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    Hand-held spectra-reflectometer
    361.
    发明申请
    Hand-held spectra-reflectometer 失效
    手持光谱反射计

    公开(公告)号：US20050280819A1

    公开(公告)日：2005-12-22

    申请号：US11156419

    申请日：2005-06-20

    Applicant: Jefferson Odhner

    Inventor： Jefferson Odhner

    IPC: G01J3/04 ,  G01J3/06 ,  G01J3/28 ,  G01J3/32

    CPC classification number: G01J3/04 ,  G01J3/0208 ,  G01J3/0289 ,  G01J3/06 ,  G01J3/32

    Abstract: The present invention is directed to apparatus and method for measuring the spectral characteristics of an object surface. The apparatus comprises a light source for generating an input signal comprising a plurality of wavelengths of energy and a diffraction grating for diffracting the input signal into a plurality of diffracted wavelengths of energy. A resonant mirror assembly associated with the diffraction grating sequentially directs a select diffracted wavelength to the object surface to generate a corresponding reflected wavelength of energy. The apparatus further comprises a sensor for determining each select diffracted wavelength of energy directed to the object surface and a detector for detecting one or more of the reflected wavelengths. The detector is coupled with the sensor for associating each select diffracted wavelength with each corresponding reflected wavelength.

    Abstract translation: 本发明涉及用于测量物体表面的光谱特性的装置和方法。 该装置包括用于产生包括多个能量波长的输入信号的光源和用于将输入信号衍射为多个衍射能量波长的衍射光栅。 与衍射光栅相关联的谐振反射镜组件将选择衍射波长顺序地引导到物体表面以产生相应的能量反射波长。 该装置还包括用于确定指向物体表面的能量的每个选择衍射波长的传感器和用于检测一个或多个反射波长的检测器。 检测器与传感器耦合，用于将每个选择的衍射波长与每个相应的反射波长相关联。

    Multi channel Raman spectroscopy system and method
    362.
    发明申请
    Multi channel Raman spectroscopy system and method 审中-公开
    多通道拉曼光谱系统及方法

    公开(公告)号：US20050264808A1

    公开(公告)日：2005-12-01

    申请号：US10967075

    申请日：2004-10-15

    Applicant: Xiaomei Wang

    Inventor： Xiaomei Wang

    IPC: G01J3/06 ,  G01J3/12 ,  G01J3/18 ,  G01J3/26 ,  G01J3/28 ,  G01J3/44 ,  G01N21/39 ,  G01N21/65

    CPC classification number: G01J3/18 ,  G01J3/0256 ,  G01J3/1256 ,  G01J3/26 ,  G01J3/44 ,  G01J2003/068 ,  G01J2003/1247 ,  G01N21/39 ,  G01N21/65

    Abstract: A spectrometer that provides the ability to combine the advantages of high resolution, compactness, ruggedness, and low-power consumption of Fabry-Perot (FP) tunable filter spectrometer, with the multi-channel multiplexing advantage of FT and/or grating/detector array. The key concept is to design and operate a tunable FP filter in a multiple-order condition. This filter is then followed by a “low-resolution” fixed grating, which disperses the filtered n-order signal into a preferably matched N-element detector array for parallel detection. The spectral resolution in this system is determined by the FP filter, which can be designed to have very high resolution. The N-order parallel detection scheme reduces the total integration or scan time by a factor of N to achieve the same signal to noise ratio (SNR) at the same resolution as the single channel tunable filter method. This design is also very flexible, allowing spectrometer systems with appropriate order N to thereby optimize the system performance for spectral resolution and scan integration time. In addition to the significant reduction in scan integration time, there are two other advantages to this approach. The first, because the FP tunable filter is designed and operated under n-orders, the fabrication tolerances of the FP filter cavity and operating conditions are significantly loosened.

    Abstract translation: 光谱仪提供了结合Fabry-Perot（FP）可调谐滤光片的高分辨率，紧凑性，坚固性和低功耗优点的能力，以及FT和/或光栅/检测器阵列的多通道复用优势 。 关键概念是设计和操作多阶可调FP滤波器。 该滤波器之后是“低分辨率”固定光栅，其将滤波后的n阶信号分散到优选匹配的N元件检测器阵列中用于并行检测。 该系统中的光谱分辨率由FP滤光片确定，可以设计成具有非常高的分辨率。 N级并行检测方案将总积分或扫描时间减少N倍，以与单通道可调滤波器方法相同的分辨率实现相同的信噪比（SNR）。 该设计也非常灵活，允许光谱仪系统具有适当的次序N，从而优化系统性能，以实现光谱分辨率和扫描积分时间。 除了显着降低扫描积分时间之外，还有另外两个优点。 首先，由于FP可调谐滤波器是按n阶设计和操作的，FP滤波器腔的制造公差和工作条件明显松动。

    Wavemeter and an arrangement for the adjustment of the wavelength of the signals of an optical source
    365.
    发明授权
    Wavemeter and an arrangement for the adjustment of the wavelength of the signals of an optical source 失效
    波长计和用于调整光源信号波长的布置

    公开(公告)号：US6043883A

    公开(公告)日：2000-03-28

    申请号：US050484

    申请日：1998-03-30

    Applicant: Edgar Leckel ,  Emmerich Mueller ,  Clemens Rueck

    Inventor： Edgar Leckel ,  Emmerich Mueller ,  Clemens Rueck

    IPC: G01J3/06 ,  G01J9/02 ,  H01S3/00 ,  H01S3/10 ,  G01B9/02 ,  G01J3/45 ,  G01N21/00

    CPC classification number: G01J9/0246

    Abstract: This invention relates to a wavemeter and an apparatus for the adjustment of the wavelength of a laser source. The invention proposes a wavemeter comprising an optical component, which generates an optical beam with a wavelength which depends on the optical power of the incident beam to be measured. To increase the precision of the wavelength measurement, the wavemeter is provided with a second measurement channel, whose optical signals are retarded by .pi./2 relative to the optical signals in a first measurement channel. The first and second measurement channels either each comprise a different etalon or the wavemeter comprises a single retardation plate to obtain the desired retardation. After calibration of the wavemeter, the optical power of the beam generated by the optical component is measured, the measured value of the optical power is compared with the power values of the calibration data and the wavelength in the calibration data corresponding to the measured value of the optical power is determined. A controller, such as a PC, compares the measured wavelength with the desired wavelength and automatically adjusts the wavelength of the signals generated by the laser source.

    Abstract translation: 本发明涉及一种用于调节激光源波长的波长计和装置。 本发明提出了一种包括光学部件的波长计，其产生具有取决于待测量的入射光束的光功率的波长的光束。 为了提高波长测量的精度，波分计提供了第二测量通道，其第一测量通道中的光信号相对于光信号被延迟了π/ 2。 第一和第二测量通道每个都包括不同的标准具，或者波导计包括单个延迟板以获得所需的延迟。 在对波形计进行校准之后，测量由光学部件产生的光束的光功率，将光功率的测量值与校准数据的功率值和校准数据中的波长相对应， 确定光功率。 诸如PC的控制器将所测量的波长与期望的波长进行比较，并自动调节由激光源产生的信号的波长。

    Monochromator and optical analyzing device using the same
    366.
    发明授权
    Monochromator and optical analyzing device using the same 失效
    单色器和使用其的光学分析装置

    公开(公告)号：US6034767A

    公开(公告)日：2000-03-07

    申请号：US292023

    申请日：1999-04-15

    Applicant: Osamu Yoshikawa

    Inventor： Osamu Yoshikawa

    IPC: G01J3/06 ,  G01J3/18 ,  G01J3/42

    CPC classification number: G01J3/06

    Abstract: A monochromator according to the present invention has an arm 1 rotatably mounted on a rotation shaft 3, and a diffraction grating 6 is fixed to the arm 1. The arm 1 is rotated by a linear motor 9 including a moving part 91 fixed to the arm 1 and a stator part 92 fixed to a base 2. The linear motor 9 is a voice-coil linear motor constructed to allow the arm 1 to rotate reciprocatively around the rotation shaft 3 within a preset angular range. The absolute rotational position of the arm 1 is detected by a rotary encoder 7 including a crossbar 71 fixed to the arm 1 and a encoder block 72 fixed to the base 2. Based on the output signal of the rotary encoder 7, the linear motor 9 is controlled so that the moving part 92 rotates at a fixed angular speed around the rotation axis 3. Thus, the wavelength scanning is carried out at high speed, and sampling of monochromatic light having desired wavelengths is performed accurately.

    Abstract translation: 根据本发明的单色仪具有可旋转地安装在旋转轴3上的臂1，并且衍射光栅6固定到臂1.臂1由线性电动机9旋转，线性电动机9包括固定到臂的移动部分91 固定在基座2上的定子部92.线性马达9是构成为能够使臂1绕预定角度范围内的旋转轴3往复运动的音圈线性马达。 臂1的绝对旋转位置由包括固定在臂1上的横杆71和固定在基座2上的编码器块72的旋转编码器7检测。基于旋转编码器7的输出信号，线性马达9 被控制为使得移动部件92围绕旋转轴线3以固定的角速度旋转。因此，波长扫描以高速进行，并且准确地执行具有期望波长的单色光的采样。

    Spectroscopic instrument with offset grating to improve focus
    367.
    发明授权
    Spectroscopic instrument with offset grating to improve focus 失效
    具有偏移光栅的光谱仪可改善焦距

    公开(公告)号：US06031608A

    公开(公告)日：2000-02-29

    申请号：US146424

    申请日：1998-09-03

    Applicant: Kenneth P. VonBargen ,  Karl H. Norris

    Inventor： Kenneth P. VonBargen ,  Karl H. Norris

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/18

    Abstract: In a spectroscopic instrument having a spherical grating to disperse incident light into a spectrum, the grating is oscillated on axis to scan the light passing through an exit slit through the spectrum or a portion of the spectrum. The axis of rotation of the grating is shifted to be displaced from tangent to the center of the spherical grating so that the light passing through the exit slit is substantially focused throughout the spectrum scanned by the instrument. The grating is mounted in the holder to shift the center of gravity of the grating and the holder to be on the axis on which the grating is pivoted.

    Abstract translation: 在具有用于将入射光分散到光谱中的球面光栅的光谱仪中，光栅在轴上振荡，以扫描通过光谱或光谱的一部分的出射狭缝的光。 光栅的旋转轴线被偏移到与球面光栅的中心相切的位置，使得通过出射狭缝的光在由仪器扫描的整个光谱中基本聚焦。 光栅安装在保持器中以将光栅和保持器的重心移动到光栅枢转的轴上。

    Spectrophotometer and electro-optic module especially suitable for use therein
    369.
    发明授权
    Spectrophotometer and electro-optic module especially suitable for use therein 失效
    分光光度计和电光模块特别适用于其中

    公开(公告)号：US5742389A

    公开(公告)日：1998-04-21

    申请号：US322244

    申请日：1994-10-12

    Applicant: James M. Zavislan ,  Jay M. Eastman ,  Robert J. Hutchison

    Inventor： James M. Zavislan ,  Jay M. Eastman ,  Robert J. Hutchison

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/18 ,  G01J3/28

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0202 ,  G01J3/0256 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/0291 ,  G01J3/18 ,  G01J3/28 ,  G01J3/502 ,  G01J3/524 ,  G01J2003/2866

    Abstract: A spectrophotometer which is highly manufacturable at minimum cost nevertheless provides precision of measurement of spectra components of light which is projected therein by maintaining precise optical alignment of optical and electrical components thereof. These components are mounted in a module which is contained in a housing having an entrance aperture which defines an object area for light the spectrum of which is measured by a photodetector in the module at an image area. The module has a base plate provided by a printed circuit board on which a closed wall encompasses an area (a corral) on one side of the circuit board. The wall is a one piece structure which extends to the vicinity of the edge of the board. It is assembled with the board as a unitary structure so that the assembly is made torsionally rigid and resists bending in the plane of the board. The module may be of sufficiently small size so as to be located in a housing which is hand held, thereby providing a hand-held spectrophotometer.

    Abstract translation: 然而，以最小成本高度可制造的分光光度计提供了通过保持其光学和电气部件的精确光学对准来投射在其中的光的光谱分量的测量的精度。 这些部件安装在一个模块中，该模块包含在具有入射孔的壳体中，该入口孔限定光的对象区域，其光谱由图像区域中的模块中的光电检测器测量。 模块具有由印刷电路板提供的底板，封闭的壁围绕电路板一侧的区域（畜栏）。 该壁是延伸到板的边缘附近的单件结构。 它与板组装成一体的结构，使得组件制成扭转刚性并抵抗板的平面中的弯曲。 模块可以具有足够小的尺寸，以便位于手持的壳体中，从而提供手持式分光光度计。

    Spectrophotometer apparatus with dual light sources and optical paths, fiber optic pick-up and sample cell therefor
    370.
    发明授权
    Spectrophotometer apparatus with dual light sources and optical paths, fiber optic pick-up and sample cell therefor 失效
    具有双光源和光路的分光光度计装置，光纤拾取器和样品池

    公开(公告)号：US5699156A

    公开(公告)日：1997-12-16

    申请号：US344209

    申请日：1994-11-23

    Applicant: David R. Carver

    Inventor： David R. Carver

    IPC: G01J3/02 ,  G01J3/06 ,  G01J3/14 ,  G01J3/10

    CPC classification number: G01J3/06 ,  G01J3/02 ,  G01J3/0221 ,  G01J3/14 ,  G01J2003/065

    Abstract: A spectrophotometer employs an array of optical elements to focus light from at least one, but preferably two light sources onto a fiber optic beam splitter that provides a pickup for a selected bandwidth of wavelengths of light in the spectral pattern. The spectral pattern can include wavelengths in the visible, near infrared and ultraviolet spectrum. To create the spectral pattern, two reflecting prisms having spherical surfaces are used, and the optical elements are arranged so that the two spectral bands from each prism are longitudinally aligned to create the spectral pattern. The prisms are on a motor driven pivot mount so that the spectral pattern may be swept across the pickup. The optical elements and the pickup are sized so that the selected bandwidth is less than twenty nanometers over the spectral pattern. The pickup is formed by a single row of the ends of fiber optic strands which are then collimated into two bundles to transmit a test component and a reference component of light. The sample cell is somewhat elongated, and a lens is interposed in the test component path before the sample cell, and this lens is sized to focus light axially through the sample cell without impinging on the sidewalls. Photodiode detectors, comparator circuitry and a controller are included.

    Abstract translation: 分光光度计采用光学元件阵列将来自至少一个但优选两个光源的光聚焦到光纤分束器上，该光纤分束器为光谱图案中所选择的光波长的带宽提供拾取器。 光谱图可以包括可见光，近红外和紫外光谱中的波长。 为了产生光谱图案，使用具有球面的两个反射棱镜，并且光学元件被布置成使得来自每个棱镜的两个光谱带纵向对齐以产生光谱图案。 棱镜位于马达驱动的枢轴支架上，使得光谱图案可以扫过拾取器。 光学元件和拾取器的尺寸使得所选择的带宽在光谱图案上小于二十纳米。 拾取器由光纤束的一行端部形成，然后将其准直成两束，以传输测试部件和光的参考部件。 样品池稍微细长，并且在样品池之前的测试组件路径中插入透镜，并且该透镜的尺寸设计成可以将光轴轴向地聚焦通过样品池而不会侵入侧壁。 包括光电二极管检测器，比较器电路和控制器。

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