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    High-resolution, all-reflective imaging spectrometer
    31.
    发明申请
    High-resolution, all-reflective imaging spectrometer 有权

    公开(公告)号：US20050134844A1

    公开(公告)日：2005-06-23

    申请号：US11034412

    申请日：2005-01-12

    Applicant: Lacy Cook

    Inventor： Lacy Cook

    IPC: G02B17/06 ,  G01J3/28

    CPC classification number: G01J3/024 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/2823 ,  G02B17/0663

    Abstract: An imaging spectrometer includes an all-reflective objective module that receives an image input and produces an objective module output at an exit slit, and an all-reflective collimating-and-imaging module that receives the objective module output as an objective-end input and produces a collimating-end output, wherein the collimating-and-imaging module comprises a reflective triplet. A dispersive element receives the collimating-end output and produces a dispersive-end input into the collimating-and-imaging module that is reflected through the collimating-and-imaging module to produce a spectral-image-end output. An imaging detector receives the spectral-image-end output of the collimating-and-imaging module. The objective module may be a three-mirror anastigmat having an integral corrector mirror therein, or an all-reflective, relayed optical system comprising a set of five powered mirrors whose powers sum to substantially zero. The collimating-and-imaging module may be optimized to minimize spectral smile.

    Method of reducing noise generated by arc lamps in optical systems employing slits
    35.
    发明授权
    Method of reducing noise generated by arc lamps in optical systems employing slits 失效
    降低采用狭缝的光学系统中的电弧灯产生的噪音的方法

    公开(公告)号：US06411381B1

    公开(公告)日：2002-06-25

    申请号：US09562256

    申请日：2000-05-02

    Applicant: David E. Aspnes ,  Martin Ebert

    Inventor： David E. Aspnes ,  Martin Ebert

    IPC: G01J304

    CPC classification number: G01J3/10 ,  G01J3/024 ,  G01J3/04

    Abstract: A spectroscopy system having enhanced noise reduction that comprises (i) an arc lamp light source of emitted light, which emitted light is projected as an image of the light source; (ii) a slit aperture through which the emitted light is projected; and (iii) a detector operably associated with the slit aperture for detecting the emitted light. The slit aperture, the arc lamp, and the image of the arc lamp each have a major axis. The major axis of the slit aperture is oriented essentially orthogonally to the major axis of the image of the arc lamp, so that the signal-to-noise ratio of the spectroscopy system is improved as compared to the signal-to-noise ratio of the spectroscopy system when the major axis of the slit aperture is oriented essentially parallel to the major axis of the image of the arc lamp.

    Abstract translation: 一种具有增强的噪声降低的光谱系统，其包括（i）发射的光的弧光灯光源，其被发射为光源的图像; （ii）狭缝孔，所述发射的光被投射通过所述狭缝孔; 和（iii）与狭缝孔可操作地相关联的检测发射光的检测器。 狭缝孔径，弧光灯和弧光灯的图像各自具有长轴。 狭缝孔的长轴基本上与弧光灯的图像的主轴正交地定向，使得与信号噪声比的信噪比相比，光谱系统的信噪比得到改善 当狭缝孔的长轴基本上平行于电弧灯的图像的长轴取向时，光谱系统。

    Compact all-reflective imaging spectrometer
    36.
    发明授权
    Compact all-reflective imaging spectrometer 失效
    紧凑型全反射成像光谱仪

    公开(公告)号：US5260767A

    公开(公告)日：1993-11-09

    申请号：US808148

    申请日：1991-12-16

    Applicant: Lacy G. Cook

    Inventor： Lacy G. Cook

    IPC: G01J3/28 ,  G01J3/36

    CPC classification number: G01J3/02 ,  G01J3/024 ,  G01J3/2823

    Abstract: An all-reflective imaging spectrometer (10) has a three-mirror anastigmat (12) acting as its objective and a reflective triplet (14) with a dispersive element (18) providing the spectrometer collimator and imager. The system is capable of imaging an object being viewed to provide a plurality of different wavelength images of that object.

    Abstract translation: 全反射成像光谱仪（10）具有用作其目的的三镜式反射镜（12）和具有提供光谱仪准直仪和成像器的色散元件（18）的反射三联体（14）。 该系统能够对被观看的物体成像以提供该物体的多个不同的波长图像。

    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings
    37.
    发明授权
    Rapid scan spectral analysis system utilizing higher order spectral reflections of holographic diffraction gratings 失效
    利用全息衍射光栅的高阶光谱反射的快速扫描光谱分析系统

    公开(公告)号：US4264205A

    公开(公告)日：1981-04-28

    申请号：US940360

    申请日：1978-09-07

    Applicant: Isaac J. Landa

    Inventor： Isaac J. Landa

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01N21/31

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0208 ,  G01J3/0221 ,  G01J3/0232 ,  G01J3/024 ,  G01J3/0262 ,  G01J3/10 ,  G01J3/26 ,  G01J3/2889 ,  G01N21/314 ,  G01J2003/1273 ,  G01J2003/2853 ,  G01J3/1838

    Abstract: An improved optical system is disclosed for rapid, accurate spectral analysis of the reflectivity or transmissivity of samples. A concave holographic diffraction grating oscillated at high speed is utilized to provide a rapid scanning of monochromatic light through a spectrum of wavelengths. The grating is positively driven at very high speed. The rapid scan by the grating enables the reduction of noise error by averaging over a large number of cycles. It also reduces the measurement time and thus prevents sample heating by excessive exposure to light energy. A filter wheel having opaque segments is rotated in the optical path and is synchronous with the grating. The filter wheel is divided into two arcuate segments separated by the opaque segments arranged approximately 180 degrees apart. One arcuate segment of the wheel transmits only first order light. The other arcuate segment transmits only second order light. Separate photodetectors are employed during infrared analysis of samples for detecting first order and second order wavelength transmissions and an electronic decoder apparatus is utilized for switching between detectors.

    Abstract translation: 公开了一种改进的光学系统，用于对样品的反射率或透射率进行快速，准确的光谱分析。 利用以高速振荡的凹面全息衍射光栅，通过一系列波长快速扫描单色光。 光栅以非常高的速度被正向驱动。 光栅的快速扫描使得能够通过大量循环的平均来减少噪声误差。 它还减少测量时间，从而防止过度暴露于光能的样品加热。 具有不透明段的滤光轮在光路中旋转并与光栅同步。 过滤轮被分成两个弧形段，这些弧段由分开大约180度的不透明段分开。 车轮的一个弧形段仅传送一级光。 另一个弧形段仅传送二阶光。 在用于检测一阶和二阶波长传输的样本的红外分析期间采用单独的光电检测器，并且使用电子解码器装置在检测器之间切换。

    Solid state broad band near-infrared light source
    40.
    发明授权
    Solid state broad band near-infrared light source 有权
    固态宽带近红外光源

    公开(公告)号：US09528876B2

    公开(公告)日：2016-12-27

    申请号：US14860259

    申请日：2015-09-21

    Applicant: Innovative Science Tools, Inc.

    Inventor： Ronald H Micheels

    IPC: G01J3/00 ,  G01J3/10

    CPC classification number: G01J3/108 ,  G01J3/0216 ,  G01J3/024

    Abstract: A light source for near-infrared transmission and reflection spectroscopy can be constructed from a combination of a high power blue or blue-green light emitting diode (LED) and a phosphor element based on an inorganic material. The phosphor element absorbs the LED light and, in response to the LED excitation, emits luminescence that continuously covers the 700-1050 nm range. One possible material that can be used for such a near-infrared emitting phosphor element is a single crystal rod of Ti+3 doped Sapphire. An alternative near-infrared emitting phosphor material is a disk or rectangular shaped composite of Ti+3 doped Sapphire powder embedded in a clear optical epoxy or silicone encapsulant. Such a combination of a blue LED for excitation of a phosphor element that emits in a broad wavelength band has been widely used in white LEDs where the emission is in the 400-700 nm range.

    Abstract translation: 用于近红外透射和反射光谱的光源可以由高功率蓝光或蓝绿色发光二极管（LED）和基于无机材料的荧光体元件的组合构成。 荧光体元件吸收LED光，并且响应于LED激发，发射连续覆盖700-1050nm范围的发光。 可用于这种近红外发射磷光体元件的一种可能的材料是Ti + 3掺杂的蓝宝石的单晶棒。 替代的近红外发射磷光体材料是嵌入在透明光学环氧树脂或硅树脂密封剂中的Ti + 3掺杂的蓝宝石粉末的圆盘或矩形复合材料。 用于激发在宽波长带中发射的荧光体元件的蓝色LED的这种组合已广泛用于发射在400-700nm范围内的白色LED中。

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