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公开(公告)号:US20040090621A1
公开(公告)日:2004-05-13
申请号:US10471415
申请日:2003-09-11
Inventor: Robert Bennett , John Charles Clifford Day , Graham Mark Meadan
IPC: G01N023/00 , G01J003/00
CPC classification number: G01J3/44 , G01J3/02 , G01J3/0243 , G01J3/04 , G01N21/645 , G01N21/65 , G01N2021/6417 , G01N2021/656 , H01J37/228 , H01J2237/2808
Abstract: A spectroscopy method in which a sample is scanned without moving the sample. Light from the sample 16 is collected by a lens 14 and analysed at a spectrum analyser 28 before being focused onto a photodetector 32. Light from the focal point of the lens 14 is brought to a tight focus on the photodetector 32 whilst light from in front of or behind the focal point comes to a more diffuse focus. Light from the pixels on the photodetector 32 corresponding to the focal point of the lens 14 is processed, whilst light from pixels outside this region is ignored, thus forming a nullvirtual slitnull. The sample 16 is scanned in a vertical direction by moving the nullvirtual slitnull up and down, by changing the designated rows of pixels from which data is analysed. The sample is scanned in a horizontal direction by moving a vertical slit 24 in the light path in a horizontal direction.
Abstract translation: 在不移动样品的情况下扫描样品的光谱法。 来自样品16的光由透镜14收集并在聚焦到光电检测器32之前在光谱分析仪28处进行分析。从透镜14的焦点处的光被紧密地聚焦在光电检测器32上,同时来自前面的光 焦点之后的焦点变得更加漫长。 来自与透镜14的焦点对应的光检测器32上的像素的光被处理,同时忽略该区域外的像素的光,从而形成“虚拟狭缝”。 通过改变从其分析数据的指定行像素,通过上下移动“虚拟缝隙”来扫描样品16在垂直方向上。 通过沿水平方向移动光路中的垂直狭缝24,沿水平方向扫描样品。
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公开(公告)号:US06445451B1
公开(公告)日:2002-09-03
申请号:US09249943
申请日:1999-02-12
Applicant: Diarmaid H. Douglas-Hamilton , Thomas G. Kenny
Inventor: Diarmaid H. Douglas-Hamilton , Thomas G. Kenny
IPC: H04J1500
CPC classification number: G01J3/50 , G01J3/0243 , G01J3/501
Abstract: A cassette reader for detecting the status of stained samples is provided. The colorimeter includes one or more high power emitting diodes as the source of illuminating the sample. An elliptical mirror, with a central aperture to permit the light to penetrate on to the sample, directs the scattered light on to its focal point at a detector. The colorimeter includes a microprocessor which compares an output signal for the percent ratio value of the detected values of a sample and a standard sample. The colorimeter housing provides position sensors which allow the identification of the well being examined. Finally, the system is modified to measure cell motility by determining the ratio of motile sperms to total cell concentration.
Abstract translation: 提供了用于检测染色样品的状态的盒式读取器。 色度计包括一个或多个高功率发光二极管作为照明样品的源。 具有允许光穿透到样品的中心孔径的椭圆形反射镜将散射的光引导到检测器处的其焦点。 色度计包括微处理器,其比较了样品和标准样品的检测值的百分比值的输出信号。 色度计壳体提供位置传感器,其允许识别被检查的井。 最后,通过确定运动精子与总细胞浓度的比例来修改该系统以测量细胞运动性。
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公开(公告)号:US5305082A
公开(公告)日:1994-04-19
申请号:US819368
申请日:1992-01-08
Applicant: Georges G. Bret
Inventor: Georges G. Bret
CPC classification number: G01J3/02 , G01J3/0208 , G01J3/0221 , G01J3/0243 , G01J3/0291 , G01J3/2803 , G01J3/2823 , G01J2003/283
Abstract: A high resolution fast imaging spectrograph is disclosed which provides 400 spatial channels and 100 spectral channels of information. A collimating mirror (10) and a focusing mirror (12) face a plane diffraction grating (14), which is positioned at an acute angle to the perpendicular to the optic axis. An elongated slot (16) is cut through approximately the center of the grating allowing the light source (18) to pass through the slot and onto the collimating mirror. A turning mirror (20), which is placed at the focus of the focusing mirror and adjacent to the slot, directs radiation to a camera mirror (22), which focuses a final image outside the instrument enclosure onto a detector (24). The light source to the instrument is provided by an optical fiber ribbon. The detector will commonly be a CCD or CID 2-D detector, permitting the simultaneous measurement of spectral distribution of a spatial profile. The instrument requires no power input, has no moving parts, and is completely passive with no operating controls or adjustments. Also disclosed is a commercially significant means to utilize the high spatial resolution imaging spectrograph in earth science remote imaging applications through the utilization of a reflecting telescope connected to the spectrograph by means of an optical fiber ribbon.
Abstract translation: 公开了一种高分辨率快速成像光谱仪,其提供400个空间信道和100个光谱信道信道。 准直镜(10)和聚焦镜(12)面对平面衍射光栅(14),该平面衍射光栅位于与光轴垂直的锐角处。 细长槽(16)大致切开光栅的中心,允许光源(18)穿过狭槽并进入准直镜。 放置在聚焦镜的焦点并与狭缝相邻的转向镜(20)将辐射引导到照相机镜(22),照相镜将聚焦在仪器外壳外部的最终图像聚焦到检测器(24)上。 仪器的光源由光纤带提供。 检测器通常是CCD或CID 2-D检测器,允许同时测量空间分布的光谱分布。 仪器不需要电源输入,没有移动部件,完全被动,无需操作控制或调整。 还公开了通过利用通过光纤带连接到光谱仪的反射望远镜来利用地球科学远程成像应用中的高空间分辨率成像光谱仪的商业上重要的手段。
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公开(公告)号:US4538910A
公开(公告)日:1985-09-03
申请号:US431346
申请日:1982-09-30
Applicant: Walter M. Doyle
Inventor: Walter M. Doyle
CPC classification number: G01J3/453 , G01J3/021 , G01J3/0243
Abstract: A dual beam Fourier-type spectrometer is disclosed in which the collimated output beam of a Michelson type interferometer is divided (post-interferometer) by a reflector which (a) reflects the bulk of said beam to the sample and thereafter a first detector, but (b) transmits part of said beam (preferably through apertures in the reflector) directly to a second detector. The relatively small portion of said beam which is transmitted to the second detector preferably passes through a substantial number of very small apertures in the reflector which are spaced in such a way as to maximize the spatial identity of the beams reaching the first and second detectors.
Abstract translation: 公开了一种双波束傅里叶型光谱仪,其中迈克尔逊型干涉仪的准直输出光束由反射器分开(后干涉仪),反射器(a)将所述光束的体积反射到样品,然后将第一检测器反射,但是 (b)将所述梁的一部分(优选地通过反射器中的孔)直接传送到第二检测器。 传输到第二检测器的所述光束的相对小的部分优选地通过反射器中的大量非常小的孔,间隔开的方式使得到达第一和第二检测器的光束的空间特性最大化。
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公开(公告)号:US3822098A
公开(公告)日:1974-07-02
申请号:US35651173
申请日:1973-05-02
Applicant: MC DONNELL DOUGLAS CORP
CPC classification number: G01N21/21 , G01J3/0243 , G01J3/36 , G01J3/447 , G01J9/00
Abstract: A multispectral sensor including associated detection apparatus which are able to detect and identify radiations scattered from an object or substance, and particularly depolarized as distinguished from polarized radiations, which depolarized radiations are due to volume scattering characteristics, not surface scattering characteristics, and which enable the object or substance to be uniquely identified as to its material composition, color, density and other similar inherent characteristics as distinguished from surface characteristics, physical location and physical orientation. The present multispectral sensor can use laser means as well as other means for generating illumination or radiation.
Abstract translation: 一种多光谱传感器,包括相关的检测装置,其能够检测和识别从物体或物质散射的辐射,并且特别是去偏振的偏振辐射区别于该偏振辐射,这是由于体积散射特性而不是表面散射特性, 物体或物质被独特地识别为与表面特性,物理位置和物理取向不同的其材料组成,颜色,密度和其它相似的固有特性。 本发明的多光谱传感器可以使用激光装置以及用于产生照明或辐射的其它装置。
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公开(公告)号:US3363525A
公开(公告)日:1968-01-16
申请号:US34549464
申请日:1964-02-17
Applicant: BECKMAN & WHITLEY INC
Inventor: TEEPLE JR LAWRENCE R
IPC: G01J3/40
CPC classification number: G01J3/40 , G01J3/021 , G01J3/0243 , G01J3/0264
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公开(公告)号:US09915562B2
公开(公告)日:2018-03-13
申请号:US15235401
申请日:2016-08-12
Applicant: ABB, Inc.
Inventor: John Brian Leen , Nathan E. Bramall
IPC: G01J5/02 , G01J3/02 , G01J3/42 , G01N21/3504
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.
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公开(公告)号:US09829380B2
公开(公告)日:2017-11-28
申请号:US14427481
申请日:2014-06-20
Inventor: Tatsuo Itoh , Koichi Kusukame , Aki Yoneda
IPC: G01J4/00 , G01J3/46 , G01J3/427 , G01N21/359 , G01J3/02 , G01J3/433 , G01J3/10 , G01J3/28 , G01J3/32 , G01J3/42 , G01J3/06 , G01J1/42
CPC classification number: G01J3/427 , G01J3/0208 , G01J3/021 , G01J3/0224 , G01J3/0237 , G01J3/0243 , G01J3/0278 , G01J3/0289 , G01J3/10 , G01J3/2803 , G01J3/32 , G01J3/42 , G01J3/433 , G01J2001/4242 , G01J2003/064 , G01J2003/102 , G01J2003/104 , G01J2003/106 , G01N21/359
Abstract: A light radiating portion radiates light with wavelength λ1 having predetermined absorptivity for an object and light with wavelength λ2 having smaller absorptivity for the object than the wavelength λ1, to a target, so as to scan in 2-dimensional directions. A light receiving portion receives scattered lights reflected by the target based on light with wavelength λ1 and light with wavelength λ2. A measuring portion generates information used for detection of the object at the target, based on difference between the two scattered lights with wavelength λ1 and wavelength λ2 received by the light receiving portion. An output portion outputs whether or not the object is present at the target, by 2-dimensional area information, based on scanning by the light radiating portion and information generated by the measuring portion.
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公开(公告)号:US20170153432A1
公开(公告)日:2017-06-01
申请号:US15363494
申请日:2016-11-29
Applicant: CANON KABUSHIKI KAISHA
Inventor: Naoki Kohara , Akira Yamamoto
IPC: G02B21/00
CPC classification number: G02B21/0032 , G01J3/021 , G01J3/0243 , G02B21/0052 , G02B21/0056 , G02B21/0064 , G02B21/0076
Abstract: A scanning microscope includes a scanning unit that causes irradiation light emitted by a light source to scan a sample, an optical system that guides the emitted light that has passed through the scanning unit to the sample, an isolation unit that includes a transmissive portion that enables the irradiation light to pass the transmissive portion and a reflective portion that reflects at least some of light that is included in emitted light generated from the sample as a result of the irradiation light being radiated to the sample and that has passed through the optical system and the scanning unit, and a detection unit that detects the emitted light that has passed through the isolation unit. The isolation unit is disposed in an optical path of the irradiation light between the light source and the scanning unit.
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公开(公告)号:US09599507B2
公开(公告)日:2017-03-21
申请号:US14766068
申请日:2014-02-05
Applicant: Rafal Pawluczyk , Paul Fournier
Inventor: Rafal Pawluczyk , Paul Fournier
CPC classification number: G01J3/0218 , G01J3/0208 , G01J3/021 , G01J3/0221 , G01J3/0243 , G01J3/2823 , G01J3/44 , G01J3/4412 , G01N21/65 , G01N2021/4742 , G01N2021/656
Abstract: A fiber optic probe assembly is provided. The probe comprises a first optical system and a second optical system, a delivery light guide comprising one or more than one delivery optical fiber for transmitting excitation radiation from a radiation source disposed at a proximal end of the light guide to the first optical system. The first optical system comprising one or more than one first optical element for forming a substantially collimated illumination beam from the excitation radiation. An optically opaque tubular sleeve is fitted over the first optical system to optically isolate the first optical system and the delivery light guide from the second optical system. The second optical system comprising one or more than one second optical element for gathering optical radiation scattered from a sample and forming the optical radiation into a collection beam. A collection light guide comprising one or more than one collection optical fiber receives the collection beam and transmits the collection beam to an analyzer. The first and second optical systems are disposed within a housing so that an emission cone of the first optical system and an acceptance cone of the second optical system substantially overlap. A spectroscopic measurement system comprising the optic fiber probe is also provided.
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