CA2282472A1 - Imaging spectrometer - Google Patents

Imaging spectrometer Download PDF

Info

Publication number
CA2282472A1
CA2282472A1 CA002282472A CA2282472A CA2282472A1 CA 2282472 A1 CA2282472 A1 CA 2282472A1 CA 002282472 A CA002282472 A CA 002282472A CA 2282472 A CA2282472 A CA 2282472A CA 2282472 A1 CA2282472 A1 CA 2282472A1
Authority
CA
Canada
Prior art keywords
reflecting surfaces
curved reflecting
spectrometer
image
optical path
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.)
Granted
Application number
CA002282472A
Other languages
French (fr)
Other versions
CA2282472C (en
Inventor
Daniel Richard Lobb
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.)
SIRA ELECTRO-OPTICS Ltd
Original Assignee
Sira Electro-Optics Ltd.
Daniel Richard Lobb
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 Sira Electro-Optics Ltd., Daniel Richard Lobb filed Critical Sira Electro-Optics Ltd.
Publication of CA2282472A1 publication Critical patent/CA2282472A1/en
Application granted granted Critical
Publication of CA2282472C publication Critical patent/CA2282472C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G01J3/12Generating the spectrum; Monochromators
    • G01J3/14Generating the spectrum; Monochromators using refracting elements, e.g. prisms

Abstract

An imaging spectrometer to form a spectrally resolved image of an object, the spectrometer comprising three curved reflecting surfaces, an optical path between the object and the image comprising reflections from the three curved reflecting surfaces. The spectrometer further comprises dispersing elements each with a curved surface in the optical path. One dispersing element is located in the optical path between the object and a first of the curved reflecting surfaces; another dispersing element is located in the optical path between the image and a third of the curved reflecting surfaces. The majority of the spectrometer's dispersive power may be provided by optical elements in the optical paths between the object and the first of the curved reflecting surfaces and between the image and the third of the curved reflecting surfaces.
CA002282472A 1997-02-24 1998-02-24 Imaging spectrometer Expired - Fee Related CA2282472C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9703770.9A GB9703770D0 (en) 1997-02-24 1997-02-24 Imaging spectrometer
GB9703770.9 1997-02-24
PCT/GB1998/000595 WO1998037389A1 (en) 1997-02-24 1998-02-24 Imaging spectrometer

Publications (2)

Publication Number Publication Date
CA2282472A1 true CA2282472A1 (en) 1998-08-27
CA2282472C CA2282472C (en) 2003-07-08

Family

ID=10808188

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002282472A Expired - Fee Related CA2282472C (en) 1997-02-24 1998-02-24 Imaging spectrometer

Country Status (7)

Country Link
US (1) US6288781B1 (en)
EP (1) EP0961920B1 (en)
AU (1) AU6303998A (en)
CA (1) CA2282472C (en)
DE (1) DE69823808T2 (en)
GB (1) GB9703770D0 (en)
WO (1) WO1998037389A1 (en)

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EP1260802B1 (en) * 2001-05-25 2008-10-29 Galileo Avionica S.p.A. Wide-band spectrometer with objective comprising an aspherical corrector mirror
US6886953B2 (en) * 2002-03-22 2005-05-03 Raytheon Company High-resolution, all-reflective imaging spectrometer
US20030223044A1 (en) * 2002-06-04 2003-12-04 Koninklijke Philips Electronics N.V. Light valve projection system
US7199876B2 (en) * 2002-12-31 2007-04-03 Wavefront Research, Inc. Compact hyperspectral imager
US7315371B2 (en) * 2004-01-23 2008-01-01 P&P Optica Inc. Multi-channel spectrum analyzer
WO2006014263A2 (en) * 2004-07-02 2006-02-09 Filmetrics, Inc. Method and apparatus for high-speed thickness mapping of patterned thin films
US7283307B2 (en) * 2004-07-07 2007-10-16 Oasys Technology, Llc Common aperture vision system
JP2008510964A (en) * 2004-08-19 2008-04-10 ヘッドウォール フォトニクス,インコーポレイテッド Multichannel, multispectral imaging spectrometer
TWI245114B (en) * 2004-10-11 2005-12-11 Ind Tech Res Inst Apparatus for measuring imaging spectrograph
US20080011941A1 (en) * 2004-11-12 2008-01-17 Oasys Technology Llc Aviation night vision system using common aperture and multi-spectral image fusion
US7403286B2 (en) 2005-05-27 2008-07-22 Hamamatsu Photonics K.K. Spectroscopic analyzing apparatus
US20080024871A1 (en) * 2006-02-22 2008-01-31 Itres Research Limited Optically multiplexed imaging systems and methods of operation
WO2007095743A1 (en) * 2006-02-22 2007-08-30 Itres Research Limited Optically multiplexed imaging systems and methods of operation
US7456956B2 (en) * 2006-03-21 2008-11-25 Thermo Electron Scientific Instruments Llc Vibrational circular dichroism spectrometer using reflective optics
US8203710B1 (en) 2006-06-12 2012-06-19 Wavefront Research, Inc. Compact wide field fast hyperspectral imager
EP1916507B1 (en) 2006-10-25 2014-12-03 Hamamatsu Photonics K. K. Spectroscopic analyzing apparatus
US7579601B2 (en) 2007-02-27 2009-08-25 Metrosol, Inc. Spectrometer with moveable detector element
US7485869B2 (en) 2007-02-27 2009-02-03 Metrosol, Inc. Prism spectrometer
US7684037B2 (en) * 2007-02-27 2010-03-23 Metrosol, Inc. Spectrometer with collimated input light
US7817274B2 (en) 2007-10-05 2010-10-19 Jingyun Zhang Compact spectrometer
US8981296B2 (en) 2007-11-06 2015-03-17 Honeywell International Inc. Terahertz dispersive spectrometer system
US20090114822A1 (en) * 2007-11-06 2009-05-07 Honeywell International Inc. Terahertz dispersive spectrometer system
US8345226B2 (en) 2007-11-30 2013-01-01 Jingyun Zhang Spectrometers miniaturized for working with cellular phones and other portable electronic devices
DE102008007783A1 (en) 2008-02-06 2009-08-13 Erwin Kayser-Threde Gmbh Imaging spectrometer, especially for remote sensing
US7609381B2 (en) * 2008-03-20 2009-10-27 The Aerospace Corporation Compact, high-throughput spectrometer apparatus for hyperspectral remote sensing
US20090273840A1 (en) * 2008-05-02 2009-11-05 Mclaughlin Sheldon Wavelength dispersing device
US8411268B2 (en) 2010-10-01 2013-04-02 Raytheon Company Two material achromatic prism
US8422011B2 (en) 2010-10-01 2013-04-16 Raytheon Company Two material achromatic prism
CN103268017B (en) * 2013-03-13 2016-04-27 苏州大学 A kind of Littrow-Offner type spectroscopic imaging system
US10151631B2 (en) 2016-10-04 2018-12-11 Kla-Tencor Corporation Spectroscopy with tailored spectral sampling
CN108955697B (en) * 2018-04-11 2020-12-22 哈尔滨工程大学 Remote sensing satellite attitude planning method for multi-curvature dynamic imaging target
US10948702B2 (en) * 2019-07-02 2021-03-16 Northrop Grumman Systems Corporation Unobscured two-mirror catadioptric optical system for a multispectral imaging apparatus
WO2022208130A1 (en) * 2021-03-30 2022-10-06 Freshape Sa Dispersive optical device, dispersive optical system comprising the same and use thereof especially for solar energy harvesting
US11898907B1 (en) 2022-09-19 2024-02-13 Raytheon Company Freeform offner spectrometer
CN116929552A (en) * 2023-07-21 2023-10-24 西安工业大学 Plane grating spectrometer based on curved prism

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR625906A (en) * 1926-03-20 1927-08-23 Anastigmat spectrograph
US2866374A (en) * 1952-11-07 1958-12-30 Central Scientific Co Monochromator
US4103989A (en) * 1977-02-07 1978-08-01 Seymour Rosin Unit-power concentric optical systems
US4743112A (en) * 1986-07-18 1988-05-10 Santa Barbara Research Center Imaging spectrometer
US5127728A (en) * 1990-01-18 1992-07-07 The Aerospace Corporation Compact prism spectrograph suitable for broadband spectral surveys with array detectors
DE19537949A1 (en) * 1995-10-12 1997-04-17 Zeiss Carl Fa Spectral apparatus of the concentric type with FEry prism

Also Published As

Publication number Publication date
DE69823808D1 (en) 2004-06-17
DE69823808T2 (en) 2005-05-12
WO1998037389A1 (en) 1998-08-27
GB9703770D0 (en) 1997-04-16
CA2282472C (en) 2003-07-08
EP0961920A1 (en) 1999-12-08
US6288781B1 (en) 2001-09-11
AU6303998A (en) 1998-09-09
EP0961920B1 (en) 2004-05-12

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