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公开(公告)号：US10082426B2
公开(公告)日：2018-09-25
申请号：US15328447
申请日：2015-07-23
Applicant: Andor Technology Limited
Inventor： Tristan Haldane , Andrew Dennis
CPC classification number: G01J3/0208 , G01J3/0235 , G01J3/0237 , G01J3/0275 , G01J3/18 , G01J3/1804
Abstract: The present invention provides a spectrometer, comprising: an inlet for the receipt of incident light; an optical path for transmitting the incident light from the inlet to an analysis plane; a focusing element located along the optical path, wherein the spectrometer has an in-focus position in which a focal point of the spectrometer and the analysis plane coincide; and a controller adapted in use, when a removable light disperser is placed along the optical path, to cause the spectrometer to be in the in-focus position by controlling the position of the focusing element relative to the analysis plane. The spectrometer is used in the analysis of light from a light source and, due to the ability of the controller to manage the focus point by way of moving the focusing element, the spectrometer is able to bring itself into an in-focus configuration without the need for a user to intervene.
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公开(公告)号：US20180266884A1
公开(公告)日：2018-09-20
申请号：US15761488
申请日：2016-11-09
Applicant: The Curators of the University of Missouri
Inventor： Zhi Xu
CPC classification number: G01J3/1804 , G01J3/28 , G01J3/2803 , G01J2003/123 , G01J2003/1239 , G01J2003/2866
Abstract: Increased sensitivity of spectrometers through reducing noise in independent voltage signals via a differential voltage analyzer utilizing a reference wavelength from a wavelength region in which the optical absorption of the sample is negligible. In an embodiment, a grating permits selection of a reference wavelength. In another embodiment, filters permit selection of a reference wavelength. In yet another embodiment, both a grating and a filter permit selection of a reference wavelength. In an aspect, the differential voltage analyzer reduces noise by minimizing a differential voltage between the independent voltage signals and the reference voltage signal by adjusting the value of a cancellation coefficient.
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公开(公告)号：US20180216998A1
公开(公告)日：2018-08-02
申请号：US15485097
申请日：2017-04-11
Applicant: KLA-Tencor Corporation
Inventor： Kenneth P. Gross
CPC classification number: G01J3/28 , G01J1/429 , G01J3/021 , G01J3/0218 , G01J3/108 , G01J3/1804 , G01J3/36 , G01N21/211
Abstract: A wideband spectrograph apparatus includes a first spectrograph assembly and one or more subsequent spectrograph assemblies. Each subsequent spectrograph assembly is optically coupled to a previous spectrograph assembly and is configured to receive a cascading beam from one or more dispersion elements of the previous spectrograph assembly. The first spectrograph assembly is configured for detecting illumination in a first wavelength range and the one or more subsequent spectrograph assemblies are configured for detecting illumination in wavelength ranges different from the first or any previous wavelength ranges to provide simultaneous sampling of different spectral portions of an input beam.
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公开(公告)号：US20180120086A1
公开(公告)日：2018-05-03
申请号：US15341104
申请日：2016-11-02
Applicant: Matthias Lenzner
Inventor： Matthias Lenzner
CPC classification number: G01N33/0004 , G01J3/00 , G01J3/1804 , G01J3/45 , G01J3/4532 , G01J3/4537 , G01J2003/1208 , G01N2033/0093
Abstract: A technique and device to determine the spectrum of electromagnetic radiation in a certain range of wavelengths comprising: splitting said radiation into more than one beam; let these beams counter-propagate in a Sagnac-type ring interferometer; and imprinting a wavelength-dependent angular tilt onto the wavefront of each beam by at least one dispersive element which preferably is a transmission grating or grism; and re-combining the multiple beams on a detector that exhibits spatial resolution and can therefore resolve the fringes formed by interference; and perform the mathematical operations to determine the spectrum of said radiation from the obtained interferogram, wherein the dispersive element is mounted on a stage providing linear and/or rotational movement.
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115.发明申请公开(公告)号：US20180087963A1
公开(公告)日：2018-03-29
申请号：US15714454
申请日：2017-09-25
Inventor： Heinrich Grueger , Jens Knobbe , Tino Puegner
CPC classification number: G01J3/1804 , G01J3/0202 , G01J3/0208 , G01J3/021 , G01J3/0229 , G01J3/0256 , G01J3/04 , G01J3/06 , G01J2003/1885
Abstract: An optical arrangement for a spectral analysis system, a method for producing an optical arrangement for a spectral analysis system and a spectral analysis system are disclosed. In an embodiment the optical arrangement includes a carrier substrate having a placement area for a frame and a base area, and a diffraction grating movably arranged in the frame, wherein the frame is arranged on the placement area in an inclined placement position with respect to the base area so that the diffraction grating, arranged in a base position, is inclined with respect to the base area.
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Patent Agency Ranking
公开(公告)号：US20170248467A1
公开(公告)日：2017-08-31
申请号：US15510316
申请日：2015-09-08
Applicant: Heptagon Micro Optics Pte. Ltd.
Inventor： Peter Roentgen , Markus Rossi
CPC classification number: G01J3/18 , G01J3/0205 , G01J3/0208 , G01J3/0256 , G01J3/0262 , G01J3/0291 , G01J3/10 , G01J3/1804 , G01J3/1895 , G01J3/2803 , G01J3/36 , G01J2003/2806 , G01J2003/2813 , G01N21/255 , G01N21/27 , G02B5/1809 , G02B5/1861 , G02B6/0026 , G02B6/005 , G02B6/0055
Abstract: An optoelectronic module includes a light guide arranged to receive light, such as ambient light or light reflected by an object. The light guide has a diffractive grating that includes multiple sections, each of which is tuned to a respective wavelength or narrow band of wavelengths. The module further includes multiple photosensitive elements, each of which is arranged to receive light diffracted by a respective one of the sections of the diffractive grating. The module can be integrated, for example, as part of a spectrometer or other apparatus for optically determining characteristics of an object.
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公开(公告)号：US09689744B2
公开(公告)日：2017-06-27
申请号：US14327704
申请日：2014-07-10
Applicant: Massachusetts Institute of Technology
Inventor： Michael P. Chrisp
CPC classification number: G01J3/2823 , G01J3/0205 , G01J3/0208 , G01J3/021 , G01J3/0256 , G01J3/1804 , G01J2003/1204 , G01J2003/1273
Abstract: An imaging spectrometer, covering the visible through infrared wavelengths, which disperses the light by a plane diffraction grating behind a wedged optical element. This design uses an achromatic doublet lens with a reflective coating on its convex back surface to produce the spectra on a flat detector. Spatial keystone distortion and spectral smile are controlled to less than one tenth of a pixel over the full wavelength range, facilitating the use of simple retrieval algorithms.
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公开(公告)号：US09323070B2
公开(公告)日：2016-04-26
申请号：US14124002
申请日：2012-06-07
Applicant: Henri Johannes Petrus Vink , Huibert Visser , Aaldert Hidde Van Amerongen
IPC: G02B27/42 , G02B5/18 , H01S3/08 , H01S3/092 , H01S3/0933 , G01J3/18 , H01S3/16 , G02B5/00 , G01J3/24
CPC classification number: G02B27/4244 , G01J3/18 , G01J3/1804 , G01J3/24 , G02B5/008 , G02B5/1828 , G02B5/1852 , G02B5/1857 , G02B5/1866 , H01S3/08009 , H01S3/092 , H01S3/0933 , H01S3/1636
Abstract: A manufacturing method for a grating is disclosed for the angular dispersion of light impinging the grating. The grating comprises tapered structures and cavities. A cavity width and/or corrugation amplitude is varied for achieving a desired grating efficiency according to calculation. A method is disclosed for conveniently creating gratings with variable cavity width and/or corrugation amplitude. The method comprises the step of anisotropically etching a groove pattern into a grating master. Optionally a replica is produced that is complementary to the grating master. By variation of an etching resist pattern, the cavity width of the grating may be varied allowing the optimization towards different efficiency goals.
Abstract translation: 公开了一种用于光入射光栅的光的角度色散的光栅的制造方法。 光栅包括锥形结构和空腔。 根据计算，改变空腔宽度和/或波纹幅度以实现期望的光栅效率。 公开了一种方便地创建具有可变腔宽度和/或波纹幅度的光栅的方法。 该方法包括将凹槽图案各向异性蚀刻成光栅母板的步骤。 可选地，产生与光栅母板互补的复制品。 通过蚀刻抗蚀剂图案的变化，可以改变光栅的腔宽度，从而实现不同效率目标的优化。
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公开(公告)号：US20150241280A1
公开(公告)日：2015-08-27
申请号：US14631376
申请日：2015-02-25
Applicant: Matthias Lenzner
Inventor： Matthias Lenzner
CPC classification number: G01J3/0208 , G01J3/1804 , G01J3/4531 , G01J2003/1208
Abstract: A technique and device to determine the spectrum of electromagnetic radiation in a certain range of wavelengths comprising: splitting said radiation into more than one beam; and imprinting a wavelength-dependent angular tilt onto the wavefront of each beam by two dispersive elements; and re-combining the multiple beams on a detector that exhibits spatial resolution and can therefore resolve the fringes formed by interference; and perform the mathematical operations to determine the spectrum of said radiation from the obtained interferogram, wherein the dispersive elements of one beam are mounted on a common stage providing linear and/or rotational movement
Abstract translation: 一种用于确定特定波长范围内的电磁辐射频谱的技术和装置，包括：将所述辐射分成多于一个光束; 并且通过两个色散元件将波长相关的角度倾斜压印在每个光束的波前上; 并且在显示空间分辨率的检测器上重新组合多个光束，并且因此可以解决由干涉形成的条纹; 并且执行数学运算以从所获得的干涉图中确定所述辐射的光谱，其中一个光束的色散元件安装在公共平台上，提供线性和/或旋转运动
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120.发明申请SPECTROSCOPIC IMAGING DEVICE ADJUSTING METHOD AND SPECTROSCOPIC IMAGING SYSTEM 审中-公开光谱成像装置调整方法和光谱成像系统公开(公告)号：US20150077748A1
公开(公告)日：2015-03-19
申请号：US14396025
申请日：2013-07-03
Applicant: Sumitomo Electric Industries, Ltd.
Inventor： Masato Tanaka , Mitsuharu Hirano , Ichiro Sogawa
CPC classification number: G01J3/0237 , G01J3/0208 , G01J3/027 , G01J3/1804 , G01J3/2803 , G01J3/2823 , G01N21/4795
Abstract: A spectroscopic imaging device adjusting method adjusts a relative arrangement relationship among a collimating lens, a diffraction grating, a condensing lens and an array type light receiving part so as to maximize the value of the following expression (1) for an output values ƒn from respective light receiving sensors Pn when monochromatic light is inputted to a spectroscopic imaging device, wherein α>1 and n is each integer equal to or larger than 1 and equal to or smaller than N. [ Expression 1 ] ∑ n = 1 N f n α ( 1 )
Abstract translation: 分光成像装置调整方法调整准直透镜，衍射光栅，聚光透镜和阵列型光接收部之间的相对配置关系，以使来自各自的输出值ƒn的以下表达式（1）的值最大化 当单色光被输入到分光成像装置时，光接收传感器Pn，其中α> 1且n分别为等于或大于1且等于或小于N的整数。[表达式1]Σn = 1 N （f）
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