公开(公告)号：US10437033B2

公开(公告)日：2019-10-08

申请号：US15840476

申请日：2017-12-13

Applicant: DAYLIGHT SOLUTIONS, INC.

Inventor： Jeremy Rowlette ,  Edeline Fotheringham ,  Justin Kane ,  Mark V. Bermal ,  David Nichols ,  William Chapman

IPC: G02B21/00 ,  G02B21/36 ,  G01J3/28 ,  G01J3/12 ,  G01J3/02 ,  G01J1/00 ,  G02B21/08 ,  G01J3/10 ,  G01J3/433 ,  H01S5/14

Abstract: A spectral imaging device (12) for generating an image (13A) of a sample (10) includes (i) an image sensor (30); (ii) a tunable light source (14) that generates an illumination beam (16) that is directed at the sample (10); (iii) an optical assembly (22) that collects light from the sample (10) and forms an image of the sample (10) on the image sensor (30); and (iv) a control system (32) that controls the tunable light source (14) and the image sensor (30). During a time segment, the control system (32) (i) controls the tunable light source (14) so that the illumination beam (16) has a center wavenumber that is modulated through a first target wavenumber with a first modulation rate; and (ii) controls the image sensor (30) to capture at least one first image at a first frame rate. Further, the first modulation rate is equal to or greater than the first frame rate.

公开(公告)号：US10436640B2

公开(公告)日：2019-10-08

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 ,  G01B11/27 ,  G01J5/52 ,  G02B27/10 ,  G01J3/36

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：US10429542B2

公开(公告)日：2019-10-01

申请号：US14138972

申请日：2013-12-23

Applicant: Brooks A Childers ,  Christopher J Fazio ,  Roger Glen Duncan

Inventor： Brooks A Childers ,  Christopher J Fazio ,  Roger Glen Duncan

IPC: G01V8/16 ,  G01L1/24 ,  G01V8/00 ,  G01V8/12 ,  G01V8/10 ,  G02B6/02 ,  E21B47/06 ,  G01K11/32 ,  G01J3/10 ,  E21B47/12 ,  G01D5/353 ,  G01L11/02 ,  E21B47/09

Abstract: A method for estimating an environmental parameter includes transmitting a first interrogation signal into an optical fiber, receiving a reflected return signal including light reflected from one or more of the plurality of FBG's in the fiber and receiving at a processor data describing the reflected return signal. The received data is comparted to expected data to determine a shift in wavelength of light reflected for one or more of the plurality of FBGs and a change in a length of a dead zone of the optical fiber based on the comparison is also determined. From this, estimates of locations two or more of the plurality of FBG's are formed.

公开(公告)号：US10429298B2

公开(公告)日：2019-10-01

申请号：US15764603

申请日：2016-09-30

Applicant: COLOR GRAIL RESEARCH

Inventor： Rémi Vauclin ,  Franck Hennebelle

IPC: G01N21/55 ,  G01J3/10 ,  G01N21/31 ,  G01J3/42

Abstract: Disclosed is a method for determining the reflectance of an object, the method including a step of solving an equation having several unknowns, the equation being obtained from formed images, the reflectance of the object and the illumination of the external light source being two unknowns of the equation. The step of solving the equation includes: calculating solution points of the equation, interpolating the calculated points by way of an interpolation function, and using at least one of the following approximations to solve the equation: a first approximation according to which each image is derived from the emission of a separate light flash, a second approximation according to which the interpolation function determines the stability points of the equation.

公开(公告)号：US20190296521A1

公开(公告)日：2019-09-26

申请号：US16306278

申请日：2017-06-05

Applicant: THE GENERAL HOSPITAL CORPORATION

Inventor： Seok Hyun Yun

IPC: H01S5/10 ,  G02B21/00 ,  H01S3/16 ,  H01S3/213 ,  H01S5/04 ,  H01S5/40 ,  H01S3/094 ,  G01N21/64 ,  G01J3/10 ,  G01J3/44 ,  G01J3/28

Abstract: Disclosed are photonic particles and methods of using particles in biological samples. The particles are configured to emit laser light when energetically stimulated by, e.g., a pump source. The particles may include a gain medium with inorganic materials, an optical cavity with high refractive index, and a coating with organic materials. The particles may be smaller than 3 microns along their longest axes. The particles may attach to each other to form, e.g., doublets and triplets. The particles may be injection-locked by coupling an injection beam into a particle while pumping so that an injection seed is amplified to develop into laser oscillation. A microscopy system may include a pump source, beam scanner, spectrometer with resolution of less than 1 nanometer and acquisition rate of more than 1 kilohertz, and spectral analyzer configured to distinguish spectral peaks of laser output from broadband background.

公开(公告)号：US20190281272A1

公开(公告)日：2019-09-12

申请号：US16427101

申请日：2019-05-30

Applicant: ALIGN TECHNOLOGY, INC.

Inventor： Noam Babayoff

IPC: H04N13/15 ,  G01B11/25 ,  H04N13/207 ,  G06T7/12 ,  A61C19/04 ,  H01L27/148 ,  A61C9/00 ,  A61B5/00 ,  A61B1/06 ,  G06T7/00 ,  G06T7/90 ,  H04N13/296 ,  H04N13/271 ,  H04N13/257 ,  G01N21/25 ,  G01J3/50 ,  G01J3/10 ,  G01J3/02 ,  G01B11/24 ,  A61B5/107 ,  A61B1/247 ,  A61B1/24 ,  A61B1/00

Abstract: A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition means for providing color data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the color data and depth data for each point in the array, thereby providing a three-dimensional color virtual model of the surface of the structure. A corresponding method for determining the surface topology and associate color of a structure is also provided.

公开(公告)号：US20190277699A1

公开(公告)日：2019-09-12

申请号：US16294294

申请日：2019-03-06

Applicant: SHIMADZU CORPORATION

Inventor： Kazumi Yokota

IPC: G01J3/45 ,  G01J3/10

Abstract: In a two-beam interferometer, the moving speed of a movable mirror for producing interference light to generate a spectrum is changed at each completion of an operation cycle during which a reciprocal motion or one-way motion of the movable mirror is performed one or more times. Intensity signals of the interference light are obtained by a plurality of detection operations, where each detecting operation includes a series of detecting operations corresponding to the reciprocal motion or one-way motion of the movable mirror performed one or more times. A piece of information which changes depending on the moving speed of the movable mirror is extracted from the intensity signals obtained by the detection operations. This speed-dependent information corresponds to periodic noise superposed on the intensity signals. Accordingly, a false peak which would otherwise appear on the spectrum due to the periodic noise can be eliminated by removing the speed-dependent information.

公开(公告)号：US20190271595A1

公开(公告)日：2019-09-05

申请号：US16292676

申请日：2019-03-05

Applicant: UT-Battelle, LLC

Inventor： Azhad U. Chowdhury ,  Benjamin L. Doughty ,  Daniel A. Lutterman ,  Yingzhong Ma ,  Tessa R. Calhoun ,  Brianna R. Watson

IPC: G01J3/433 ,  G01J3/10 ,  G01J3/02

Abstract: A vibrational sum frequency generation spectroscopy system with pulse shaping is provided. The pulse shaping provides tunable NIR-Shaped light pulses based on user input parameters which may be specified to customize the system for different experimental and testing conditions or needs.

公开(公告)号：US20190265101A1

公开(公告)日：2019-08-29

申请号：US16310563

申请日：2016-07-25

Applicant: SHIMADZU CORPORATION

Inventor： Hiroyuki TOGO ,  Shinji TSUJI

IPC: G01J3/02 ,  G01N21/01 ,  G01J3/10 ,  G03B21/20

Abstract: A photometer (100), which includes a light source (1), an optical element (30) disposed on an optical path P of light emitted from the light source (1), and a detector (5), includes: an attenuating filter (24a) that is disposed on the optical path P and between the light source (1) and the optical element (30), and blocks a portion of the light emitted from the light source (1) and allows the rest of the light to be transmitted through the attenuating filter (24a); and a state monitoring unit (83) that monitors whether or not the light source (1) and the optical element (30) are in a stable state by monitoring light that has been transmitted through the attenuating filter (24a) on the side of a stage subsequent to the optical element (30).

公开(公告)号：US10386303B2

公开(公告)日：2019-08-20

申请号：US15037455

申请日：2014-11-19

Applicant: LEICA MICROSYSTEMS CMS GMBH

Inventor： Vishnu Vardhan Krishnamachari ,  Volker Seyfried ,  William C. Hay

IPC: G01N21/65 ,  G01J3/44 ,  G01J3/02 ,  G01J3/10

Abstract: A Raman microscopy imaging device (100) is described, having: a first laser light source (12) for emitting a first laser beam (16) having a first wavelength along a first light path (20); a second laser light source (44) for emitting a second laser beam (18) having a second wavelength, different from the first wavelength, along a second light path (22) physically separated from the first light path (20); a beam combining element (32) for collinearly combining the two laser beams (16, 18) in one shared light path (34) directed onto a sample; a detector (38) for sensing a measured signal on the basis of the two laser beams (16, 18) interacting with the sample; and an evaluation unit (40) for evaluating the measured signal sensed by the detector (38). According to the present invention the first laser light source (12) is embodied as a pulsed source, and the second laser light source (44) as a continuous source.