ES2077839T3 - Dispositivo de cristal liquido para la calibracion y ensayo de instrumentos opticos. - Google Patents

Dispositivo de cristal liquido para la calibracion y ensayo de instrumentos opticos.

Info

Publication number
ES2077839T3
ES2077839T3 ES91900473T ES91900473T ES2077839T3 ES 2077839 T3 ES2077839 T3 ES 2077839T3 ES 91900473 T ES91900473 T ES 91900473T ES 91900473 T ES91900473 T ES 91900473T ES 2077839 T3 ES2077839 T3 ES 2077839T3
Authority
ES
Spain
Prior art keywords
optical
shutter
calibration
optical characteristics
testing
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.)
Expired - Lifetime
Application number
ES91900473T
Other languages
English (en)
Inventor
Charles Hermas Swope
John Glenn Link
Douglas Glenn Haugen
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.)
Akzo Nobel NV
Original Assignee
Akzo Nobel NV
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 Akzo Nobel NV filed Critical Akzo Nobel NV
Application granted granted Critical
Publication of ES2077839T3 publication Critical patent/ES2077839T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/27—Colour; 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
    • G01N21/274—Calibration, base line adjustment, drift correction
    • G01N21/278—Constitution of standards

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Biochemistry (AREA)
  • Theoretical Computer Science (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Liquid Crystal (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

UN DISPOSITIVO Y METODO PARA LA CALIBRACION OPTICA DE UN APARATO OPTICO (12) QUE MIDE CARACTERISTICAS OPTICAS JUNTO A UN ALCANCE OPTICO. AL OTRO LADO DEL ALCANCE OPTICO DEL APARATO (12) SE COLOCA UN OBTURADOR CONTROLABLE (18) CON CARACTERISTICAS OPTICAS ALTERABLES ELECTRICAMENTE. SE CONECTA UN CONTROL ELECTRICO (36 Y 38) AL OBTURADOR PARA PROPORCIONAR SELECTIVAMENTE UN VOLTAJE VARIABLE AL OBTURADOR PARA ALTERAR ELECTRICAMENTE LAS CARACTERISTICAS OPTICAS DEL OBTURADOR DE UNA MANERA CONTROLADA DE TAL FORMA QUE LAS CARACTERISTICAS OPTICAS DEL OBTURADOR SE CORRESPONDAN CON LAS CARACTERISTICAS OPTICAS SELECCIONADAS.
ES91900473T 1989-11-29 1990-11-29 Dispositivo de cristal liquido para la calibracion y ensayo de instrumentos opticos. Expired - Lifetime ES2077839T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/442,604 US5030005A (en) 1989-11-29 1989-11-29 Liquid crystal device for calibration and testing of optical instruments

Publications (1)

Publication Number Publication Date
ES2077839T3 true ES2077839T3 (es) 1995-12-01

Family

ID=23757436

Family Applications (1)

Application Number Title Priority Date Filing Date
ES91900473T Expired - Lifetime ES2077839T3 (es) 1989-11-29 1990-11-29 Dispositivo de cristal liquido para la calibracion y ensayo de instrumentos opticos.

Country Status (14)

Country Link
US (1) US5030005A (es)
EP (1) EP0502952B1 (es)
JP (1) JPH05503151A (es)
KR (1) KR0151703B1 (es)
AT (1) ATE125939T1 (es)
AU (1) AU634619B2 (es)
CA (1) CA2072742A1 (es)
DE (1) DE69021392T2 (es)
DK (1) DK0502952T3 (es)
ES (1) ES2077839T3 (es)
FI (1) FI102213B1 (es)
IE (1) IE67655B1 (es)
WO (1) WO1991008452A1 (es)
ZA (1) ZA909530B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248925B (en) * 1990-09-18 1994-08-24 Anthony Michael Charles Davies Method and apparatus for calibrating a spectrometer
US5416575A (en) * 1991-11-18 1995-05-16 Schwartz; Mark Method and system for calibrating an optical density measurement apparatus
DE69310974T2 (de) * 1992-03-25 1997-11-06 Texas Instruments Inc Eingebautes optisches Eichsystem
US5369484A (en) * 1992-11-09 1994-11-29 Akzo N.V. Multiple discrete analyzer test apparatus and method
DE19531556A1 (de) * 1995-08-28 1997-03-06 Cafer Borucu Phasenschieber
US6061128A (en) * 1997-09-04 2000-05-09 Avocet Medical, Inc. Verification device for optical clinical assay systems
US7576853B2 (en) * 2005-06-10 2009-08-18 The Research Foundation Of State University Of New York Electronically modulated dynamic optical phantoms for biomedical imaging

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4435006A (en) * 1980-05-12 1984-03-06 Kabushiki Kaisha Yamamoto Suiatsu Kogyosho Automatic pressurized connecting device
US4435047A (en) * 1981-09-16 1984-03-06 Manchester R & D Partnership Encapsulated liquid crystal and method
DE3203800A1 (de) * 1982-02-04 1983-08-11 Jos. Schneider, Optische Werke, AG, 6550 Bad Kreuznach Beleuchtungseinrichtung eines testprojektors fuer farbfernsehkameras
US4556289A (en) * 1983-03-21 1985-12-03 Manchester R & D Partnership Low birefringence encapsulated liquid crystal and optical shutter using same
US4595292A (en) * 1983-07-29 1986-06-17 The Perkin-Elmer Corporation Apparatus for detecting coherent radiation and unequal path interferometers
US4756884A (en) * 1985-08-05 1988-07-12 Biotrack, Inc. Capillary flow device

Also Published As

Publication number Publication date
FI102213B (fi) 1998-10-30
EP0502952A4 (en) 1993-03-24
CA2072742A1 (en) 1991-05-30
FI922200A0 (fi) 1992-05-14
DK0502952T3 (da) 1995-09-25
ZA909530B (en) 1991-11-27
JPH05503151A (ja) 1993-05-27
ATE125939T1 (de) 1995-08-15
AU6902791A (en) 1991-06-26
DE69021392D1 (de) 1995-09-07
US5030005A (en) 1991-07-09
EP0502952B1 (en) 1995-08-02
AU634619B2 (en) 1993-02-25
DE69021392T2 (de) 1996-01-18
FI922200A (fi) 1992-05-14
IE67655B1 (en) 1996-04-17
WO1991008452A1 (en) 1991-06-13
EP0502952A1 (en) 1992-09-16
IE904229A1 (en) 1991-06-05
KR0151703B1 (ko) 1998-12-01
KR920704106A (ko) 1992-12-19
FI102213B1 (fi) 1998-10-30

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