Kohei YAMADA

Inventor： Jun AMAKO ,  Kohei YAMADA

IPC: G01J3/28 ,  G03F7/20

CPC classification number: G01J3/1804 ,  G01J3/44 ,  G02B5/1857 ,  G02B5/1866 ,  G02B27/4261

Abstract: A spectrometry apparatus includes a transmissive diffraction grating that transmits incident light. The transmissive diffraction grating has inclined surfaces made of a first dielectric material. The inclined surfaces are arranged so that they are inclined relative to a reference line. When the angle of incidence of light incident on the transmissive diffraction grating is measured with respect to the reference line and defined as an angle α, and the angle of diffraction of diffracted light is measured with respect to the reference line and defined as an angle β, the angle of incidence α is smaller than a Bragg angle θ defined with respect to the inclined surfaces, and the angle of diffraction β is greater than the Bragg angle θ.

Abstract translation: 分光装置包括透射入射光的透射衍射光栅。 透射衍射光栅具有由第一介电材料制成的倾斜表面。 倾斜表面被布置成使得它们相对于参考线倾斜。 当入射到透射衍射光栅上的光的入射角相对于参考线被测量并被定义为角度α时，衍射光的衍射角相对于参考线被测量并被定义为角度＆bgr ;入射角α小于布拉格角; 相对于倾斜表面限定，并且衍射角＆bgr; 大于布拉格角度。

公开(公告)号：US20100182494A1

公开(公告)日：2010-07-22

申请号：US12604958

申请日：2009-10-23

Applicant: Kyong-Tae PARK ,  Shitao DENG

Inventor： Kyong-Tae PARK ,  Shitao DENG

IPC: H04N5/232 ,  G02B27/40 ,  G01D18/00

CPC classification number: H04N5/23212 ,  G01J3/02 ,  G01J3/0237 ,  G01J3/0278 ,  G01J3/0291 ,  G01J3/1804 ,  G02B7/38 ,  G02B27/0068

Abstract: A wavelength detecting apparatus capable of detecting the main wavelength of the light coming into an image capture apparatus and a focus detecting apparatus using the same are disclosed. The wavelength detecting apparatus may include a spectral unit which separates the incoming light according to the respective wavelengths, and may focus the separated light onto a sensor. The main wavelength can be determined based on the wavelength distribution sensed by the sensor. The determined wavelength can be used to further determine amount of adjustment to be made to the defocus amount to compensate for the chromatic aberration associated with the wavelength of the light illuminating the source.

Abstract translation: 公开了一种能够检测进入图像捕获装置的光的主波长的波长检测装置和使用该波长检测装置的聚焦检测装置。 波长检测装置可以包括根据各个波长分离入射光的光谱单元，并且可以将分离的光聚焦到传感器上。 主波长可以根据传感器感测到的波长分布来确定。 可以使用所确定的波长来进一步确定对散焦量进行的调整量，以补偿与照亮源的光的波长相关联的色像差。

公开(公告)号：US20100014082A1

公开(公告)日：2010-01-21

申请号：US12505387

申请日：2009-07-17

Applicant: Eberhard Loecklin

Inventor： Eberhard Loecklin

IPC: G01J3/28

CPC classification number: G01J3/1804 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/14 ,  G01J2003/1208

Abstract: The invention relates to angle-limiting optical reflectors and optical dispersive devices such as optical spectrum analyzers using the same. The reflector has two reflective surfaces arranged in a two-dimensional corner reflector configuration for reflecting incident light back with a shift, and includes two prisms having a gap therebetween that is tilted to reflect unwanted light and transmit wanted light. A two-pass optical spectrum analyzer utilizes the reflector to block unwanted multi-pass modes that may otherwise exist and degrade the wavelength selectivity of the device.

Abstract translation: 本发明涉及角度限制光学反射器和光学色散装置，例如使用其的光谱分析仪。 反射器具有以二维角反射器构造布置的两个反射表面，用于以偏移方式反射入射光，并且包括两个在其间具有间隙的棱镜，其倾斜以反射不需要的光并传输所需的光。 双通道光谱分析仪利用反射器来阻止可能存在的不期望的多通道模式并降低器件的波长选择性。

公开(公告)号：US07436512B2

公开(公告)日：2008-10-14

申请号：US11297117

申请日：2005-12-08

Applicant: Katsumi Ida ,  Takeshi Ikeda

Inventor： Katsumi Ida ,  Takeshi Ikeda

IPC: G01J3/18 ,  G01J3/28

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0291 ,  G01J3/0294 ,  G01J3/1804

Abstract: A spectroscope is described comprising an incident slit, a collimator lens type optical system that makes the light rays having passed through the incident slit parallel light rays, a reflection type diffraction grating that receives the parallel light rays and, according to the wavelength, outputs these light rays at different angles, a condenser lens type optical system that condenses the output light from the diffraction grating, and a two-dimensional detector having a two-dimensional light-receiving surface that detects the light rays that have been condensed by the condenser lens type optical system.

Abstract translation: 描述了一种分光器，其包括入射狭缝，使穿过入射狭缝的光线平行光线的准直透镜型光学系统，接收平行光线的反射型衍射光栅，并根据波长输出这些 以不同角度的光线，聚焦衍射光栅的输出光的聚光透镜型光学系统和具有二维光接收表面的二维检测器，二维光接收表面检测由聚光透镜冷凝的光线 型光学系统。

公开(公告)号：US07420673B2

公开(公告)日：2008-09-02

申请号：US11925102

申请日：2007-10-26

Applicant: Thomas W. Hagler

Inventor： Thomas W. Hagler

IPC: G01J3/04

CPC classification number: G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/0229 ,  G01J3/027 ,  G01J3/0289 ,  G01J3/06 ,  G01J3/1804 ,  G01J3/2846 ,  G01J3/42 ,  G01J2001/4242 ,  G01J2003/1217

Abstract: A method of generating a design pattern for a spatial radiation modulator to encode two or more selected spectral components in one or more spectral ranges for the chemometric analysis of a group of analytes. The method includes obtaining a corresponding spectrum for each of the analytes, defining a set of initial spectral windows, constructing a chemometric matrix to relate concentrations of the analytes to intensities of the spectral components, deriving optimized spectral windows, and translating the center wavelength and the bandwidth of each of the optimized spectral windows into a corresponding optimized annular region on the modulator.