公开(公告)号：US4875773A

公开(公告)日：1989-10-24

申请号：US191262

申请日：1988-05-06

Applicant: Richard Burns ,  James Defendorf ,  Edward King ,  Cornelius McCarthy

Inventor： Richard Burns ,  James Defendorf ,  Edward King ,  Cornelius McCarthy

IPC: G01J3/18 ,  G01J3/04 ,  G01J3/10 ,  G01J3/12 ,  G01J3/28 ,  G01J3/42 ,  G01J3/44 ,  G01J3/443 ,  G01N21/31

CPC classification number: G01J3/04 ,  G01J3/02 ,  G01J3/0294 ,  G01J3/12 ,  G01J3/2803 ,  G01J2003/045 ,  G01J2003/102 ,  G01J2003/1204 ,  G01J2003/1295 ,  G01J2003/1828 ,  G01J2003/425 ,  G01J3/1838 ,  G01J3/42 ,  G01J3/4406 ,  G01J3/443 ,  G01N2021/174 ,  G01N2021/3129

Abstract: An optical system for a multidetector array spectrophotometer which includes multiple light sources for emitting light of selected wavelength ranges and means for selectively transmitting the selected wavelength ranges of light to respective slits of a multi-slit spectrograph for multiple wavelength range detection. The spectrograph has two or more slits which direct the selected wavelength ranges of the light spectra to fall upon a dispersive and focusing system which collects light from each slit, disperses the light by wavelength and refocuses the light at the positions of a single set of detectors.

公开(公告)号：US12111210B2

公开(公告)日：2024-10-08

申请号：US17859912

申请日：2022-07-07

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

CPC classification number: G01J3/0297 ,  G01J3/10 ,  G01J3/108 ,  G01J3/1809 ,  G01J3/32 ,  G01J3/45 ,  G02B6/2938 ,  G02B6/4215 ,  G02B27/10 ,  G01J2003/102 ,  G02F1/212

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：US12104957B2

公开(公告)日：2024-10-01

申请号：US17620408

申请日：2020-06-25

Applicant: Protea Ltd

Inventor： Chris Daw ,  Robin Hutchinson

IPC: G01J3/427 ,  G01J3/02 ,  G01J3/10 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/00 ,  G01N21/31

CPC classification number: G01J3/427 ,  G01J3/0218 ,  G01J3/108 ,  G01J3/12 ,  G01N21/33 ,  G01N21/3504 ,  G01N33/0037 ,  G01N33/0042 ,  G01J2003/102 ,  G01J2003/1213 ,  G01N2021/3155 ,  G01N2201/08

Abstract: The invention relates to a photometer (30) for analysing the composition of a sample gas. The photometer comprises an infra-red (IR) source (20) configured to direct a first plurality of pulses (40) of IR radiation through the sample gas to an IR detector (26), at least two of the first plurality of pulses being of different wavelength. The photometer further comprises an ultraviolet (UV) source (32) configured to generate a second plurality of pulses (38) of UV radiation for conveyance to a UV detector (36), at least two of the second plurality of pulses being of different wavelength. A path selection arrangement (22, 42-50) is configured to selectively convey different ones of the second plurality of pulses (38) to one of the sample gas and the UV detector (36). The photometer further comprises processing circuitry coupled to the IR source (20), the UV source (32), the IR detector (26), the UV detector (36) and the path selection arrangement (22, 42-50). The processing circuitry is configured to (i) select the wavelength to be used for a given UV pulse of the second plurality of pulses (38), (ii) receive a plurality of detection signals from each of the IR detector (26) and the UV detector (36) and (iii) based on the detection signals, determine a concentration of at least one component of the sample gas. A method for analysing the composition of a sample gas is also disclosed.

公开(公告)号：US12025499B2

公开(公告)日：2024-07-02

申请号：US17616794

申请日：2020-06-05

Applicant: Aweta G&P B.V.

Inventor： Johannes Cornelis De Geus ,  Valéry Jean Georges Quenon

IPC: G01J3/42 ,  G01J3/02 ,  G01J3/10 ,  G01N21/84 ,  G01N33/02 ,  G01N21/31 ,  G01N21/85

CPC classification number: G01J3/42 ,  G01J3/0202 ,  G01J3/0218 ,  G01J3/0289 ,  G01J3/10 ,  G01J2003/102 ,  G01N21/31 ,  G01N21/84 ,  G01N2021/845 ,  G01N2021/8466 ,  G01N2021/8592 ,  G01N33/025 ,  G01N2201/0833

Abstract: Apparatus for determining a property of products, in particular plant or animal products, the apparatus comprising: a conveyor configured for conveying products one-by-one along a transport path in a transport direction; a light source configured for illuminating a first illumination area of the transport path, wherein the first illumination area extends substantially across the transverse width of the transport path; and a sensor structure configured for receiving light from a sensing area of the transport path, wherein the sensing area extends substantially across the transverse width of the transport path, wherein the sensing area is adjacent to the first illumination area.

公开(公告)号：US20230236117A1

公开(公告)日：2023-07-27

申请号：US18011992

申请日：2021-06-24

Applicant: RUBENS IP PTY LTD

Inventor： Daniele PELLICCIA

IPC: G01N21/33 ,  G01N21/35 ,  G01N21/47 ,  G01J3/02 ,  G01J3/44

CPC classification number: G01N21/33 ,  G01N21/35 ,  G01N21/4738 ,  G01J3/0224 ,  G01J3/0291 ,  G01J3/4406 ,  G01N2021/4792 ,  G01J2003/102

Abstract: A method for detecting at least one property of a plant product, the method including: directing source light including ultraviolet (UV) light at UV wavelengths and polarized visible and/or near-infrared (VIS/NIR) light at VIS/NIR wavelengths onto a region of the plant product; blocking the polarized VIS/NIR light of the source light, and blocking polarized specular reflection from the region of the plant product, from being transmitted to a visible and/or near-infrared (VIS/NIR) spectrometer; and transmitting a portion of emitted light caused by fluorescence and/or diffuse reflection from the region of the plant product to the visible and/or near-infrared (VIS/NIR) spectrometer.

公开(公告)号：US20180328786A1

公开(公告)日：2018-11-15

申请号：US15983019

申请日：2018-05-17

Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY

Inventor： James L. LAMBERT

IPC: G01J3/44 ,  G01J3/28 ,  G01J3/10 ,  G01J3/02

CPC classification number: G01J3/44 ,  G01J3/0208 ,  G01J3/0224 ,  G01J3/0227 ,  G01J3/0237 ,  G01J3/0248 ,  G01J3/10 ,  G01J3/18 ,  G01J3/28 ,  G01J3/2823 ,  G01J3/4406 ,  G01J2003/102

Abstract: Methods and systems for Raman spectroscopy and context imaging are disclosed. One or two lasers can be used to excite Raman scattering in a sample, while a plurality of LEDs can illuminate the sample at a different wavelength. The LED light is collected by a lenslet array in order to enable a high depth of field. Focusing of the image can be carried out at specific points of the image by processing the light collected by the lenslet array.

公开(公告)号：US20180252579A1

公开(公告)日：2018-09-06

申请号：US15825303

申请日：2017-11-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Hyun Seo KANG ,  Jeong Eun KIM ,  Jaisang KOH ,  Keo-Sik KIM ,  Sung Chang KIM ,  Hee Seung KIM ,  Ji Hyoung RYU ,  Hyoungjun PARK ,  Dong Hoon SON ,  CHAN IL YEO ,  Young Soon HEO

IPC: G01J3/02 ,  G01J3/10 ,  G09G3/20

CPC classification number: G01J3/0227 ,  G01J3/10 ,  G01J2003/102 ,  G09G3/2003

Abstract: An integrated optical measurement apparatus includes: an optical signal transmission unit varying a wavelength of an optical signal to be transmitted and controlling power of the optical signal such that the wavelength is varied to be output to the outside; an optical signal receiving unit measuring power and a wavelength from the optical signal input from the outside; and a controller controlling the optical signal transmission unit and the optical signal receiving unit.

公开(公告)号：US20180217067A1

公开(公告)日：2018-08-02

申请号：US15747812

申请日：2016-10-14

Applicant: Scott M. GALLAGER ,  Woods Hole Oceanographic Institution

Inventor： Scott M. Gallager

IPC: G01N21/65 ,  G01N21/85 ,  G01J3/02 ,  G01J3/44 ,  G01N33/18

CPC classification number: G01N21/65 ,  G01J3/0294 ,  G01J3/44 ,  G01J2003/102 ,  G01J2003/104 ,  G01N21/8507 ,  G01N33/18 ,  G01N33/1826 ,  G01N2201/0218 ,  G01N2201/0221

Abstract: The present invention is directed toward the early detection of harmful algal blooms. The system employs the ability of whole cell non-contact micro Raman spectroscopy to detect cell pigmentation in such a way that distinct patterns or fingerprints can be assembled. Light field microscopy will provide a fundamentally innovative increase in image and sample volume. Furthermore, darkfield microscopy is employed to capture high-resolution, color images of the detected plankton to increase the accuracy of species identification and classification. Together, this new instrument will provide a powerful yet elegantly simple solution to detection of HAB cells and characterization of environmental conditions.

公开(公告)号：US20180188110A1

公开(公告)日：2018-07-05

申请号：US15857283

申请日：2017-12-28

Applicant: VERIFOOD, LTD.

Inventor： Damian GOLDRING ,  Elad HEIMAN ,  Idan BAKISH ,  Ittai NIR ,  Sagee ROSEN ,  Uri KINROT

IPC: G01J3/26 ,  G01J3/02

CPC classification number: G01J3/26 ,  G01J3/0205 ,  G01J3/0213 ,  G01J3/0229 ,  G01J3/0262 ,  G01J3/027 ,  G01J3/0286 ,  G01J3/0289 ,  G01J3/10 ,  G01J2001/4242 ,  G01J2003/102

Abstract: Apparatus and methods for providing an improved Fabry-Perot interferometer (FPI)-based spectrometer are disclosed herein. The improved FPI-based spectrometer may comprise one or more of a variety of improvements to allow improved sensitivity while retaining high spectral resolution, to limit the susceptibility to stray light, and to limit the degradation in performance due to temporal instabilities in the light source.

公开(公告)号：US10012542B2

公开(公告)日：2018-07-03

申请号：US15594345

申请日：2017-05-12

Applicant: TruTag Technologies, Inc.

Inventor： Timothy Learmonth ,  Hod Finkelstein

IPC: G01J3/45 ,  G01J3/26 ,  G01J3/02 ,  G01J3/10 ,  G01N21/25 ,  G01N21/27

CPC classification number: G01J3/26 ,  B82Y20/00 ,  G01J3/0208 ,  G01J3/0237 ,  G01J3/0259 ,  G01J3/0272 ,  G01J3/10 ,  G01J2003/102 ,  G01N21/255 ,  G01N21/27 ,  G01N2201/061 ,  G01N2201/0636

Abstract: A system for wide-range spectral measurement includes one or more broadband sources, an adjustable Fabry-Perot etalon, and a detector. The one or more broadband sources is to illuminate a sample, wherein the one or more broadband sources have a short broadband source coherence length. The adjustable Fabry-Perot etalon is to optically process the reflected light to extract spectral information with fine spectral resolution. The detector is to detect reflected light from the sample, wherein the reflected light is comprised of multiple narrow-band subsets of the illumination light having long coherence lengths and is optically processed using a plurality of settings for the adjustable Fabry-Perot etalon, and wherein the plurality of settings includes a separation of the Fabry-Perot etalon plates that is greater than the broadband source coherence length.