GB2027551B - Illuminated panels - Google Patents

Illuminated panels

Info

Publication number
GB2027551B
GB2027551B GB7909954A GB7909954A GB2027551B GB 2027551 B GB2027551 B GB 2027551B GB 7909954 A GB7909954 A GB 7909954A GB 7909954 A GB7909954 A GB 7909954A GB 2027551 B GB2027551 B GB 2027551B
Authority
GB
United Kingdom
Prior art keywords
illuminated panels
illuminated
panels
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
Application number
GB7909954A
Other versions
GB2027551A (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.)
Decca Ltd
Original Assignee
Decca 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 Decca Ltd filed Critical Decca Ltd
Priority to GB7909954A priority Critical patent/GB2027551B/en
Publication of GB2027551A publication Critical patent/GB2027551A/en
Application granted granted Critical
Publication of GB2027551B publication Critical patent/GB2027551B/en
Expired 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
    • G02B6/0081—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
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/83—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard characterised by legends, e.g. Braille, liquid crystal displays, light emitting or optical elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B15/00—Supervisory desks or panels for centralised control or display
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/18—Edge-illuminated signs
    • G09F2013/1804—Achieving homogeneous illumination
    • G09F2013/1831—Achieving homogeneous illumination using more than one light source
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H01H2219/014—LED
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/028—Printed information
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/04—Attachments; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/036—Light emitting elements
    • H01H2219/044—Edge lighting of layer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2223/00—Casings
    • H01H2223/034—Bezel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/062—Maintenance or repair facilities

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Push-Button Switches (AREA)
GB7909954A 1978-03-15 1979-03-21 Illuminated panels Expired GB2027551B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7909954A GB2027551B (en) 1978-03-15 1979-03-21 Illuminated panels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1035078 1978-03-15
GB7909954A GB2027551B (en) 1978-03-15 1979-03-21 Illuminated panels

Publications (2)

Publication Number Publication Date
GB2027551A GB2027551A (en) 1980-02-20
GB2027551B true GB2027551B (en) 1982-08-11

Family

ID=26247462

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7909954A Expired GB2027551B (en) 1978-03-15 1979-03-21 Illuminated panels

Country Status (1)

Country Link
GB (1) GB2027551B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60252388A (en) * 1984-05-29 1985-12-13 株式会社東芝 Display
GB8417713D0 (en) * 1984-07-11 1984-08-15 Smith G C Illuminated display apparatus
DE3725777C1 (en) * 1987-08-04 1988-12-22 Josef 4040 Neuss De Franken
DE3914448A1 (en) * 1989-05-02 1990-11-08 Wustlich Elektr Bauteile ARRANGEMENT FOR ILLUMINATING BACKGROUND AREAS
FI95177C (en) * 1994-01-10 1995-12-27 Nokia Mobile Phones Ltd Equipped with an illuminated keyboard front panel for an electronic device
FR2798214A1 (en) * 1999-09-03 2001-03-09 Claude Noerdinger AUTONOMOUS ELECTRONIC LUMINOUS DISPLAY DEVICE POWERED BY SOLAR AND WIND ENERGY UTILIZING SOURCES OF LIGHT WITH LOW POWER CONSUMPTION AND HIGH LUMINOUS EFFICIENCY
GB0424245D0 (en) 2004-11-02 2004-12-01 Mcgavigan John Ltd Switch panel

Also Published As

Publication number Publication date
GB2027551A (en) 1980-02-20

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee