公开(公告)号：US5946090A

公开(公告)日：1999-08-31

申请号：US974680

申请日：1997-11-19

Applicant: Hideo Tashiro ,  Satoshi Wada ,  Kazuyuki Akagawa

Inventor： Hideo Tashiro ,  Satoshi Wada ,  Kazuyuki Akagawa

IPC: G01J3/10 ,  G01J3/12 ,  G01J3/28 ,  G01J3/44

CPC classification number: G01J3/28 ,  G01J3/10 ,  G01J3/1256 ,  G01J3/44

Abstract: A spectrometric method is disclosed which uses a novel tunable laser as a monochromatic light source to carrying out spectrometry efficiently. As the tunable laser, a tunable laser is used which comprises a laser resonator so provided therein with a laser medium 14 capable of laser oscillation in a predetermined range of wavelength and a birefringent acousto-optic element 100 and which is capable of wavelength selection by selecting a frequency of an acoustic wave to be generated in the birefringent acousto-optic element 100 by means of a piezoelectric element 22 connected to a RF power source 20. The tunable laser is used instead of a spectroscopic light source and a monochromator in a conventional spectrophotometer to thereby carry out spectrometry efficiently. In case of detecting Raman scattered light no influence of fluorescence without using a spectroscope, a tunable laser 140 is controlled by a controlling device 141 to sweep a wavelength of a monochromatic light beam LB with which a sample S is irradiated while alternately switching the wavelength between a first frequency .upsilon..sub.ex1 and a second frequency .upsilon..sub.ex2 having a frequency difference .DELTA..upsilon..sub.ex relative to the first frequency .upsilon..sub.ex1. The resulting scattered light emanated from the sample S is detected by a photodetector 145 through an interference filter 144 which transmits light having an obsrvation frequency .upsilon..sub.ob. Output of the photodetector 145 is subjected to phase synchronous detection by a lock-in amplifier 146 and processed by a signal processor 147 to obtain a Raman spectrum ot the sample S.

Abstract translation: 公开了一种使用新型可调激光器作为单色光源进行光谱测定的光谱测定方法。 作为可调谐激光器，使用可调激光器，其包括激光谐振器，其中设置有能够在预定波长范围内激光振荡的激光介质14和双折射声光元件100，并且能够通过选择波长选择 通过连接到RF电源20的压电元件22在双折射声光元件100中产生的声波的频率。在常规分光光度计中使用可调谐激光器代替分光光源和单色仪 从而有效地进行光谱测定。 在不使用分光镜的情况下检测到拉曼散射光不影响荧光，可调谐激光器140由控制装置141控制，以扫描照射样品S的单色光束LB的波长，同时交替地切换 具有相对于第一次上升频率ex1的频率差DELTA上升的第一频率上升ex1和第二频率上限2。 从样品S发出的所得到的散射光由光电检测器145通过干涉滤光片144检测，该干涉滤光片144透射具有观察频率上限的光。 光检测器145的输出由锁定放大器146进行相位同步检测，并由信号处理器147进行处理以获得样品S上的拉曼光谱。

公开(公告)号：US5926283A

公开(公告)日：1999-07-20

申请号：US112538

申请日：1998-07-09

Applicant: Mark F. Hopkins

Inventor： Mark F. Hopkins

IPC: G01J3/12 ,  G01J3/28 ,  G01J3/51 ,  G02B13/00 ,  G01J3/26

CPC classification number: G01J3/51 ,  G01J3/2823 ,  G01J3/513

Abstract: A multi-spectral two-dimensional imaging spectrometer includes a combination of single or multi-element, achromatic, well-corrected lenses for imaging a two-dimensional scene on an internal field stop. The light emanating from this intermediate image is collimated with another multi-element, achromatic, well-corrected lens. A spectral separation subassembly that divides the incident light into multiple, identical, and independent arms is placed in the collimated space following the collimating lens. The light in each arm is spectrally filtered based on the properties of an interference filter in each arm. An imaging subassembly composed of a single multi-element, achromatic, well-corrected lens system forms contiguous images onto a single two-dimensional detector array. The images are identical copies of the original object with each copy having a different spectral component and can be viewed on a standard monitor or alternatively on a computer employing an analog-to-digital conversion device.

Abstract translation: 多光谱二维成像光谱仪包括单个或多个元素，消色差，良好校正的透镜的组合，用于在内部场停止上成像二维场景。 从该中间图像发出的光与另一个多元素，消色差，良好校正的透镜准直。 将入射光分为多个，相同和独立的光束的光谱分离子组件放置在准直透镜之后的准直空间中。 基于每个臂中的干涉滤波器的特性，每个臂中的光被光谱滤波。 由单个多元素，消色差，良好校正的透镜系统组成的成像子组件在单个二维检测器阵列上形成连续的图像。 图像是原始对象的相同副本，每个副本具有不同的频谱分量，并且可以在标准监视器上或者在使用模数转换装置的计算机上查看。

公开(公告)号：US5880831A

公开(公告)日：1999-03-09

申请号：US987907

申请日：1997-12-09

Applicant: Dale Buermann ,  Abdul Rahim Forouhi ,  Michael J. Mandella

Inventor： Dale Buermann ,  Abdul Rahim Forouhi ,  Michael J. Mandella

IPC: G01B11/06 ,  G01J3/02 ,  G01J3/12 ,  G01J3/42 ,  G01J4/00

CPC classification number: G01J3/12 ,  G01B11/0625 ,  G01B11/0641 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/42 ,  G01J4/00

Abstract: The invention comprises an apparatus for characterizing a thin film using the reflected spectrum of the film. The apparatus uses two toroidal mirrors in an optical relay to direct light onto the thin film and to direct reflected light from the film to a spectrophotometer. A computer then analyzes the reflected spectrum to characterize the optical properties of the thin film. The optical relay allows for a range of angles of incidence upon the sample, and has no chromatic aberration.

Abstract translation: 本发明包括使用该膜的反射光谱来表征薄膜的装置。 该设备在光学继电器中使用两个环形反射镜来将光引导到薄膜上并将来自膜的反射光引导到分光光度计。 然后，计算机分析反射光谱以表征薄膜的光学性质。 光学继电器允许在样品上的入射角范围，并且没有色差。

公开(公告)号：US5828066A

公开(公告)日：1998-10-27

申请号：US674869

申请日：1996-07-02

Applicant: Robert G. Messerschmidt

Inventor： Robert G. Messerschmidt

IPC: G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/28 ,  G01J3/45 ,  G01N21/35

CPC classification number: G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/2823 ,  G01J3/45 ,  G01J3/021 ,  G01J3/0229

Abstract: A spectrometer having a source of broad band infrared energy, a relay mirror that focuses the infrared energy at an intercepting mirror, a first object mirror that collimates the infrared energy from the intercepting mirror, a spatial light modulator that receives the collimated infrared energy and reflects it back to the first object mirror, the spatial light modulator including deformable mirror elements, and a controller that deforms the mirror elements according to a predetermined pattern. Deformable mirror elements obtain needed spectra while reducing the mechanical complexity of the spectrometer.

公开(公告)号：US5708504A

公开(公告)日：1998-01-13

申请号：US736690

申请日：1996-10-25

Applicant: Mark F. Hopkins

Inventor： Mark F. Hopkins

IPC: G01J3/12 ,  G01J3/26 ,  G01J3/28 ,  G01J3/36 ,  G01B9/02

CPC classification number: G01J3/36 ,  G01J3/26 ,  G01J3/2823 ,  G01J2003/1226 ,  G01J3/021

Abstract: An interfering imaging spectrometer is described wherein a single interference filter disposed in preselected angular relationship with one or more mirrors separates an incoming optical signal or field of view into multiple contiguous images separated spatially and spectrally, each image having a unique spectral content.

Abstract translation: 描述了一种干涉成像光谱仪，其中以与一个或多个镜的预选角度关系设置的单个干涉滤光器将入射的光学信号或视场分离为在空间和光谱上分离的多个邻接图像，每个图像具有唯一的光谱内容。

公开(公告)号：US5689333A

公开(公告)日：1997-11-18

申请号：US438270

申请日：1995-05-10

Applicant: David N. Batchelder ,  Chunwei Cheng ,  Brian J. E. Smith ,  Raymond J. Chaney

Inventor： David N. Batchelder ,  Chunwei Cheng ,  Brian J. E. Smith ,  Raymond J. Chaney

IPC: G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/44 ,  G02B21/00

CPC classification number: G01J3/12 ,  G01J3/2803 ,  G01J3/44 ,  G02B21/004 ,  G02B21/008 ,  B82Y35/00 ,  G01J2003/1226 ,  G01J2003/123 ,  G01J3/18 ,  G01J3/26

Abstract: A sample placed under a microscope is illuminated by light from a laser beam. Raman scattered light is passed back via a dichroic filter to various optical components which analyse the Raman spectrum, and thence to a CCD detector. The optical components for analysing the Raman spectrum include tunable dielectric filters in a filter wheel; a Fabry-Perot etalon; and a diffraction grating. These various components may be swapped into the optical path as desired, for example using movable mirrors, enabling the apparatus to be used very flexibly for a variety of different analysis procedures. Various novel analysis methods are also described.

Abstract translation: 置于显微镜下的样品由来自激光束的光照射。 拉曼散射光通过二向色滤光器返回到分析拉曼光谱的各种光学部件，然后到CCD检测器。 用于分析拉曼光谱的光学部件包括滤光轮中的可调介质滤光器; 法布里 - 珀罗标准具; 和衍射光栅。 这些各种组件可以根据需要被交换到光路中，例如使用可移动反射镜，使得能够非常灵活地使用该设备用于各种不同的分析过程。 还描述了各种新颖的分析方法。

公开(公告)号：US5477321A

公开(公告)日：1995-12-19

申请号：US298613

申请日：1994-08-31

Applicant: Rick J. Johnson

Inventor： Rick J. Johnson

IPC: G01J3/08 ,  G01J3/12 ,  G01J3/42 ,  G01N21/27 ,  G01N21/31

CPC classification number: G01J3/1256 ,  G01J3/08 ,  G01J3/42

Abstract: A dual beam tunable spectrometer comprises a radiation source, generating means, a detector, and a shutter arrangement. The radiation source generates an incident radiative beam. The generating means, which includes an acousto-optic tunable filter, receives the incident radiative beam and generates therefrom a reference beam and a sample beam. The detector detects at least part of the reference beam, and detects at least part of the sample beam emitted from a sample following illumination of the sample with the sample beam. The shutter arrangement includes a first shutter selectively permitting passage therethrough of the part of the reference beam and a second shutter selectively permitting passage therethrough of the part of the sample beam. The shutter arrangement opens the first shutter and closes the second shutter to permit the detector to detect only the part of the reference beam. Similarly, the shutter arrangement closes the first shutter and opens the second shutter to permit the detector to detect only the part of the sample beam.

Abstract translation: 双光束可调光谱仪包括辐射源，发生装置，检测器和快门装置。 辐射源产生入射辐射束。 包括声光可调谐滤波器的发生装置接收入射的辐射束并由其产生参考光束和样本光束。 检测器检测参考光束的至少一部分，并且在用样品光束照射样品之后检测从样品发射的样品光束的至少一部分。 快门装置包括：第一快门，其选择性地允许通过其中参考光束的部分;以及第二快门，其选择性地允许通过其中的部分样本光束。 快门装置打开第一快门并且关闭第二快门以允许检测器仅检测参考光束的一部分。 类似地，快门装置关闭第一快门并打开第二快门以允许检测器仅检测样本波束的一部分。

公开(公告)号：US5453883A

公开(公告)日：1995-09-26

申请号：US157930

申请日：1993-11-26

Applicant: Frederic Chazallet

Inventor： Frederic Chazallet

IPC: A61N5/06 ,  F21V8/00 ,  F21V9/04 ,  F21V9/10 ,  F21V29/02 ,  G01J3/12 ,  G02B5/22 ,  G01J1/00

CPC classification number: F21V29/67 ,  A61N5/0619 ,  F21V29/02 ,  F21V9/04 ,  F21V9/10 ,  G01J3/12 ,  G02B6/0005 ,  A61N2005/0644 ,  A61N2005/0663 ,  A61N5/0617

Abstract: An apparatus for producing a substantially monochromatic light beam for chromotherapy and/or actinotherapy is disclosed ; the apparatus comprises a transportable housing including a light source, which housing includes a movable heterogeneous interference filter mounted on a support that is displaceable by means of a motor, said apparatus further including a wand enabling said light beam to be directed onto a zone to be treated, and said apparatus also including transmission means for conveying said light beam from said housing to said wand, said housing including an infrared filter interposed between said light source and said interference filter.

Abstract translation: 公开了一种用于制备用于色素疗法和/或放线疗法的基本单色光束的装置; 该装置包括可移动壳体，其包括光源，该壳体包括安装在借助于电动机可移动的支撑件上的可移动异质干涉滤光器，所述装置还包括使得所述光束能够被引导到区域上 并且所述装置还包括用于将所述光束从所述壳体传送到所述棒的传输装置，所述壳体包括介于所述光源和所述干涉滤光器之间的红外滤光器。

公开(公告)号：US5406082A

公开(公告)日：1995-04-11

申请号：US982293

申请日：1992-11-27

Applicant: Lee H. Pearson ,  John Stover ,  Mary Knighton ,  Brett Swimley

Inventor： Lee H. Pearson ,  John Stover ,  Mary Knighton ,  Brett Swimley

IPC: G01B11/30 ,  F02K9/96 ,  G01B11/06 ,  G01J3/12 ,  G01N21/17 ,  G01N21/21 ,  G01N21/31 ,  G01N21/59 ,  G01N21/64 ,  G01N21/84 ,  G01N21/88 ,  G01N21/93 ,  G01N21/94 ,  G01N21/35 ,  G01N21/47

CPC classification number: G01N21/17 ,  G01B11/0625 ,  G01N21/314 ,  G01N21/6456 ,  G01N21/8806 ,  G01N21/94 ,  G01J3/1256 ,  G01N2021/3133 ,  G01N2021/4709 ,  G01N2021/8427 ,  G01N2021/945 ,  G01N21/21 ,  G01N21/4738 ,  G01N21/474 ,  G01N21/5911 ,  G01N21/8422 ,  G01N21/93

Abstract: A system and process for obtaining near real time, non-destructive inspection and characterization of surfaces. The system includes an infrared light source which is directed on a surface to be inspected. A portion of the reflected light is gathered and directed through an optical filter arrangement which separates the light into a plurality of sets of wavelengths which correspond to particular physical properties of the thin film, such as absorbance. The intensity of each set of wavelengths is detected by optical detectors and the resulting signals analyzed to characterize the surface.

Abstract translation: 用于获得近乎实时，无损检测和表征表面的系统和过程。 该系统包括被引导到被检查表面上的红外光源。 反射光的一部分被聚集并引导通过光学滤光器装置，该滤光器装置将光分离成对应于薄膜的特定物理性质的多组波长，例如吸光度。 通过光学检测器检测每组波长的强度，并且分析所得到的信号以表征表面。

公开(公告)号：US5351121A

公开(公告)日：1994-09-27

申请号：US9454

申请日：1993-01-27

Applicant: Thomas M. Baer ,  Kelly A. Cox ,  Phillip Gooding ,  John Cole ,  David F. Head ,  Gregory J. Kintz

Inventor： Thomas M. Baer ,  Kelly A. Cox ,  Phillip Gooding ,  John Cole ,  David F. Head ,  Gregory J. Kintz

IPC: G01J3/12 ,  G01J3/44 ,  G01J3/453 ,  H01S3/082 ,  H01S3/094 ,  H01S3/16 ,  G01N21/65

CPC classification number: H01S3/082 ,  G01J3/44 ,  G01J3/1256 ,  G01J3/453 ,  G01N2201/06113 ,  H01S3/094038 ,  H01S3/1673

Abstract: A Fourier Transform Raman Spectrometer system includes a folded V laser cavity. A first leg of the folded V laser cavity is defined by a highly reflective end mirror and a dichroic fold mirror and a second leg of the folded V laser cavity is defined by the fold mirror and an output coupler. A solid-state laser gain medium is disposed in the first leg of the folded V laser cavity and is pumped by a pump source aligned with the optical path of the first leg of the laser cavity and radiating through the fold mirror. The fold mirror is highly transmissive at the wavelength of pump radiation from the pump source and highly reflective at the laser output wavelength. An output beam from the laser is passed through a tuneable filter comprising an acousto-optic device and is directed at a sample to be analyzed. Light reflected from the sample is directed to a Raman Spectrometer for analysis.

Abstract translation: 傅里叶变换拉曼光谱仪系统包括折叠的V激光腔。 折叠的V激光腔的第一段由高反射端镜和二向色折射镜限定，折叠的V激光腔的第二支腿由折叠镜和输出耦合器限定。 固态激光增益介质设置在折叠的V激光腔的第一支腿中，并且通过与激光腔的第一支腿的光路对齐并且通过折叠镜辐射的泵浦源来泵浦。 折射镜在来自泵浦源的泵浦辐射的波长处是高度透射的，并且在激光输出波长处具有高反射性。 来自激光器的输出光束通过包括声光器件的可调谐滤光器，并且被引导到待分析的样品。 从样品反射的光被引导到拉曼光谱仪进行分析。