公开(公告)号：US06757060B2

公开(公告)日：2004-06-29

申请号：US10350499

申请日：2003-01-24

申请人： Kevin Davis ,  Joseph B. Slater

发明人： Kevin Davis ,  Joseph B. Slater

IPC分类号： G01J344

CPC分类号： G01N21/65 ,  G01N21/645

摘要： Disclosed is a method of positioning a focused image within a sampled medium in an optical measurement probe of the type wherein a focused sampling image is transmitted through a window having a surface facing a sampled medium. A test medium is measured, preferably through the window, and the magnitude of an optical signal associated with the test medium is then compared to the magnitude of an optical signal associated with the window, and the result of the comparison is used to position the focused image. Typically, the magnitudes of optical signals are representative or Raman scattering or another wavelength-selective radiative sampling process such as fluorescence detection. The method is not limited in terms of window composition, and is compatible with sapphire windows commonly used in industry. Nor is the invention limited in terms of test medium though, in the preferred embodiment a fluid hydrocarbon such as isopropyl alcohol is used.

摘要翻译： 公开了一种将聚焦图像定位在采样介质中的光学测量探针中的方法，其中聚焦采样图像通过具有面向采样介质的表面的窗口传输。 最好通过窗口测量测试介质，然后将与测试介质相关联的光学信号的大小与与窗口相关联的光学信号的幅度进行比较，并且比较结果用于定位聚焦 图片。 通常，光信号的大小是代表性的或拉曼散射或另一种波长选择性辐射采样过程，例如荧光检测。 该方法不限于窗口组成，并且与工业中通常使用的蓝宝石窗口兼容。 本发明也不限于测试介质，尽管在优选实施方案中使用流化烃如异丙醇。

公开(公告)号：US08824042B2

公开(公告)日：2014-09-02

申请号：US13564461

申请日：2012-08-01

申请人： James M. Tedesco ,  Joseph B. Slater

发明人： James M. Tedesco ,  Joseph B. Slater

IPC分类号： H01S3/30 ,  G02B5/10

CPC分类号： G01N21/65 ,  G01J3/021 ,  G01J3/44 ,  H01S3/08 ,  H01S3/08095 ,  H01S3/305 ,  H01S3/307

摘要： Raman signal amplification apparatus comprises an ellipsoidal reflector providing a first real focus f1, and second real or virtual focus f2, both foci being situated within a sample volume. When an input laser excitation beam having an initial numerical aperture (NA) is focused onto one of the foci, the beam is reflected by the reflector and refocused onto alternating foci, such that the NA of the reflected optical path progressively increases for higher efficiency collection of Raman emissions from the multiple foci. The ellipsoidal reflector may be a half section providing a single real focus f1, with a flat reflector producing a mirror image of the ellipsoidal reflector, such that f2 is a virtual focus occupying the same point as f1. Alternatively, the ellipsoidal reflector may have a first half section with a first real focus f1 and a second half section with a second real focus f2.

摘要翻译： 拉曼信号放大装置包括提供第一实际焦点f1的椭球反射器和第二实际或虚拟焦点f2，两个焦点位于样本体积内。 当具有初始数值孔径（NA）的输入激光激发光束聚焦到焦点之一时，光束被反射器反射并重新聚焦到交替的焦点上，使得反射光路的NA逐渐增加以获得更高的效率 的多焦点的拉曼散射。 椭圆反射器可以是提供单个实际焦点f1的半部分，平面反射器产生椭圆反射体的镜像，使得f2是与f1相同的点。 或者，椭球反射器可以具有带有第一实际焦点f1的第一半部分和具有第二实心f2的第二半部分。

公开(公告)号：US07859660B2

公开(公告)日：2010-12-28

申请号：US10101798

申请日：2002-03-19

申请人： Joseph B. Slater

发明人： Joseph B. Slater

IPC分类号： G01J3/44 ,  G01J3/00 ,  G02C7/10

CPC分类号： A61F9/008 ,  A61B2018/2025 ,  A61B2090/049 ,  B23K26/702

摘要： Indicator light apparatus and methods associated with a laser beam having a primary wavelength enable an operator to see the indicator while wearing protective eyewear tuned to the primary wavelength. The apparatus includes a source of indicator light other than the primary wavelength, a first optical element for co-injecting the indicator light into the laser beam to form a co-propagating beam, and an optical or physical configuration enabling an operator to view light from the co-propagating beam. The first optical element may be some form of beam splitter or combiner, and the configuration enabling an operator to view light from the co-propagating beam uses a diffuser upon which the co-propagating beam impinges. The indicator light is preferably derived from an inexpensive source, such as a diode laser operating in the 670-690 nm range. The invention is useful in many different environments, including stimulate emission systems, wherein one or more optical elements are used to direct the laser beam onto a sample to stimulate an optical emission therefrom. The stimulated emission may be representative of a Raman or fluorescence spectrum, for example.

摘要翻译： 与具有主波长的激光束相关联的指示灯装置和方法使得操作者能够在佩戴被调整到主波长的保护眼镜的同时看到指示器。 该装置包括除主波长之外的指示灯光源，用于将指示灯共同注入激光束以形成共同传播光束的第一光学元件，以及使得操作者能够观察来自 共同传播的光束。 第一光学元件可以是某种形式的分束器或组合器，并且使得操作者能够从共同传播的光束中观察光的结构使用共同传播的光束撞击的扩散器。 指示灯优选地来自廉价的源，例如在670-690nm范围内工作的二极管激光器。 本发明在许多不同的环境中是有用的，包括刺激发射系统，其中一个或多个光学元件用于将激光束引导到样品上以刺激其发射。 例如，受激发射可以代表拉曼或荧光光谱。

公开(公告)号：US07692786B2

公开(公告)日：2010-04-06

申请号：US11873718

申请日：2007-10-17

申请人： James M. Tedesco ,  Joseph B. Slater

发明人： James M. Tedesco ,  Joseph B. Slater

IPC分类号： G01J3/44 ,  G01N21/65

CPC分类号： G01J3/44 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0227 ,  G01J3/0262

摘要： Raman measurement apparatus optimized for gaseous and other low-concentration samples includes a focusing objective that uses only first-surface mirrors instead of lenses, thereby dramatically reducing background noise. In the preferred embodiment, the focusing and collimation functions performed by the objective section are performed by an off-axis parabolic mirror. A spherical first-surface mirror opposing the parabolic mirror re-images the counter-propagating beam back through the same focus for re-collimation by the parabolic mirror. A probe-head section operative to generate the counter-propagating beam has substrates and surfaces arranged such that the excitation beam does not pass through any substrates after it is filtered by the bandpass coating, thereby further decreasing background signals. Additionally, when the objective section includes the opposing spherical mirror, the excitation beam is collected substantially in its entirety and neutralized out of the collection path by the probe-head section.

摘要翻译： 针对气态和其他低浓度样品优化的拉曼测量装置包括仅使用第一表面镜而不是透镜的聚焦目标，从而显着降低背景噪声。 在优选实施例中，由目标部分执行的聚焦和准直功能由离轴抛物面镜执行。 与抛物面镜相对的球形第一表面镜将通过相同的焦点重新对反向传播的光束进行反像，以通过抛物面反射镜进行再准直。 可操作以产生反向传播光束的探针头部分具有布置成使得激发光束在被带通涂层过滤之后不通过任何基底的基板和表面，从而进一步减小背景信号。 此外，当目标部分包括相对的球面镜时，基本上整体地收集激发光束，并且通过探头部被中心到收集路径之外。

公开(公告)号：US06870695B2

公开(公告)日：2005-03-22

申请号：US10734058

申请日：2003-12-11

申请人： Joseph B. Slater ,  Kevin L. Davis

发明人： Joseph B. Slater ,  Kevin L. Davis

IPC分类号： G02B1/02 ,  G02B27/00 ,  G02B5/00

CPC分类号： G02B1/02 ,  G02B27/0025

摘要： An optical configuration suited to the monitoring of a process flow through the wall of a containment vessel for producing a high-quality, high-NA sample focus and reduced residual positive spherical aberration. The invention includes an optical path with a window extending through, and sealed to, the wall of the containment vessel, and an optical surface disposed in the optical path associated with minimizing aberration, increasing numerical aperture, or both. The window has a surface facing into the process flow and a surface facing away from the process flow and, the surface facing away from the process flow is associated with minimizing aberration or increasing numerical aperture. A lens is disposed outside the containment vessel and in the optical path, with the surface of the window facing the lens being substantially spherical. With such an arrangement, the light rays of the optical path are generally normal to the surface of the window facing the lens.

摘要翻译： 适用于监测通过安全壳的壁的工艺流动的光学配置，用于产生高质量，高NA样品聚焦并减少残余正球面像差。 本发明包括具有延伸穿过并密封到容纳容器的壁的窗口的光路，以及设置在与最小化像差，增加数值孔径或两者相关联的光路中的光学表面。 窗口具有面向工艺流程的表面和背离工艺流程的表面，并且背离工艺流程的表面与最小化像差或增加数值孔径相关联。 透镜设置在容纳容器的外部，并且在光路中，窗口的面向透镜的表面基本上是球形的。 通过这种布置，光路的光线通常垂直于面向透镜的窗口的表面。

公开(公告)号：US06317533B1

公开(公告)日：2001-11-13

申请号：US09441684

申请日：1999-11-16

申请人： Joseph B. Slater ,  Eric Ferree ,  Dane Barlow

发明人： Joseph B. Slater ,  Eric Ferree ,  Dane Barlow

IPC分类号： G02B626

CPC分类号： G02B6/3504 ,  G02B6/3885 ,  G02F1/33

摘要： In an improved optical switch, light from an input optical fiber is directed to one of a plurality of output optical fibers on a selective basis. The output fibers are contained in a bundle, preferably within a removable connector, thereby easing removal and maintenance. The input fiber also preferably forms pair of a bundle within a removable connector. The means for selectively directing the light from the end of the input fiber to the end of one of a plurality of the output fibers may include a pivot upon which at least the input optical fiber is mounted, or an electro-optic Bragg cell without moving parts. One or more lenses are preferably used between the end of the input optical fiber and the ends of the output fibers to assist in directing the light. A preferred arrangement incorporates two lenses, positioned so that the end of the output fiber and the end of a selected input fiber are each located at the focal point of one of the lenses.

摘要翻译： 在改进的光开关中，来自输入光纤的光被选择性地引导到多个输出光纤中的一个。 输出纤维被包含在束中，优选地在可移除的连接器内，从而减轻了移除和维护。 输入光纤还优选地在可移除连接器内形成一对束。 用于选择性地将光从输入光纤的端部引导到多个输出光纤中的一个的端部的装置可以包括至少安装输入光纤的枢轴或者不移动的电光布拉格电池 部分。 优选地，在输入光纤的端部和输出光纤的端部之间使用一个或多个透镜，以帮助引导光。 优选的布置包括两个透镜，其被定位成使得输出光纤的端部和所选择的输入光纤的端部各自位于一个透镜的焦点处。

公开(公告)号：US06259517B1

公开(公告)日：2001-07-10

申请号：US09289442

申请日：1999-04-09

申请人： James M. Tedesco ,  Joseph B. Slater ,  Dane D. Barlow

发明人： James M. Tedesco ,  Joseph B. Slater ,  Dane D. Barlow

IPC分类号： G01N2100

CPC分类号： G01M11/3109 ,  G01M11/3118

摘要： An optical-fiber breakage detection system continuously monitors the integrity of a laser-guiding fiber, whether the laser itself is on or off. If an interruption is detected, the system may cut off, lock out, or reduce laser power, as appropriate. An optical element such as a beamsplitter is used to introduce an optical test signal into one end of the fiber so that the signal is carried by the fiber to the other end where the test signal is detected and employed to perform a desired function. In the preferred embodiment, the test signal is modulated and encoded to minimize false shut-downs. The source of the optical test signal is preferably disposed at the first location and carried by a second fiber to the remote location, enabling the test signal to be compared directly to the test signal as detected. The system is useful in a variety of applications, including systems of the type wherein the laser energy is used to induce a spectral emission from a sample disposed at the remote location, as in Raman or fluorescence detection. In such a configuration one or more additional fibers may be used to carry the spectral emission back to the first location, for example, for analysis purposes.

摘要翻译： 光纤断裂检测系统连续监测激光引导光纤的完整性，无论激光器本身是打开还是关闭。 如果检测到中断，系统可能会切断，锁定或降低激光功率。 使用诸如分束器的光学元件将光学测试信号引入光纤的一端，使得信号由光纤承载到测试信号被检测并用于执行所需功能的另一端。 在优选实施例中，测试信号被调制和编码以最小化假关闭。 光学测试信号的来源优选地设置在第一位置并由第二光纤携带到远程位置，使测试信号能够被直接与检测到的测试信号进行比较。 该系统在各种应用中是有用的，包括其中激光能量用于从设置在远处的样品中诱导光谱发射的系统，如在拉曼或荧光检测中。 在这种配置中，例如为了分析目的，可以使用一个或多个附加光纤将光谱发射传送回第一位置。

公开(公告)号：US5974211A

公开(公告)日：1999-10-26

申请号：US19774

申请日：1998-02-06

申请人： Joseph B. Slater

发明人： Joseph B. Slater

IPC分类号： G02B6/32

CPC分类号： G02B6/32

摘要： A fiber-optic probe uses imaging optics between the remote ends of the excitation and collection fibers and the sample under investigation to enhance working distance and efficiency. In one embodiment a plurality of collection fibers are disposed circumferentially around a central excitation fiber, enabling a conventional focussing lens arrangement to be used for imaging purposes. The assembly may optionally include a rotationally symmetric diffraction grating to cause the excitation energy to assume an annulus superimposed over the image of the collection fibers. The excitation and collection fiber may alternatively be physically spaced apart from one another sufficient to permit one or more optical elements to be disposed in either or both of the excitation and collection paths, depending upon the application.

摘要翻译： 光纤探头使用激发和收集光纤的远端之间的成像光学元件和被调查的样品，以增强工作距离和效率。 在一个实施例中，多个收集纤维围绕中心激励光纤周向设置，使得传统的聚焦透镜装置能够用于成像目的。 组件可以可选地包括旋转对称的衍射光栅，以使激发能量呈现叠加在收集光纤的图像上的环带。 激励和收集光纤可以可选地物理上彼此间隔开，足以允许一个或多个光学元件设置在激励和收集路径中的一个或两个中，这取决于应用。

公开(公告)号：US07307804B2

公开(公告)日：2007-12-11

申请号：US11333046

申请日：2006-01-17

申请人： James M. Tedesco ,  Joseph B. Slater

发明人： James M. Tedesco ,  Joseph B. Slater

IPC分类号： G02B5/04 ,  G02B7/18

CPC分类号： G02B5/1814 ,  G02B6/29307 ,  G02B6/29311 ,  G02B6/29398 ,  G02B27/4283

摘要： Thermally stable GRISMs comprise a substrate and cover plate composed of a first material keeps the spatial frequency of the grating stable with temperature, and a prism composed of a second material having lower thermal coefficient of refractive index than that of the first material. In the preferred embodiment, the first material is fused silica, and the second material is BK7 glass.

摘要翻译： 热稳定的GRISM包括由第一材料构成的基板和盖板，使得光栅的空间频率保持温度稳定，并且由具有比第一材料的折射率的热折射率低的第二材料构成的棱镜。 在优选实施例中，第一材料是熔融二氧化硅，第二材料是BK7玻璃。

公开(公告)号：US06907149B2

公开(公告)日：2005-06-14

申请号：US10350580

申请日：2003-01-24

申请人： Joseph B. Slater

发明人： Joseph B. Slater

IPC分类号： G01N21/64 ,  G01N21/65 ,  G02B6/42 ,  G02B6/00

CPC分类号： G01N21/645 ,  G01N21/65 ,  G01N2021/6476 ,  G02B6/4246

摘要： A remote optical measurement suitable for Raman and fluorescence detection uses one or more dielectric components and an optical configuration which affords significant miniaturization, in some cases resulting in a probe with dimensions on the order of one-half inch or less on a side. A primary application is the pharmaceutical market, wherein the reactors vessels are only 1-inch in diameter, causing a scale down of instrumentation due to space requirements.

摘要翻译： 适用于拉曼和荧光检测的远程光学测量使用一个或多个电介质组件和提供显着小型化的光学配置，在一些情况下导致尺寸在一侧的半寸以下的尺寸的探针。 主要应用是制药市场，其中反应器容器的直径仅为1英寸，由于空间要求导致仪器的缩小。