ES2080803T3 - Dispositivo indicador visual de cristal liquido sensible a la temperatura. - Google Patents

Dispositivo indicador visual de cristal liquido sensible a la temperatura.

Info

Publication number
ES2080803T3
ES2080803T3 ES90308228T ES90308228T ES2080803T3 ES 2080803 T3 ES2080803 T3 ES 2080803T3 ES 90308228 T ES90308228 T ES 90308228T ES 90308228 T ES90308228 T ES 90308228T ES 2080803 T3 ES2080803 T3 ES 2080803T3
Authority
ES
Spain
Prior art keywords
liquid crystal
temperature sensitive
visual indicator
indicator device
sensitive liquid
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
ES90308228T
Other languages
English (en)
Inventor
Colin David Rickson
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.)
Liquid Crystal Devices Ltd
Original Assignee
Liquid Crystal Devices 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 Liquid Crystal Devices Ltd filed Critical Liquid Crystal Devices Ltd
Application granted granted Critical
Publication of ES2080803T3 publication Critical patent/ES2080803T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
    • G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/20—Clinical contact thermometers for use with humans or animals

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

UN DISPOSITIVO DE REPRESENTACION VISUAL DE CRISTAL LIQUIDO (1), POR EJEMPLO UN TERMOMETRO, QUE COMPRENDE UN NUMERO DE CAPAS SOBREPUESTAS (8-10, 12-14) DE MATERIAL DE CRISTAL LIQUIDO, CADA UNO PUEDE ACTIVARSE PARA CAMBIAR EL COLOR SOBRE UNA GAMA DE ACTIVACION DE TEMPERATURA DIFERENTE, Y UN FILTRO OPTICO (7,11). LA CAPA O CAPAS DE MATERIAL DE CRISTAL LIQUIDO SOBREPUESTA SOBRE LA CAPA MAS TRASERA (10,14) SON SUFICIENTEMENTE TRANSPARENTES PARA PERMITIR QUE SEA VISIBLE A TRAVES DE LAS MISMAS UNA CAPA DE MATERIAL LIQUIDO DE TEMPERATURA ACTIVADA QUE ESTA DEBAJO.
ES90308228T 1989-07-28 1990-07-26 Dispositivo indicador visual de cristal liquido sensible a la temperatura. Expired - Lifetime ES2080803T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB898917304A GB8917304D0 (en) 1989-07-28 1989-07-28 A liquid crystal visual display device

Publications (1)

Publication Number Publication Date
ES2080803T3 true ES2080803T3 (es) 1996-02-16

Family

ID=10660793

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90308228T Expired - Lifetime ES2080803T3 (es) 1989-07-28 1990-07-26 Dispositivo indicador visual de cristal liquido sensible a la temperatura.

Country Status (4)

Country Link
EP (1) EP0412687B1 (es)
DE (1) DE69023072T2 (es)
ES (1) ES2080803T3 (es)
GB (2) GB8917304D0 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004003908A1 (de) * 2004-01-27 2005-08-18 Adam Opel Ag Zeigerinstrument
FR2880169B1 (fr) * 2004-12-29 2007-06-08 Euracli Sarl Procede ameliore de preparation d'etiquettes indiquant la temperature ideale de consommation du contenu d'un emballage
ITTO20110305A1 (it) * 2011-04-04 2012-10-05 Rodolfo Medugno Dispositivo per ridurre il riscaldamento del canale uditivo causato da telefoni cellulari o senza fili
US10378970B2 (en) 2015-02-24 2019-08-13 Prasidiux, Llc Thermochromic liquid crystal temperature indicator
CN106525272B (zh) * 2016-10-12 2018-11-09 清华大学 温敏性生物传感器

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3679290A (en) * 1971-01-06 1972-07-25 Xerox Corp Liquid crystal optical filter system
DE2411767C2 (de) * 1974-03-12 1983-10-27 Agfa-Gevaert Ag, 5090 Leverkusen Verfahren zur Messung einer zweidimensionalen Temperaturverteilung
US4030482A (en) * 1975-11-20 1977-06-21 Lake St. Louis Research Products, Inc. Contact fever thermometer
EP0018424A1 (en) * 1979-05-02 1980-11-12 Carice International Products, Limited A method of measuring human body temperature and a liquid crystal temperature indicator suitable for measuring human body temperature
MX150810A (es) * 1980-07-30 1984-07-23 Aldo Colombo Mejoras a pantalla termografica para exhibir variaciones de temperatura de la superficie de la piel y metodo para producirla
DE3175808D1 (en) * 1980-10-07 1987-02-12 Nat Res Dev Temperature indicating devices
AU3462984A (en) * 1983-10-27 1985-05-09 Biosynergy Inc. Liquid crystal temperature-monitoring means and method
GB2165646B (en) * 1984-10-15 1989-03-01 Revlon Temperature-responsive color device
GB8700691D0 (en) * 1987-01-13 1987-02-18 Liquid Crystal Devices Ltd Temperature responsive display device

Also Published As

Publication number Publication date
EP0412687A1 (en) 1991-02-13
EP0412687B1 (en) 1995-10-18
GB2235532A (en) 1991-03-06
GB9014806D0 (en) 1990-08-22
GB2235532B (en) 1993-04-21
DE69023072D1 (de) 1995-11-23
GB8917304D0 (en) 1989-09-13
DE69023072T2 (de) 1996-05-30

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