DE19718309A1 - Light feeding method for light guide plates - Google Patents

Light feeding method for light guide plates

Info

Publication number
DE19718309A1
DE19718309A1 DE1997118309 DE19718309A DE19718309A1 DE 19718309 A1 DE19718309 A1 DE 19718309A1 DE 1997118309 DE1997118309 DE 1997118309 DE 19718309 A DE19718309 A DE 19718309A DE 19718309 A1 DE19718309 A1 DE 19718309A1
Authority
DE
Germany
Prior art keywords
light guide
guide plates
light
fluorescent tube
cutting edges
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Withdrawn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
DE1997118309
Other languages
German (de)
Inventor
Hans-Juergen Waechter
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.)
Werbe Fabry & Co KG GmbH
Original Assignee
Werbe Fabry & Co KG GmbH
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 Werbe Fabry & Co KG GmbH filed Critical Werbe Fabry & Co KG GmbH
Priority to DE1997118309 priority Critical patent/DE19718309A1/en
Publication of DE19718309A1 publication Critical patent/DE19718309A1/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Withdrawn legal-status Critical Current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
    • G02B6/0075—Arrangements of multiple light guides
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0031—Reflecting element, 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
    • G02B6/0033—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
    • G02B6/0055—Reflecting element, 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
    • G02B6/0066—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
    • G02B6/007—Incandescent lamp or gas discharge lamp
    • G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

The method involves arranging a fluorescent lamp parallel to the cutting edges of two or several flat light guide plates for feeding the light in the light guide plates. Alternatively, the light guide plates are curved radially and are arranged to e.g. a cylinder, are dished or differently formed. Reflectors are provided which reflect the remaining light in the cutting edges of the light guide plates. Reflectors are provided at the surfaces and at the cutting edges of the light guide plates at which the fed light should not emerge.

Description

Die Erfindung betrifft ein Verfahren zur gleichzeitigen Lichteinspeisung mittels Leuchtstoffröhren in zwei oder mehr Lichtleitplatten, sowie eine Vorrichtung zur Ausführung des Verfahrens.The invention relates to a method for the simultaneous supply of light by means of Fluorescent tubes in two or more light guide plates, and a device for Execution of the procedure.

Es sind Verfahren bekannt, bei denen das von einer Leuchtstofflampe ausgesandte Licht über einen Reflektor in eine Lichtleitplatte eingekoppelt wird. Diese Verfahren beschränken sich auf die Einkoppelung des Lichts in eine einzelne Lichtleitplatte. Da eine Leuchtstofflampe ihr Licht radial ausstrahlt, kommt dem Reflektor in diesem Verfahren die eigentliche Aufgabe zu, das Licht in die Lichtleitplatte einzukoppeln. Die heute zur Lichtleitung eingesetzten Lichtleitplatten sind in ihrer Dicke in der Regel kleiner oder gleich dem Durchmesser von Leuchtstofflampen; dadurch besitzt die Lichteinkoppelung auch mit optimierten Reflektoren einen relativ niedrigen Wirkungsgrad.Methods are known in which the light emitted by a fluorescent lamp is coupled into a light guide plate via a reflector. This procedure are limited to the coupling of the light into a single light guide plate. There one Fluorescent lamp emits its light radially, the reflector comes in this process the actual task of coupling the light into the light guide plate. Today's Light guide plates used are usually smaller or less in thickness equal to the diameter of fluorescent lamps; this has the light coupling relatively low efficiency even with optimized reflectors.

Der Zweck der vorliegenden Erfindung ist es, den Wirkungsgrad der Lichteinkoppelung in Lichtleiter maßgeblich zu erhöhen und damit die zur Beleuchtung benötigte Energie deutlich zu reduzieren.The purpose of the present invention is to increase the efficiency of light coupling in To significantly increase the light guide and thus the energy required for lighting to reduce significantly.

Gelöst wird diese Aufgabe durch das Verfahren - nach dem Schutzanspruch 1 - zur gleichzeitigen, mehrseitigen Einkoppelung des Lichts einer Leuchtstoffröhre in mehrere Lichtleitplatten, wobei die Leuchtstoffröhre idealerweise zentrisch und parallel zu den Schnittkanten von zwei oder mehreren Lichtleitplatten angeordnet wird.This problem is solved by the method - according to protection claim 1 - for simultaneous, multi-sided coupling of the light of a fluorescent tube into several Light guide plates, the fluorescent tube ideally centrally and parallel to the Cutting edges of two or more light guide plates is arranged.

Der Hauptvorteil dieses Verfahrens liegt darin, daß durch die günstigeren optischen Verhältnisse der Wirkungsgrad der Lichteinkoppelung gegenüber den bekannten Verfahren annähernd verdoppelt wird.The main advantage of this method is that the cheaper optical Ratios of the efficiency of light coupling compared to the known Procedure is almost doubled.

Ein weiterer Vorteil dieser Ausführungsform besteht darin, daß der Aufbau von großen Leuchtflächen durch Aneinanderreihen von einzelnen Lichtleitplatten bei gutem Wirkungsgrad ermöglicht wird.Another advantage of this embodiment is that the structure is large Illuminated surfaces by lining up individual light guide plates with good Efficiency is made possible.

Ein weiterer Vorteil ergibt sich durch die Lage der Leuchtstoffröhre zwischen den Lichtleitplatten. Aufgrund dieser Position sind Wartungsarbeiten, wie etwa ein Lampenwechsel, einfach durchzuführen.Another advantage is the location of the fluorescent tube between the Light guide plates. Because of this position, maintenance work, such as a Lamp replacement, easy to do.

Die entsprechende Vorrichtung zur Lichteinspeisung in die Lichtleitplatten weist folgende Anordnung auf:
The corresponding device for feeding light into the light guide plates has the following arrangement:

  • - Eine Leuchtstoffröhre, welche parallel zu den Schnittkanten von zwei oder mehreren Lichtleitplatten angeordnet ist.- A fluorescent tube, which is parallel to the cut edges of two or more Light guide plates is arranged.
  • - Flache, planliegende Lichtleitplatten mit polierten geraden Kanten.- Flat, flat light guide plates with polished straight edges.
  • - Alternativ: Radial gebogene, gewölbte oder, in ihrem Flächenverlauf anders verformte Lichtleitplatten, mit polierten geraden Kanten.- Alternatively: Radially curved, arched or differently shaped in terms of their surface course Light guide plates, with polished straight edges.
  • - Reflektoren, die das indirekte Licht der Leuchtstoffröhre in die Schnittkanten der Lichtleitplatten zurücklenken.- Reflectors that direct the indirect light of the fluorescent tube into the cut edges of the Deflect the light guide plates.
  • - Reflektoren, mit denen die Flächen und Schnittkanten der Lichtleitplatten, an denen das eingespeiste Licht nicht austreten soll, bestückt sind.- Reflectors with which the surfaces and cut edges of the light guide plates on which the fed light should not exit, are equipped.
BezugszeichenlisteReference list

Fig. 1 Beispiel: Lichteinspeisung in zwei Lichtleitplatten (Draufsicht)
A Reflektor
B Leuchtstoffröhre
C Lichtleitplatte Fig. 1 Example: light feed in two light guide plates (top view)
A reflector
B fluorescent tube
C light guide plate

Fig. 2 Beispiel: Lichteinspeisung in mehr als zwei Lichtleitplatten (Draufsicht) Fig. 2 Example: Light feed in more than two light guide plates (top view)

Fig. 3 Beispiel: Lichteinspeisung in zwei Lichtleitplatten (Frontalansicht)
A Reflektor
B Leuchtstoffröhre
C Lichtleitplatte Fig. 3 Example: light feed in two light guide plates (front view)
A reflector
B fluorescent tube
C light guide plate

Claims (3)

1. Verfahren zur mehrseitigen Einspeisung des Lichts einer Leuchtstoffröhre in mehrere planliegende Lichtleitplatten, wobei eine Leuchtstofflampe parallel zu den Schnittkanten von zwei oder mehreren Lichtleitplatten angeordnet wird.1. Method for multi-sided feeding of the light of a fluorescent tube in several flat light guide plates, one fluorescent lamp parallel to the Cutting edges of two or more light guide plates is arranged. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Lichtleitplatten radial gebogen und, beispielsweise, zu einem Zylinder angeordnet, gewölbt oder in ihrem Flächenverlauf anders geformt sind.2. The method according to claim 1, characterized in that the light guide plates radially bent and, for example, arranged into a cylinder, curved or in are shaped differently. 3. Vorrichtung zur mehrseitigen Einspeisung des Lichts einer Leuchtstoffröhre in mehrere Lichtleitplatten, bei der eine Leuchtstoffröhre parallel zu den Schnittkanten von zwei oder mehreren Lichtleitplatten angeordnet ist und die einen Reflektor enthält, der das restliche Licht in die Schnittkanten der Lichtleitplatten lenkt.3. Device for the multi-sided feeding of the light of a fluorescent tube in several light guide plates, with a fluorescent tube parallel to the cut edges is arranged by two or more light guide plates and a reflector contains, which directs the remaining light into the cut edges of the light guide plates.
DE1997118309 1997-04-30 1997-04-30 Light feeding method for light guide plates Withdrawn DE19718309A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997118309 DE19718309A1 (en) 1997-04-30 1997-04-30 Light feeding method for light guide plates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1997118309 DE19718309A1 (en) 1997-04-30 1997-04-30 Light feeding method for light guide plates

Publications (1)

Publication Number Publication Date
DE19718309A1 true DE19718309A1 (en) 1998-11-05

Family

ID=7828250

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997118309 Withdrawn DE19718309A1 (en) 1997-04-30 1997-04-30 Light feeding method for light guide plates

Country Status (1)

Country Link
DE (1) DE19718309A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921689U1 (en) * 1999-12-09 2001-04-19 Emde Thomas Light-emitting wall, wall opening, ceiling and facade cladding system for buildings

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921689U1 (en) * 1999-12-09 2001-04-19 Emde Thomas Light-emitting wall, wall opening, ceiling and facade cladding system for buildings

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee