公开(公告)号：US20010038451A1

公开(公告)日：2001-11-08

申请号：US09877847

申请日：2001-06-08

Inventor： Wayne D. Jung ,  Russell W. Jung ,  Alan R. Loudermilk

IPC: G01J003/18 ,  G01J003/28

CPC classification number: G01J3/51 ,  G01J1/0242 ,  G01J1/04 ,  G01J1/06 ,  G01J3/02 ,  G01J3/0218 ,  G01J3/0229 ,  G01J3/0254 ,  G01J3/0259 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0278 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/2803 ,  G01J3/508 ,  G01J3/513

Abstract: Optical characteristic measuring systems and methods such as for determining the color or other optical characteristics of teeth are disclosed. Perimeter receiver fiber optics preferably are spaced apart from a source fiber optic and receive light from the surface of the object/tooth being measured. Light from the perimeter fiber optics pass to a variety of filters. The system utilizes the perimeter receiver fiber optics to determine information regarding the height and angle of the probe with respect to the object/tooth being measured. Under processor control, the optical characteristics measurement may be made at a predetermined height and angle. Various color spectral photometer arrangements are disclosed. Translucency, fluorescence, gloss and/or surface texture data also may be obtained. Audio feedback may be provided to guide operator use of the system. The probe may have a removable or shielded tip for contamination prevention. A method of producing dental prostheses based on measured data also is disclosed. Measured data also may be stored and/or organized as part of a patient data base. Such methods and implements may be desirably utilized for purposes of detecting and preventing counterfeiting or the like. Preferably, a two stage spectral separation is utilized, preferably utilizing a diffraction grating and interference filters.

Abstract translation: 公开了用于确定牙齿的颜色或其他光学特性的光学特性测量系统和方法。 周边接收机光纤优选地与源光纤间隔开，并且从被测量的物体/齿的表面接收光。 来自周边光纤的光通过各种滤光片。 该系统利用周边接收器光纤来确定关于探头相对于被测量物体/齿的高度和角度的信息。 在处理器控制下，可以以预定的高度和角度进行光学特性测量。 公开了各种颜色光谱光度计布置。 还可以获得半透明度，荧光，光泽度和/或表面纹理数据。 可以提供音频反馈以指导操作者使用该系统。 探头可能具有可移除或屏蔽的尖端，以防止污染。 还公开了一种基于测量数据生产牙科假体的方法。 测量的数据也可以存储和/或组织为患者数据库的一部分。 为了检测和防止伪造等目的，可以期望地使用这些方法和装置。 优选地，利用两级光谱分离，优选利用衍射光栅和干涉滤光器。

公开(公告)号：US6020959A

公开(公告)日：2000-02-01

申请号：US172127

申请日：1998-10-14

Applicant: Kenji Imura

Inventor： Kenji Imura

IPC: G01J3/443 ,  G01J3/02 ,  G01J3/42 ,  G01J3/44 ,  G01N21/27 ,  G01N21/64

CPC classification number: G01J3/4406 ,  G01J3/02 ,  G01J3/0254 ,  G01J3/027 ,  G01N21/6428 ,  G01N21/645 ,  G01N2021/6419 ,  G01N2021/6421 ,  G01N21/276 ,  G01N2201/065

Abstract: An apparatus for measuring a spectral characteristic of a fluorescent sample, being provided with: a first illuminator for emitting a beam in a wavelength range including the ultraviolet spectrum; a second illuminator for emitting a beam in a wavelength range longer than a first cutoff wavelength; a spectral radiance factor measuring device for measuring first and second total spectral radiance factors of a fluorescent sample by illuminating the fluorescent sample by the first illumination device and second illumination device, respectively; a memory for storing weight coefficients for weighting first and second total spectral radiance factors; and a calculator for calculating a total spectral radiance factor of the fluorescent sample in accordance with the following equation using measured first and second total spectral radiance factors and a weight coefficient:B.sub.t (.lambda.)=A(.lambda.).multidot.Bt.sub.1 (.lambda.)+{1-A(.lambda.)}.multidot.Bt.sub.2 (.lambda.)wherein:Bt(.lambda.): Total spectral radiance factor of the fluorescent sampleA(.lambda.): Weight coefficientBt.sub.1 (.lambda.): First total spectral radiance factorBt.sub.2 (.lambda.): Second total spectral radiance factor.

Abstract translation: 一种用于测量荧光样品的光谱特性的装置，设置有：用于发射包括紫外光谱的波长范围内的光束的第一照明器; 用于发射长于第一截止波长的波长范围的光束的第二照明器; 光谱辐射因子测量装置，用于分别通过由第一照明装置和第二照明装置照射荧光样品来测量荧光样品的第一和第二总光谱辐射系数; 用于存储用于加权第一和第二总光谱辐射因子的权重系数的存储器; 以及计算器，用于使用测量的第一和第二总光谱辐射系数和权重系数根据以下等式计算荧光样品的总光谱辐射系数：Bt（λ）= A（λ）xBt1（λ）+ {1 -A（λ）} xBt2（λ）其中：Bt（λ）：荧光样品的总光谱辐射系数A（λ）：重量系数Bt1（λ）：第一总光谱辐射系数Bt2（λ）：第二总光谱 辐射因子

公开(公告)号：US5823950A

公开(公告)日：1998-10-20

申请号：US745474

申请日：1996-11-12

Applicant: Mohamed Kheir Diab ,  Massi E. Kiani ,  Charles Robert Ragsdale ,  James M. Lepper, Jr.

Inventor： Mohamed Kheir Diab ,  Massi E. Kiani ,  Charles Robert Ragsdale ,  James M. Lepper, Jr.

IPC: A61B5/00 ,  A61B5/145 ,  A61B5/1455 ,  A61B5/1495 ,  G01J3/10 ,  G01J3/28 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01N21/39 ,  G01N21/64 ,  G05F3/08 ,  H05B37/02

CPC classification number: A61B5/1495 ,  A61B5/0205 ,  A61B5/14552 ,  A61B5/6826 ,  A61B5/6838 ,  G01J3/02 ,  G01J3/0254 ,  G01J3/027 ,  G01J3/0275 ,  G01J3/0291 ,  G01J3/10 ,  G01N21/255 ,  G01N21/274 ,  G01N21/31 ,  G01N21/3151 ,  G01N21/39 ,  A61B2562/08 ,  A61B5/02427 ,  G01J2003/2866 ,  G01N2021/3144 ,  G01N2201/0627

Abstract: The method and apparatus of the present invention provides a system wherein light-emitting diodes (LEDs) can be tuned within a given range by selecting their operating drive current in order to obtain a precise wavelength. The present invention further provides a manner in which to calibrate and utilize an LED probe, such that the shift in wavelength for a known change in drive current is a known quantity. In general, the principle of wavelength shift for current drive changes for LEDs is utilized in order to allow better calibration and added flexibility in the use of LED sensors, particularly in applications when the precise wavelength is needed in order to obtain accurate measurements. The present invention also provides a system in which it is not necessary to know precise wavelengths of LEDs where precise wavelengths were needed in the past. Finally, the present invention provides a method and apparatus for determining the operating wavelength of a light emitting element such as a light emitting diode.

公开(公告)号：US5268749A

公开(公告)日：1993-12-07

申请号：US736467

申请日：1991-07-26

Applicant: William L. Weber ,  Harold Van Aken

Inventor： William L. Weber ,  Harold Van Aken

IPC: G01N21/25 ,  G01N21/47 ,  G02B5/02 ,  G02B13/24

CPC classification number: G01J3/10 ,  G01J3/02 ,  G01J3/0205 ,  G01J3/0208 ,  G01J3/0254 ,  G01J3/0291 ,  G01N21/255 ,  G01N21/474 ,  G02B13/24 ,  G01N2201/0622 ,  G02B5/02

Abstract: A conical illuminator for use in colorimetry, spectrophotometry, densitometry or sensitometry. In a preferred embodiment, light from a source such as a pulsed xenon lamp is integrated within a integrating chamber. The light source may be placed in a second integrating chamber adjacent to the aforementioned integrating chamber. Alternatively, the lamp may be placed directly within the integrating chamber. The light is emitted through an exit port and conformed to a conical configuration, according to a pre-selected standard, via an annular stop. An imaging optic relays the conformed light uniformly onto a sample plane. The annular stop is placed at or near the tangential focal length of the imaging optic. The annular stop may be coated with a light absorbing coating, or can be formed with a grooved or mirrored surface. Alternatively, in lieu of an integrating chamber, a diffuser may be employed for homogenizing the light. Various configurations of the imaging optic and annular stop are possible.

公开(公告)号：US3764364A

公开(公告)日：1973-10-09

申请号：US3764364D

申请日：1968-07-01

Applicant: PPG INDUSTRIES INC

Inventor： SEINER J

IPC: B05D5/06 ,  C09D127/12 ,  G01N21/47 ,  B44D1/094 ,  G01J1/04 ,  G01N21/48

CPC classification number: G01N21/4785 ,  C09D127/12 ,  G01J3/0254

Abstract: FLUORINATED ALIPHATIC LONG CHAIN ADDITION POLYMERS COMPRISED OF AT LEAST ONE MONOMER HAVING AT LEAST ONE FLUORINE ATOM ATTACHED TO A CHAIN CARBON ATOM ARE USED IN VARIOUS ENVIRONMENTS FOR THEIR ABILITY TO REFLECT A HIGH PERCENTAGE OF INCIDENT LIGHT HAVING A WAVE LENGTH IN THE 2400 TO 8000 ANGSTROM REGION . THESE REFLECTANCE POLYMERS MAY BE IN PRESSED POWDER FORM OR IN FILM FORM AND THUS ARE ESPECIALLY APPLICABLE AS REFLECTANE STANDARDS AND REFLECTANE COATINGS PARTICULARLY IN LIGHT INTEGRATING SPHERES OF SPECTROPHOTOMERTERS.

公开(公告)号：US20190234799A1

公开(公告)日：2019-08-01

申请号：US16311627

申请日：2017-06-26

Applicant: SICPA HOLDING SA

Inventor： Jean-Luc DORIER ,  Xavier-Cédric RAEMY ,  Todor DINOEV ,  Edmund HALASZ

IPC: G01J3/28 ,  G01J3/02 ,  G01J3/18

CPC classification number: G01J3/2823 ,  G01J3/0229 ,  G01J3/0254 ,  G01J3/1838 ,  G07D7/1205 ,  G07D7/205

Abstract: An imaging system (200) for generating a measure of authenticity of an object (10) comprises a dispersive imaging arrangement (30) and an image sensor arrangement (60). They are positioned so that, when electromagnetic radiation (20) from the object (10) illuminates the dispersive imaging arrangement (30), the electromagnetic radiation is dispersed and imaged by the image sensor arrangement (60). The imaging system (200) is configured to then generate a measure of authenticity of the object (10) depending at least on a relation between the imaged dispersed electromagnetic radiation and reference spectral information. The invention also relates to imaging methods, computer programs, computer program products, and storage mediums.

公开(公告)号：US20190041323A1

公开(公告)日：2019-02-07

申请号：US15670550

申请日：2017-08-07

Applicant: The Boeing Company

Inventor： Mark D. Rogers ,  Loyal Bruce Shawgo ,  Jeffery Thomas Murphy

IPC: G01N21/359 ,  G01N21/3563 ,  G01N21/47 ,  G01N21/85 ,  G01J3/50 ,  G01J3/51

CPC classification number: G01N21/359 ,  G01J3/0232 ,  G01J3/0254 ,  G01J3/08 ,  G01J3/28 ,  G01J3/42 ,  G01J3/506 ,  G01J3/513 ,  G01N21/3563 ,  G01N21/474 ,  G01N21/85

Abstract: Systems and methods are provided for measuring spectral hemispherical reflectance. One embodiment is a system that includes a laser that emits a beam of light, and an optical chopper disposed between the laser and a sample. The chopper blocks the beam while the chopper is at a first angle of rotation, redirects the beam along a reference path while the chopper is at a second angle of rotation, and permits the beam to follow a sample path through the chopper and strike the sample while the chopper is at a third angle of rotation. The system also includes a hollow sphere that defines a slot through which the sample path and reference path enter the sphere. The hollow sphere includes a spectral hemispherical reflectance detector, a mount that receives the sample at the sphere, and an actuator that rotates the sphere about an axis that intersects the sample.

公开(公告)号：US20170067777A1

公开(公告)日：2017-03-09

申请号：US15093184

申请日：2016-04-07

Applicant: BlueLight Analytics, Inc.

Inventor： Daniel LABRIE ,  Ivan KOSTYLEV ,  Chris FELIX

IPC: G01J1/04 ,  G01J1/02

CPC classification number: G01J1/0474 ,  A61C19/003 ,  G01J1/0204 ,  G01J1/0219 ,  G01J1/0271 ,  G01J1/0425 ,  G01J1/0488 ,  G01J3/0205 ,  G01J3/0218 ,  G01J3/0254 ,  G01J3/0256 ,  G01J3/0264 ,  G01J2001/0481 ,  G01J2001/4247 ,  G01M11/0235 ,  G01N21/55 ,  G02B5/02 ,  G02B5/021 ,  G02B5/0284

Abstract: The invention features devices and methods for collecting and measuring light from external light sources. In general, the devices of the invention feature a light diffusing element, e.g., as a component of a light collector, connected by a light conducting conduit, e.g., a fiber optic cable, to a light measuring device, e.g., a spectrometer. This light diffusing element allows, e.g., for substantially uniform light diffusion across its surface and thus accurate measurements, while permitting the total footprint of the device to remain relatively small and portable. This light diffusing element also allows flexibility in scaling of the device to permit use in a wide range of applications.

Abstract translation: 本发明的特征在于用于收集和测量来自外部光源的光的装置和方法。 通常，本发明的装置的特征在于光漫射元件，例如作为光收集器的部件，通过诸如光纤电缆的导光导管连接到诸如光谱仪的光测量装置。 该光漫射元件允许例如在其表面上实质上均匀的光扩散，从而允许精确的测量，同时允许设备的总占地面积保持相对较小和便携。 该光散射元件还允许设备的缩放的灵活性，以允许在广泛的应用中使用。

公开(公告)号：US09435747B2

公开(公告)日：2016-09-06

申请号：US14413268

申请日：2013-01-16

Applicant: BIAOQI ELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Guangjun Song ,  Xiangli Zheng ,  Jianfeng Wu ,  Ling Gao

IPC: G01N21/00 ,  G01N21/87 ,  G01N21/55

CPC classification number: G01N21/87 ,  G01J3/0254 ,  G01N21/55 ,  G01N2201/061 ,  G01N2201/0633 ,  G01N2201/0636 ,  G01N2201/065

Abstract: A reflectance spectroscopy measuring and sampling system for gemstone testing is disclosed. The system includes a first light source (1), a second light source (2), a light filtering element, an integrating sphere (S), an optical fiber (9), a spectroscopic detection module (10), an analog-digital conversion module (11) and a data processing terminal (12), wherein the integrating sphere (S) is provided with an entrance port, a sampling opening (6) and a reflected light exit port (7). A reflectance spectroscopy measuring and sampling method for gemstone testing is also disclosed. The system and the method have an excellent performance and can be widely used in the gemstone identification.

Abstract translation: 公开了一种用于宝石测试的反射光谱测量和采样系统。 该系统包括第一光源（1），第二光源（2），滤光元件，积分球（S），光纤（9），光谱检测模块（10），模拟数字 转换模块（11）和数据处理终端（12），其中积分球（S）设置有入口，采样口（6）和反射光出口（7）。 还公开了用于宝石测试的反射光谱测量和采样方法。 该系统和方法具有优异的性能，可广泛应用于宝石鉴定。

公开(公告)号：US09423339B2

公开(公告)日：2016-08-23

申请号：US14764805

申请日：2013-09-17

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Shigeru Eura ,  Kengo Suzuki ,  Kenichiro Ikemura ,  Kazuya Iguchi

IPC: G01J1/04 ,  G01N21/31 ,  G01J3/44 ,  G01N21/64 ,  G01J3/02 ,  G01J3/42

CPC classification number: G01N21/31 ,  G01J3/0254 ,  G01J3/0291 ,  G01J3/42 ,  G01J3/4406 ,  G01N21/645 ,  G01N21/6489 ,  G01N2021/6469 ,  G01N2021/6482 ,  G01N2021/6491 ,  G01N2201/062 ,  G01N2201/065 ,  G01N2201/12

Abstract: A spectral measurement apparatus includes a light source for generating a excitation light; an integrator having an input opening portion and an output opening portion; a housing portion arranged in the integrator and for housing a sample; an incidence optical system for making the excitation light incident to the sample; a photodetector for detecting a light to be measured output from the output opening portion; and an analysis means for calculating a light absorptance of the sample, based on a detection value detected by the photodetector, and an irradiation area with the excitation light at a position of incidence to the sample is set larger than an irradiated area of the sample, and the analysis means performs an area ratio correction regarding the irradiation area with the excitation light and the irradiated area of the sample, with respect to the light absorptance calculated.

Abstract translation: 光谱测量装置包括用于产生激发光的光源; 积分器，具有输入开口部分和输出开口部分; 布置在所述积分器中并用于容纳样品的壳体部分; 用于使激发光入射到样品的入射光学系统; 用于检测从所述输出开口部分输出的待测光的光电检测器; 以及分析装置，用于基于由所述光电检测器检测的检测值来计算样品的光吸收率，并且将入射到所述样品的位置处的激发光的照射面积设定为大于所述样品的照射面积， 并且分析装置相对于计算的光吸收率执行关于具有激发光的照射区域和样品的照射面积的面积比率校正。