公开(公告)号：US12044572B2

公开(公告)日：2024-07-23

申请号：US17524945

申请日：2021-11-12

Applicant: SEIKO EPSON CORPORATION

Inventor： Kenichi Furuya ,  Haruki Miyasaka ,  Hisayuki Akahane

IPC: G01J3/50 ,  G01J3/02

CPC classification number: G01J3/50 ,  G01J3/0202 ,  G01J3/0232

Abstract: A color measurement apparatus includes an opening portion forming member that is a member in which an opening portion for causing light arriving from a measurement target to enter inside the apparatus is formed, and that is arranged on a bottom surface at a time of measurement performed by the apparatus, an incident light processing portion that processes light incident through the opening portion, and a shutter unit configured to be displaced between a closed position at which the opening portion is covered, in which the shutter unit includes a shutter member that closes the opening portion when the shutter unit is at the closed position, a shutter holding member that holds the shutter member such that the shutter member is configured to be displaced in a direction of approaching to and separating from the opening portion, and a pressing member that presses the shutter member toward the opening portion.

公开(公告)号：US11815396B2

公开(公告)日：2023-11-14

申请号：US17700476

申请日：2022-03-21

Applicant: CAIPU TECHNOLOGY (ZHEJIANG) CO., LTD.

Inventor： Kun Yuan ,  Shuanghu Gong ,  Jian Wang

IPC: G01J3/02

CPC classification number: G01J3/0251 ,  G01J3/0208 ,  G01J3/0232 ,  G01J3/0237 ,  G01J3/0294

Abstract: Disclosed are a dual-optical-path spectrophotometer and a color measurement method thereof. The spectrophotometer includes an integrating sphere, a light source, and a sensor. A second shutter, a semi-reflecting and semi-transmitting device and lenses are arranged between the detection hole and the sensor, and a light guide device and a first shutter are arranged between a light guide hole formed in the integrating sphere and the semi-reflecting and semi-transmitting device. The color measurement method includes the following steps. A first shutter is closed, a second shutter is opened, light, reflected by the measuring opening, enters a sensor and the sensor measures a spectral reflected signal of the object surface. The first shutter is opened, the second shutter is closed, reflected light enters the sensor, and the sensor measures a spectral reflected signal of a light source. A final sampled signal is calculated.

公开(公告)号：US11733158B2

公开(公告)日：2023-08-22

申请号：US17249124

申请日：2021-02-22

Applicant: REBELLION PHOTONICS, INC.

Inventor： Robert Timothy Kester ,  Ohad Israel Balila

IPC: G01N21/35 ,  G01N21/3504 ,  G01J3/36 ,  G01J3/02 ,  G01N33/00 ,  G01M3/38 ,  G01J3/28 ,  G01N21/17 ,  G01J3/12

CPC classification number: G01N21/3504 ,  G01J3/0232 ,  G01J3/28 ,  G01J3/36 ,  G01M3/38 ,  G01N33/0047 ,  G01J2003/1213 ,  G01N2021/1795 ,  G01N2021/3531 ,  G01N2201/0221

Abstract: A spectral imaging system configured to obtain spectral measurements in a plurality of spectral regions is described herein. The spectral imaging system comprises at least one optical detecting unit having a spectral response corresponding to a plurality of absorption peaks of a target chemical species. In an embodiment, the optical detecting unit may comprise an optical detector array, and one or more optical filters configured to selectively pass light in a spectral range, wherein a convolution of the responsivity of the optical detector array and the transmission spectrum of the one or more optical filters has a first peak in mid-wave infrared spectral region between 3-4 microns corresponding to a first absorption peak of methane and a second peak in a long-wave infrared spectral region between 6-8 microns corresponding to a second absorption peak of methane.

公开(公告)号：US20190041323A1

公开(公告)日：2019-02-07

申请号：US15670550

申请日：2017-08-07

Applicant: The Boeing Company

Inventor： Mark D. Rogers ,  Loyal Bruce Shawgo ,  Jeffery Thomas Murphy

IPC: G01N21/359 ,  G01N21/3563 ,  G01N21/47 ,  G01N21/85 ,  G01J3/50 ,  G01J3/51

CPC classification number: G01N21/359 ,  G01J3/0232 ,  G01J3/0254 ,  G01J3/08 ,  G01J3/28 ,  G01J3/42 ,  G01J3/506 ,  G01J3/513 ,  G01N21/3563 ,  G01N21/474 ,  G01N21/85

Abstract: Systems and methods are provided for measuring spectral hemispherical reflectance. One embodiment is a system that includes a laser that emits a beam of light, and an optical chopper disposed between the laser and a sample. The chopper blocks the beam while the chopper is at a first angle of rotation, redirects the beam along a reference path while the chopper is at a second angle of rotation, and permits the beam to follow a sample path through the chopper and strike the sample while the chopper is at a third angle of rotation. The system also includes a hollow sphere that defines a slot through which the sample path and reference path enter the sphere. The hollow sphere includes a spectral hemispherical reflectance detector, a mount that receives the sample at the sphere, and an actuator that rotates the sphere about an axis that intersects the sample.

公开(公告)号：US09841371B2

公开(公告)日：2017-12-12

申请号：US14516772

申请日：2014-10-17

Applicant: Thermo Scientific Portable Analytical Instruments Inc.

Inventor： Kevin J. Knopp ,  Robert L. Green ,  Brendon D. Tower ,  Christopher D. Brown ,  Gregory H. Vander Rhodes

IPC: G01N21/17 ,  G01J3/02 ,  G01J3/44 ,  G01N21/47 ,  G01N21/65 ,  G01J3/42 ,  G01N21/55 ,  G01N21/59 ,  G01N21/35

CPC classification number: G01N21/17 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0262 ,  G01J3/0264 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/42 ,  G01J3/44 ,  G01J3/4412 ,  G01N21/47 ,  G01N21/4738 ,  G01N21/55 ,  G01N21/59 ,  G01N21/65 ,  G01N2021/3595 ,  G01N2201/0221 ,  G01N2201/0612 ,  G01N2201/062 ,  G01N2201/105 ,  G01N2201/125

Abstract: Disclosed are apparatus, kits, methods, and systems that include a radiation source configured to direct radiation to a sample; a detector configured to measure radiation from the sample; an electronic processor configured to determine information about the sample based on the measured radiation; a housing enclosing the source, the detector, and the electronic processor, the housing having a hand-held form factor; an arm configured to maintain a separation between the sample and the housing, the arm including a first end configured to connect to the housing and a second end configured to contact the sample; and a layer positioned on the second end of the arm, the layer being configured to contact the sample and to transmit at least a portion of the radiation from the sample to the detector.

公开(公告)号：US20170350758A1

公开(公告)日：2017-12-07

申请号：US15462350

申请日：2017-03-17

Applicant: Rebellion Photonics, Inc.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: G01J3/02 ,  G01J3/28 ,  G01N21/3504 ,  G01J3/36 ,  G01J5/00

CPC classification number: G01J3/0232 ,  G01J3/0229 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/36 ,  G01J2005/0077 ,  G01N21/3504

Abstract: Various embodiments disclosed herein describe a divided-aperture infrared spectral imaging (DAISI) system that is adapted to acquire multiple IR images of a scene with a single-shot (also referred to as a snapshot). The plurality of acquired images having different wavelength compositions that are obtained generally simultaneously. The system includes at least two optical channels that are spatially and spectrally different from one another. Each of the at least two optical channels are configured to transfer IR radiation incident on the optical system towards an optical FPA unit comprising at least two detector arrays disposed in the focal plane of two corresponding focusing lenses. The system further comprises at least one temperature reference source or surface that is used to dynamically calibrate the two detector arrays and compensate for a temperature difference between the two detector arrays.

公开(公告)号：US09752927B2

公开(公告)日：2017-09-05

申请号：US15117598

申请日：2015-02-05

Applicant: VICTORIA LINK LTD

Inventor： Justin M. Hodgkiss ,  Kai Chen

IPC: G01J1/42 ,  G01N21/63 ,  G01N21/64 ,  G01N21/65 ,  G01J3/28 ,  G01J3/02 ,  G01J3/44

CPC classification number: G01J1/4228 ,  G01J3/0232 ,  G01J3/2889 ,  G01J3/4406 ,  G01J2003/4424 ,  G01N21/636 ,  G01N21/6408 ,  G01N21/65 ,  G01N2201/061 ,  G01N2201/0696

Abstract: A transient grating (TG) is used as an optical gating element with sub-picosecond time resolution for luminescence measurements from a photo-detector array. The transient grating is formed in a gate medium by one or more pulsed gate beams. For photoluminescence measurements such as photoluminescence spectroscopy or imaging, a source is excited by a pulsed excitation beam, and the pulsed gate beams are synchronized to the pulsed excitation beam with an adjustable delay between the excitation of the source and the formation of the TG. Moreover, a source or its spectra can be imaged at two different regions of the photo-detector array at two different times spaced in time by a selected duration of time with sub-picosecond resolution over a range of a nanosecond or more. A beam from the source is deflected to the different regions by changing the frequency or geometry of the pulsed gate beams.

公开(公告)号：US09746374B2

公开(公告)日：2017-08-29

申请号：US14424442

申请日：2014-02-26

Applicant: Otsuka Electronics Co., Ltd.

Inventor： Hisashi Shiraiwa

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/28 ,  G01J1/44

CPC classification number: G01J3/0264 ,  G01J1/44 ,  G01J3/02 ,  G01J3/0232 ,  G01J3/0262 ,  G01J3/2803 ,  G01J3/42 ,  G01J2001/4406 ,  G01J2001/444 ,  G01J2001/448

Abstract: A spectrophotometer includes a photodetection unit configured to convert received light into an electric signal to output the electric signal; a circuit unit including a plurality of gain amplifiers and a plurality of AD converters configured to amplify an output signal from the photodetection unit by a plurality of gains using the plurality of gain amplifiers and configured to convert the amplified output signals into digital signals using the plurality of AD converters to output the digital signals as a plurality of pieces of light amount data; a saturation determination unit configured to determine whether or not each of the plurality of pieces of light amount data from the circuit unit has been saturated; and a measurement result calculation unit configured to calculate, in accordance with a result of the determination by the saturation determination unit, a measurement result of the received light using a part or all of the plurality of pieces of light amount data.

公开(公告)号：US09746373B2

公开(公告)日：2017-08-29

申请号：US14939309

申请日：2015-11-12

Applicant: National Institute of Meteorological Sciences

Inventor： Young Suk Oh ,  Tae Young Goo ,  Jin Ho Shin ,  Jong Ho Lee ,  Kyu Sun Chung ,  Bok Haeng Heo

IPC: G01J3/02 ,  G01W1/00 ,  G01J1/04 ,  G01J1/26

CPC classification number: G01J3/0232 ,  G01J1/0437 ,  G01J1/044 ,  G01J1/26 ,  G01J3/0275 ,  G01W1/00

Abstract: The present invention relates to an apparatus for detecting photons according to an atmospheric condition, using a function of adjusting light quantity that can significantly improve reliability of an atmospheric condition analysis result by minimizing noise in a spectrum by maintaining the quantity of incident light uniform within a predetermined range regardless of atmospheric conditions and changes, and to a method of adjusting light quantity. The apparatus for detecting photons in accordance with atmospheric conditions using a function of adjusting light quantity includes: an apparatus case having a light inlet; a light quantity adjuster disposed under the light inlet and adjusting quantity of incident light such that a predetermined quantity of light travels inside; and a controller controlling operation of the light quantity adjuster in accordance with intensity of light detected by the light quantity adjuster.

公开(公告)号：US20170135582A1

公开(公告)日：2017-05-18

申请号：US15353198

申请日：2016-11-16

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Seongho Cho ,  Gajendra Singh ,  Juneyoung Lee

IPC: A61B5/00 ,  G01N21/65

CPC classification number: A61B5/0075 ,  A61B5/725 ,  G01J3/0232 ,  G01J3/027 ,  G01J3/10 ,  G01J3/14 ,  G01J3/18 ,  G01J3/2803 ,  G01J3/36 ,  G01J3/44 ,  G01J2003/1217 ,  G01J2003/1234 ,  G01J2003/2806 ,  G01J2003/4424 ,  G01N21/65 ,  G01N2201/06113 ,  G01N2201/068 ,  G01N2201/0697 ,  G01N2201/12

Abstract: Provided are a Raman signal measuring method and apparatus which use a difference in a time scale between Raman scattered light and fluorescence. Thus, after exciting light is incident upon a target object, light scattered from the target object may be detected before the target object generates fluorescence in response to the exciting light. As a result, a Raman signal in which background fluorescence is reduced may be obtained.