公开(公告)号：US06597452B1

公开(公告)日：2003-07-22

申请号：US09716076

申请日：2000-11-17

Applicant: Wu Jiang ,  Warren Stephen Slutter ,  Kevin Lange

Inventor： Wu Jiang ,  Warren Stephen Slutter ,  Kevin Lange

IPC: G01J318

CPC classification number: G01J3/02 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0243 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/22

Abstract: A Littrow-type spectrometer or monochromator using a folded light path to provide a compact optical instrument is disclosed. Light enters the instrument through an inlet aperture on a planar mirror. The aperture is located at the focus of a parabolic collimator mirror. Collimated light reflected by the parabolic mirror is reflected back to the planar mirror, which is positioned at an angle to the collimated light. The light reflected from the planar mirror is directed at a planar grating that produces diffracted light having all the wavelengths input into the system, including light of a selected wavelength, back towards the planar mirror. Light having the selected wavelength is thus caused to fall on the parabolic mirror. The parabolic mirror then focuses the selected wavelength of light onto a light exit aperture that is juxtaposed to the inlet light aperture. The planar grating can be rotatably mounted to scan the input light spectrum.

Abstract translation: 公开了使用折叠光路提供紧凑型光学仪器的Littrow型光谱仪或单色仪。 光通过平面镜上的入口孔进入仪器。 孔径位于抛物线准直镜的焦点。 由抛物面反射镜反射的准直光被反射回到与准直光成角度定位的平面镜。 从平面镜反射的光被引导到平面光栅，其产生具有输入到系统中的所有波长的衍射光，包括所选波长的光，返回到平面镜。 因此，具有所选择的波长的光落在抛物面镜上。 然后抛物面镜将所选择的波长的光聚焦到与入口光孔并列的光出口孔。 平面光栅可以可旋转地安装以扫描输入光谱。

公开(公告)号：US06573990B1

公开(公告)日：2003-06-03

申请号：US09564298

申请日：2000-05-03

Applicant: Duwayne R. Anderson

Inventor： Duwayne R. Anderson

IPC: G01J328

CPC classification number: G01J3/1804 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0243 ,  G01J3/0294 ,  G01J2003/1828 ,  G01J2003/2866 ,  G02B6/3534 ,  G02B6/3568 ,  G02B6/3586

Abstract: An optical system having a first order spectral range that is usable in an optical spectrum analyzer receives an broadband optical test signal and a optical calibration signal and couples the optical signals via two optically isolated paths to separate optical detectors. First and second pairs of optical fibers, with each pair having an input fiber and an output fiber, are positioned in a focal plane of a collimating optic that has an optical axis. The fiber pairs are symmetrically positioned on either side of the optical axis with the input fibers positioned on one side of the optical axis and the output fibers positioned on the opposite side of the optical axis. The input fibers receive the optical test signal and the optical calibration signal. The output optical fibers are coupled to first and second optical detectors. An optical calibration source generates second order or greater spectral lines that fall within the first order spectral range of the optical system. A diffraction grating receives the optical test signal and the optical calibration signal from the collimating optic and separates the first order spectral components of the broadband optical test signal and passes the second order or greater spectral lines of the optical calibration signal. The first optical detector that is responsive to the first order spectral components of the optical test signal receives the optical test signal from the collimating optic and converts the optical test signal to an electrical signal. A second optical detector that is responsive to the second order or greater spectral lines of the optical calibration signal concurrently receives the optical calibration signal from the collimating optic and converts the calibrations signal to an electrical signal.

Abstract translation: 具有可用于光谱分析仪中的一阶光谱范围的光学系统接收宽带光学测试信号和光学校准信号，并且经由两个光学隔离路径将光信号耦合到分离的光学检测器。 每对具有输入光纤和输出光纤的第一和第二对光纤被定位在具有光轴的准直光学器件的焦平面中。 光纤对对称地位于光轴的任一侧，其中输入光纤位于光轴的一侧，并且输出光纤位于光轴的相反侧。 输入光纤接收光学测试信号和光学校准信号。 输出光纤耦合到第一和第二光学检测器。 光学校准源产生落在光学系统的一阶光谱范围内的第二级或更多光谱线。 衍射光栅接收来自准直光学器件的光学测试信号和光学校准信号，并分离宽带光学测试信号的一阶光谱分量，并通过光学校准信号的第二级或更多谱线。 响应于光学测试信号的一阶光谱分量的第一光学检测器从准直光学器件接收光学测试信号，并将光学测试信号转换为电信号。 响应于光学校准信号的二阶或更高谱线的第二光学检测器同时从准直光学器件接收光学校准信号，并将校准信号转换为电信号。

公开(公告)号：US20020021441A1

公开(公告)日：2002-02-21

申请号：US09932548

申请日：2001-08-17

Inventor： Adam E. Norton ,  Kenneth C. Johnson ,  Fred E. Stanke

IPC: G01J003/28

CPC classification number: G01N21/31 ,  G01J3/02 ,  G01J3/0224 ,  G01J3/0243 ,  G01J3/28 ,  G01N21/956 ,  G02B5/3083 ,  G02B27/28

Abstract: A small-spot imaging, spectrometry instrument for measuring properties of a sample has a polarization-scrambling element, such as a Lyot depolarizer, incorporated between the polarization-introducing components of the system, such as the beamsplitter, and the microscope objective of the system. The Lyot depolarizer varies polarization with wavelength. Sinusoidal perturbation in the resulting measured spectrum can be removed by data processing techniques or, if the depolarizer is thick or highly birefringent, may be narrower than the wavelength resolution of the instrument.

Abstract translation: 用于测量样品特性的小点成像光谱仪器具有混合在诸如分束器的系统的偏振引入部件之间的偏振加扰元件，例如Lyot去极化器，并且系统的显微镜物镜 。 Lyot去极化器使波长偏振。 所得到的测量光谱中的正弦扰动可以通过数据处理技术去除，或者如果消偏振器是厚的或高度双折射的，可能会比仪器的波长分辨率更窄。

公开(公告)号：US4878756A

公开(公告)日：1989-11-07

申请号：US229871

申请日：1988-08-08

Applicant: Norman L. Stauffer

Inventor： Norman L. Stauffer

IPC: G01J3/02 ,  G01J3/46 ,  G01J3/51 ,  G01N21/31

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0224 ,  G01J3/0243 ,  G01J3/51 ,  G01J3/513 ,  G01N21/314 ,  G01J2003/466 ,  G01N2201/126

Abstract: A color detecting apparatus and process in which light from a source is directed to a surface whose color is to be measured through an aspheric lens situated so that reflected radiation is returned to the aspheric lens along a reversely directed path. The aspheric lens collimates the reflected light from the surface and directs it to two or more detectors which are tuned to receive energy in two or more preselected band widths along paths which are substantially of equal length with each detector receiving energy in substantially same cross-sectional area of the collimated beam.

Abstract translation: 一种颜色检测装置和处理，其中来自源的光通过非球面透镜被引导到要测量其颜色的表面，使得反射的辐射沿着反向路径返回到非球面透镜。 非球面透镜使来自表面的反射光准直，并将其引导到两个或更多个检测器，其被调谐以沿着基本上具有相同长度的路径接收两个或更多个预选带宽的能量，每个检测器在基本相同的横截面中接收能量 准直光束的面积。

公开(公告)号：US3753618A

公开(公告)日：1973-08-21

申请号：US3753618D

申请日：1972-02-10

Applicant: ULTRA VIOLET PRODUCTS INC

Inventor： HALEY F

IPC: G01J3/18 ,  G01J3/04

CPC classification number: G01J3/02 ,  G01J3/0243 ,  G01J3/0256 ,  G01J3/18

Abstract: A compact monochromator with entrance and exit slits nearly incident permitting insertion and removal of the monochromator at a focal point without requiring change in the system. A monochromator with entrance and exit slits each formed by an edge and a mirror. A monochromator with entrance slit and mirror directing the beam through an aperture in a grating to a collimating mirror, defining a light path from the entrance slit and mirror to the collimating mirror to the grating and back to the collimating mirror to the exit mirror and slit.

Abstract translation: 具有几乎入射的入口和出口狭缝的紧凑型单色仪允许在焦点处插入和移除单色仪，而不需要改变系统。 具有各自由边缘和反射镜形成的入口和出口狭缝的单色仪。 具有入射狭缝和反射镜的单色仪将光束通过光栅中的孔指向准直镜，限定从入射狭缝和反射镜到准直镜到光栅的光路，并返回到出射镜和狭缝的准直镜 。

公开(公告)号：US20190204150A1

公开(公告)日：2019-07-04

申请号：US16303209

申请日：2017-05-01

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi KASAHARA ,  Katsumi SHIBAYAMA ,  Masaki HIROSE ,  Toshimitsu KAWAI ,  Hiroki OYAMA ,  Yumi KURAMOTO

IPC: G01J3/26 ,  G02B26/00 ,  G02B5/28 ,  G01J3/02 ,  B23K26/06 ,  B23K26/53

CPC classification number: G02B26/001 ,  B23K26/0006 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/56 ,  B81B3/0072 ,  B81C1/00539 ,  B81C1/00634 ,  G01J3/0243 ,  G01J3/26 ,  G02B5/284

Abstract: The Fabry-Perot interference filter includes: a substrate having a first surface, a first laminate having a first mirror portion disposed on the first surface, a second laminate having a second mirror portion facing the first mirror portion with an air gap interposed therebetween, and an intermediate layer defining the air gap between the first and second laminate. The substrate has an outer edge portion positioned outside an outer edge of the intermediate layer when viewed from a direction perpendicular to the first surface. The second laminate further includes a covering portion covering the intermediate layer and a peripheral edge portion positioned on the first surface in the outer edge portion. The second mirror portion, the covering portion, and the peripheral edge portion are integrally formed so as to be continuous with each other. The peripheral edge portion is thinned along an outer edge of the outer edge portion.

公开(公告)号：US20180188111A1

公开(公告)日：2018-07-05

申请号：US15910299

申请日：2018-03-02

Applicant: SciAps, Inc.

Inventor： David R. Day ,  Konstantin Derman ,  John Francis Egan ,  Paul Edward Soucy

IPC: G01J3/30 ,  G02B26/10 ,  G01J3/28 ,  G01J3/02 ,  G01J3/443 ,  G01N21/71 ,  G01J5/02

CPC classification number: G01J3/30 ,  G01J3/0218 ,  G01J3/0243 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/2823 ,  G01J3/443 ,  G01J5/028 ,  G01N21/718 ,  G01N2201/0221 ,  G02B26/10

Abstract: A handheld LIBS analysis method features a moveable laser focusing lens, and a laser beam directed to a sample via the laser focusing lens. A first mirror includes an aperture for the laser beam. This mirror is oriented to re-direct plasma radiation for delivery to a detection fiber.

公开(公告)号：US20180045561A1

公开(公告)日：2018-02-15

申请号：US15235401

申请日：2016-08-12

Applicant: ABB, Inc.

Inventor： John Brian Leen ,  Nathan E. Bramall

IPC: G01J3/02 ,  G01N21/3504 ,  G01J3/42

CPC classification number: G01J3/021 ,  G01J3/0208 ,  G01J3/0243 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/42 ,  G01N21/3504 ,  G01N21/39 ,  G01N2021/391 ,  G01N2021/399 ,  G01N2201/06113

Abstract: A cavity-enhanced absorption spectroscopy instrument has an optical cavity with two or more cavity mirrors, one mirror of which having a hole or other aperture for injecting a light beam, and the same or another mirror of which being partially transmissive to allow exit of light to a detector. A spherical-spherical configuration with at least one astigmatic mirror or a spherical-cylindrical configuration where the spherical mirror could also be astigmatic prevents a reentrant condition wherein the injected beam would prematurely exit the cavity through the aperture. This combination substantially increases the number of passes of the injected beam through a sample volume for sensitive detection of chemical species even in less than ideal conditions including low power laser or LED sources, poor mirror reflectivity or detector noise at the wavelengths of interest, or cavity alignment issues such as vibration or temperature and pressure changes.

公开(公告)号：US20170363470A1

公开(公告)日：2017-12-21

申请号：US15546003

申请日：2015-01-23

Applicant: OTO PHOTONICS INC.

Inventor： MENG-HUA WANG ,  KUEI WU CHANG ,  CHANG CHENG CHOU ,  CHIEN-HSIANG HUNG ,  JAN LIANG YEH

IPC: G01J3/02

CPC classification number: G01J3/0243 ,  G01J3/0202 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/0291 ,  G01J3/20

Abstract: A spectrometer (100) and an optical input portion (32) thereof are disclosed. The optical input portion (32) comprises an assembly structure (322), and the assembly structure (322) is formed at a hole wall (321) of a through hole (3211) of the optical input portion (32). A light (L1) is incident into a dispersing element (2) of the spectrometer (100) along an optical path (13) after passing through the through hole (3211), and is dispersed by the dispersing element (2). The assembly structure (322) is used to be detachably assembled with an optical element (200). When the optical element (200) is assembled with the assembly structure (322), an optical axis of the optical element (200) is linked to the optical path (13). As a result, the light (L1) passing through the optical element (200) is incident to the dispersing element (2) along the optical axis and the optical path (13).

公开(公告)号：US20170299436A1

公开(公告)日：2017-10-19

申请号：US15642262

申请日：2017-07-05

Applicant: OLYMPUS CORPORATION

Inventor： Gen HORIE

IPC: G01J3/28 ,  G06T7/70 ,  G01J3/02 ,  G01J3/30

CPC classification number: G01J3/2823 ,  G01J3/021 ,  G01J3/0232 ,  G01J3/0243 ,  G01J3/0289 ,  G01J3/04 ,  G01J3/30 ,  G06T7/70

Abstract: This spectral-image-obtaining device includes: a line-spectral-image acquiring unit that acquires a plurality of line spectral images; a frame-image acquiring unit that has an image-capturing range that encompasses that over which image capturing is performed by the line-spectral-image acquiring unit and that acquires a two-dimensional frame image that contains fewer color signals than the line spectral images; a comparison-image estimating unit that estimates comparison images for all lines based on the line spectral images acquired by the line-spectral-image acquiring unit and a wavelength characteristic of the frame-image acquiring unit; a line-spectral-image positional-deviation detecting unit that detects amounts of positional deviation between the comparison images estimated by the comparison-image estimating unit and corresponding positions within the frame image; and a positional-deviation correcting unit that fits the line spectral images to corresponding positions within the frame image based on the amounts of positional deviation detected by the line-spectral-image positional-deviation detecting unit.