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1. (WO2019025759) CODED APERTURE SPECTRAL IMAGING DEVICE
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Pub. No.: WO/2019/025759 International Application No.: PCT/GB2018/052064
Publication Date: 07.02.2019 International Filing Date: 23.07.2018
IPC:
G01J 3/28 (2006.01) ,G01J 3/02 (2006.01) ,G01J 3/18 (2006.01)
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
28
Investigating the spectrum
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
02
Details
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
12
Generating the spectrum; Monochromators
18
using diffraction elements, e.g. grating
Applicants:
OXFORD UNIVERSITY INNOVATION LIMITED [GB/GB]; Buston Court 3 West Way Botley Oxford Oxfordshire OX2 0JB, GB
Inventors:
KASIM, Muhammad Firmansyah; GB
NORREYS, Peter; GB
Agent:
BARKER BRETTELL LLP; 100 Hagley Road Edgbaston Birmingham West Midlands B16 8QQ, GB
Priority Data:
1712357.101.08.2017GB
Title (EN) CODED APERTURE SPECTRAL IMAGING DEVICE
(FR) DISPOSITIF D’IMAGERIE SPECTRALE À OUVERTURE CODÉE
Abstract:
(EN) An imaging spectrometer (100) is provided, comprising: an entrance opening (101) configured to admit light to the spectrometer (100), a coded aperture (120), at least one dispersive element (111, 112), a two-dimensional array detector (130), and a plurality of converging optical elements (121, 122, 123, 124). The plurality of converging optical elements (121, 122, 123, 124) are configured to focus light from the entrance opening (101) at the coded aperture (120), and to focus light from the coded aperture (120) at the detector (130). The coded aperture (120) is arranged to modulate light from the entrance opening (101) in at least one of the spatial and spectral domain. The at least one dispersive element (111, 112) comprises a dispersive element (111, 112) between the coded aperture (120) and the detector (130). The at least one converging optical element (121, 122, 123, 124) comprises at least one concave reflector.
(FR) La présente invention concerne un spectromètre d’imagerie (100) qui comprend : une ouverture d’entrée (101) configurée pour recevoir de la lumière dans le spectromètre (100), une ouverture codée (120), au moins un élément dispersif (111, 112), un détecteur matriciel bidimensionnel (130), et une pluralité d’éléments optiques convergents (121, 122, 123, 124). La pluralité d’éléments optiques convergents (121, 122, 123, 124) sont configurés pour focaliser la lumière provenant de l’ouverture d’entrée (101) au niveau de l’ouverture codée (120), et pour focaliser la lumière provenant de l’ouverture codée (120) au niveau du détecteur (130). L’ouverture codée (120) est agencée pour moduler la lumière provenant de l’ouverture d’entrée (101) dans au moins l’un du domaine spatial et spectral. L’au moins un élément dispersif (111, 112) comprend un élément dispersif (111, 112) entre l’ouverture codée (120) et le détecteur (130). L’au moins un élément optique convergent (121, 122, 123 124) comprend au moins un réflecteur concave.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)