GB2625331A - Improvements in and relating to spectral sensing - Google Patents

Improvements in and relating to spectral sensing Download PDF

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Publication number
GB2625331A
GB2625331A GB2218844.5A GB202218844A GB2625331A GB 2625331 A GB2625331 A GB 2625331A GB 202218844 A GB202218844 A GB 202218844A GB 2625331 A GB2625331 A GB 2625331A
Authority
GB
United Kingdom
Prior art keywords
optical
optical radiation
intensity
image
illumination sources
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB2218844.5A
Other languages
English (en)
Other versions
GB202218844D0 (en
Inventor
John Lamb William
Bruce Pilkington Alexander
Payne Bernard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dyson Technology Ltd
Original Assignee
Dyson Technology Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dyson Technology Ltd filed Critical Dyson Technology Ltd
Priority to GB2218844.5A priority Critical patent/GB2625331A/en
Publication of GB202218844D0 publication Critical patent/GB202218844D0/en
Priority to PCT/IB2023/062622 priority patent/WO2024127274A1/fr
Publication of GB2625331A publication Critical patent/GB2625331A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/42Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02Details
    • G01J3/10Arrangements of light sources specially adapted for spectrometry or colorimetry
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/2823Imaging spectrometer
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/42Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/433Modulation spectrometry; Derivative spectrometry
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/02Details
    • G01J3/10Arrangements of light sources specially adapted for spectrometry or colorimetry
    • G01J2003/102Plural sources
    • G01J2003/104Monochromatic plural sources
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/2823Imaging spectrometer
    • G01J2003/2826Multispectral imaging, e.g. filter imaging
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/42Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J2003/425Reflectance
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28Investigating the spectrum
    • G01J3/42Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • G01J3/433Modulation spectrometry; Derivative spectrometry
    • G01J2003/4334Modulation spectrometry; Derivative spectrometry by modulation of source, e.g. current modulation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N2021/1757Time modulation of light being essential to the method of light modification, e.g. using single detector

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB2218844.5A 2022-12-14 2022-12-14 Improvements in and relating to spectral sensing Pending GB2625331A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2218844.5A GB2625331A (en) 2022-12-14 2022-12-14 Improvements in and relating to spectral sensing
PCT/IB2023/062622 WO2024127274A1 (fr) 2022-12-14 2023-12-13 Améliorations dans la détection spectrale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2218844.5A GB2625331A (en) 2022-12-14 2022-12-14 Improvements in and relating to spectral sensing

Publications (2)

Publication Number Publication Date
GB202218844D0 GB202218844D0 (en) 2023-01-25
GB2625331A true GB2625331A (en) 2024-06-19

Family

ID=84974603

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2218844.5A Pending GB2625331A (en) 2022-12-14 2022-12-14 Improvements in and relating to spectral sensing

Country Status (2)

Country Link
GB (1) GB2625331A (fr)
WO (1) WO2024127274A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041833B1 (en) * 2016-04-05 2018-08-07 The United States of America as Represented by the Adminstrator of the NASA System and method for active multispectral imaging and optical communications
CN114441035A (zh) * 2021-12-31 2022-05-06 复旦大学 基于高速可调多色led光源的多光谱成像方法及装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014002514B4 (de) * 2014-02-21 2015-10-29 Universität Stuttgart Vorrichtung und Verfahren zur multi- oder hyperspektralen Bildgebung und / oder zur Distanz- und / oder 2-D oder 3-D Profilmessung eines Objekts mittels Spektrometrie

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10041833B1 (en) * 2016-04-05 2018-08-07 The United States of America as Represented by the Adminstrator of the NASA System and method for active multispectral imaging and optical communications
CN114441035A (zh) * 2021-12-31 2022-05-06 复旦大学 基于高速可调多色led光源的多光谱成像方法及装置

Also Published As

Publication number Publication date
GB202218844D0 (en) 2023-01-25
WO2024127274A1 (fr) 2024-06-20

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