公开(公告)号：US07389027B2

公开(公告)日：2008-06-17

申请号：US11782481

申请日：2007-07-24

Applicant: Andrew D. Sappey ,  James Howell ,  Henrik Hofvander ,  Bernard Patrick Masterson

Inventor： Andrew D. Sappey ,  James Howell ,  Henrik Hofvander ,  Bernard Patrick Masterson

IPC: G02B6/26

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0289 ,  G01J3/0297 ,  G01J3/108 ,  G01J3/1809 ,  G01J5/601 ,  G01J2003/104 ,  G01J2003/423 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399 ,  G02B6/14

Abstract: A pitch side optical system for use in diode laser spectroscopy consisting of more than one diode laser having select lasing frequencies with each diode laser being coupled to an end of a distinct input optical fiber. The pitch side optical system further consists of a multiplexer optically coupled to the other end of less than all of the input optical fibers with the multiplexer outputting multiplexed laser light to a pitch side optical fiber. The pitch side optical system further consists of a coupler optically coupled to the far end of the pitch side optical fiber and the far end of an unmultiplexed input optical fiber with the coupler combining the multiplexed laser light and the unmultiplexed laser light and outputting the combined light to a transmission optical fiber. Typically, the coupler is located near the combustion process. The pitch side optical system further consists of a pitch optic coupled to the transmission optical fiber. Typically, all optical fibers used in the pitch side optical system are single mode optical fibers.

Abstract translation: 用于二极管激光光谱的俯仰侧光学系统，其由具有选择的激光频率的多于一个的二极管激光器组成，每个二极管激光器耦合到不同的输入光纤的端部。 音调侧光学系统还包括多路复用器，其光耦合到少于所有输入光纤的另一端，多路复用器将多路复用的激光输出到音调侧光纤。 俯仰侧光学系统还包括光耦合到俯仰侧光纤的远端的耦合器和未复用输入光纤的远端，耦合器组合复用的激光和未复用的激光，并输出组合的光 传输光纤。 通常，耦合器位于燃烧过程附近。 俯仰侧光学系统还包括耦合到传输光纤的俯仰光学器件。 通常，在俯仰侧光学系统中使用的所有光纤都是单模光纤。

公开(公告)号：US20080035848A1

公开(公告)日：2008-02-14

申请号：US11317265

申请日：2005-12-23

Applicant: Jacob Y. Wong

Inventor： Jacob Y. Wong

IPC: G01J5/02 ,  G01N21/01

CPC classification number: G01J3/42 ,  G01J3/02 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/108 ,  G01J3/36 ,  G01N21/0303 ,  G01N21/3504 ,  G01N21/39 ,  G01N21/61 ,  G01N2021/0382 ,  G01N2021/3545

Abstract: A compact and long path-length sample cell that is a hollow waveguide with a plurality of bends that are collectively greater than 180 degrees in three dimensions, a focusing device for quasi-focusing radiation into a beam with an angle of incidence between greater than approximately 0° and approximately 10° relative to a longitudinal axis of a first linear segment of the waveguide proximate a source of infrared radiation and a second focusing device for focusing infrared radiation after it has traveled through substantially all of the waveguide as it approaches a detector chamber. The sample cell can be used with two or more detectors to detect the concentrations of one or more gasses, to levels less than 100 ppm, after correction for water vapor.

Abstract translation: 一种紧凑且长的路径长度的样品池，其是具有多个弯曲的中空波导，其多个弯曲在三维上共同大于180度;聚焦装置，用于将辐射准直聚焦成具有大于约的入射角的光束 0°和约10°，相对于靠近红外辐射源的波导的第一线性段的纵向轴线;以及第二聚焦装置，用于在红外辐射在其接近检测器腔室之后穿过基本上所有的波导后聚焦红外辐射 。 在对水蒸气进行校正之后，样品池可与两个或更多个检测器一起使用，以检测一种或多种气体的浓度，至少于100ppm的水平。

公开(公告)号：US07292343B2

公开(公告)日：2007-11-06

申请号：US11075973

申请日：2005-03-08

Applicant: Rajasekhar M. Rao ,  John T. Melchior ,  Holger K. Glatzel

Inventor： Rajasekhar M. Rao ,  John T. Melchior ,  Holger K. Glatzel

IPC: G01B9/02 ,  G01J3/45 ,  H01S3/13

CPC classification number: G01J1/4257 ,  G01J1/429 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/024 ,  G01J3/027 ,  G01J3/26 ,  G01J9/02 ,  G01J9/0246 ,  G03F7/70025 ,  G03F7/70575 ,  G03F7/70933 ,  H01S3/0057 ,  H01S3/0071 ,  H01S3/02 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/0401 ,  H01S3/041 ,  H01S3/08009 ,  H01S3/08036 ,  H01S3/097 ,  H01S3/0971 ,  H01S3/0975 ,  H01S3/1024 ,  H01S3/104 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/1305 ,  H01S3/134 ,  H01S3/139 ,  H01S3/22 ,  H01S3/2207 ,  H01S3/223 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256 ,  H01S3/2258 ,  H01S3/2333 ,  H01S3/2366

Abstract: A wavemeter and method for measuring bandwidth for a high repetition rate gas discharge laser having an output laser bean comprising a pulsed output of greater than or equal to 15 mJ per pulse, sub-nanometer bandwidth tuning range pulses having a femptometer bandwidth precision and tens of femptometers bandwidth accuracy range, for measuring bandwidth on a pulse to pulse basis at pulse repetition rates of 4000 Hz and above, is disclosed which may comprise a focusing lens having a focal length; an optical interferometer creating an interference fringe pattern; an optical detection means positioned at the focal length from the focusing lens; and a bandwidth calculator calculating bandwidth from the position of interference fringes in the interference fringe pattern incident on the optical detection means, defining a DID and a DOD, the respective distances between a pair of first fringe borders and between a pair of second fringe borders in the interference pattern on an axis of the interference pattern, and according to the formula Δλ=λ0[DOD2−DID2]/[8f2−D02], where λ0 is an assumed constant wavelength and D0=(DOD−DID)/2, and f is the focal length. The optical detector may be a photodiode array. The wavemeter may have an optical interferometer having a slit function; the slit function and the focal length being selected to deliver to the optical detector the two innermost fringes of the optical interference ring pattern. The optical detector may comprise an array of pixels each having a height and width and the array having a total width; and an aperture at the optical input to the optical interferometer may selectively input to the optical interferometer a portion of a beam of light sufficient for the output of the etalon to illuminate the optical detector over the height of each respective pixel height and the total width. The optical interferometer may comprise an etalon having a slit function of 3 pm or less and a finesses of 25 or greater; and the focal length may be 1.5 meters. A second stage diffuser may be placed between the first stage diffuser and the etalon delivering a narrow cone of light to the etalon, and an aperture between the second stage diffuser and the etalon may deliver to the etalon a thin strip of the narrow cone of light.

公开(公告)号：US20070171408A1

公开(公告)日：2007-07-26

申请号：US11649292

申请日：2007-01-04

Applicant: Xinghua Wang ,  Thomas Voigt

Inventor： Xinghua Wang ,  Thomas Voigt

IPC: G01J3/40

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0294 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/2846 ,  G01J3/44 ,  G01N21/253 ,  G01N21/6452 ,  G01N2021/6417

Abstract: In one embodiment, the disclosure relates to a method including: collecting photons from the sample having a plurality of regions to form a sample optical data set; selectively transmitting a first portion of the optical data set through a first of a plurality of apertures of an electro-optical shutter, each of the plurality of apertures optically communicating a portion of the optical data set; geometrically conforming the first portion of the optical data set for communication with a spectrometer opening; processing the conformed first portion of the optical data set at the spectrometer to obtain a spectrum for a first of the plurality of sample regions.

Abstract translation: 在一个实施例中，本公开涉及一种方法，包括：从具有多个区域的样本收集光子以形成样本光学数据集; 通过电光快门的多个孔中的第一个选择性地传输光学数据组的第一部分，多个孔中的每一个光学地传送光学数据组的一部分; 在几何上符合用于与光谱仪开口通信的光学数据组的第一部分; 处理在光谱仪上的光学数据集合的合适的第一部分以获得多个样本区域中的第一个的光谱。

公开(公告)号：US07248755B2

公开(公告)日：2007-07-24

申请号：US10543288

申请日：2004-03-31

Applicant: Andrew D Sappey ,  James Howell ,  Henrick Hofvander ,  Bernard Patrick Masterson

Inventor： Andrew D Sappey ,  James Howell ,  Henrick Hofvander ,  Bernard Patrick Masterson

IPC: G02B6/00

CPC classification number: G01J3/36 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0237 ,  G01J3/024 ,  G01J3/0289 ,  G01J3/0297 ,  G01J3/108 ,  G01J3/1809 ,  G01J5/601 ,  G01J2003/104 ,  G01J2003/423 ,  G01N21/359 ,  G01N21/39 ,  G01N2021/399 ,  G02B6/14

Abstract: A sensing apparatus consisting of more than one diode laser having select lasing frequencies, a multiplexer optically coupled to the outputs of the diode lasers with the multiplexer being further optically coupled to a pitch side optical fiber. Multiplexed laser light is transmitted through the pitch side optical fiber to a pitch optic operatively associated with a process chamber which may be a combustion chamber or the boiler of a coal or gas fired power plant. The pitch optic is oriented to project multiplexed laser output through the process chamber. Also operatively oriented with the process chamber is a catch optic in optical communication with the pitch optic to receive the multiplexed laser output projected through the process chamber. The catch optic is optically coupled to an optical fiber which transmits the multiplexed laser output to a demultiplexer. The demultiplexer demultiplexes the laser light and optically couples the select lasing frequencies of light to a detector with the detector being sensitive to one of the select lasing frequencies.

Abstract translation: 由多于一个具有选择的激光频率的二极管激光器组成的感测装置，多路复用器光学耦合到二极管激光器的输出端，多路复用器进一步光耦合到俯仰侧光纤。 多路复用激光通过俯仰侧光纤传输到与可以是燃烧室或煤或燃气发电厂的锅炉的处理室可操作地连接的俯仰光学器件。 俯仰光学器件定向成投影通过处理室的多路复用激光输出。 还与操作室一起操作地定向的是与俯仰光学器件光学通信的接收光学器件，以接收通过处理室投射的多路复用的激光输出。 捕捉光学器件光耦合到将多路复用的激光输出传输到解复用器的光纤。 解复用器解复用激光并将选择的激光频率光耦合到检测器，检测器对选择的激光频率之一敏感。

公开(公告)号：US20070159626A1

公开(公告)日：2007-07-12

申请号：US11619629

申请日：2007-01-04

Applicant: Oren Aharon

Inventor： Oren Aharon

IPC: G01J3/28

CPC classification number: G01J3/2803 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/024 ,  G01J3/0243 ,  G01J3/027

Abstract: A method and a matching system for providing high resolution spectroscopy measurements. Input light beam is spread, forming two dimensional array of beams. These beams are further intercepted by two dimensional detecting means. A corresponding electronic system interprets the power collected by each detecting element subsequently producing spectral data.

Abstract translation: 一种用于提供高分辨率光谱测量的方法和匹配系统。 输入光束传播，形成二维阵列的光束。 这些光束被二维检测装置进一步截取。 相应的电子系统解释由每个检测元件收集的功率，随后产生光谱数据。

公开(公告)号：US07239385B2

公开(公告)日：2007-07-03

申请号：US10999260

申请日：2004-11-30

Applicant: Roger W. Schmitz ,  Bryan J. Scheele

Inventor： Roger W. Schmitz ,  Bryan J. Scheele

IPC: G01J3/42

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/0291 ,  G01J2003/2866 ,  G01N21/274 ,  G01N21/474

Abstract: A spectrophotometric instrument is comprised of a processor, a probe having a tissue engaging surface with an aperture therethrough and a light source producing measurement light signals and optically coupled to the probe via a first optical path. A partially reflective first reflecting member is located in the probe and has a generally elliptical profile positioned to reflect a first portion of the measurement light signals to the tissue aperture and to transmit a second portion of the measurement light signals through the first reflecting member. A second reflecting member is located in the probe and has a generally elliptical profile positioned to reflect the measurement light signals transmitted through the first reflecting member. A second optical path has a distal end positioned to receive the measurement light signals reflected off of the second reflecting member and a proximal end coupled to the processor. A third optical path has a distal end positioned in the probe to receive light signals transmitted through the tissue sample and a proximal end coupled to the processor.

Abstract translation: 分光光度仪器包括处理器，具有穿过其中的孔的组织接合表面的探针和产生测量光信号的光源并经由第一光路光学耦合到探针。 部分反射的第一反射部件位于探头中并且具有大致椭圆形轮廓，其被定位成将测量光信号的第一部分反射到组织孔，并且通过第一反射部件透射测量光信号的第二部分。 第二反射部件位于探头中并且具有大致椭圆形轮廓，其被定位成反射通过第一反射部件传输的测量光信号。 第二光路具有远端，其定位成接收从第二反射构件反射的测量光信号和耦合到处理器的近端。 第三光路具有位于探针中的远端，以接收透过组织样本的光信号和耦合到处理器的近端。

公开(公告)号：US20060055935A1

公开(公告)日：2006-03-16

申请号：US11221925

申请日：2005-09-09

Applicant: Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

Inventor： Pavel Cheben ,  Ian Powell ,  Siegfried Janz ,  Dan-Xia Xu

IPC: G01B9/02

CPC classification number: G01J3/02 ,  G01J3/0205 ,  G01J3/021 ,  G01J3/024 ,  G01J3/0256 ,  G01J3/14 ,  G01J3/18 ,  G01J3/4531 ,  G01J3/4532 ,  G02B6/12019

Abstract: A spectroscopic method and system for the spectral analysis of an optical signal directed to a wavelength dispersive component having two interleaved dispersive devices. For a single wavelength, the optical signal exiting the interleaved dispersive devices includes two wavefronts generally disposed at an angle to one another and producing an interference pattern. The interference pattern is detected and subsequently analyzed via a Fourier transform to produce the optical spectrum of the input beam. The method and system are applicable in a planar waveguide environment, in reflection and transmission geometries.

Abstract translation: 用于对具有两个交错色散装置的波长色散分量的光信号进行光谱分析的光谱方法和系统。 对于单个波长，离开交错色散装置的光信号包括通常以彼此成角度地设置并产生干涉图案的两个波前。 通过傅立叶变换来检测并随后分析干涉图案以产生输入光束的光谱。 该方法和系统适用于平面波导环境，反射和透射几何形状。

公开(公告)号：US20050174576A1

公开(公告)日：2005-08-11

申请号：US11075973

申请日：2005-03-08

Applicant: Rajasekhar Rao ,  John Melchior ,  Holger Glatzel

Inventor： Rajasekhar Rao ,  John Melchior ,  Holger Glatzel

IPC: G01B9/02 ,  G01J1/42 ,  G01J9/02 ,  G03F7/20 ,  H01S3/00 ,  H01S3/036 ,  H01S3/038 ,  H01S3/04 ,  H01S3/041 ,  H01S3/08 ,  H01S3/097 ,  H01S3/0971 ,  H01S3/0975 ,  H01S3/102 ,  H01S3/104 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/11 ,  H01S3/13 ,  H01S3/134 ,  H01S3/139 ,  H01S3/22 ,  H01S3/223 ,  H01S3/225 ,  H01S3/23

CPC classification number: G01J1/4257 ,  G01J1/429 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/024 ,  G01J3/027 ,  G01J3/26 ,  G01J9/02 ,  G01J9/0246 ,  G03F7/70025 ,  G03F7/70575 ,  G03F7/70933 ,  H01S3/0057 ,  H01S3/0071 ,  H01S3/02 ,  H01S3/036 ,  H01S3/038 ,  H01S3/0385 ,  H01S3/0401 ,  H01S3/041 ,  H01S3/08009 ,  H01S3/08036 ,  H01S3/097 ,  H01S3/0971 ,  H01S3/0975 ,  H01S3/1024 ,  H01S3/104 ,  H01S3/105 ,  H01S3/1055 ,  H01S3/1305 ,  H01S3/134 ,  H01S3/139 ,  H01S3/22 ,  H01S3/2207 ,  H01S3/223 ,  H01S3/225 ,  H01S3/2251 ,  H01S3/2256 ,  H01S3/2258 ,  H01S3/2333 ,  H01S3/2366

Abstract: A wavemeter and method for measuring bandwidth for a high repetition rate gas discharge laser having an output laser bean comprising a pulsed output of greater than or equal to 15 mJ per pulse, sub-nanometer bandwidth tuning range pulses having a femptometer bandwidth precision and tens of femptometers bandwidth accuracy range, for measuring bandwidth on a pulse to pulse basis at pulse repetition rates of 4000 Hz and above, is disclosed which may comprise a focusing lens having a focal length; an optical interferometer creating an interference fringe pattern; an optical detection means positioned at the focal length from the focusing lens; and a bandwidth calculator calculating bandwidth from the position of interference fringes in the interference fringe pattern incident on the optical detection means, defining a DID and a DOD, the respective distances between a pair of first fringe borders and between a pair of second fringe borders in the interference pattern on an axis of the interference pattern, and according to the formula Δλ=λ0[DOD2−DID2]/[8f2−D02], where λ0 is an assumed constant wavelength and D0=(DOD−DID)/2, and f is the focal length. The optical detector may be a photodiode array. The wavemeter may have an optical interferometer having a slit function; the slit function and the focal length being selected to deliver to the optical detector the two innermost fringes of the optical interference ring pattern. The optical detector may comprise an array of pixels each having a height and width and the array having a total width; and an aperture at the optical input to the optical interferometer may selectively input to the optical interferometer a portion of a beam of light sufficient for the output of the etalon to illuminate the optical detector over the height of each respective pixel height and the total width. The optical interferometer may comprise an etalon having a slit function of 3 pm or less and a finesses of 25 or greater; and the focal length may be 1.5 meters. A second stage diffuser may be placed between the first stage diffuser and the etalon delivering a narrow cone of light to the etalon, and an aperture between the second stage diffuser and the etalon may deliver to the etalon a thin strip of the narrow cone of light.

公开(公告)号：US6075595A

公开(公告)日：2000-06-13

申请号：US230138

申请日：1999-01-19

Applicant: Jouko Malinen

Inventor： Jouko Malinen

IPC: G01J3/10 ,  G01J3/18

CPC classification number: G01J3/10 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0216 ,  G01J3/0218 ,  G01J3/024 ,  G01J3/0259 ,  G01J3/0286 ,  G01J3/18 ,  G01J3/32 ,  G01J2003/104

Abstract: The present invention concerns an LED spectrometer operating without moving parts according to the sweep principle, and appropriate to serve as a structural component in many kinds of spectroscopic concentration analyzers. The design of the invention affords the advantage that, even at its minimum, the optical power of the LED spectrometer of the invention is about fivefold compared with the designs of prior art. Furthermore, improvement of the efficiency of the LED radiation source and of that of the optics has brought a multiple augmentation in power to the wavelength spectrum sent out by the radiation source. In the design of the invention, concentrators (6) of non-imaging type are used to collimate the wavelength spectrum emitted by the LEDs (3).

Abstract translation: PCT No.PCT / FI97 / 00451 Sec。 371日期1999年1月19日 102（e）1999年1月19日PCT PCT 1997年7月17日PCT公布。 公开号WO98 / 03842 日期1998年1月29日本发明涉及根据扫描原理在没有移动部件的情况下操作的LED光谱仪，并且适合用作多种光谱浓度分析仪中的结构部件。 本发明的设计提供的优点是，即使在最小的情况下，与现有技术的设计相比，本发明的LED光谱仪的光功率约为五倍。 此外，LED辐射源和光学器件的效率的提高已经对由辐射源发出的波长光谱的功率进行了多次增加。 在本发明的设计中，使用非成像型聚光器（6）来校准由LED（3）发射的波长光谱。