公开(公告)号：US11346715B2

公开(公告)日：2022-05-31

申请号：US16864786

申请日：2020-05-01

Applicant: Kaiser Optical Systems Inc.

Inventor： Timothy Norwood ,  Joseph B. Slater

IPC: G01J3/02 ,  G01J3/42 ,  G01J3/44

Abstract: A standard reference material interface for a Raman probe includes a locator including a housing having a first end and a second end, the first end including an attachment portion configured to mate with an attachment portion of the Raman probe. The locator defines a central axis that intersects the first end and the second end. The standard reference material interface also includes a hermetically sealed standard reference material enclosure positioned at the second end of the housing and enclosing a standard reference material. An optical port is positioned within the housing between the Raman probe and the standard reference material relative to the central axis. The optical port includes a window.

公开(公告)号：US11340111B2

公开(公告)日：2022-05-24

申请号：US17247789

申请日：2020-12-23

Applicant: VIAVI Solutions Inc.

Inventor： William D. Houck ,  Valton Smith

IPC: G01J3/02 ,  G01S17/08 ,  G01J3/42

Abstract: A device may determine a time-of-flight measurement by performing a sample of a sensor based on light received via at least one first spectral filter, wherein the at least one first spectral filter is associated with a spectral range for a time-of-flight measurement; determine that a condition is satisfied with regard to the time-of-flight measurement, wherein the condition relates to an orientation or a position of the sensor or the sensor device relative to a measurement target; trigger a spectrometry measurement to be performed based on determining that the condition is satisfied with regard to the time-of-flight measurement; and perform, based on light received via at least one second spectral filter and by performing a sample of the sensor, the spectrometry measurement for the measurement target based on the condition being satisfied with regard to the time-of-flight measurement.

公开(公告)号：US11327008B2

公开(公告)日：2022-05-10

申请号：US16677769

申请日：2019-11-08

Applicant: Mettler-Toledo GmbH

Inventor： Francesca Venturini ,  Pär Bergström ,  Martin Hertel

IPC: G01N21/3504 ,  G01J3/02 ,  G01J3/10 ,  G01J3/42 ,  G01N21/03 ,  G01N21/39

Abstract: A gas measurement system as disclosed can include a coherent light source, which emits a light beam; a detector; a beam path formed between the light source) and the detector; and a gas cell arranged in the beam path such that the detector receives light transmitted through the gas cell. The gas cell can include a porous ceramic and have an optical path length which is a multiple of the actual layer thickness of the gas cell. A optical element can be arranged in the beam path between the light source and the gas cell with the light beam emitted by the light being widened and unfocussed as the light beam enters the gas cell.

公开(公告)号：US20220136899A1

公开(公告)日：2022-05-05

申请号：US17576117

申请日：2022-01-14

Applicant: Apple Inc.

Inventor： Mark Alan Arbore ,  Gary Shambat ,  Matthew A. Terrel

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01N21/49

Abstract: Systems and methods for determining one or more properties of a sample are disclosed. The systems and methods disclosed can be capable of measuring along multiple locations and can reimage and resolve multiple optical paths within the sample. The system can be configured with one-layer or two-layers of optics suitable for a compact system. The optics can be simplified to reduce the number and complexity of the coated optical surfaces, et al. on effects, manufacturing tolerance stack-up problems, and interference-based spectroscopic errors. The size, number, and placement of the optics can enable multiple simultaneous or non-simultaneous measurements at various locations across and within the sample. Moreover, the systems can be configured with an optical spacer window located between the sample and the optics, and methods to account for changes in optical paths due to inclusion of the optical spacer window are disclosed.

公开(公告)号：US11307148B2

公开(公告)日：2022-04-19

申请号：US16731618

申请日：2019-12-31

Applicant: SAAM, Inc.

Inventor： John Coates

IPC: G01N21/85 ,  G01J3/00 ,  G01J3/02 ,  G01J3/36 ,  G01J3/42 ,  G01N21/25 ,  G01J3/457 ,  G01N21/359

Abstract: A small scale and low cost spectral sensing system designed primarily for multi-component fluids that provides a compact, low cost platform for analyzers or chemical sensors with limited number of optical and mechanical components featuring a light source, an optical interface with the sample, and a custom detector (multi-element). A single detector element has a specific wavelength, defined by a filter that can be used to select and measure specific chemical compounds. Multiple detector elements are combined to create a multi-channel detector capable of measuring a broad range of wavelengths from ultraviolet (UV) to near and mid-infrared wavelengths. The fabricated sensor can be configured for almost any class of material including gases, vapors, and liquids, with extension to solids. This is linked to the use of the custom detectors featuring filters tailored to specific substances in a broad spectral range from the UV to infrared.

公开(公告)号：US11274966B2

公开(公告)日：2022-03-15

申请号：US16780638

申请日：2020-02-03

Applicant: SEOUL VIOSYS CO., LTD.

Inventor： Seong Tae Jang ,  Stella Park ,  Sung Il Park ,  Ji Ye Song ,  Woong Ki Jeong

IPC: G01J3/42 ,  G02B7/02 ,  A61B5/00 ,  G01N21/31 ,  G01J3/28 ,  G01J3/02 ,  G01J3/10 ,  G02B6/12 ,  G01N21/64 ,  G01N21/27

Abstract: In one aspect, a hyperspectral image measurement device is provided to include: a main body; an illumination module disposed in the main body and including LEDs having different peak wavelengths to irradiate light to a subject; a camera disposed on the main body and receiving light reflected from the subject to acquire an image of the subject; a barrel having a contact surface contacting the subject, the contact surface located to be spaced apart from the illumination module and the camera module by a predetermined distance; and a reference cover located on the contact surface and including a standard reflection layer for reflecting light irradiated from the illumination module toward the camera module.

公开(公告)号：US20220065697A1

公开(公告)日：2022-03-03

申请号：US17406653

申请日：2021-08-19

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Kodai Murayama ,  Toshiyuki Saruya ,  Fumie Watanabe ,  Risa Hara

IPC: G01J3/42 ,  G01J3/02 ,  G01N21/359

Abstract: A spectroscopic analysis device includes: a film that contacts a sample subject to spectroscopic analysis; a first irradiator that irradiates a first irradiation light having transition energy to decompose attached material attached to a boundary surface of the film; and an optical waveguide that transmits the first irradiation light irradiated from the first irradiator. A first evanescent wave, based on the first irradiation light, is generated on a front surface of the optical waveguide, and is then projected on an attached region of the attached material.

公开(公告)号：US20220054012A1

公开(公告)日：2022-02-24

申请号：US17462824

申请日：2021-08-31

Applicant: The Trustees of Columbia University in the City of New York

Inventor： Elizabeth Marjorie Clare Hillman ,  Sean A. BURGESS

IPC: A61B5/00 ,  G01J3/28 ,  G01J3/42 ,  G01J3/457 ,  G02B23/24 ,  G02B26/10

Abstract: Optical imaging or spectroscopy described can use laminar optical tomography (LOT), diffuse correlation spectroscopy (DCS), or the like. An incident beam is scanned across a target. An orthogonal or oblique optical response can be obtained, such as concurrently at different distances from the incident beam. The optical response from multiple incident wavelengths can be concurrently obtained by dispersing the response wavelengths in a direction orthogonal to the response distances from the incident beam. Temporal correlation can be measured, from which flow and other parameters can be computed. An optical conduit can enable endoscopic or laparoscopic imaging or spectroscopy of internal target locations. An articulating arm can communicate the light for performing the LOT, DCS, or the like. The imaging can find use for skin cancer diagnosis, such as distinguishing lentigo maligna (LM) from lentigo maligna melanoma (LMM).

公开(公告)号：US11241176B2

公开(公告)日：2022-02-08

申请号：US16541576

申请日：2019-08-15

Applicant: Fresenius Medical Care Holdings, Inc.

Inventor： Louis LeeGrande Barrett

IPC: A61B5/1455 ,  G01N33/49 ,  G01N21/27 ,  G01J1/02 ,  G01J3/02 ,  G01J3/28 ,  G01J3/42 ,  G01N15/06 ,  G01N21/31 ,  G01N21/3577 ,  A61B5/00 ,  G01J1/44 ,  G01N15/00

Abstract: A measurement system for measuring blood characteristics includes a controller, an emitter, a sensor, and a reference sensor. The emitter emits light at a plurality of wavelengths from a first side of a blood flow channel to a second side of the blood flow channel. The sensor is provided on the second side of the blood flow channel. The reference sensor is provided on the first side of the blood flow channel. The controller compensates measurements from the sensor based upon measurements from the reference sensor. The reference sensor may be disposed in a position to increase noise immunity of the measurement system. The measurement system may be connected to or part of a dialysis system.

公开(公告)号：US11241156B2

公开(公告)日：2022-02-08

申请号：US17135233

申请日：2020-12-28

Applicant: Omni Medsci, Inc.

Inventor： Mohammed N. Islam

IPC: G01J3/00 ,  A61B5/00 ,  A61C19/04 ,  G16Z99/00 ,  G16H40/67 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/02 ,  G01J3/10 ,  G01J3/14 ,  G01J3/28 ,  G01J3/42 ,  G01J3/453 ,  G01N21/35 ,  G01N21/3563 ,  G01N21/359 ,  G01N21/39 ,  G01N21/88 ,  G01N33/02 ,  G01N33/15 ,  G01N33/44 ,  G01N33/49 ,  H01S3/067 ,  H01S3/00 ,  A61C1/00 ,  G01J3/18 ,  G01J3/12 ,  G01M3/38 ,  G01N21/85 ,  G01N21/95 ,  H01S3/30

Abstract: A measurement system is provided with an array of laser diodes with one or more Bragg reflectors. At least a portion of the light generated by the array is configured to penetrate tissue comprising skin. A detection system configured to: measure a phase shift, and a time-of-flight, of at least a portion of the light from the array of laser diodes reflected from the tissue relative to the portion of the light generated by the array; generate one or more images of the tissue; detect oxy- or deoxy-hemoglobin in the tissue; non-invasively measure blood in blood vessels within or below a dermis layer within the skin; measure one or more physiological parameters based at least in part on the non-invasively measured blood; and measure a variation in the blood or physiological parameter over a period of time.