GB2305504A - An improved optical sensor and method - Google Patents

An improved optical sensor and method

Info

Publication number
GB2305504A
GB2305504A GB9626660A GB9626660A GB2305504A GB 2305504 A GB2305504 A GB 2305504A GB 9626660 A GB9626660 A GB 9626660A GB 9626660 A GB9626660 A GB 9626660A GB 2305504 A GB2305504 A GB 2305504A
Authority
GB
United Kingdom
Prior art keywords
light
optical sensor
spatially
improved optical
spatial filters
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
GB9626660A
Other versions
GB9626660D0 (en
GB2305504B (en
Inventor
George Yourgson Haig
Mark Burton Holbrook
Graeme Blance
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.)
PHOTONEX Ltd
Original Assignee
PHOTONEX 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 PHOTONEX Ltd filed Critical PHOTONEX Ltd
Publication of GB9626660D0 publication Critical patent/GB9626660D0/en
Publication of GB2305504A publication Critical patent/GB2305504A/en
Application granted granted Critical
Publication of GB2305504B publication Critical patent/GB2305504B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/45—Interferometric spectrometry
    • G01J3/453—Interferometric spectrometry by correlation of the amplitudes

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

Light to be analysed is introduced into a spatially dispersive Fourier Transform spectrometer (105). The resulting image which consists of interference fringes is then relayed into an analyser which superimposes the image onto a single or a plurality of spatial filters (112). The light passing through the spatial filters(s) is then detected. Such detection can be spatially discriminatory or can integrate over space. By comparison of the signal passing through the various filters the level of match to particular spectral characteristics can be ascertained and the properties of the light source, or of an analyte (103) through which the light has passed, can be inferred.
GB9626660A 1994-06-28 1995-06-28 An improved optical sensor and method Expired - Fee Related GB2305504B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9412913A GB9412913D0 (en) 1994-06-28 1994-06-28 An improved optical sensor
PCT/GB1995/001532 WO1996000887A1 (en) 1994-06-28 1995-06-28 An improved optical sensor and method

Publications (3)

Publication Number Publication Date
GB9626660D0 GB9626660D0 (en) 1997-02-19
GB2305504A true GB2305504A (en) 1997-04-09
GB2305504B GB2305504B (en) 1998-03-18

Family

ID=10757420

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9412913A Pending GB9412913D0 (en) 1994-06-28 1994-06-28 An improved optical sensor
GB9626660A Expired - Fee Related GB2305504B (en) 1994-06-28 1995-06-28 An improved optical sensor and method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9412913A Pending GB9412913D0 (en) 1994-06-28 1994-06-28 An improved optical sensor

Country Status (3)

Country Link
AU (1) AU2800895A (en)
GB (2) GB9412913D0 (en)
WO (1) WO1996000887A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2581725C1 (en) * 2012-05-25 2016-04-20 ФОСС Аналитикал А/С Optical spectrometer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2294778B (en) * 1993-07-10 1997-10-22 Siemens Plc Fourier transform spectrometer with birefringent component between polarisers
US6519040B1 (en) 1997-07-29 2003-02-11 William Bradshaw Amos Imaging system and method for Fourier transform spectroscopy
US6351307B1 (en) * 1999-02-23 2002-02-26 The Regents Of The University Of California Combined dispersive/interference spectroscopy for producing a vector spectrum
KR100625366B1 (en) * 1999-12-31 2006-09-18 현대자동차주식회사 Plastic tube structure for fuel system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563663A (en) * 1966-07-13 1971-02-16 Barringer Research Ltd Analysis of spectra by correlation of interference patterns
US3717412A (en) * 1969-11-28 1973-02-20 Jeol Ltd Method for analyzing spectral data using halograms
EP0228702A2 (en) * 1986-01-07 1987-07-15 Bruker Analytische Messtechnik GmbH Interferometer including stationary, electrically alterable, optical masking device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3563663A (en) * 1966-07-13 1971-02-16 Barringer Research Ltd Analysis of spectra by correlation of interference patterns
US3717412A (en) * 1969-11-28 1973-02-20 Jeol Ltd Method for analyzing spectral data using halograms
EP0228702A2 (en) * 1986-01-07 1987-07-15 Bruker Analytische Messtechnik GmbH Interferometer including stationary, electrically alterable, optical masking device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
APPLIED OPTICS vol 23 no 2 15/01/84 NY US pp 269-273 OKAMOTOet al. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2581725C1 (en) * 2012-05-25 2016-04-20 ФОСС Аналитикал А/С Optical spectrometer

Also Published As

Publication number Publication date
AU2800895A (en) 1996-01-25
GB9626660D0 (en) 1997-02-19
GB2305504B (en) 1998-03-18
WO1996000887A1 (en) 1996-01-11
GB9412913D0 (en) 1994-08-17

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010628