Interferometer having combined beam splitter compensator plate
    41.
    发明授权
    Interferometer having combined beam splitter compensator plate 失效
    干涉仪具有组合分束器补偿板

    公开(公告)号:US5808739A

    公开(公告)日:1998-09-15

    申请号:US825432

    申请日:1997-03-28

    CPC classification number: G01J3/4535 G01J3/453

    Abstract: A Michelson-type interferometer which includes apparatus for producing a suitable collimated interferometer input beam; a beam splitter and recombiner for first splitting the input beam into two beams which have components arranged to travel along parallel forward paths and then to recombine them into a single output beam as they are returned along reverse paths to the beam splitter and recombiner; an OPD scanner for scanning the optical path difference between the two split beams travelling along said paths while substantially maintaining the parallelism between the components, and a beam reverser common to the parallel beam components for reversing their direction of travel along the reverse paths and returning them for recombination into the single output beam at the beam splitter and recombiner.

    Abstract translation: 一种迈克尔逊型干涉仪,其包括用于产生合适的准直干涉仪输入光束的装置; 分束器和重新组合器,用于首先将输入光束分成两束,其具有被布置为沿着并行的前向路径行进的分量,然后当它们沿着反向路径返回到分束器和重组器时将它们复合到单个输出光束中; 用于扫描沿着所述路径行进的两个分割光束之间的光程差的OPD扫描器,同时基本上保持部件之间的平行度,以及与平行光束部件共用的光束反向器,用于沿着反向路径反转其行进方向并返回它们 用于在分束器和重组器处的复合到单个输出光束中。

    System including unified beamsplitter and parallel reflecting element,
and retroreflecting component
    42.
    发明授权
    System including unified beamsplitter and parallel reflecting element, and retroreflecting component 失效
    系统包括统一的分光镜和平行反射元件以及后向反射元件

    公开(公告)号:US5675412A

    公开(公告)日:1997-10-07

    申请号:US562418

    申请日:1995-11-24

    Inventor: Peter R. Solomon

    CPC classification number: G01J3/4535

    Abstract: A moving mirror interferometer consists of a back-to-back double mirror, operatively interposed in the paths of beams from a beamsplitter/parallel reflecting mirror combiner, and a corner cube retroreflector. One beam component from the combiner is directed toward the retroreflector, and arrives therefrom at one side of the double mirror rotated 180.degree. about its central axis; the other component from the combiner arrives at the opposite side of the double mirror without axial rotation. Alignment in the interferometer is insensitive to shearing or tilting of the optical components; the components may be semi-rigidly mounted for resilient deflection, so as to isolate them against distortion of the supporting structure, and dynamic beam path-length variation may optimally be produced by moving the corner cube retroreflector, the back-to-back double mirror, or both.

    Abstract translation: 移动镜干涉仪由背对背双反射镜组成,可操作地插入在来自分束器/平行反射镜组合器的光束的路径中,以及角立方后视反射器。 来自组合器的一个光束分量被引向后向反射器,并且从双镜的一侧到达其从其中心轴旋转180°的一个; 来自组合器的另一个部件到达双镜子的相对侧,而不会轴向旋转。 干涉仪中的对准对光学部件的剪切或倾斜不敏感; 组件可以半刚性地安装成用于弹性偏转,以便将它们与支撑结构的变形隔离开,并且可以通过移动角立方后视反射器,背靠背双镜来最佳地产生动态光束路径长度变化 , 或两者。

    Interference spectrometer with a moving mirror
    43.
    发明授权
    Interference spectrometer with a moving mirror 失效
    干涉光谱仪带有移动镜

    公开(公告)号:US5592292A

    公开(公告)日:1997-01-07

    申请号:US353679

    申请日:1994-12-12

    CPC classification number: G01J3/4535

    Abstract: An interference spectrometer which causes an interference by dividing an output light from a light source into two optical paths and by changing the length of each optical path, and which comprises a moving mirror for changing the optical path lengths, position detecting means for detecting the position of the moving mirror and driving control means for controlling the position of the moving mirror, based on the output from the position detecting means. The spectrometer utilizes leaf springs to support the moving mirror, and the driving control means is driven at the natural frequency of the combined moving mirror and leaf springs and based on the output of the position detecting means. Advantageously, the invention has improved vibration resistance and improved power consumption.

    Abstract translation: 一种干涉光谱仪,其通过将来自光源的输出光分成两个光路而引起干扰,并且通过改变每个光路的长度,并且包括用于改变光路长度的移动镜,用于检测位置的位置检测装置 以及用于根据位置检测装置的输出来控制移动反射镜的位置的驱动控制装置。 光谱仪利用板簧支撑移动反射镜,驱动控制装置以组合的移动反射镜和板簧的固有频率,并基于位置检测装置的输出而被驱动。 有利地,本发明具有改善的抗振性和改善的功率消耗。

    Fourier transform spectroscopy by varying the path length difference
between the paths in each of a plurality of pairs of optical paths
    44.
    发明授权
    Fourier transform spectroscopy by varying the path length difference between the paths in each of a plurality of pairs of optical paths 失效
    通过改变多对光路中的每一对中的路径之间的路径长度差来进行傅立叶变换光谱

    公开(公告)号:US5422721A

    公开(公告)日:1995-06-06

    申请号:US226286

    申请日:1994-04-11

    Applicant: Robert E. Ryan

    Inventor: Robert E. Ryan

    CPC classification number: G01J3/4535

    Abstract: A Fourier-transform spectrometer includes a plurality of detectors (118-1 through 118-L), each of which receives light from a pair of optical paths of different optical path lengths. A movable mirror (116) varies the difference between the path lengths of each pair. Analog-to-digital converters (124-1 through 124-L) sample the resultant outputs at regular distance-difference intervals so as to generate sequences of sample values. The distance-difference ranges for the pairs of paths associated with different detectors are different, and the sequences together make up a synthetic interferogram that covers a range of distance differences 2L times the range of motion of the movable mirror (116). A Fourier transformation circuit (126) computes the Fourier transform of the synthetic interferogram, thereby determining the power spectrum of the incoming light, and operates a display (128) to indicate the result.

    Abstract translation: 傅立叶变换光谱仪包括多个检测器(118-1至118-L),每个检测器接收来自不同光程长度的一对光路的光。 可移动镜(116)改变每对的路径长度之间的差异。 模数转换器(124-1至124-L)以规则的距离差间隔对结果输出进行采样,以产生采样值序列。 与不同检测器相关联的路径对的距离差范围是不同的,并且这些序列一起组成了覆盖可移动镜(116)的运动范围的2L倍的距离差范围的合成干涉图。 傅里叶变换电路(126)计算合成干涉图的傅里叶变换,从而确定入射光的功率谱,并操作显示(128)以指示结果。

    Frictionless translational bearing for optical instrument element
    45.
    发明授权
    Frictionless translational bearing for optical instrument element 失效
    光学仪器元件的无摩擦平移轴承

    公开(公告)号:US4684811A

    公开(公告)日:1987-08-04

    申请号:US855995

    申请日:1986-04-25

    CPC classification number: G01J3/4535 H02K41/0356 H02K7/09

    Abstract: The bearing structure includes a cylindrical air bearing for supporting the optical instrument element carrier, a linear drive motor for determining the translational position of the carrier, and a frictionless magnetic repulsion positioning structure for determining the rotational versus translational position of the carrier.

    Abstract translation: 轴承结构包括用于支撑光学仪器元件载体的圆柱形空气轴承,用于确定载体的平移位置的线性驱动马达和用于确定载体的旋转对平移位置的无摩擦磁排斥定位结构。

    SPECTROMETER
    48.
    发明公开
    SPECTROMETER 审中-公开

    公开(公告)号:US20230146740A1

    公开(公告)日:2023-05-11

    申请号:US17980641

    申请日:2022-11-04

    CPC classification number: G01J3/0264 G01J3/021 G01J3/4535 G01J3/027

    Abstract: A spectrometer capable of providing information, to a measurer, necessary for determining whether a sample set to the spectrometer is a sample expected by the measurer or not before a main measurement includes a data processor and a display. The data processor calculates a preliminary spectral information of the sample based on at least n of a latest detected signal and a BKG information retained in advance, calculates and updates the preliminary spectral information based on at least n of the latest detected signal and the BKG information again, and repeats these calculations and updates. The display shows the preliminary spectral information that is calculated and updated in the preview display. The data processor starts integration of N (N>n) of the detected signal during a preview display of the preliminary spectral information, and acquires a spectral information of the sample.

    Systems, Apparatus, and Methods for Spectral Imaging

    公开(公告)号:US20180135970A1

    公开(公告)日:2018-05-17

    申请号:US15870920

    申请日:2018-01-13

    Abstract: A spectral imaging system includes an autocorrelator to generate different autocorrelations when the moving reflector in the autocorrelator is at different positions so as to reconstruct spectral images. The system also includes a position measurement system to measure the actual positions of the moving reflector when autocorrelations are taken. These actual locations, instead of the desired locations in conventional methods, are then used to reconstruct the spectral image. This approach can address the misalignment of the moving reflector from its desired location (due to external disturbances, slow actuator dynamics, and other factors) in conventional spectral imaging techniques and allow the development of high-resolution, high-stability, portable imaging spectrometers for the general public.

    FOURIER TRANSFORM SPECTROSCOPE
    50.
    发明申请

    公开(公告)号:US20180113026A1

    公开(公告)日:2018-04-26

    申请号:US15565002

    申请日:2015-04-16

    Abstract: A Fourier transform spectroscope having a control interferometer capable of facilitating optical axis adjustment and miniaturization by reducing the number of optical elements. Using a first reflection mirror provided with a reflection surface configured to reflect measurement light emitted from a measurement light source toward a beam splitter and a first through-hole extending along an optical axis direction of the measurement light reflected on the reflection surface and a laser light source holding portion configured to hold a laser light source such that laser light emitted from the laser light source is incident to the beam splitter through the first through-hole, optical axes of the measurement light and the laser light are aligned with each other.

Patent Agency Ranking