DE19507902A1 - Edge-illuminated sign with long-persistence white reflecting coating - Google Patents
Edge-illuminated sign with long-persistence white reflecting coatingInfo
- Publication number
- DE19507902A1 DE19507902A1 DE1995107902 DE19507902A DE19507902A1 DE 19507902 A1 DE19507902 A1 DE 19507902A1 DE 1995107902 DE1995107902 DE 1995107902 DE 19507902 A DE19507902 A DE 19507902A DE 19507902 A1 DE19507902 A1 DE 19507902A1
- Authority
- DE
- Germany
- Prior art keywords
- light
- edge
- coating
- long
- illuminated sign
- 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.)
- Ceased
Links
- 239000011248 coating agent Substances 0.000 title claims abstract description 10
- 238000000576 coating method Methods 0.000 title claims abstract description 10
- 239000000463 material Substances 0.000 claims description 5
- 239000002245 particle Substances 0.000 abstract description 2
- 239000012780 transparent material Substances 0.000 abstract description 2
- 230000003287 optical effect Effects 0.000 description 4
- 239000000049 pigment Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 240000001913 Atriplex hortensis Species 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical class [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
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
- G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
-
- 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
- G02B6/0003—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 doped with fluorescent agents
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts 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
- G02B6/0035—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
-
- 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Description
Rettungszeichenleuchten und Leuchten zur Sicherheitskennzeichnung, die im Rahmen einer Sicherheitsbeleuchtung nach Ausfall der Stromversorgung der Allgemeinbeleuchtung eingesetzt werden, sollen Rettungswege und Sicherheitseinrichtungen für vorgegebene Zeiten auch weiterhin zu kennzeichnen und markieren.Escape sign luminaires and luminaires for safety marking, which are in the Frame of security lighting after power failure of the Escape routes and general lighting are to be used Safety devices for specified times continue to label and mark.
In extremen Fällen, z. B. auf bei Installation auf Schiffen muß jedoch damit gerechnet werden, daß auch die Notstromversorgung durch gewaltsame Einwirkung von außen unterbrochen wird. In diesen Fällen ist es wünschenswert, daß zumindest ein Teil der Sicherheitsaussage des Zeichens z. B. durch Einbettung in ein Sicherheitsleitsystem für eine gewisse Zeit erhalten bleibt, ohne daß dafür eine elektrische Energiezufuhr benötigt wird.In extreme cases, e.g. B. on installation on ships, however, must can be expected that the emergency power supply by violent External action is interrupted. In these cases it is desirable that at least part of the security statement of the character z. B. obtained by embedding it in a security control system for a certain time remains without the need for an electrical power supply.
Aufgabe der Erfindung ist es deshalb, ein optisches System zu finden, das bei Normalbetrieb die Anforderungen an hinterleuchtete Rettungszeichen erfüllt, bei Unterbrechung der allgemeinen Stromversorgung weiter als Sicherheitsleuchte betrieben wird, unter Einhaltung der dafür existierenden Vorschriften und welches System bei Unterbrechung der Notstromzufuhr mit einer Resthelligkeit für eine gewisse Zeit das Rettungszeichen weiter hinterleuchtet.The object of the invention is therefore to find an optical system that Normal operation meets the requirements for backlit escape signs Interruption of the general power supply continues as a safety lamp is operated in compliance with the existing regulations and which system with residual brightness when the emergency power supply is interrupted the escape sign is backlit for a while.
Zur Lösung der Erfindungsaufgabe wird eine Rettungszeichenleuchte in Scheibenleuchtentechnik benutzt.An escape sign luminaire is used to solve the invention task Disc lighting technology used.
Derartige Scheibenleuchten besitzen scheibenförmige Lichtverteilungskörper mit kompakten Lichtleitscheiben in deren Inneren sich das über eine Lichteintrittskante eingespeiste Licht ausbreitet. Such disc lights have disc-shaped light distribution bodies with compact light guide disks inside that over a Light leading edge spreads injected light.
Dies geschieht durch den Effekt der Totalreflexion. Wird eine solche Scheibe mit einer lichtstreuenden Beschichtung versehen, wird an diesen Stellen die Totalreflexion unterbrochen und das Licht tritt an diesen Stellen aus der Lichtleitscheibe aus.This is done through the effect of total reflection. Becomes such a disc provided with a light-scattering coating, the Total reflection is interrupted and the light emerges at these points Light guide disc.
Dieser Lichtaustritt wird zur Hinterleuchtung von Hinweiselementen, z. B. Rettungszeichen genutzt.This light emission is used for backlighting information elements, e.g. B. Escape signs used.
Zur Lösung der Erfindungsaufgabe wird zur Aufrechterhaltung einer Restleuchtdichte eine weiße eventuell fluoreszierende Farbe mit langnachleuchtenden Pigmenten wie z. B. in der DIN 67510 genormt, eingesetzt.To solve the invention task is to maintain a Residual luminance with a white fluorescent color long afterglow pigments such as B. standardized in DIN 67510, used.
Die in diesen Pigmenten enthaltenen Zinksulfide haben lang nachleuchtende Eigenschaften. Sie sind in der Lage Licht zu reflektieren, jedoch besitzen Folien oder Scheiben die mit diesem Material dotiert sind schlechte Transmissionseigenschaften.The zinc sulfides contained in these pigments have long afterglow Properties. They are able to reflect light, but they have foils or discs that are doped with this material are bad Transmission properties.
Die erfindungsgemäße Lösung nutzt deshalb die gegenüber der Transmission besseren Reflexionseigenschaften langnachleuchtender Produkte aus.The solution according to the invention therefore uses that of transmission better reflective properties of long-afterglow products.
Eine Beleuchtung von Schildern mit langnachleuchtenden Produkten ist ebenfalls nicht vorteilhaft, weil die Erkennungsweiten beleuchteter Schilder bekanntlich wesentlich schlechter sind als diejenigen hinterleuchteter Zeichen.Illumination of signs with long-afterglow products is also not advantageous because the recognition distances of illuminated signs are known to be significantly worse than those of backlit signs.
Erfindungsgemäß wird deshalb ein Aufbau einer Lichtleitscheibe vorgeschlagen, bei der das langnachleuchtende Material im Fall einer intakten Stromversorgung als Reflexionsfläche zur Hinterleuchtung eines Zeichens und somit wenig Verluste verursacht und im Falle der Unterbrechnung der Stromversorgung als Strahlungsquelle zur Hinterleuchtung des Rettungszeichens dient.According to the invention, a structure of a light guide disk is therefore proposed, where the long afterglow material in the case of an intact power supply as a reflective surface for backlighting a sign and therefore little Losses caused and in the event of power supply interruption Radiation source for backlighting the escape sign.
Zu diesem Zweck wird die den Rettungszeichen, Sicherheitszeichen oder Hinweiselementen abgewandten Seite der Lichtleitscheibe im Bereich der lichtabstrahlenden Fläche zur Hinterleuchtung des Piktogrammes mit langnachleuchtendem Material möglichst große Dichte der langnachleuchtenden Pigmente beschichtet.For this purpose, the escape sign, safety sign or Information elements facing away from the light guide in the area of light-emitting surface for backlighting the pictogram with long afterglow material as high a density as possible long-afterglow pigments coated.
Die Beschichtung kann vorzugsweise gleichmäßig sein, zum Ausgleich von Ungleichmäßigkeiten bei der Reflexion kann jedoch auch eine entsprechend ausgleichende Rasterung gewählt werden, die jedoch im Falle des Nachleuchtens wiederum zu Ungleichmäßigkeiten führt.The coating can preferably be uniform to compensate for However, non-uniformities in the reflection can also be a corresponding balancing grid can be selected, which, however, in the case of Afterglow in turn leads to irregularities.
Auf der Beschichtung gegenüberliegenden Seite der Lichtleitscheibe wird das Rettungszeichen, Sicherheitszeichen oder Hinweiselement angebracht.This is on the opposite side of the light guide Exit sign, safety sign or information element attached.
Vorzugsweise geschieht dies in optischer Trennung von der Scheibe. Vorzugsweise ist darüber hinaus das Zeichen auswechselbar gestaltet. Es ist aber auch möglich, das Zeichen direkt auf den Lichtleitkörper zu drucken.This is preferably done in optical separation from the pane. In addition, the character is preferably designed to be exchangeable. It is but it is also possible to print the sign directly on the light guide.
Im Falle der optischen Trennung ist die Trägerfolie bzw. Scheibe vorzugsweise klar transparent oder zumindest transluzent, um im Falle des Nachleuchtens einen möglichst großen Transmissionsgrad zu besitzen. In the case of optical separation, the carrier film or disk is preferred clearly transparent or at least translucent, in case of afterglow to have the highest possible transmittance.
Die Erfindung ist anhand des Bildes 1 beispielhaft erläutert.The invention is explained by way of example with reference to Figure 1.
Eine Lichtleitplatte 2 besteht aus klar transparentem Material, das mit volumenstreuenden oder vorwärtsstreuenden Partikeln versetzt sein kann. In diese Lichtleitplatte wird über mindestens eine Lichteintrittskante aus einer geeigneten Optik 1 Licht eingespeist.A light guide plate 2 consists of clearly transparent material which can be mixed with volume-scattering or forward-scattering particles. 1 light is fed into this light guide plate via at least one light entry edge from a suitable optical system.
Das eingespeiste Licht wird durch eine diffuse, gerasterte oder vollflächige weiße Beschichtung 3 aus der Lichtleitplatte 2 ausgelenkt.The light that is fed in is deflected out of the light guide plate 2 by a diffuse, screened or full-surface white coating 3 .
Das ausgelenkte Licht wird zur Hinterleuchtung eines Piktogramms 4 benutzt, das entweder z. B. durch Siebdruck direkt auf die Lichtleitplatte 2 aufgebracht ist oder mittels einer Trägerfolie vor der Lichtleitplatte angebracht ist. Die Beschichtung 3 besteht aus weiß reflektierendem lang nachleuchtendem Material, das auch nach Ausfall der Beleuchtung 1 eine Restleuchtdichte liefert. Die beschichtete Fläche, entsprechend das Piktogramm, kann die gesamte Fläche der Lichtleitplatte überdecken oder einen Teil z. B. wie dargestellt den Rand freilassen.The deflected light is used for backlighting a pictogram 4 , which either z. B. is applied directly to the light guide plate 2 by screen printing or is attached in front of the light guide plate by means of a carrier film. The coating 3 consists of white reflective, long afterglow material, which provides a residual luminance even after the lighting 1 fails. The coated surface, corresponding to the pictogram, can cover the entire surface of the light guide plate or a part z. B. leave the edge as shown.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995107902 DE19507902A1 (en) | 1995-03-07 | 1995-03-07 | Edge-illuminated sign with long-persistence white reflecting coating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1995107902 DE19507902A1 (en) | 1995-03-07 | 1995-03-07 | Edge-illuminated sign with long-persistence white reflecting coating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19507902A1 true DE19507902A1 (en) | 1996-09-12 |
Family
ID=7755833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1995107902 Ceased DE19507902A1 (en) | 1995-03-07 | 1995-03-07 | Edge-illuminated sign with long-persistence white reflecting coating |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE19507902A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077443A1 (en) * | 1999-06-14 | 2000-12-21 | Honeywell Specialty Chemicals Seelze Gmbh | Enhancing the luminance of longtime luminescent and/or fluorescent surfaces |
| DE10119371B4 (en) * | 2001-04-20 | 2009-03-26 | Stell Gmbh | Light conducting plate |
-
1995
- 1995-03-07 DE DE1995107902 patent/DE19507902A1/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000077443A1 (en) * | 1999-06-14 | 2000-12-21 | Honeywell Specialty Chemicals Seelze Gmbh | Enhancing the luminance of longtime luminescent and/or fluorescent surfaces |
| DE10119371B4 (en) * | 2001-04-20 | 2009-03-26 | Stell Gmbh | Light conducting plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8110 | Request for examination paragraph 44 | ||
| 8131 | Rejection |