公开(公告)号：US09958325B2

公开(公告)日：2018-05-01

申请号：US15624008

申请日：2017-06-15

Applicant: Metal Power Analytical (I) Pvt. Ltd.

Inventor： Priyadarshan Divyadarshan Pant

IPC: G01J3/28 ,  G01J3/06 ,  G01J3/02 ,  G01J3/04 ,  G01J3/443 ,  G01N21/31 ,  G01N21/33 ,  G01J3/18 ,  G01J3/32

CPC classification number: G01J3/06 ,  G01J3/0218 ,  G01J3/0232 ,  G01J3/04 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/32 ,  G01J3/443 ,  G01J2003/045 ,  G01J2003/061 ,  G01J2003/065 ,  G01J2003/282 ,  G01N21/3103 ,  G01N21/33 ,  G01N2201/0826

Abstract: The present disclosure relates to the field of optical systems. The envisaged multi-scan optical system is compact and stable. The system comprises an excitation source, a hydra fiber cable, a wavelength selector, an optical element, and a detector. The excitation source is configured to emit composite light. The hydra fiber cable has a head and a plurality of tentacles, and is configured to receive the composite light via a second lens. The plurality of tentacles is configured to emit the composite light towards the wavelength selector which includes a plurality of optical slits (s1-s8) and a plurality of shutters. The wavelength selector is configured to selectively collect and filter the composite light directed by a first lens and the plurality of tentacles by means of the plurality of shutters. The detector is configured to detect the plurality of spectral line scans reflected by the optical element for spectrometric analysis.

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

IPC: G01J3/453 ,  G01B9/02 ,  G01J3/02 ,  G01J3/06 ,  H02P25/032

CPC classification number: G01J3/4535 ,  G01B9/02015 ,  G01J3/0202 ,  G01J3/06 ,  H02P25/032

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.

公开(公告)号：US20180073927A1

公开(公告)日：2018-03-15

申请号：US15558165

申请日：2015-03-13

Applicant: Shimadzu Corporation

Inventor： Tadafumi KAMIKAKE

IPC: G01J3/453 ,  G01N21/3563

CPC classification number: G01J3/4535 ,  G01J3/0202 ,  G01J3/027 ,  G01J3/0275 ,  G01J3/0289 ,  G01J3/06 ,  G01J2003/064 ,  G01N21/27

Abstract: A Fourier transform type spectrophotometer capable of stably controlling a speed of a moving mirror comprises a movable unit to which a moving mirror is fixed, outside-force-applying means configured to apply external force larger than movement resistance of the movable unit to the movable unit, a driving source configured to apply positive or negative driving force along the moving direction of the movable unit to the movable unit, a speed measurement unit configured to measure the speed of the movable unit, and a driving force control unit configured to control the driving force of the driving source so that the movable unit is moved in a predetermined manner based on the, wherein a rate of fluctuation of the driving force is suppressed by operating in a state in which the driving force of the driving source is high due to the external force to thereby stabilize the control.

公开(公告)号：US09906688B2

公开(公告)日：2018-02-27

申请号：US15292885

申请日：2016-10-13

Applicant: Nobuyuki Satoh ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

Inventor： Nobuyuki Satoh ,  Yasuyuki Suzuki ,  Masato Kobayashi ,  Suguru Yokozawa ,  Tatsuhiko Okada ,  Mamoru Yorimoto ,  Daisaku Horikawa ,  Yuichi Sakurada

IPC: H04N1/00 ,  H04N1/60 ,  H04N1/028 ,  H04N5/225 ,  G06K15/02 ,  G01J3/02 ,  G01J3/06 ,  G01J3/52 ,  G01J3/46 ,  H04N1/41 ,  H04N1/50 ,  H04N1/034 ,  G06K15/10

CPC classification number: H04N1/6033 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/06 ,  G01J3/46 ,  G01J3/52 ,  G01J3/524 ,  G06K15/027 ,  G06K15/102 ,  G06K2215/0094 ,  G06K2215/101 ,  H04N1/00005 ,  H04N1/00015 ,  H04N1/00023 ,  H04N1/00034 ,  H04N1/00045 ,  H04N1/00047 ,  H04N1/00068 ,  H04N1/00087 ,  H04N1/00278 ,  H04N1/00323 ,  H04N1/0282 ,  H04N1/034 ,  H04N1/41 ,  H04N1/50 ,  H04N1/6008 ,  H04N1/6044 ,  H04N5/2253 ,  H04N5/2254 ,  H04N2201/0082

Abstract: An image capturing unit includes a sensor unit that image-captures a predetermined area including a subject; and a reference chart unit that is arranged in the predetermined area and captured with the subject by the sensor unit.

公开(公告)号：US09903758B2

公开(公告)日：2018-02-27

申请号：US15606298

申请日：2017-05-26

Applicant: Junichi Azumi ,  Hidetaka Noguchi ,  Hidenori Kato ,  Masashi Suematsu ,  Masayuki Fujishima

Inventor： Junichi Azumi ,  Hidetaka Noguchi ,  Hidenori Kato ,  Masashi Suematsu ,  Masayuki Fujishima

IPC: G01J3/28 ,  G01J3/18 ,  G01J3/02

CPC classification number: G01J3/18 ,  G01J3/021 ,  G01J3/0256 ,  G01J3/0259 ,  G01J3/0264 ,  G01J3/06 ,  G01J3/28

Abstract: A spectral measurement device includes a light reflection grating having a plurality of movable gratings and a movable grating drive unit that displaces the movable gratings to alter a grating pattern of the light reflection grating, a light detecting element that detects light incident on the light reflection grating, a storage unit storing a relationship between a light quantity to be detected by the light detecting element and corresponding light intensities at differing wavelengths for different grating patterns, and a computation unit that calculates light intensities at the differing wavelengths of the light incident on the light reflection grating based on the light quantity of the incident light detected by the light detecting element for each of the different grating patterns by altering the grating pattern based on the relationship between the light quantity and the corresponding light intensities for the different grating patterns stored in the storage unit.

公开(公告)号：US20180052099A1

公开(公告)日：2018-02-22

申请号：US15387180

申请日：2016-12-21

Applicant: KLA-Tencor Corporation

Inventor： Andrew V. Hill ,  Amnon Manassen ,  Ohad Bachar

IPC: G01N21/25 ,  G01J3/12 ,  G01J3/10

CPC classification number: G01N21/255 ,  G01J1/0418 ,  G01J1/4257 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/06 ,  G01J3/10 ,  G01J3/12 ,  G01J2001/4247 ,  G01J2003/069 ,  G01J2003/1213 ,  G01J2003/1217 ,  G01J2003/1221 ,  G01J2003/1234 ,  G01N2201/0666 ,  G01N2201/0668 ,  G01N2201/0675 ,  G01N2201/0683 ,  G03F7/70633

Abstract: A metrology system includes an illumination source to generate an illumination beam, a multi-channel spectral filter, a focusing element to direct illumination from the single optical column to a sample, and at least one detector to capture the illumination collected from the sample. The multi-channel spectral filter includes two or more filtering channels having two or more channel beam paths. The two or more filtering channels filter illumination propagating along the two or more channel beam paths based on two or more spectral transmissivity distributions. The multi-channel spectral filter further includes a channel selector to direct at least a portion of the illumination beam into at least one selected filtering channel to filter the illumination beam. The multi-channel spectral filter further includes at least one beam combiner to combine illumination from the two or more filtering channels to a single optical column.

公开(公告)号：US09823129B2

公开(公告)日：2017-11-21

申请号：US15058527

申请日：2016-03-02

Applicant: Seiko Epson Corporation

Inventor： Ryohei Kuri

IPC: G01J3/26 ,  G01J3/28 ,  G01J3/50 ,  H04N1/60 ,  G01J3/02 ,  G01J3/06

CPC classification number: G01J3/2823 ,  G01J3/0229 ,  G01J3/06 ,  G01J3/26 ,  G01J3/50 ,  G01J2003/061 ,  H04N1/6033 ,  H04N1/6044

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.

公开(公告)号：US20170322077A1

公开(公告)日：2017-11-09

申请号：US15262061

申请日：2016-09-12

Applicant: Spectro Analytical Instruments GmbH

Inventor： Wolfram BOHLE ,  Alexander MORLANG

IPC: G01J3/02 ,  G02B7/18 ,  G01J3/443 ,  G02B7/182 ,  G01J3/18

CPC classification number: G01J3/021 ,  G01J3/0286 ,  G01J3/06 ,  G01J3/18 ,  G01J3/20 ,  G01J3/443 ,  G01J2003/064 ,  G02B7/181 ,  G02B7/1827

Abstract: A spectrometer for examining the spectrum of an optical emission source may include: an optical base body, a light entry aperture connected to the optical base body to couple light into the spectrometer, at least one dispersion element to receive the light as a beam of rays and generate a spectrum, and at least one detector for measuring the generated spectrum. A light path may run from the light entry aperture to the detector. A mirror group with at least two mirrors may be provided in a section of the light path between the light entry aperture and the at least one detector, in which the beam does not run parallel, which may compensate for temperature effects. In the mirror group, at least one mirror or the entire mirror group may be moveable relative to the optical base body and may be coupled to a temperature-controlled drive.

公开(公告)号：US20170314990A1

公开(公告)日：2017-11-02

申请号：US15652458

申请日：2017-07-18

Applicant: H2Optx Inc.

Inventor： Rudolf J. Hofmeister ,  Donald A. Ice ,  Scott W. Tandy

IPC: G01J3/42 ,  B01D46/00 ,  G01N33/15 ,  G01N23/00 ,  G01N21/65 ,  G01N21/3577 ,  G01N21/3504 ,  G01N21/33 ,  G01N21/25 ,  G01N21/01 ,  G01N1/06 ,  G01J3/44 ,  G01J3/10 ,  G01J3/06 ,  G01J3/00 ,  B01D46/42 ,  G01N35/10

CPC classification number: G01J3/42 ,  B01D46/0002 ,  B01D46/42 ,  G01J3/00 ,  G01J3/0202 ,  G01J3/0205 ,  G01J3/0237 ,  G01J3/0267 ,  G01J3/0286 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/10 ,  G01J3/2823 ,  G01J3/44 ,  G01N1/06 ,  G01N21/01 ,  G01N21/25 ,  G01N21/253 ,  G01N21/33 ,  G01N21/3504 ,  G01N21/3577 ,  G01N21/65 ,  G01N23/00 ,  G01N33/15 ,  G01N35/10 ,  G01N2021/0106 ,  G01N2201/0231

Abstract: In some aspects, a device for apportioning granular samples includes a sample feeder defining a conduit, the conduit including a first opening to receive the granular samples and a second opening. The device includes a shuttle operably coupled to the sample feeder to receive the granular samples from the conduit via the second opening. The shuttle is configured to apportion the granular samples to incrementally enter a sample chamber to be analyzed. The device includes an outlet conduit fluidly coupled to the sample chamber and configured to permit the sample chamber to be evacuated.

公开(公告)号：US09797776B2

公开(公告)日：2017-10-24

申请号：US15166374

申请日：2016-05-27

Applicant: Sean Xiaolu Wang ,  Qun Li

Inventor： Sean Xiaolu Wang ,  Qun Li

IPC: G01J3/30 ,  G01J3/443 ,  G01J3/10 ,  G01J3/06 ,  G01J3/02 ,  G01J3/28

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.