Interferometer, spectrophotometer using interferometer and control method for interferometer

    公开(公告)号:US09945723B2

    公开(公告)日:2018-04-17

    申请号:US14933867

    申请日:2015-11-05

    Applicant: HORIBA, Ltd.

    Inventor: Yoshitake Ando

    Abstract: The present invention provides an interferometer and the like, that is capable of ensuring the speed stability of the movable mirror while achieving the speed up of the reciprocal movement of the moving mirror and suppressing the increment of the maximum instantaneous thrust force required for the turning back as much as possible. The interferometer includes a moving mirror, a movement mechanism for reciprocating the moving mirror, a movement control part for controlling the movement mechanism and allowing the moving mirror to be reciprocated at a constant speed, and a measurement part for measuring a position of the moving mirror. The movement control part is adapted to receive target position data indicating a target position of the moving mirror, and control the movement mechanism to bring the measurement position of the moving mirror measured by the measurement part close to the target position indicated by the target position data.

    Spectrometry device, image forming apparatus, and spectrometry method

    公开(公告)号:US09823129B2

    公开(公告)日:2017-11-21

    申请号:US15058527

    申请日:2016-03-02

    Inventor: Ryohei Kuri

    Abstract: A printer includes a spectroscope and a carriage moving unit. The spectroscope includes a wavelength-selective interference filter on which light from a measurement target is incident, and the carriage moving unit moves the spectroscope in an X direction with respect to the measurement target. If the measurement target is a color patch, the spectroscope performs spectrometry by changing a wavelength of light passing through the wavelength-selective interference filter in a first period during which the spectroscope is moved in the X direction, and passes light of an initial wavelength through the wavelength-selective interference filter at a start of measurement and at an end of measurement in the first period. A first output value that is a measured value from the spectrometry at the start of measurement is compared with a second output value that is a measured value from the spectrometry at the end of measurement.

    Laser induced breakdown spectroscopy (LIBS) apparatus based on high repetition rate pulsed laser

    公开(公告)号:US09797776B2

    公开(公告)日:2017-10-24

    申请号:US15166374

    申请日:2016-05-27

    CPC classification number: G01J3/443 G01J3/0208 G01J3/06 G01J3/10 G01J3/28

    Abstract: This invention discloses a laser induced breakdown spectroscopy (LIBS) apparatus based on a high repetition rate pulsed laser. The laser produces a train of laser pulses at a high repetition rate in the kHz or even higher range. When the laser beam hits the sample, it generates several thousands of micro-plasma emissions per second. Synchronized miniature CCD array optical spectrometer modules collect the LIBS signal from these micro-plasma emissions. By adjusting the integration time of the spectrometer to cover a plurality of periods of the laser pulse train, the spectrometer integrates the LIBS signal produced by this plurality of laser pulses. Hence the intensity of the obtained LIBS spectrum can be greatly improved to increase the signal-to-noise ratio (SNR) and lower the limit of detection (LOD). In addition, the influence of pulse to pulse variation of the laser is minimized since the obtained LIBS spectrum is the spectrum of a plurality of micro-plasma emissions produced by a plurality of laser pulses. The high repetition rate laser also makes it possible to measure the LIBS signal at a short and a long integration time and mathematically combining the two spectra to obtain a LIBS spectrum with enhanced dynamic range.

    Drive element for an optical system

    公开(公告)号:US09726882B2

    公开(公告)日:2017-08-08

    申请号:US14475406

    申请日:2014-09-02

    Inventor: Kevin E. Jones

    Abstract: Optical system comprising a motor, an optical element, an optical detector, and a linkage that connects operation of the motor to movement of the optical element and the optical detector relative to one another. The linkage may include a shaft and a drive element that operatively connects the shaft to another part of the linkage. In some embodiments, the drive element may include a clamp having a base and a retainer that compressively secure the drive element to the shaft by engagement of a cylindrical surface region of the shaft with the base and engagement of a flat surface region of the shaft with the retainer. In some embodiments, the drive element may include a collar secured to the shaft with a fastener disposed in threaded engagement with a transverse hole defined by the shaft.

    SPECTROSCOPIC MAPPING SYSTEM AND METHOD
    39.
    发明申请
    SPECTROSCOPIC MAPPING SYSTEM AND METHOD 审中-公开
    光谱映射系统和方法

    公开(公告)号:US20170010153A1

    公开(公告)日:2017-01-12

    申请号:US15115497

    申请日:2015-01-30

    Abstract: A system and method for spectroscopic mapping, with configurable spatial resolution, of an object include a fiber optic bundle having a plurality of optical fibers arranged in a first array at an input end with each of the plurality of optical fibers spaced one from another and arranged in at least one linear array at an output end. A first mask defining a plurality of apertures equal to or greater in number than the plurality of optical fibers is positioned between an object to be imaged and the input end of the fiber optic bundle. An imaging spectrometer is positioned to receive light from the output end of the fiber optic bundle and to generate spectra of the object. A sensor associated with the imaging spectrometer converts the spectra to electrical output signals for processing by an associated computer.

    Abstract translation: 具有可配置空间分辨率的对象的光谱映射的系统和方法包括具有多个光纤的光纤束,所述光纤束具有在输入端以第一阵列布置的多个光纤,所述多个光纤中的每一个彼此间隔开并布置 在输出端的至少一个线性阵列。 限定数量等于或大于多个光纤的多个孔的第一掩模位于待成像对象与光纤束的输入端之间。 成像光谱仪定位成从光纤束的输出端接收光并产生物体的光谱。 与成像光谱仪相关联的传感器将光谱转换成电输出信号以供相关计算机处理。

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