GB2333587B - Illumination system - Google Patents

Illumination system

Info

Publication number
GB2333587B
GB2333587B GB9901271A GB9901271A GB2333587B GB 2333587 B GB2333587 B GB 2333587B GB 9901271 A GB9901271 A GB 9901271A GB 9901271 A GB9901271 A GB 9901271A GB 2333587 B GB2333587 B GB 2333587B
Authority
GB
United Kingdom
Prior art keywords
illumination system
illumination
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 - Fee Related
Application number
GB9901271A
Other versions
GB2333587A (en
GB9901271D0 (en
Inventor
Anthony Bousfield
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.)
Imperial Chemical Industries Ltd
Mitsubishi Chemical UK Ltd
Original Assignee
Imperial Chemical Industries Ltd
Ineos Acrylics UK 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 Imperial Chemical Industries Ltd, Ineos Acrylics UK Ltd filed Critical Imperial Chemical Industries Ltd
Publication of GB9901271D0 publication Critical patent/GB9901271D0/en
Publication of GB2333587A publication Critical patent/GB2333587A/en
Application granted granted Critical
Publication of GB2333587B publication Critical patent/GB2333587B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0095—Light guides as housings, housing portions, shelves, doors, tiles, windows, or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0051—Diffusing sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0065—Manufacturing aspects; Material aspects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
GB9901271A 1998-01-22 1999-01-21 Illumination system Expired - Fee Related GB2333587B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9801312.1A GB9801312D0 (en) 1998-01-22 1998-01-22 Illumination system

Publications (3)

Publication Number Publication Date
GB9901271D0 GB9901271D0 (en) 1999-03-10
GB2333587A GB2333587A (en) 1999-07-28
GB2333587B true GB2333587B (en) 2001-09-12

Family

ID=10825667

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9801312.1A Ceased GB9801312D0 (en) 1998-01-22 1998-01-22 Illumination system
GB9901271A Expired - Fee Related GB2333587B (en) 1998-01-22 1999-01-21 Illumination system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9801312.1A Ceased GB9801312D0 (en) 1998-01-22 1998-01-22 Illumination system

Country Status (1)

Country Link
GB (2) GB9801312D0 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005535A1 (en) * 1990-09-20 1992-04-02 Illumination Research Goup (Properties) Pty.Ltd. A display system
WO1998014740A1 (en) * 1996-10-03 1998-04-09 Imperial Chemical Industries Plc Illumination system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005535A1 (en) * 1990-09-20 1992-04-02 Illumination Research Goup (Properties) Pty.Ltd. A display system
WO1998014740A1 (en) * 1996-10-03 1998-04-09 Imperial Chemical Industries Plc Illumination system

Also Published As

Publication number Publication date
GB9801312D0 (en) 1998-03-18
GB2333587A (en) 1999-07-28
GB9901271D0 (en) 1999-03-10

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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: 20090121