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。

公开(公告)号：US5784158A

公开(公告)日：1998-07-21

申请号：US755486

申请日：1996-11-22

Applicant: Alexei Stanco ,  Mark Aizfagendler

Inventor： Alexei Stanco ,  Mark Aizfagendler

IPC: G01J3/02 ,  G01J3/12 ,  G01J3/28

CPC classification number: G01J3/12 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0213 ,  G01J3/0229 ,  G01J3/024 ,  G01J3/0254 ,  G01J3/28

Abstract: This invention is for a broad spectrum apparatus that provides a substantially uniform spectral response from a spectrometer by introducing one or more elements whose combined response or correction factor is the inverse of that produced by the rest of the apparatus. The response of the elements can be formed either pre or post dispersion. In the case of pre-dispersion the correcting components may be optical components chosen from a full combination of optical filters, either purely transmissive or a combination of transmissive and reflective as in the case of dichroic mirrors, optical lenses with chromatic aberration, integrating spheres or other diffusers coated with material whose response is wavelength dependant. The post-dispersive application may involve a spatial filter or shaped aperture to partially block the more intense wavelengths. A particular attractive application may be a mask that is directly etched onto the surface of a CCD array detector. Post-dispersive applications may also include custom neutral density filters or variable neutral density filters.

Abstract translation: 本发明涉及一种广谱设备，其通过引入一个或多个元件提供来自光谱仪的基本上均匀的光谱响应，其中组合的响应或校正因子与设备的其余部分产生的相反。 元件的响应可以在分散之前或之后形成。 在预分散的情况下，校正组件可以是从完全组合的滤光器中选择的光学组件，纯滤光器，纯透光或透射和反射组合，如在分色镜的情况下，具有色差的光学透镜，积分球或 其他涂覆有响应波长依赖的材料的扩散器。 后分散应用可以涉及空间滤波器或成形孔以部分地阻挡更强的波长。 特别有吸引力的应用可以是直接蚀刻到CCD阵列检测器的表面上的掩模。 后分散应用还可以包括定制的中性密度滤光片或可变中性密度滤光片。

公开(公告)号：US20240219231A1

公开(公告)日：2024-07-04

申请号：US18148564

申请日：2022-12-30

Applicant: Endress+Hauser Optical Analysis, Inc.

Inventor： Marc Winter ,  Joseph B. Slater

IPC: G01J3/02 ,  G01J3/18 ,  G02B6/02

CPC classification number: G01J3/0294 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/024 ,  G01J3/18 ,  G02B6/02295

Abstract: A photonic crystal waveguide for conveying light with an input end and an output end to supply for an electromagnetic spectrometer includes: an input end having a convex envelope of a cross-section of the waveguide at the input end, which envelope defines a circular shape or a shape of a regular polygon with n1 corners, wherein n1 is a natural number bigger than 3; an output end having a cross-section that defines a slit shape; and a plurality of photonic crystal fibers, wherein an arrangement of the plurality of photonic crystal fibers defines the cross-sections at the input and output ends.

公开(公告)号：US20240035891A1

公开(公告)日：2024-02-01

申请号：US18358105

申请日：2023-07-25

Applicant: Ivoclar Vivadent AG

Inventor： Jonas Reinhardt ,  Christian Niedrig

IPC: G01J3/50 ,  G01J3/02 ,  G01J3/12 ,  G01J3/42

CPC classification number: G01J3/508 ,  G01J3/024 ,  G01J3/0275 ,  G01J3/12 ,  G01J3/42 ,  G01J2003/1282

Abstract: A method for spatially resolved color determination, comprising the steps of projecting (S101) a first structured-light pattern having a first wavelength of light onto a dental object;
detecting (S102) a first spatially resolved optical parameter set based on the reflected or remitted first structured-light pattern; projecting (S103) a second structured-light pattern having a second wavelength of light onto the dental object; detecting (S104) a second spatially resolved optical parameter set based on the reflected or remitted second structured-light pattern; and calculating (S105) a third spatially resolved optical parameter set at a third wavelength of light based on the first and second spatially resolved optical parameter sets.

公开(公告)号：US09733123B2

公开(公告)日：2017-08-15

申请号：US15382419

申请日：2016-12-16

Applicant: Captain JRT LLC

Inventor： Eric Todd Marple ,  Kirk David Urmey

IPC: G02B6/36 ,  G01J3/02 ,  G02B6/38 ,  G02B6/42

CPC classification number: G01J3/0202 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0229 ,  G01J3/024 ,  G01J3/0289 ,  G02B6/3821 ,  G02B6/3825 ,  G02B6/3874 ,  G02B6/3887 ,  G02B6/3893 ,  G02B6/42

Abstract: A connector assembly is provided for coupling optical fibers to a spectrometer. The connector assembly includes a plate having a slit defined therein and a ferrule that secures end portions of the optical fibers therein. The ferrule includes a forward end having an aperture that receives the optical fibers. The connector assembly further includes a connector housing having an alignment mechanism with a plate recess dimensioned to receive the plate therein and a ferrule recess dimensioned to receive the forward end of the ferrule therein. The plate recess orients the plate and the ferrule recess orients the ferrule within the connector assembly that includes a spring for imparting a force urging the forward end of the ferrule into contact with the plate to minimize an air gap between the plate and the ferrule. The spring and the alignment mechanism maintain the ferrule in an x-y-z, rotation, and/or an angular orientation.

公开(公告)号：US20170176252A1

公开(公告)日：2017-06-22

申请号：US15382419

申请日：2016-12-16

Applicant: Captain JRT LLC

Inventor： Eric Todd Marple ,  Kirk David Urmey

IPC: G01J3/02 ,  G02B6/42 ,  G02B6/38

CPC classification number: G01J3/0202 ,  G01J3/0218 ,  G01J3/0221 ,  G01J3/0229 ,  G01J3/024 ,  G01J3/0289 ,  G02B6/3821 ,  G02B6/3825 ,  G02B6/3874 ,  G02B6/3887 ,  G02B6/3893 ,  G02B6/42

Abstract: A connector assembly is provided for coupling optical fibers to a spectrometer. The connector assembly includes a plate having a slit defined therein and a ferrule that secures end portions of the optical fibers therein. The ferrule includes a forward end having an aperture that receives the optical fibers. The connector assembly further includes a connector housing having an alignment mechanism with a plate recess dimensioned to receive the plate therein and a ferrule recess dimensioned to receive the forward end of the ferrule therein. The plate recess orients the plate and the ferrule recess orients the ferrule within the connector assembly that includes a spring for imparting a force urging the forward end of the ferrule into contact with the plate to minimize an air gap between the plate and the ferrule. The spring and the alignment mechanism maintain the ferrule in an x-y-z, rotation, and/or an angular orientation.

公开(公告)号：US09671564B2

公开(公告)日：2017-06-06

申请号：US14455235

申请日：2014-08-08

Applicant: Kaiser Optical Systems Inc.

Inventor： James M. Tedesco

IPC: G02B6/32 ,  G01N21/65 ,  G02B3/00 ,  G02B3/02 ,  G02B6/38 ,  G02B6/36 ,  G01J3/44

CPC classification number: G02B6/32 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0218 ,  G01J3/024 ,  G01J3/44 ,  G02B3/0087 ,  G02B3/02 ,  G02B6/322 ,  G02B6/3624 ,  G02B6/3869 ,  G02B6/4201

Abstract: A monolithic optical element and system is used for collimating or focusing laser light from or to optical fibers. The optical fiber terminates in a tip that directly abuts against the first surface of the optical element. The optical element may provide a collimation or focusing function depending upon whether the abutting fiber delivers light for collimation or receives focused light from a collimated beam. The optical element may be a standard or modified barrel or drum lens, with the first and second surfaces being convex curved surfaces having the same or different radii of curvature. The end of the optical element to which the fiber abuts may have a diameter to match the inner diameter of a ferrule for positioning the fiber. A pair of the elements may be used for collimation and focusing in a Raman probehead or other optical detection system.