GB201105147D0 - Smart window - Google Patents

Smart window

Info

Publication number
GB201105147D0
GB201105147D0 GBGB1105147.1A GB201105147A GB201105147D0 GB 201105147 D0 GB201105147 D0 GB 201105147D0 GB 201105147 A GB201105147 A GB 201105147A GB 201105147 D0 GB201105147 D0 GB 201105147D0
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
temperature
window
infra
transition temperature
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.)
Withdrawn
Application number
GBGB1105147.1A
Other versions
GB2489670A (en
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to GB1105147.1A priority Critical patent/GB2489670A/en
Publication of GB201105147D0 publication Critical patent/GB201105147D0/en
Publication of GB2489670A publication Critical patent/GB2489670A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/24—Liquid filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0147—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on thermo-optic effects
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/132—Thermal activation of liquid crystals exhibiting a thermo-optic effect
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/288—Filters employing polarising elements, e.g. Lyot or Solc filters

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Toxicology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Liquid Crystal (AREA)

Abstract

A window having temperature-dependent spectral characteristics comprises a first liquid crystal layer including a first liquid crystal material (7a, 11, 14) that, at a temperature below a transition temperature, is in a first crystal or liquid crystal state and transmits visible light 1 and infra-red light 2 and that, at a temperature higher than the transition temperature, is in a second liquid crystal state and transmits visible radiation 1 and at least partially reflects infra-red radiation 2. The transition temperature is between 10°C and 40°C. As the ambient temperature increases the window becomes at least partially reflective to infra-red radiation, and the heat load transmitted through the window falls. No operator action is required as the change in spectral characteristics of the window arises automatically owing to a change in state of the liquid crystal material that is induced by the rising temperature.
GB1105147.1A 2011-03-28 2011-03-28 Temperature dependent smart window Withdrawn GB2489670A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1105147.1A GB2489670A (en) 2011-03-28 2011-03-28 Temperature dependent smart window

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1105147.1A GB2489670A (en) 2011-03-28 2011-03-28 Temperature dependent smart window

Publications (2)

Publication Number Publication Date
GB201105147D0 true GB201105147D0 (en) 2011-05-11
GB2489670A GB2489670A (en) 2012-10-10

Family

ID=44067459

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1105147.1A Withdrawn GB2489670A (en) 2011-03-28 2011-03-28 Temperature dependent smart window

Country Status (1)

Country Link
GB (1) GB2489670A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104122908B (en) * 2013-04-24 2017-02-08 京东方科技集团股份有限公司 Temperature control apparatus and method

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0929882A (en) * 1995-07-20 1997-02-04 Nippon Oil Co Ltd Light adjusting material
JP4731728B2 (en) * 2001-06-01 2011-07-27 独立行政法人科学技術振興機構 Infrared light control device
US7973998B2 (en) * 2007-05-18 2011-07-05 Serious Materials, Inc. Temperature activated optical films

Also Published As

Publication number Publication date
GB2489670A (en) 2012-10-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)