公开(公告)号：US20200088575A1

公开(公告)日：2020-03-19

申请号：US15746216

申请日：2016-07-06

Applicant: KONICA MINOLTA, INC.

Inventor： Yoshiroh NAGAI ,  Toshio KAWANO ,  Takashi KAWASAKI

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/36

Abstract: Spectral apparatus includes sensors that output signals indicating the respective energy amounts of a plurality of wavelength components. For each of the sensors, its reference spectral sensitivity is acquired, and an indicator indicating the reference spectral sensitivity of the sensor, is acquired. The deviation of an indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is expressed by a linear function of an indicator indicating a mechanical error in the spectral apparatus. The indicator indicating the mechanical error in the spectral apparatus, is acquired to adapt a spectral sensitivity set of sensors to a signal set output by the sensors. For each of the sensors, the deviation of the indicator indicating the spectral sensitivity of the sensor from the indicator indicating the reference spectral sensitivity of the sensor, is acquired, so that the spectral sensitivity of the sensor is acquired.

公开(公告)号：US20190368937A1

公开(公告)日：2019-12-05

申请号：US16351129

申请日：2019-03-12

Applicant: Daryoosh VAKHSHOORI ,  Romain Blanchard ,  Peili Chen ,  Masud Azimi ,  Tobias Mansuripur ,  Kalyani Krishnamurthy ,  Arran M. Bibby ,  Fred R. Huettig, III ,  Gokhan Ulu ,  Greg Vander Rhodes

Inventor： Daryoosh VAKHSHOORI ,  Romain Blanchard ,  Peili Chen ,  Masud Azimi ,  Tobias Mansuripur ,  Kalyani Krishnamurthy ,  Arran M. Bibby ,  Fred R. Huettig, III ,  Gokhan Ulu ,  Greg Vander Rhodes

IPC: G01J3/44 ,  G01K11/32 ,  G01J3/02 ,  G01J3/06

Abstract: A compact, portable Raman spectrometer makes fast, sensitive standoff measurements at little to no risk of eye injury or igniting the materials being probed. This spectrometer uses differential Raman spectroscopy and ambient light measurements to measure point-and-shoot Raman signatures of dark or highly fluorescent materials at distances of 1 cm to 10 m or more. It scans the Raman pump beam(s) across the sample to reduce the risk of unduly heating or igniting the sample. Beam scanning also transforms the spectrometer into an instrument with a lower effective safety classification, reducing the risk of eye injury. The spectrometer's long standoff range automatic focusing make it easier to identify chemicals through clear and translucent obstacles, such as flow tubes, windows, and containers. And the spectrometer's components are light and small enough to be packaged in a handheld housing or housing suitable for a small robot to carry.

公开(公告)号：US20190368931A1

公开(公告)日：2019-12-05

申请号：US16425685

申请日：2019-05-29

Applicant: Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V.

Inventor： Heinrich GRUEGER ,  Jens KNOBBE ,  Tino PUEGNER

IPC: G01J3/26 ,  G01J3/18 ,  G01J3/14 ,  G01J3/06

Abstract: A spectroscopic instrument includes a first aperture limiting device, a second aperture limiting device, a first mirror, a movable MEMS mirror, and a dispersive element spatially separate from the MEMS mirror, the movable MEMS mirror being movable in relation to the dispersive element, the movable MEMS mirror being monolithically configured as a common component with at least one of the first aperture limiting device, the second aperture limiting device, and the dispersive element, and the first and second aperture limiting devices being arranged to be spatially separate from the movable MEMS mirror and having a lateral offset from a rotational axis of the movable MEMS mirror.

公开(公告)号：US20190353920A1

公开(公告)日：2019-11-21

申请号：US16524261

申请日：2019-07-29

Applicant: Cymer, LLC

Inventor： Eric Anders Mason

IPC: G02B27/42 ,  H01S3/23 ,  G03F7/20 ,  G02B26/00 ,  H01L21/027 ,  H01S3/00 ,  G01J3/14 ,  G01J3/18 ,  H01S3/08 ,  G01J3/06

Abstract: A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.

公开(公告)号：US10442228B2

公开(公告)日：2019-10-15

申请号：US16106716

申请日：2018-08-21

Applicant: Seiko Epson Corporation

Inventor： Tsugio Gomi

IPC: B41J29/38 ,  G01J3/02 ,  G01J3/26 ,  G01J3/50 ,  G01J3/52 ,  G01B11/14 ,  G01J3/06

Abstract: A printer that incorporates a spectrometry device includes a spectroscope, a distance measurer, and a spectrometry unit. The spectroscope includes a wavelength-selective interference filter on which light from a position of measurement in a medium is incident. The distance measurer measures the distance between the position of measurement and the spectroscope, and the spectrometry unit performs spectrometry at the position of measurement by using the spectroscope and correct a measured value obtained by the spectrometry based on the measured distance.

公开(公告)号：US20190285475A1

公开(公告)日：2019-09-19

申请号：US16122486

申请日：2018-09-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sang-Pil HAN ,  Jun Hwan SHIN ,  Il Min LEE ,  Kyung Hyun PARK

IPC: G01J3/453 ,  G02B5/02 ,  G01J3/06 ,  G02B27/14

Abstract: An image acquisition apparatus including a beam source, a beam expander, a beam splitter, an interferometer, a sample, a beam diffuser, a telecentric f-θ lens, a beam scanner, and a beam detector uses a terahertz wave to acquire a surface image and a depth image of the sample.

公开(公告)号：US10416471B2

公开(公告)日：2019-09-17

申请号：US15295280

申请日：2016-10-17

Applicant: Cymer, LLC

Inventor： Eric Anders Mason

IPC: G02B26/00 ,  G02B27/14 ,  G02B27/12 ,  G02B5/04 ,  G02B27/42 ,  H01L21/027 ,  H01S3/00 ,  H01S3/23 ,  G01J3/06 ,  G01J3/14 ,  G01J3/18 ,  H01S3/08 ,  G03F7/20 ,  G01J3/12 ,  H01S3/225

Abstract: A spectral feature selection apparatus includes a dispersive optical element arranged to interact with a pulsed light beam; three or more refractive optical elements arranged in a path of the pulsed light beam between the dispersive optical element and a pulsed optical source; and one or more actuation systems, each actuation system associated with a refractive optical element and configured to rotate the associated refractive optical element to thereby adjust a spectral feature of the pulsed light beam. At least one of the actuation systems is a rapid actuation system that includes a rapid actuator configured to rotate its associated refractive optical element about a rotation axis. The rapid actuator includes a rotary stepper motor having a rotation shaft that rotates about a shaft axis that is parallel with the rotation axis of the associated refractive optical element.

公开(公告)号：US20190277753A1

公开(公告)日：2019-09-12

申请号：US16426054

申请日：2019-05-30

Applicant: MultiSensor Scientific, Inc.

Inventor： Allen M. Waxman ,  Terrence K. Jones ,  Jason M. Bylsma ,  Stefan Bokaemper

IPC: G01N21/3504 ,  G01N33/22 ,  G01N33/00 ,  G01J3/02 ,  G01J3/06 ,  G01M3/20 ,  G01J3/10 ,  G01J3/28 ,  G01J3/42 ,  G01M3/38 ,  G01F1/66

Abstract: Presented herein are systems and methods directed to a multispectral absorption-based imaging approach that provides for rapid and accurate detection, localization, and quantification of gas leaks. The imaging technology described herein utilizes a scanning optical sensor in combination with structured and scannable illumination to detect and image spectral signatures produced by absorption of light by leaking gas in a quantitative manner over wide areas, at distance, and in the presence of background such as ambient gas and vapor. Moreover, the specifically structured and scannable illumination source of the systems and methods described herein provides a consistent source of illumination for the scanning optical sensor, allowing imaging to be performed even in the absence of sufficient natural light, such as sunlight. The imaging approaches described herein can, accordingly, be used for a variety of gas leak detection, emissions monitoring, and safety applications.

公开(公告)号：US20190204585A1

公开(公告)日：2019-07-04

申请号：US16234656

申请日：2018-12-28

Applicant: Thermo Electron Scientific Instruments LLC

Inventor： John Magie Coffin

IPC: G02B26/08 ,  G02B26/10 ,  G01J3/453 ,  G01J3/02 ,  G01J3/06

CPC classification number: G02B26/0816 ,  G01J3/021 ,  G01J3/06 ,  G01J3/4535 ,  G02B7/182 ,  G02B21/0048 ,  G02B26/10 ,  G02B26/101

Abstract: A mirror assembly has one or more axes of motion and includes a mirror that is movable and forms an acute angle with a plane orthogonal to its axis of motion. The mirror assembly may include a first reflective mirror surface in the incoming optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion, and a second reflective mirror surface in the outgoing optical path that is movable and forms an acute angle with a plane orthogonal to its axis of motion and is moveable in a linear translation to scan the mirror in the interferometer in a way to generate a normal interferogram.

公开(公告)号：US10317281B2

公开(公告)日：2019-06-11

申请号：US15387449

申请日：2016-12-21

Applicant: Oak Analytics

Inventor： Ruibo Wang ,  Pawel Adam Menzfeld

IPC: G01J3/02 ,  G01J3/06 ,  G01J3/10 ,  G01J3/18 ,  G01J3/28 ,  G01J3/36 ,  G01J3/44

Abstract: A compact spectrometer includes an excitation light source configured to generate excitation light and arranged to illuminate a spot on a sample. A dispersive element includes at least one movable component and spatially separates output light emanating from the sample in response to the excitation light into a plurality of different wavelength bands. A moveable component of the dispersive element causes the plurality of different wavelength bands of the output light to be scanned across a detector. The detector includes at least one light sensor that senses the wavelength bands of the output light and generates an output electrical signal in response to the sensed output light.