DE685850C - Device for indirect lighting of a transparent sign using incandescent lamps - Google Patents
Device for indirect lighting of a transparent sign using incandescent lampsInfo
- Publication number
- DE685850C DE685850C DEM141613D DEM0141613D DE685850C DE 685850 C DE685850 C DE 685850C DE M141613 D DEM141613 D DE M141613D DE M0141613 D DEM0141613 D DE M0141613D DE 685850 C DE685850 C DE 685850C
- Authority
- DE
- Germany
- Prior art keywords
- incandescent lamps
- housing
- shielding
- reflectors
- transparent
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Description
Die Erfindung bezieht sich, auf eine Vorrichtung zur indirekten Beleuchtung eines Transparentschildes mittels Glühlampen, die in einem reflektierenden Gehäuse angeordnet sind und die durch Abschirmreflektoren an der direkten Bestrahlung des Transparentschildes gehindert werden. Die bekannten Vorrichtungen haben den Nachteil, daß die Abschirmreflektoren störend wirken, weil sie zur Bildung dunkler Stellen auf dem Transparentschild Anlaß geben.The invention relates to an apparatus for indirect lighting of a transparent sign using incandescent lamps that are arranged in a reflective housing and connected by shielding reflectors the direct irradiation of the transparent sign are prevented. The known Devices have the disadvantage that the shielding reflectors are disruptive because they cause dark spots to form on the transparent sign.
Erfindungsgemäß ist nicht nur die den Glühlampen zugekehrte Innenseite der Abschirmreflektoren, sondern auch die den Glühlampen abgewendete Außenseite der Abschirmreflektoren verspiegelt, wobei die Abschirmreflektoren so gewölbt sind, daß die von dem Gehäuse auf die Außenseite der Abschirmreflektoren treffenden Lichtstrahlen auf den direkt vor den Abschirmreflektoren liegenden Teil des Transparentschildes fallen. Damit wird erreicht, daß auch die durch die Reflektoren abgedeckten Stellen gleichmäßig aufgehellt werden, so daß die vorgeschalteten Schirme nicht störend in Erscheinung treten. Der direkt hinter den Glühlampen befindliche Teil des Gehäuses ist dunkler als der "übrige Teil des Gehäuses ausgebildet. Dadurch werden die Lichthöfe beseitigt, die auf dem Reflektor durch die senkrecht aufstrahlenden Lichtstrahlen entstehen würden. Es ergibt sich somit eine gleichmäßige Oberflächenhelle. Die dunkle Ausbildung des hinter den Glühlampen befindlichen Gehäuseteiles kann unter anderem durch einen dunklen Werkstoff, eine Farbe o. dgl. erreicht werden.According to the invention, not only is the inside of the shielding reflectors facing the incandescent lamps, but also the outside of the shielding reflectors facing away from the incandescent lamps mirrored, the shielding reflectors are curved so that the of the housing on the outside of the Shielding reflectors hit the light rays directly in front of the shielding reflectors lying part of the transparent shield. This ensures that the through the reflectors covered areas are evenly brightened, so that the upstream Umbrellas do not appear disturbing. The one right behind the lightbulbs located part of the housing is darker than the "remaining part of the housing. This eliminates the halos on the reflector caused by the perpendicular Rays of light would arise. This results in a uniform surface brightness. The dark formation of the housing part located behind the light bulbs can, among other things, be replaced by a dark one Material, color or the like. Can be achieved.
Auf der Zeichnung ist die Erfindung in beispielsweiser Ausführungsform dargestellt, und zwar zeigtIn the drawing, the invention is shown in an exemplary embodiment, namely shows
Abb. ι einen Schnitt durch die Vorrichtung, Fig. Ι a section through the device,
Abb. 2 eine Vorderansicht, Abb. 3 einen Schnitt nach der Linie B-B. Fig. 2 is a front view, Fig. 3 is a section along the line BB.
Das Schild besteht aus dem Lampengehäuse a, auf welchem die Transparentscheibe b befestigt ist. An der reflektierenden Hinterwand des Gehäuses« sitzt in üblicher Weise der Birnenhalter c, an dem das auf beiden Seiten reflektierende Abschirmschild d aufgesteckt und die Birne c federnd eingehängt ist.The shield consists of the lamp housing a on which the transparent panel b is attached. On the reflective rear wall of the housing 'sits the bulb holder c in the usual way, on which the shielding shield d , which is reflective on both sides, is attached and the bulb c is resiliently suspended.
Unmittelbar hinter der Birne c zieht sich der Reflektionsausgleicher / hin, welcher die nahezu senkrecht auffallenden Strahleng· so reflektiert, daß sie mit den Strahlen h auf gleiche Stärke abgestimmt sind.Immediately behind the bulb c , the reflection compensator / extends, which reflects the almost perpendicularly incident rays in such a way that they are matched to the rays h to the same strength.
Die Strahleni werden am Gehäuse« im entsprechenden Winkel zurückgeworfen und fallen auf die reflektierende Außenseite des Abschirmschildes d und gelangen von da an die Transparentfläche oder Transparentscheibe b. The raysi are reflected back at the housing at the appropriate angle and fall on the reflective outside of the shielding shield d and from there reach the transparent surface or transparent pane b.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM141613D DE685850C (en) | 1938-05-12 | 1938-05-12 | Device for indirect lighting of a transparent sign using incandescent lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM141613D DE685850C (en) | 1938-05-12 | 1938-05-12 | Device for indirect lighting of a transparent sign using incandescent lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE685850C true DE685850C (en) | 1939-12-27 |
Family
ID=7334866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM141613D Expired DE685850C (en) | 1938-05-12 | 1938-05-12 | Device for indirect lighting of a transparent sign using incandescent lamps |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE685850C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015717A (en) * | 1959-05-21 | 1962-01-02 | Structural Electric Products C | Runway light |
| DE102004037373A1 (en) * | 2004-08-02 | 2006-03-16 | Ulrich Michael Kipper | Lighting system for an advertising space comprises a housing containing a lighting unit with light sources, an electrical supply unit and an energy conversion unit for converting environmental energy into electrical energy |
-
1938
- 1938-05-12 DE DEM141613D patent/DE685850C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3015717A (en) * | 1959-05-21 | 1962-01-02 | Structural Electric Products C | Runway light |
| DE102004037373A1 (en) * | 2004-08-02 | 2006-03-16 | Ulrich Michael Kipper | Lighting system for an advertising space comprises a housing containing a lighting unit with light sources, an electrical supply unit and an energy conversion unit for converting environmental energy into electrical energy |
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