EP0388643A3 - Leuchtsymbolkörper - Google Patents
Leuchtsymbolkörper Download PDFInfo
- Publication number
- EP0388643A3 EP0388643A3 EP19900103237 EP90103237A EP0388643A3 EP 0388643 A3 EP0388643 A3 EP 0388643A3 EP 19900103237 EP19900103237 EP 19900103237 EP 90103237 A EP90103237 A EP 90103237A EP 0388643 A3 EP0388643 A3 EP 0388643A3
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- symbol
- body according
- housing
- symbol body
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0404—Signs, boards or panels, illuminated from behind the insignia the light source being enclosed in a box forming the character of the sign
Definitions
- the present invention relates to a light symbol body by, especially for outdoor advertising lettering.
- outdoor advertising logos consist of letter housings that Are designed to be opaque and their in the housing integrated light sources emit light to the rear. On this is the case when writing in a certain distance from a light wall surface the Wall lit so that the letters are dark opposite the brightly lit wall surface to which it is attached are to emerge.
- the present invention is based on the object indirectly illuminated light symbol body of the above ge described art to improve that independent always a uniformly bright background from the place of attachment reason is created in the area of the symbol contours, so that a uniform appearance regardless of Background of outdoor advertising lettering can.
- the principle lies in the light symbol body according to the invention based on the back of the symbol with a transparent plat te to complete the one at the symbol perimeter survives a certain amount and this plate in particular to design at their edges so that from the plate outgoing light forwards to the observer of the light font is emitted without any further backscattering background.
- Figure 1 shows a light source (1), the predominant Part is housed in a housing (3) which is in Section seen from 3 walls, 2 side walls and one Floor is made, which are glued together.
- the case forms the symbol body, e.g. a letter.
- the Ge House walls are made of acrylic glass, which is white on the inside is lacquered light-tight. It can of course also housings made of metal or other materials Ver find application, and light tightness can also be used Achievement of certain effects is not required in certain areas be so.
- the case back can be flat, as shown but it can also be any desired shape, e.g. a Roof shape or other profiles.
- the housing (3) is closed by a plate (2), in which a channel (4) is incorporated, which is part of the Light source (1) receives in itself.
- a shoulder (9) protrudes into the interior of the housing (3) the plate (2), which is form-fitting on the edge of the housing (3) with the inside of the side walls of the housing (3) closes.
- the plate (2) and the housing (3) into one another using countersunk screws (12) attached.
- the shoulders can be made in one piece from the plat te (2) can be molded out, they can also be glued on Tongues to be attached later.
- the plate (2) is made here from clear acrylic glass, there are but also other materials, such as quartz glass or such a thing is conceivable.
- Figure 2 shows the symbol body according to Figure 1 from the side, partially cut lengthways.
- the light source used in 1 is a fluorescent tube that is U-shaped at its ends is bent into the interior of the housing so that the Part of the fluorescent tube containing fluorescent material to close can be guided to the upper edge of the housing.
- the electrode of the fluorescent tube is attached to the Plate 2 attached electrode cover, the grid-shaped can be designed, e.g. in the form of a perforated plate protected from external influences. Furthermore are for the bracket the tube - also not shown - Glashalterungsstif te provided that in holes on both sides of the groove engage and span part of the tube.
- the acrylic sheet (2) shows the one on the left in FIG Edge provided edge grinding.
- Figure 3 shows the light symbol body partially cut in plan view.
- the channel (4) is incorporated into the plate (2) mills and follows the with essentially constant clearance Contours of the fluorescent tube (1).
- the shaped symbol bodies are rei into the interior of the housing corresponding openings (14) for the power supply for the Fluorescent tube (1) provided.
- FIGS. 4a-h Various shapes are possible in FIGS. 4a-h opportunities for over the side walls of the housing (3) standing edge areas of the plate (2) shown.
- Figure 4a shows the simplest case in which the plate (2) only added perpendicular to the main surfaces of the plate is cut, with a constant supernatant compared to the side walls of the housing (3) is observed.
- the light emitted by the light source (1) occurs the side walls of the channel (4) with refraction of the beam
- enter the transparent plate (2) where a large one Part of the light on the back (15) of the plate (2) right is inflected.
- Part of the reflected light occurs to the side walls of the housing (3) parallel Cut surfaces of the plate and partly in the area of the Peripheral edge (5) of the plate (2) with renewed refraction out.
- the variant shown in Figure 4b has a groove (8) in the area of the peripheral edge of the plate (2), which the The effect is that it emanates in the direction of the viewer tends light more strongly along the side surfaces of the housing (3) is performed.
- the embodiments according to the figures 4 c and d have the opposite effect, i.e.
- FIG. 4c it is on to increase the reflection the back (15) of the plate (2) from a coating Highly reflective material attached.
- This can be a Foil made of aluminum or a chemical one Highly reflective paths or vaporizing attached animal layer made of aluminum, silver or the like.
- Figure 4d also shows 2 variants in which the The back of the plate is either concave or convex.
- the concave curve shown in the left half causes a further fanning out of the forward Light, whereas the convex bottom shape on the right side tends to bundle the forward thrown light leads.
- Figures 4 e and f point in the peripheral edge areas of the plate (2) roundings (7) that either on the at the top as well as at the bottom or just at the top may be appropriate. Also this edge design in shape of cylindrical lenses causes a specific beam guidance, which here leads to the fact that the mecanickop into the plate (2) pelte light from the viewer as a clearly delineated narrow strip of light is perceived that the Silhouette of symbol body surrounds.
- Fig. 4g shows a plate 2 with a trapezoidal cross cut, the longest edge being the housing 3 turned surface describes.
- the angle of inclination ⁇ of the Um catch edge compared to the above surface 60 °. This value affects the plastic measure used material a very favorable light beam guidance approximately parallel towards the housing side walls towards the viewer. At be For certain applications, there are also partly other no angle in question. So is a smaller angle of inclination for example, at the lower edges of symbols, if the Symbol bodies far above the eye level of the viewer are assigned to a light reflection obliquely downwards cause.
- the channel 4 is here with partly sloping sides walls milled.
- the resulting from the milling easily roughened surface is for the coupling of light the tube in the plastic material is advantageous and will therefore leave it that way.
- Starting from the tube into the Plastic material coupled light is at the order reflective edge. Most of the rays hit at an angle greater than or equal to the angle of the To valley reflection on the inclined edge surface. This takes place an optimal radiation of the light rays in the direction on the viewer, creating the contours of the luminous symbol body stand out sharply.
- the channel 4 at its ends especially when very slim ken symbol bodies, e.g. with the letters "I”, “H”, “N” etc., transverse to its longitudinal extent to the edges of the Symbol body expanded.
- This expansion can be done in the essential to be triangular in plan view, with the base parallel to the narrow end of a symbol body. It can it is enough to mill a narrow groove that End of channel widens "T" -shaped.
- the rough milled Ka Wall walls diffuse the light from the light source evenly on the inclined edges of the symbol body pers at the channel ends, so that all around the symbol body around a uniform light distribution prevails.
- Fig. 4h shows a wider symbol body, in which Plate two channels for receiving fluorescent tubes are worked. This ensures that the distance the fluorescent tube to the edge to be illuminated by it doesn't get too big.
- symbol bodies with an at least partially transparent housing base ensures even illumination of the floor.
- the inner surfaces of the channel (4) approximately through sand rays to roughen up, thus reducing the coupling of light to increase in the transparent plate body (2).
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Schriftzüge, die mit den erfindungsgemäßen Leuchtsymbol körpern erstellt werden, können ohne Rücksicht auf den Hintergrund angebracht werden und bewirken eine indirekte Beleuchtung des Schriftzuges in stets gleichbleibender Weise.
Description
Claims (19)
gekennzeichnet durch
- ein eine Lichtquelle (1) aufnehmendes Gehäuse (3) in Form des Symbols, das zur Symbolrückseite hin offen ist, und
- eine transparente, über die Symbolumfangsränder überstehende Platte (2) an der Symbolrückseite.
dadurch gekennzeichnet, daß
die Platte (2) aus Acryl-Glas gefertigt ist.
dadurch gekennzeichnet, daß
die Platte (2) auf Ihrer zum Gehäuseinneren gelegenen Seite einen Kanal (4) zur mindestens teilweisen Auf nahme der Lichtquelle (1) aufweist.
dadurch gekennzeichnet, daß
der Umfangsrand (5) der Platte (2) prismenförmig abge schrägt ist.
dadurch gekennzeichnet, daß
der Umfangsrand der Platte (2) mindestens an der zur Symbolvorderseite gelegenen Seite abgerundet ist (7).
dadurch gekennzeichnet, daß
die Platte (2) ausgehend von dem Gehäuserand an dessen offener Seite plan abgeschrägt ist.
dadurch gekennzeichnet, daß
die Platte (2) in ihrem über die Symbolumfangsränder überstehenden Bereich eine Nut (8) mit dreieckigem Querschnitt aufweist, deren eine Seite mit den Gehäuseseitenwänden fluchtet und deren andere Seite schräg mit spitzem Winkel auf den Plattenrand zuläuft.
dadurch gekennzeichnet, daß
die Platte (2) eine formschlüssig mit den Gehäuseinnen seitenwänden geformte, in das Gehäuseinnere ragende Schulter (9) aufweist, an der das Gehäuse (3) und die Platte (2) miteinander verschraubt sind.
dadurch gekennzeichnet, daß
die von dem Gehäuse weg weisende Seite der Platte (2) mit einer hochreflektierenden Folie (10) oder Beschichtung (11) verkleidet ist.
dadurch gekennzeichnet, daß
die Plattenrückseite konkav oder konvex gekrümmt ist.
dadurch gekennzeichnet, daß
das Gehäuse (3) lichtundurchlässig ist.
dadurch gekennzeichnet, daß
die Lichtquelle eine Leuchtstoffröhre ist, deren Form den Konturen des Symbols im Gehäuseinneren folgt.
dadurch gekennzeichnet, daß
die Platte (2) stellenweise aufgerauht ist.
dadurch gekennzeichnet, daß
die Platte (2) auf der dem Gehäuse (3) zugewandten Seite plan ist und der Plattenumfangsrand unter spit zem Winkel zu der dem Gehäuse (3) abgewandten Platten seite geneigt ist.
dadurch gekennzeichnet, daß
der Neigungswinkel α des Plattenumfangsrands 60° be trägt.
dadurch gekennzeichnet, daß
der Neigungswinkel α des Plattenumfangsrands gegenüber der Plattenoberfläche zwischen 30 und 60° liegt.
dadurch gekennzeichnet, daß
als Lichtquelle mehrere Leuchtstoffröhren über das In nenvolumen des Gehäuses gleichmäßig verteilt angeord net sind.
dadurch gekennzeichnet, daß
das Gehäuse auf der Symbolvorderseite vollständig oder bereichsweise transparent ist.
dadurch gekennzeichnet, daß
die Kanalenden 4 in ihrer Breite aufgeweitet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE8903700U | 1989-03-23 | ||
DE8903700U DE8903700U1 (de) | 1989-03-23 | 1989-03-23 | Leuchtsymbolkörper |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0388643A2 EP0388643A2 (de) | 1990-09-26 |
EP0388643A3 true EP0388643A3 (de) | 1991-04-03 |
EP0388643B1 EP0388643B1 (de) | 1992-05-20 |
Family
ID=6837511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90103237A Expired - Lifetime EP0388643B1 (de) | 1989-03-23 | 1990-02-20 | Leuchtsymbolkörper |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0388643B1 (de) |
AT (1) | ATE76525T1 (de) |
DE (2) | DE8903700U1 (de) |
DK (1) | DK0388643T3 (de) |
ES (1) | ES2031714T3 (de) |
GR (1) | GR3004705T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE8903700U1 (de) * | 1989-03-23 | 1989-05-11 | Härter, Dieter, 81545 München | Leuchtsymbolkörper |
DE9308782U1 (de) * | 1993-06-09 | 1993-08-19 | Fischer, Florian, 10967 Berlin | Leuchtelement, insbesondere für Informations- und Werbezwecke |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3507065A (en) * | 1967-12-21 | 1970-04-21 | Technical Ordnance Inc | Overlay for illuminating tubing |
GB1204372A (en) * | 1967-03-23 | 1970-09-09 | Hawesigns Ltd | Improvements in electrically illuminated display signs |
DE8903700U1 (de) * | 1989-03-23 | 1989-05-11 | Härter, Dieter, 81545 München | Leuchtsymbolkörper |
-
1989
- 1989-03-23 DE DE8903700U patent/DE8903700U1/de not_active Expired
-
1990
- 1990-02-20 EP EP90103237A patent/EP0388643B1/de not_active Expired - Lifetime
- 1990-02-20 DK DK90103237.5T patent/DK0388643T3/da active
- 1990-02-20 AT AT90103237T patent/ATE76525T1/de not_active IP Right Cessation
- 1990-02-20 DE DE9090103237T patent/DE59000128D1/de not_active Expired - Lifetime
- 1990-02-20 ES ES199090103237T patent/ES2031714T3/es not_active Expired - Lifetime
-
1992
- 1992-05-26 GR GR920401041T patent/GR3004705T3/el unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1204372A (en) * | 1967-03-23 | 1970-09-09 | Hawesigns Ltd | Improvements in electrically illuminated display signs |
US3507065A (en) * | 1967-12-21 | 1970-04-21 | Technical Ordnance Inc | Overlay for illuminating tubing |
DE8903700U1 (de) * | 1989-03-23 | 1989-05-11 | Härter, Dieter, 81545 München | Leuchtsymbolkörper |
Also Published As
Publication number | Publication date |
---|---|
EP0388643B1 (de) | 1992-05-20 |
ATE76525T1 (de) | 1992-06-15 |
DE8903700U1 (de) | 1989-05-11 |
DE59000128D1 (de) | 1992-06-25 |
ES2031714T3 (es) | 1992-12-16 |
DK0388643T3 (da) | 1992-07-13 |
EP0388643A2 (de) | 1990-09-26 |
GR3004705T3 (de) | 1993-04-28 |
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