GB1166442A - Bulb-Lit Panels - Google Patents

Bulb-Lit Panels

Info

Publication number
GB1166442A
GB1166442A GB543966A GB543966A GB1166442A GB 1166442 A GB1166442 A GB 1166442A GB 543966 A GB543966 A GB 543966A GB 543966 A GB543966 A GB 543966A GB 1166442 A GB1166442 A GB 1166442A
Authority
GB
Grant status
Application
Patent type
Prior art keywords
base
recesses
encapsulating material
bulb
bulbs
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
GB543966A
Inventor
Edward William Davies
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/0001Light guides specially adapted for lighting devices or systems
    • G02B6/0011Light guides specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013Means for improving the coupling-in of light from the light source into the light guide
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B15/00Supervisory desks or panels for centralised control or display
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00Illuminated signs; Luminous advertising
    • G09F13/18Edge-illuminated signs
    • G09F2013/1804Achieving homogeneous illumination
    • G09F2013/1831Achieving homogeneous illumination using more than one light source

Abstract

1,166,442. Indicator lamps. ENGLISH ELECTRIC CO. Ltd. 6 Feb., 1967 [8 Feb., 1966], No. 5439/66. Heading F4R. An illuminated panel comprises a base member 10 containing one or more electric lamp bulbs 14 encapsulated in translucent material 15. The base 10 is preferably made of rigid transparent material carrying a front panel 11 bearing indicia, and the bulbs are located in recesses 21, 22 in the back of the base, which may be covered with a reflecting layer 20 of white paint and a further layer 23 of the encapsulating material. The bulb leads 14A are attached to a printed circuit 24 which may be applied to the back of the layer 20. The encapsulating material is preferably a plastic and may be moulded around the bulbs before or after they are placed in the recesses. Either the encapsulating material or the base may be coloured. The recesses may contain more than one bulb and may extend right through the base, in which case the latter may be opaque. In an alternative embodiment the recesses are formed in the front of the base 10 and the printed circuit, which may be covered with encapsulating material, is situated between the base and the front panel 11.
GB543966A 1966-02-08 1966-02-08 Bulb-Lit Panels Expired GB1166442A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB543966A GB1166442A (en) 1966-02-08 1966-02-08 Bulb-Lit Panels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB543966A GB1166442A (en) 1966-02-08 1966-02-08 Bulb-Lit Panels
FR92739A FR1514425A (en) 1966-02-08 1967-01-27 illuminated sign per ampoule

Publications (1)

Publication Number Publication Date
GB1166442A true true GB1166442A (en) 1969-10-08

Family

ID=9796232

Family Applications (1)

Application Number Title Priority Date Filing Date
GB543966A Expired GB1166442A (en) 1966-02-08 1966-02-08 Bulb-Lit Panels

Country Status (2)

Country Link
FR (1) FR1514425A (en)
GB (1) GB1166442A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2529286A1 (en) * 1975-05-09 1976-11-18 Sutter Aldo Light with one or more light sources and the use thereof
DE2531968A1 (en) * 1975-07-17 1977-02-03 Stahl Niederlassung Kuenzelsau Explosion proofed lighting unit with protected interior - has solid state light source and housing filled with cast resin material
JPS5449189U (en) * 1974-07-11 1979-04-05
DE3147113A1 (en) * 1981-11-27 1983-06-01 Siegfried Saumweber Double plate having luminous elements
GB2144842A (en) * 1983-08-12 1985-03-13 Irwin Measuring Tool Illuminated instruments
DE3602819A1 (en) * 1985-01-30 1986-07-31 Toshiba Kawasaki Kk Display panel lighting device
US4603496A (en) * 1985-02-04 1986-08-05 Adaptive Micro Systems, Inc. Electronic display with lens matrix
DE3723073A1 (en) * 1987-07-11 1989-01-19 Loewe Opta Gmbh Display for alphanumeric characters and symbols
DE3833315A1 (en) * 1988-09-30 1990-04-05 Siemens Ag Light-emitting diode (LED) display device
WO1990013885A1 (en) * 1989-05-02 1990-11-15 Lydia Wustlich Vertrieb Elektronischer Bauteile Surface display for illuminating background surfaces
US5440460A (en) * 1992-10-16 1995-08-08 Technor As Light ledge for a level glass

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2289842B1 (en) * 1974-10-28 1978-04-28 Int Vibration Engineer
DE4023281A1 (en) * 1990-07-21 1992-01-23 Miele & Cie Lighting for control panels of domestic electric appliances

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5449189U (en) * 1974-07-11 1979-04-05
DE2529286A1 (en) * 1975-05-09 1976-11-18 Sutter Aldo Light with one or more light sources and the use thereof
DE2531968A1 (en) * 1975-07-17 1977-02-03 Stahl Niederlassung Kuenzelsau Explosion proofed lighting unit with protected interior - has solid state light source and housing filled with cast resin material
DE3147113A1 (en) * 1981-11-27 1983-06-01 Siegfried Saumweber Double plate having luminous elements
GB2144842A (en) * 1983-08-12 1985-03-13 Irwin Measuring Tool Illuminated instruments
DE3602819A1 (en) * 1985-01-30 1986-07-31 Toshiba Kawasaki Kk Display panel lighting device
US4729185A (en) * 1985-01-30 1988-03-08 Kabushiki Kaisha Toshiba Display panel illumination device
US4603496A (en) * 1985-02-04 1986-08-05 Adaptive Micro Systems, Inc. Electronic display with lens matrix
DE3723073A1 (en) * 1987-07-11 1989-01-19 Loewe Opta Gmbh Display for alphanumeric characters and symbols
DE3833315A1 (en) * 1988-09-30 1990-04-05 Siemens Ag Light-emitting diode (LED) display device
WO1990013885A1 (en) * 1989-05-02 1990-11-15 Lydia Wustlich Vertrieb Elektronischer Bauteile Surface display for illuminating background surfaces
US5440460A (en) * 1992-10-16 1995-08-08 Technor As Light ledge for a level glass

Also Published As

Publication number Publication date Type
FR1514425A (en) 1968-02-23 grant

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees