公开(公告)号：US20250027813A1

公开(公告)日：2025-01-23

申请号：US18908626

申请日：2024-10-07

Applicant: Apple Inc.

Inventor： Mark Alan Arbore ,  Thomas C. Greening ,  Yongming Tu

IPC: G01J3/02 ,  G01J3/10 ,  G01J3/18 ,  G01J3/32 ,  G01J3/45 ,  G02B6/293 ,  G02B6/42 ,  G02B27/10 ,  G02F1/21

Abstract: Configurations for light source modules and methods for mitigating coherent noise are disclosed. The light source modules may include multiple light source sets, each of which may include multiple light sources. The light emitted by the light sources may be different wavelengths or the same wavelength depending on whether the light source module is providing redundancy of light sources, increased power, coherent noise mitigation, and/or detector mitigation. In some examples, the light source may emit light to a coupler or a multiplexer, which may then be transmitted to one or more multiplexers. In some examples, the light source modules provide one light output and in other examples, the light source modules provide two light outputs. The light source modules may provide light with approximately zero loss and the wavelengths of light may be close enough to spectroscopically equivalent respect to a sample and far enough apart to provide coherent noise mitigation.

公开(公告)号：US11585749B2

公开(公告)日：2023-02-21

申请号：US17063483

申请日：2020-10-05

Applicant: Apple Inc.

Inventor： Miikka M. Kangas ,  Mark Alan Arbore ,  David I. Simon ,  Michael J. Bishop ,  James W. Hillendahl ,  Robert Chen

IPC: G01N21/27 ,  G01N21/35 ,  G01N21/47 ,  G01J3/32 ,  G01J3/36 ,  G01J3/433 ,  G01J3/447 ,  G01J3/02 ,  G01J3/42 ,  G01N21/49 ,  G01N21/21

Abstract: This relates to systems and methods for measuring a concentration and type of substance in a sample at a sampling interface. The systems can include a light source, optics, one or more modulators, a reference, a detector, and a controller. The systems and methods disclosed can be capable of accounting for drift originating from the light source, one or more optics, and the detector by sharing one or more components between different measurement light paths. Additionally, the systems can be capable of differentiating between different types of drift and eliminating erroneous measurements due to stray light with the placement of one or more modulators between the light source and the sample or reference. Furthermore, the systems can be capable of detecting the substance along various locations and depths within the sample by mapping a detector pixel and a microoptics to the location and depth in the sample.

公开(公告)号：US11287409B2

公开(公告)日：2022-03-29

申请号：US16773856

申请日：2020-01-27

Applicant: REBELLION PHOTONICS, INC.

Inventor： Robert Timothy Kester ,  Nathan Adrian Hagen

IPC: H04N5/33 ,  G01N21/3504 ,  G01J5/00 ,  G01J3/28 ,  G01J3/32 ,  G01J3/36 ,  G01J5/52 ,  G01J3/02 ,  G01J5/08 ,  G01J5/60 ,  G01J3/42 ,  G01J3/12 ,  G01N33/00 ,  H04N17/00 ,  G01J5/0806

Abstract: Various embodiments disclosed herein describe an infrared (IR) imaging system for detecting a gas. The imaging system can include an optical filter that selectively passes light having a wavelength in a range of 1585 nm to 1595 nm while attenuating light at wavelengths above 1600 nm and below 1580 nm. The system can include an optical detector array sensitive to light having a wavelength of 1590 that is positioned rear of the optical filter.

公开(公告)号：US20220082439A1

公开(公告)日：2022-03-17

申请号：US17423948

申请日：2019-12-20

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Kazuya IGUCHI ,  Hideki MASUOKA

IPC: G01J3/32

Abstract: A spectroscopic measurement apparatus includes an optical system, a photodetector, and an analysis unit. The optical system guides measurement target light from an object to a light receiving surface of the photodetector, and forms a spectral image of the measurement target light on the light receiving. The photodetector includes the light receiving surface on which a plurality of pixels are arranged respectively on a plurality of rows. The photodetector receives the spectral image for a first exposure time by a plurality of pixels in a first region on the light receiving surface, and outputs first spectrum data. The photodetector receives the spectral image for a second exposure time by a plurality of pixels in a second region on the light receiving surface, and outputs second spectrum data. The second exposure time is longer than the first exposure time.

公开(公告)号：US20210369119A1

公开(公告)日：2021-12-02

申请号：US16949466

申请日：2020-10-30

Applicant: Colgate-Palmolive Company

Inventor： Deborah Ann Peru ,  Hrebesh Molly Subhash

IPC: A61B5/00 ,  G01J3/02 ,  G02B6/04 ,  G01J3/06 ,  A61B5/145 ,  A61B5/1455 ,  G01J3/08 ,  G01J3/10 ,  G01N21/25 ,  G01J3/18 ,  G01J3/36 ,  G01N21/31 ,  G01J3/32

Abstract: A spectroscopic system may include: a probe having a probe tip and an optical coupler, the optical coupler including an emitting fiber group and first and second receiving fiber groups, each fiber group having a first end and a second end, wherein the first ends of the fiber groups are formed into a bundle and optically exposed through the probe tip; a light source optically coupled to the second end of the emitting fiber group, the light source emitting light in at least a first waveband and a second waveband, the second waveband being different from the first waveband; a first spectrometer optically coupled to the second end of the first receiving fiber group and configured to process light in the first waveband; and a second spectrometer optically coupled to the second end of the second receiving fiber group and configured to process light in the second waveband.

公开(公告)号：US11092492B2

公开(公告)日：2021-08-17

申请号：US16648187

申请日：2018-09-20

Applicant: Unispectral Ltd.

Inventor： Ariel Raz ,  Efrat Immer

IPC: G01J3/32 ,  G01J3/28 ,  H04N5/225 ,  H04N5/235

Abstract: Some embodiments are directed to an imaging that includes an image sensor; a tunable filter; and a controller operatively connected to the tunable filter and to the image sensor. The imaging system is configured to: tune the tunable filter to a plurality of filter states. The image sensor acquires, at each state of the plurality of states, an image of an object, to provide different images of the object. The controller calculates a state related score, for each state that is indicative of one or more properties of at least one subset of pixels of the at least one image acquired at the state, to provide a plurality of state related scores; and determines, based on at least one of the plurality of state related scores, a desired state of the tunable filter that satisfies a desired state related score criterion; and sets the tunable filter.

公开(公告)号：US20210114748A1

公开(公告)日：2021-04-22

申请号：US16953752

申请日：2020-11-20

Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY

Inventor： Yukihiro TAKAHASHI ,  Junichi KURIHARA ,  Tetsuro ISHIDA

IPC: B64D47/08 ,  B64C27/04 ,  B64C39/02 ,  G01J3/51 ,  G02F1/13 ,  G01J3/02 ,  G01N21/31 ,  G01J3/28 ,  G01J3/32 ,  G01J3/12 ,  G02F1/1335

Abstract: A spectral camera control device, being installed, along with a spectral camera provided with a liquid crystal tunable filter, in an aircraft capable of stationary flight. The spectral camera control device causes the spectral camera to capture a spectral image in a snapshot mode each time a transmission wavelength of the liquid crystal tunable filter is switched while the aircraft is in stationary flight, and the spectral camera control device causes a plurality of spectral images to be captured in succession at a same transmission wavelength when an SN ratio of the captured spectral image is less than a predetermined threshold.

公开(公告)号：US10948715B2

公开(公告)日：2021-03-16

申请号：US16557538

申请日：2019-08-30

Applicant: Brandon Hellman

Inventor： Brandon Hellman

IPC: B01J3/02 ,  G01J3/28 ,  G01J3/32 ,  G02B27/00 ,  G02B9/10 ,  H04N5/225 ,  H04N9/04 ,  G02B27/30 ,  G01J3/02

Abstract: A camera system for providing multispectral imaging of an object, the camera system having a longitudinal axis. The camera system comprises a quasi-collimating lens capable of receiving light from the object and separating wavelengths of the light. Each wavelength is projected to one of a plurality of intermediate image locations which are separated along the longitudinal axis. The system also comprises an achromatic imaging lens to receive the projected wavelengths of light from the quasi-collimating lens, and a pixelated detector positioned to receive the light from the achromatic imaging lens. The achromatic imaging lens and the pixelated detector are movable relative to one another in the direction of the longitudinal axis. The system is configured such that the projected wavelengths of light each form a corresponding image, the images formed on the detector when different distances within the range are achieved.

公开(公告)号：US20210018432A1

公开(公告)日：2021-01-21

申请号：US17063483

申请日：2020-10-05

Applicant: Apple Inc.

Inventor： Miikka M. Kangas ,  Mark Alan Arbore ,  David I. Simon ,  Michael J. Bishop ,  James W. Hillendahl ,  Robert Chen

IPC: G01N21/27 ,  G01N21/35 ,  G01N21/47 ,  G01J3/32 ,  G01J3/36 ,  G01J3/433 ,  G01J3/447 ,  G01J3/02 ,  G01J3/42

Abstract: This relates to systems and methods for measuring a concentration and type of substance in a sample at a sampling interface. The systems can include a light source, optics, one or more modulators, a reference, a detector, and a controller. The systems and methods disclosed can be capable of accounting for drift originating from the light source, one or more optics, and the detector by sharing one or more components between different measurement light paths. Additionally, the systems can be capable of differentiating between different types of drift and eliminating erroneous measurements due to stray light with the placement of one or more modulators between the light source and the sample or reference. Furthermore, the systems can be capable of detecting the substance along various locations and depths within the sample by mapping a detector pixel and a microoptics to the location and depth in the sample.

公开(公告)号：US10816401B2

公开(公告)日：2020-10-27

申请号：US15721980

申请日：2017-10-02

Applicant: Microsanj, LLC

Inventor： Dustin Kendig ,  Ali Shakouri ,  Hamid Piroozi

IPC: G01J3/28 ,  G01N25/18 ,  G01J3/32 ,  G01J3/10 ,  H04N5/365 ,  H04N5/33 ,  G01J5/02 ,  G01J5/00 ,  H04N17/00

Abstract: A method for providing a high spatial resolution thermal imaging of an active electronic device. The method includes placing an electronic device on a testing stage of an imaging system. The method, calibrating the imaging system by determining thermoreflectance coefficient for a plurality of pixels forming thermal images, each pixel having a coordinate (x,y) captured from the electronic device at each of a plurality of wavelengths of illumination (CTRi(x,y,λi), activating the electronic device, and determining changes in reflection for each of the plurality of pixels at each of the plurality of wavelengths (ΔR/R), determining ΔR/R vs. CTRi(x,y,λi) for each of the plurality of pixels for each of the plurality of wavelengths, fitting ΔR/R vs. CTRi(x,y,λi) to a predetermined mathematical function and use the parameters to calculate the temperature at each pixel.