公开(公告)号：US20190242746A1

公开(公告)日：2019-08-08

申请号：US16386302

申请日：2019-04-17

Applicant: FYZIKALNI USTAV AV CR, V.V.I.

Inventor： Jaroslav NEJDL

IPC: G01J1/42 ,  G01J3/02 ,  G01J3/18 ,  G01N23/207

CPC classification number: G01J1/4257 ,  G01J1/429 ,  G01J3/021 ,  G01J3/0237 ,  G01J3/0262 ,  G01J3/0289 ,  G01J3/18 ,  G01J2003/1847 ,  G01N23/2076 ,  G01N2223/1016

Abstract: The present invention concerns an apparatus for spectral and intensity profile characterization comprising: a diffractive element; a beam block (3) attached to the diffractive element, the beam block (3) being positioned so as to block the passage of the direct incoming beam (1) which is not incident on the diffractive element; a device for translation of the beam block (3) and the diffractive element; reflective element (4); fixed detector (5) positioned on the axis of the incoming beam (1). The invention also concerns use and a method thereof. Such a compact system provides application in the field of spectrometry and diagnostics of the beam intensity profile, especially in the area of XUV and soft X-rays.

公开(公告)号：US20190172192A1

公开(公告)日：2019-06-06

申请号：US16258173

申请日：2019-01-25

Applicant: Fluke Corporation

Inventor： Matthew F. Schmidt ,  Tyler B. Evans ,  Derek Hutton

IPC: G06T7/00 ,  G01J3/02 ,  G01S17/00 ,  G01J3/10 ,  G01J3/28 ,  H04N5/33 ,  H04N5/225 ,  H01L27/146 ,  G01S17/89 ,  G01S17/88 ,  G01N33/00 ,  G01N21/39 ,  G01N21/3504 ,  G01N21/31 ,  G01J3/42

CPC classification number: G06T7/001 ,  G01J3/0289 ,  G01J3/10 ,  G01J3/2803 ,  G01J3/2823 ,  G01J3/42 ,  G01N21/3151 ,  G01N21/3504 ,  G01N21/39 ,  G01N33/0027 ,  G01N2021/3155 ,  G01N2201/0221 ,  G01N2201/06113 ,  G01S17/00 ,  G01S17/88 ,  G01S17/89 ,  G06T2207/10048 ,  H01L27/14601 ,  H04N5/2256 ,  H04N5/332

Abstract: Aspects of the invention generally relate to illumination gas imaging and detection. Camera systems can illuminate a target scene with light sources configured to emit absorbing and non-absorbing wavelengths with respect to a target gas. An image of the target scene illuminated with a non-absorbing wavelength can be compared to a non-illuminated image of the target scene in order to determine information about the background of the target scene. If sufficient light of the non-absorbing wavelength is scattered by the scene toward a detector, the target scene comprises an adequate background for performing a gas imaging process. A camera system can alert a user of portions of the target scene suitable or unsuitable for performing a gas imaging process. If necessary, the user can reposition the system until sufficient portions of the target scene are recognized as suitable for performing the gas imaging process.

公开(公告)号：US20190113386A1

公开(公告)日：2019-04-18

申请号：US15785841

申请日：2017-10-17

Applicant: RAYTHEON COMPANY

Inventor： Liam Skoyles ,  Patrick W. Clark

IPC: G01J3/02 ,  G01J3/28 ,  G01J3/10 ,  G02B7/00

CPC classification number: G01J3/0289 ,  G01B11/272 ,  G01J3/021 ,  G01J3/0229 ,  G01J3/0297 ,  G01J3/108 ,  G01J3/2823 ,  G01J3/36 ,  G01J5/522 ,  G02B7/003 ,  G02B27/1013

Abstract: Aspects are generally directed to an alignment assembly and method for aligning a multi-spectral optical system. In one example, an alignment assembly includes an illumination source configured to emit illumination in a first spectral band, and a first plate having a plurality of apertures formed in a reflective surface thereof. The reflective surface of the first plate is disposed to reflect the illumination emitted by the illumination source. The alignment assembly may also include a second plate positioned proximate to the first plate and spaced apart from the first plate to define a gap between the first plate and the second plate, the first plate being interposed between the second plate and the illumination source, and a heating element coupled to the second plate and configured to heat the second plate to emit thermal infrared radiation, from the second plate, in a second spectral band.

公开(公告)号：US20190113337A1

公开(公告)日：2019-04-18

申请号：US15786273

申请日：2017-10-17

Applicant: RAYTHEON COMPANY

Inventor： Liam Skoyles ,  Justin Martin ,  Tyler Layne Hook ,  Benjamin P. Lane

IPC: G01B11/27 ,  G01J3/28 ,  G01J1/02

CPC classification number: G01B11/272 ,  G01J1/0266 ,  G01J3/0208 ,  G01J3/0229 ,  G01J3/0237 ,  G01J3/0289 ,  G01J3/2823 ,  G01J3/36

Abstract: Aspects are generally directed to multi-sensor boresight alignment methods and systems for a multi-spectral reimaging optical system. In one example, a multi-sensor boresight alignment system includes a system interface to receive a first image frame from a first sensor and a second image frame from a second sensor, the first image frame having a contrast within a first spectral band and including a first image of a plate having a pattern of apertures, and the second image frame having a contrast within a second spectral band and including a second image of the plate. The system includes a field programmable gate array (FPGA) coupled to the system interface, the FPGA configured to spot track each image frame to identify a corresponding centroid of the pattern of apertures and correct an optical alignment between the first and second sensors based on a position of the corresponding centroids.

公开(公告)号：US20190069476A1

公开(公告)日：2019-03-07

申请号：US16106201

申请日：2018-08-21

Applicant: TOPCON CORPORATION

Inventor： Taichi YUASA

IPC: A01C21/00 ,  G01J3/02 ,  G01J3/10 ,  G01J3/427 ,  G01N21/3563

CPC classification number: A01C21/007 ,  G01J3/0208 ,  G01J3/021 ,  G01J3/0218 ,  G01J3/0224 ,  G01J3/024 ,  G01J3/0272 ,  G01J3/0286 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/10 ,  G01J3/108 ,  G01J3/427 ,  G01J2003/104 ,  G01J2003/4275 ,  G01N21/3563 ,  G01N21/359 ,  G01N2021/1797 ,  G01N2021/3181 ,  G01N2021/8466 ,  G01N2201/0214 ,  G01N2201/0221 ,  G01N2201/0627 ,  G01N2201/0691

Abstract: A light source section configured to couple a plurality of laser beams having different wavelengths and emit measuring light; an illuminating section configured to illuminate a measurement target at a predetermined angle; a light receiving section configured to receive reflected measuring light from the measurement target; and a controlling section configured to compute a reflectance at each of the wavelengths, based on a light receiving result. The light source section includes: a first and a second light source configured to emit each laser beams having different wavelengths; and a dichroic mirror disposed in optical axes of the laser beams intersected, configured to combine the laser beams. The light receiving section includes: a first, a second and a third light receiving unit configured to receive the reflected measuring light from different distance. The controlling section is configured to select which of results from each light receiving unit to use.

公开(公告)号：US20180283945A1

公开(公告)日：2018-10-04

申请号：US15986526

申请日：2018-05-22

Applicant: X-Rite Switzerland GmbH

Inventor： Peter Ehbets ,  Guido Niederer

IPC: G01J3/28 ,  G01N21/25 ,  G01J3/50 ,  G01J3/51 ,  G01J3/02 ,  G01N21/47 ,  G01N21/57

CPC classification number: G01J3/2823 ,  G01J3/0289 ,  G01J3/501 ,  G01J3/504 ,  G01J3/51 ,  G01J2003/2826 ,  G01N21/255 ,  G01N21/256 ,  G01N21/274 ,  G01N21/474 ,  G01N21/4785 ,  G01N21/57 ,  G01N2021/4735 ,  G02B21/367

Abstract: A device for radiometrically gauging the surface of a measurement object (O) includes: at least one measurement array featuring an illumination array and a pick-up array; and a processor (P) for controlling the illumination array and the pick-up array and for processing measurement signals produced by the pick-up array and for providing processed image data. The illumination array exposes a region of the measurement object (O) to illumination light at an illumination angle (θi) and an illumination aperture angle (αi), and the pick-up array captures measurement light, reflected by the measurement object (O), at a pick-up angle (θv) and a pick-up aperture angle (αv) and guides it onto an image sensor exhibiting a pixel structure. The measurement object (O) is gauged multispectrally in multiple wavelength ranges, wherein the image sensor produces multispectral image data. Angular and spatial conditions are indicated which optimise the measurement device (MD) with regard to characterising sparkles.

公开(公告)号：US10054482B2

公开(公告)日：2018-08-21

申请号：US14858745

申请日：2015-09-18

Applicant: Antonio Maccari

Inventor： Antonio Maccari

IPC: G01B11/14 ,  G01J3/02 ,  G01J3/06 ,  G01J3/50

CPC classification number: G01J3/0202 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/06 ,  G01J3/50

Abstract: A tool for positioning a scanning device provided with a spectrometer comprises a support having a resting zone suitable for being rested onto a surface, a fixing arrangement for fixing the scanning device to the tool. The support is so dimensioned as to leave uncovered an operative zone in which the spectrometer is movable for acquiring an image provided on a substrate, so that the spectrometer can acquire the image while the support is resting directly on the substrate. The tool further comprises a vision device comprising a video camera for recording the image and a control unit that controls the video camera, the control unit being programmed to recognise pre-established points of the image recorded by the video camera.

公开(公告)号：US20180180479A1

公开(公告)日：2018-06-28

申请号：US15730682

申请日：2017-10-11

Applicant: Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： JUN ZHU ,  TONG YANG ,  XIAO-FEI WU ,  GUO-FAN JIN ,  SHOU-SHAN FAN

IPC: G01J3/02 ,  G01J3/28

CPC classification number: G01J3/0289 ,  G01J3/2823 ,  G01J2003/283 ,  G02B27/0012

Abstract: An initial system and a constraint condition are established. All freeform surfaces are obtained by surface fitting the feature data points to form a first freeform surface imaging optical system. The first freeform surface imaging optical system is taken as the initial system for multiple iterations to obtain a second freeform surface imaging optical system. The second freeform surface imaging optical system is taken as a first base system. A first surface freedom of the first base system is selected, the values nearby the first surface freedom is selected, and surface positions and tilts of the first base system are changed to obtain a third freeform surface imaging optical system that satisfies the constraint condition. A second base system is selected and the method above is repeated. The freeform surface imaging optical system is obtained until all freedoms for surface positions and tilts have been used.

公开(公告)号：US09976907B1

公开(公告)日：2018-05-22

申请号：US15641975

申请日：2017-07-05

Applicant: The Boeing Company

Inventor： Robert Steven Wright ,  Van Jerold Winters

IPC: G08B17/00 ,  G01J5/00 ,  G08B17/12

CPC classification number: G01J5/0088 ,  B64D33/00 ,  G01J3/0264 ,  G01J3/027 ,  G01J3/0289 ,  G01J3/2803 ,  G01J5/0018 ,  G01J5/602 ,  G01J2005/0077 ,  G08B17/12 ,  G08B17/125

Abstract: An aircraft-mounted external fire detection system includes optical circuitry and processing circuitry. The optical circuitry is mounted on an aircraft aft of an engine nacelle of the aircraft, and is configured to optically monitor an exterior of the engine nacelle for a hydrocarbon fire by detecting radiation outside of the visible light spectrum. The processing circuitry is communicatively coupled to the optical circuitry and is configured to use the optical circuitry to determine that the fire has been continuously present for more than a threshold duration, and in response, transmit a warning to an operator terminal of the aircraft.

公开(公告)号：US09952100B2

公开(公告)日：2018-04-24

申请号：US14874726

申请日：2015-10-05

Applicant: SciAps, Inc.

Inventor： David R. Day ,  Konstantin Derman ,  John Francis Egan ,  Paul Edward Soucy

IPC: G01J3/30 ,  G01J3/28 ,  G01J3/443 ,  G01N21/71 ,  G01J3/02

CPC classification number: G01J3/30 ,  G01J3/0218 ,  G01J3/0243 ,  G01J3/027 ,  G01J3/0272 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/2823 ,  G01J3/443 ,  G01J5/028 ,  G01N21/718 ,  G01N2201/0221 ,  G02B26/10

Abstract: A handheld LIBS spectrometer system features an optics stage moveable with respect to a housing and including a laser focusing lens. A laser source is mounted in the housing for directing a laser beam to a sample via the laser focusing lens. A detection fiber is mounted in the housing and is fixed relative thereto. A first mirror is fixed relative to the housing and includes an aperture for the laser beam. This mirror is oriented to re-direct plasma radiation for delivery to the detection fiber. A controller subsystem is responsive to the output of a spectrometer subsystem and is configured to control the laser source and the optics stage.