EP0148861A1 - An arrangement for a display device which can be acted upon by light and is provided with a display surface - Google Patents

An arrangement for a display device which can be acted upon by light and is provided with a display surface

Info

Publication number
EP0148861A1
EP0148861A1 EP19840902228 EP84902228A EP0148861A1 EP 0148861 A1 EP0148861 A1 EP 0148861A1 EP 19840902228 EP19840902228 EP 19840902228 EP 84902228 A EP84902228 A EP 84902228A EP 0148861 A1 EP0148861 A1 EP 0148861A1
Authority
EP
European Patent Office
Prior art keywords
light
plate
display surface
arrangement according
arrangement
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Withdrawn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
EP19840902228
Other languages
German (de)
English (en)
French (fr)
Inventor
Ulf Henke
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0148861A1 publication Critical patent/EP0148861A1/en
Withdrawn legal-status Critical Current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
    • G02B6/0045—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 by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • 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

Definitions

  • the main object of the present invention is primarily to provide an arrangement of the above-mentionedkind wherein the light is dispersed effectively over the whole of its display surface.
  • the said object is achieved by means of an arrangement according to the present invention which is essentially characterised in that the plate has a substantially curved convex surface which has a great number of recesses made in it, for example by knurling, blasting or stamping, with light-refracting surfaces disposed extending transverse to the light entering from the direction of the plate end.
  • Figure 2 shows two parallel-connected plates
  • Figure 3 shows the plates in Figure 2 viewed from the direction of their curved sides
  • Figure 7 shows the arrangement associated with a light-source with a rotatable casing
  • Figure 8 is a cross-section through the casing and the light-source shown in Figure 7,
  • a diffusor 5 which acts in a manner which is known per se can be disposed over the preferably smooth or blasted display surface 2, for the purpose of collecting the light on the front face A of the plate.
  • the blasting on the surface 3 is for the same purpose.
  • Figure 11 shows a plate 1 associated with a lightsource 7 and a reflector 23 which spreads the light uniformly, situated behind the light-source 7.
  • a distorted image 24 such as a diapositive image, for example, which is located between the light-source 7 and the lightadmission surface 5 is shown with its correct proportions when displayed on the front face 2 of the plate.
  • the shape of the projecting plate is part of the segment of a circle.
  • the thickness of the plate can be increased from the index. This index is influenced by lenses, for example, (the parallelity of the incident light), the strength of the light-source and, if applicable, by different types of transparent material in the plate.
  • Illuminated road signs providing compact and durable signs where the light fittings can be protected in poles, for example.
  • Indicator lights and brake lights for vehicles eliminating the costly and conventional light reflectors and reducing the weight and volume of the vehicle, which is the aim of all manufacturers today.
  • Instrument lighting of various kinds reducing the risk of dazzle and providing a compact unit.
  • Illuminated walls, counters, ceilings, floors and shelves such as reception desks, bar counters, ceiling fittings, illuminated steps and stairs, etc.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP19840902228 1983-05-26 1984-05-17 An arrangement for a display device which can be acted upon by light and is provided with a display surface Withdrawn EP0148861A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8302959 1983-05-26
SE8302959A SE8302959L (sv) 1983-05-26 1983-05-26 Anordning vid ett med visningsyta forsett ljuspaverkbart visningsarrangemang jemte framstellningsforfarande for sagda anordning

Publications (1)

Publication Number Publication Date
EP0148861A1 true EP0148861A1 (en) 1985-07-24

Family

ID=20351328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840902228 Withdrawn EP0148861A1 (en) 1983-05-26 1984-05-17 An arrangement for a display device which can be acted upon by light and is provided with a display surface

Country Status (6)

Country Link
EP (1) EP0148861A1 ( )
AU (1) AU2968484A ( )
ES (1) ES532834A0 ( )
FR (1) FR2546651A1 ( )
SE (1) SE8302959L ( )
WO (1) WO1984004838A1 ( )

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IE872698L (en) * 1987-10-09 1989-04-09 Stena Offshort Ltd An illuminated display aid
WO1989011713A1 (en) * 1988-05-19 1989-11-30 Stanilite Pacific Ltd. Luminaire for signs
US4992916A (en) * 1989-06-08 1991-02-12 General Electric Company Prismatic illuminator for flat panel display
DE4302664A1 (de) * 1993-01-30 1994-08-04 Willing Gmbh Dr Ing Flache Hinweisleuchte mit einem durch die lichtabstrahlende Fläche verdeckten Gehäuse
FR2720181B1 (fr) * 1994-05-18 1996-08-02 Sorelec Panneau d'affichage et de signalisation.
DE19702344A1 (de) * 1997-01-23 1998-07-30 Zumtobel Licht Beleuchtungsanordnung für Arbeitsplätze
DE19818887A1 (de) * 1998-04-28 1999-11-04 Jan Hes Beleuchtungsverfahren für Leuchtschriften
GB0031611D0 (en) 2000-12-21 2001-02-07 Ineos Acrylics Uk Ltd Edge lit illumination devices

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR31104E (fr) * 1925-10-14 1926-11-23 Plaque signalisatrice à usage diurne et nocturne pour automobile, indication du nomdes rues, etc.
US2091342A (en) * 1935-03-06 1937-08-31 Viking Products Corp Clock
US2347665A (en) * 1941-03-04 1944-05-02 Christensen Geneva Bandy Internal reflection lighting means
CH291067A (fr) * 1951-04-09 1953-05-31 Parker Rowland Appareil lumineux d'exposition.
CH293325A (de) * 1951-08-23 1953-09-15 Bruellhardt & Co Lichtreklameapparat.
FR1245028A (fr) * 1959-09-25 1960-11-04 Presentations Artistiques Publ Panneau électrique publicitaire
US3248554A (en) * 1961-12-13 1966-04-26 Sperry Rand Corp Uniform intensity illumination system
US3328570A (en) * 1965-04-09 1967-06-27 Gen Electric Illuminated panel member
GB1130601A (en) * 1965-04-30 1968-10-16 Calorific Appliances Ltd Illuminated display apparatus
GB1284113A (en) * 1969-08-20 1972-08-02 Inst Avtomatiki I Telemekhanik Improvements relating to signs
US4059916A (en) * 1975-01-30 1977-11-29 Copal Company Limited Light diffusing device
US4068121A (en) * 1976-05-17 1978-01-10 Tally Corporation Light collector and prism light source for photoelectric readers
JPS54128450U ( ) * 1978-02-28 1979-09-06
US4385343A (en) * 1978-12-26 1983-05-24 Plumly George W Edge lighted devices

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8404838A1 *

Also Published As

Publication number Publication date
ES8503156A1 (es) 1985-02-16
AU2968484A (en) 1984-12-18
ES532834A0 (es) 1985-02-16
FR2546651A1 (fr) 1984-11-30
SE8302959D0 (sv) 1983-05-26
WO1984004838A1 (en) 1984-12-06
SE8302959L (sv) 1984-11-27

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB LI LU NL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19850429