WO1999052010A3 - Optical computational system - Google Patents

Optical computational system Download PDF

Info

Publication number
WO1999052010A3
WO1999052010A3 PCT/US1999/007520 US9907520W WO9952010A3 WO 1999052010 A3 WO1999052010 A3 WO 1999052010A3 US 9907520 W US9907520 W US 9907520W WO 9952010 A3 WO9952010 A3 WO 9952010A3
Authority
WO
WIPO (PCT)
Prior art keywords
light signal
filter
positive
coefficient
function
Prior art date
Application number
PCT/US1999/007520
Other languages
French (fr)
Other versions
WO1999052010A2 (en
Inventor
Michael L Myrick
Original Assignee
Univ South Carolina
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 Univ South Carolina filed Critical Univ South Carolina
Priority to AU33838/99A priority Critical patent/AU3383899A/en
Publication of WO1999052010A2 publication Critical patent/WO1999052010A2/en
Publication of WO1999052010A3 publication Critical patent/WO1999052010A3/en

Links

Classifications

    • 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
    • G01N21/27Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • 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
    • G01N21/255Details, e.g. use of specially adapted sources, lighting or optical systems

Abstract

In optical filter systems and optical transmission system, an optical filter compresses data into and/or derives data from a light signal. The filter may weight an incident light signal by wavelength over a predetermined wavelength range according to a predetermined function so that the filter performs the dot product of the light signal and the function. In a simple form, the function may represent a regression vector having a positive coefficient and a negative coefficient, each associated with a vector component. Two lenses (51a, 51b) separate incoming light (44) into paths corresponding to each vector component. Filters (52a, 52b) are provided in each path to perform the dot product of light signal and the vector component. The filter outputs at detectors (56a, 56b) are both positive, but the sense of each coefficient as positive or negative is applied at a summer (58).
PCT/US1999/007520 1998-04-07 1999-04-06 Optical computational system WO1999052010A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33838/99A AU3383899A (en) 1998-04-07 1999-04-06 Optical computational system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8097198P 1998-04-07 1998-04-07
US60/080,971 1998-04-07

Publications (2)

Publication Number Publication Date
WO1999052010A2 WO1999052010A2 (en) 1999-10-14
WO1999052010A3 true WO1999052010A3 (en) 2000-03-09

Family

ID=22160850

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/007520 WO1999052010A2 (en) 1998-04-07 1999-04-06 Optical computational system

Country Status (2)

Country Link
AU (1) AU3383899A (en)
WO (1) WO1999052010A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140067268A1 (en) * 2012-08-30 2014-03-06 Halliburton Energy Services, Inc. Systems and Methods for Monitoring a Subsea Environment
US9103716B2 (en) * 2012-08-31 2015-08-11 Halliburton Energy Services, Inc. Handheld characteristic analyzer and methods of using the same
US9170208B2 (en) * 2012-08-31 2015-10-27 Halliburton Energy Services, Inc. Handheld characteristic analyzer and methods of using the same

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084880A (en) * 1975-01-22 1978-04-18 Clow Richard G Coherent optical computer for polynomial evaluation
US4118106A (en) * 1976-08-02 1978-10-03 Environmental Research Institute Of Michigan Fiber optic phase correction using holograms
US4687335A (en) * 1985-12-09 1987-08-18 Atlantic Richfield Company Temperature compensation means for a radiometer
US4934782A (en) * 1988-01-19 1990-06-19 Hughes Aircraft Company Optical thresholding apparatus and method
US5005946A (en) * 1989-04-06 1991-04-09 Grumman Aerospace Corporation Multi-channel filter system
US5321539A (en) * 1991-02-04 1994-06-14 Nippon Telegraph And Telephone Corporation Liquid crystal Fabry-Perot etalon with glass spacer
US5412465A (en) * 1993-08-02 1995-05-02 The United States Of America As Represented By The United States Department Of Energy Method for verification of constituents of a process stream just as they go through an inlet of a reaction vessel
US5459677A (en) * 1990-10-09 1995-10-17 Board Of Regents Of The University Of Washington Calibration transfer for analytical instruments
US5513022A (en) * 1993-12-30 1996-04-30 Korea Institute Of Science And Technology Method and apparatus for direct transmission of an optical image
US5555128A (en) * 1994-10-04 1996-09-10 The United States Of America As Represented By The Secretary Of The Air Force Phase coding technique for one-way image transmission through an aberrating medium
US5828492A (en) * 1994-06-18 1998-10-27 Forschungszentrum Karlsruhe Gmbh Grating structure having a plurality of binary lamellar gratings

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084880A (en) * 1975-01-22 1978-04-18 Clow Richard G Coherent optical computer for polynomial evaluation
US4118106A (en) * 1976-08-02 1978-10-03 Environmental Research Institute Of Michigan Fiber optic phase correction using holograms
US4687335A (en) * 1985-12-09 1987-08-18 Atlantic Richfield Company Temperature compensation means for a radiometer
US4934782A (en) * 1988-01-19 1990-06-19 Hughes Aircraft Company Optical thresholding apparatus and method
US5005946A (en) * 1989-04-06 1991-04-09 Grumman Aerospace Corporation Multi-channel filter system
US5459677A (en) * 1990-10-09 1995-10-17 Board Of Regents Of The University Of Washington Calibration transfer for analytical instruments
US5321539A (en) * 1991-02-04 1994-06-14 Nippon Telegraph And Telephone Corporation Liquid crystal Fabry-Perot etalon with glass spacer
US5412465A (en) * 1993-08-02 1995-05-02 The United States Of America As Represented By The United States Department Of Energy Method for verification of constituents of a process stream just as they go through an inlet of a reaction vessel
US5513022A (en) * 1993-12-30 1996-04-30 Korea Institute Of Science And Technology Method and apparatus for direct transmission of an optical image
US5828492A (en) * 1994-06-18 1998-10-27 Forschungszentrum Karlsruhe Gmbh Grating structure having a plurality of binary lamellar gratings
US5555128A (en) * 1994-10-04 1996-09-10 The United States Of America As Represented By The Secretary Of The Air Force Phase coding technique for one-way image transmission through an aberrating medium

Also Published As

Publication number Publication date
AU3383899A (en) 1999-10-25
WO1999052010A2 (en) 1999-10-14

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