DE202004019916U1 - Light ceiling for room, has ceiling plate with translucent channels that are at specific angle relative to plane of plate, and light source device arranged so that parallel lights are radiated to front side via channels - Google Patents

Abstract

The ceiling has a light source device (5) including a set of light sources, and attached to a rear side of a ceiling plate. The plate has a set of translucent channels (3) that run from the rear side to a front side of plate at an angle of 45 degrees to a plane of the plate. The device is arranged in such a way that parallel lights from the sources are directed via concave mirrors and radiated to the front side via the channels.

Description

I. What is

Known is that covered Rooms by various be illuminated point of light sources. Form exceptions translucent ceiling lights that illuminate the room over a large area. Both solutions have the disadvantage that no real shadow of the facility / persons be formed (as produced by the sun in the open air). In addition, the view of punctual light sources strains the retina and thus creates an undesirable veil on our eye.

II. Considerations

There the human being over Millions of years from the "natural" light source of the Sun conditioned, is an interior lighting, the similar Translated experiences from nature, more advantageous.

• 1. Decke als blauen Himmel gestalten.
• 2. Aus der Decke tritt paralleles Licht und leuchtet so den Raum aus.
• 3. Der Lichtwinkel sollte max. 45 Grad betragen, da so, nach Auskunft der Augenärzte, die Lichtquellen nicht unangenehm auf der Netzhaut zentriert wird/werden.
• 4. Es sollen konkrete Schatten gebildet werden (die Schattenzonen werden durch indirekte Lichtreflexionen genügend ausgeleuchtet).
• 5. Wünschenswert wäre, wie unter freiem Himmel, die Illusion einer weit entfernten „Sonne" (wirkt auch gegen Klaustrophobie).
• 6. Diese „Sonne" sollte, da sie ja nicht als einzelne Lichtquelle alles ausleuchtet, erträglich hell sein.
• 7. Wie unter freiem Himmel sollte die „Sonne" individuell mit dem Betrachter „wandern".

From this I derive the following conditions:

• 1. Design ceiling as blue sky.
• 2. From the ceiling occurs parallel light and so illuminates the room.
• 3. The angle of light should be max. 45 degrees, since then, according to the eye doctors, the light sources are not unpleasant centered on the retina / are.
• 4. Concrete shadows are to be formed (the shadow zones are sufficiently illuminated by indirect light reflections).
• 5. It would be desirable, as in the open air, to have the illusion of a distant "sun" (also effective against claustrophobia).
• 6. This "sun", since it does not illuminate everything as a single source of light, should be tolerably bright.
• 7. As in the open air, the "sun" should "walk" individually with the viewer.

III. The invention

• a. Das Raster, unter Umständen in der Winkelstellung beweglich, wird im Verhältnis Durchmesser zur Länge mindestens im Verhältnis 1:20 gefertigt. So sieht, bedingt durch den Paralaxeneffekt, der Mensch eine weit entfernte Lichtquelle (Sonne).
• b. Das parallele Licht wird mittels diverser kleiner Lichtquellen, die über entsprechend geformter Hohlspiegel gerichtet werden, erzeugt. Ohne diese Vorrichtung würde durch das Raster nur eine minimale Lichtausbeute erfolgen.
• c. Die gewünschte Luxzahl errechnet sich aus der Leistung der Lichtquelle im Verhältnis zum Hohlspiegeldurchmesser = Bodenfläche.

An obliquely arranged grid sends a parallel light (see drawing):

• a. The grid, possibly movable in the angular position, is made in the ratio of diameter to length at least in the ratio 1:20. Thus, due to the paralax effect, the human being sees a distant light source (sun).
• b. The parallel light is generated by means of various small light sources, which are directed via correspondingly shaped concave mirror. Without this device would be done by the grid only a minimal light output.
• c. The desired lux number is calculated from the power of the light source in relation to the concave mirror diameter = floor area.

These Arrangement allows the realization of all conditions listed under point II.

Claims (12)

Illuminated ceiling ( 1 ) with a ceiling light, which has a flat front and back, and a light source device ( 5 ) associated with the back of the ceiling panel, characterized in that the ceiling panel has a plurality ( 2 ) of translucent channels extending obliquely to the plane of the ceiling panel from the rear to the front, and the light source apparatus is arranged to transmit light through the channels (Fig. 3 ) radiates to the front. 1 Luminous ceiling according to claim 1, characterized in that the light source device radiates collimated light. 1 A light blanket according to claim 2, characterized in that the light source device comprises a plurality of individual light sources ( 7 ) which emit collimated light. 2 Illuminated ceiling according to claim 3, characterized in that each individual light source comprises a concave mirror ( 4 ), which directs the incident light in parallel. 2 Luminous ceiling according to claim 3 or 4, characterized in that the light sources evenly spaced on the back of the ceiling plate ( 6 ) are arranged. 2 Illuminated ceiling, according to one of the preceding claims, characterized in that the channels form an angle of at most 45 degrees with the flat surface of the front side of the ceiling panel. 3 Illuminated ceiling according to claim 6, characterized in that the angle is adjustable. 3 Illuminated ceiling according to one of the preceding claims, characterized characterized in that the channels a circular one or polygonal cross-section. Illuminated ceiling according to claim 8, characterized in that the diameter of the circular channels is at least 1 mm and at most 5 mm. 3 Luminous ceiling according to one of the preceding claims, characterized in that the thickness of the ceiling panel is between 10 mm and 100 mm. 3 Illuminated ceiling according to one of the preceding claims, characterized in that at at least the front of the ceiling panel is blue. Illuminated ceiling according to any preceding claim, characterized characterized in that the ceiling panel comprises connecting means, which connects to adjacent ceiling tile to form a large ceiling tile allow.