DE10107842A1 - Building lamp for illuminating building surfaces including housing and at least one light source connected to voltage supply also light conducting elements arranged in light path of light source esp. at least 1 lens element, etc. - Google Patents

Abstract

The building lamp is designed so that inside the housing (11), a multiple of micro-mirrors (20) and/or LCD-elements is arranged as light conducting elements (18). Which are controllable for the attaining of different light distributions (L), individually independent of each other. The micro mirrors (20) and/or the LCD elements are arranged on at least one building block.

Description

The invention first relates to a building lamp according to the Preamble of claim 1.

Such a building light is known and widely used and serves to illuminate, i.e. illuminate building surfaces, in particular especially in a room of a building. It can be in the building deleuchte are indoor or outdoor lights.

Especially with complex and representative buildings Individual lighting of the building is becoming increasingly important rooms laid. This requires an individual adjustment of the respective Building light on the individual building, sometimes also on individual ones  Rooms of the building, with the development of the building light with the planning and construction of the building often goes hand in hand, so that the Building luminaire with regard to the lighting conditions it produces, ins especially with regard to the light distributions generated by her can be tested in the building in which they are installed should, but virtually regardless of the real building, d. H. on one Computer is done.

The invention is based on the object of a building lamp to further develop in accordance with the preamble of claim 1, that this enables a variable light distribution and in principle in As part of a method for simulating light distributions advantageous can be used.

The invention solves this problem with the features of claim ches 1, especially those of the label part, and is accordingly characterized in that within the housing as Lichtleitele ment a variety of micromirrors and / or LCD elements is arranged, which are independent to achieve different light distributions can be individually controlled individually.

The invention thus provides, for example, as essential Light guiding element inside the luminaire housing as a DMD (digital mirror device) designated block to be provided by each controllable mirrors, in particular pivotable on a substrate are arranged, a fully variable light control by the Light source emitted light allows. That from the light source emitted light strikes the individual, in their relative spatial Slightly changeable micromirror and is caused by these the light exit opening in the housing through to one to be illuminated Thrown building area.  

The individual micromirrors are in their control signals spatial position changeable so that by transmission of Control signals change the light distribution of the building light is cash. The light distribution is particularly simple changeable.

However, the invention also provides for an essential light-guiding element arrange a variety of LCD elements. The LCD elements or LCD segments can be combined into cells. highlight Here, as with the micromirrors, the electronic controllability of the individual cells.

A major difference between using micro mirror and LCD elements as light guide elements in a fiction According building light is that it is in the microspie apply to a reflected light projection and one for the LCD elements Transmitted light projection. While the micromirrors in their spatial Chen position can be changed to different light distributions enable, causes for the LCD (Liquid Crystal Display) elements a change in the control voltage a change in the light transmission fluid.

An arrangement is also used as a micromirror in the sense of the invention designation of many small stripe-like elements referred to in the frame the GLV (grating light valve) technology are known. This is about it is a microscope that can be controlled individually and combined into pixels small band structures that either reflect or reflect the light bow. The individual stripe-like structures are particularly on arranged on the surface of a silicon chip and span one air-filled empty room. The individual pixels or the individual bands can be controlled electronically. Additional optical systems are used for directed delivery of light to the ribbon-like structures, as well  if necessary for further light conduction from the tapes sent light.

More information regarding GLV technology can be found at for example from the website of Silicon Light Machines the one that developed the GLV technology. Their Internet address is lukewarm tet www.siliconlight.com.

The fundamental difference between the GLV technology and the DMD and the LCD technology is essentially that in the GLV technology enables pixel-by-pixel generation becomes.

The building lamp according to the invention enables a time, cost and material-saving use in the context of a process for Simulation of lighting conditions. This will be discussed in detail later addressed.

In particular, the configuration according to the invention enables the Building light now also a reflectorless building light, because for example, the light source can be chosen such that the light emitted directly from the light source, ie without an additional one Reflection on a reflector on the micromirrors and / or the LCD Can meet elements and from there directly through the housing outlet Throw through the appropriate building surfaces can.

In addition, the building lamp according to the invention enables also the generation of essentially separate and mutually independent light spots. This was without provision elaborately designed light guide elements or several light sources in the State of the art not easily possible.  

The use of a variety of micromirrors and / or LCD Elements as light-guiding elements also have the advantage that the position of a building light according to the invention on commercial available components can be used. For example use projectors referred to as so-called projectors Devices with a variety of micromirrors and / or LCD elements. However, these so-called projectors are used to project running or Still images on building surfaces and not the illumination of Building surfaces.

The known projectors are fiction, as a building light moderately usable. In this respect, commercially available components be used.

Information about a module that can be used according to the invention with a variety of micromirrors are, for example, from a single set by Larry J. Hornbeck "Digital Light Processing ™ for High-Bright ness, High-Resolution Applications ", which is available online at Address http: / /www.vxm.com/TIDLP.html, is accessible.

A non-generic lighting device for vehicles, which already uses DMD micromirrors, is from DE 197 37 653 A1 known. However, this is not a building lamp.

The building light according to the invention can also be permanently in a building used to illuminate a building area the. The building light according to the invention offers, for example the possibility of readjusting the light distribution after installation in the building to be illuminated. In this way the Lichtver division of the building light in the assembled state to the light building to be adapted. So an unsatisfactory one In this way, light distribution of an installed building luminaire  Needs can be changed without disassembling the building light must be done.

According to an advantageous embodiment of the invention Micromirror and / or the LCD elements on at least one component arranged. This offers the advantage that the micromirrors or the LCD Elements already combined into building blocks, commercially available are. In addition to the production of the invention, this simplifies Building lights, for example, their electronic control, because of known interfaces and protocols for control can be used. Others related to the Control electronics essential components can thus from the State of the art. Finally, this offers design the advantage of reduced manufacturing costs of the invention outdoor building light.

According to a further advantageous embodiment of the invention inside the housing a storage element for storing Control signals for the individual micromirrors or LCD elements arranged. This configuration offers the advantage that control data or control information is now decentralized in the building deleuchter itself and can be accessed easily can. For example, different lights can be used in this way scenes or sequences of light distributions are generated, with about a control line connected to the building light only very small Amounts of information to be transferred.

According to an advantageous embodiment of the invention Building light using a signal line with an external signal connected.

This configuration has the advantage that the Ansiungssi Signals for the micromirrors or the LCD elements from an external  Signal transmitters can be transmitted, for example a data carrier that contains this control information can read. On This way, it becomes basically possible from a computer calculated virtual light distribution data on a data carrier save that can be read by the external signal generator.

According to a further advantageous embodiment of the invention the building light on a building wall, especially on one Ceiling of the building arranged. This offers the advantage that the place of use the building light according to the invention for simulation purposes actual place of use of a to be attached to a real building Building light corresponds. In this way, in a process for Simulation of lighting conditions not only the light distribution but also the location of the building luminaire can also be simulated.

According to a further advantageous embodiment of the invention the building lamp with at least one other building lamp connected to a system of building lights. This has the advantage to be able to simulate a light distribution that is a system of real Has building lights.

It can be particularly advantageous if several buildings Illuminate a system of building lights with a common men are connected. As a signal generator, for example a computer into consideration. But it can also be any other pre directions are used, the information, namely electrical Control signals for the micromirrors or for the LCD elements, can be transmitted to the building lights via a signal line.

The invention further relates to a method for simulating Lighting conditions of building lights on building surfaces, in particular in a building room, according to the preamble of the claim 10th  

It is a process for the simulation that cannot be documented in printed form of lighting conditions of building lights on building surfaces is known in which a lighting optic is provided in that a new building luminaire using conventional CAD systems is wound and constructed. This new building to be developed luminaire is a conventional building luminaire that comes with one conventional light source, conventional light guiding elements, such as Reflekto ren etc. works. After developing such a conventional one Building luminaire is usually produced in series and at the one location permanently installed.

The lighting optics of the conventional building luminaire include in particular the spatial arrangement of the individual, in one Luminaire housing elements arranged to each other to create a light to be able to calculate distribution data set. The term lighting optics in general, all components of the conventional Take the building light into account, which contributes to the light distribution of the Building luminaire at the place of use, i.e. can contribute to the operation.

With the help of suitable software, due to the arrangement of Light source and light guide elements to each other, as well as taking into account the geometry of the elements, for example different Forms of curvature of reflectors, light control or influencing of light through lenses, mirrors, etc., can be calculated as one of such a conventional building light generated light distribution actually looks in a room of certain dimensions. The light Distribution records are largely created automatically.

In order to create a building in which the conventional che, to be developed building light to be installed later, the Light distribution of the newly developed building lamp in the room too can simulate on a computer using the calculated light distribution data set  in a virtual, on the screen of a Com computer representable space, the light distribution of the newly developed Building light can be shown. In this way, for example an architect assigns a spatial che idea of the light distribution of the lamp and in particular the effect of the light distribution.

The object of the invention is the known method to simulate lighting conditions according to the generic term of Claim 10 to improve.

The invention solves this problem with the features of claims 10, in particular with those of the identification part and is accordingly characterized by the steps

• a) Arranging a building light with a variety of micro mirror and / or LCD elements, in particular arranging one Building light according to one of claims 1 to 9, on a real Building area, especially in a real room, and
• b) driving the micromirrors and / or the LCD elements of the Building luminaire using the light distribution data set Generation of a real light distribution.

The principle of the invention is therefore essentially one Building lights that have a variety of micromirrors and / or LCD Contains elements to arrange on a real building surface and through electronic control of the micromirrors and / or LCD Elements to simulate a light distribution.

In this way it is now possible with simple means in in a real room a building light with micromirrors and / or Arrange LCD elements, or if necessary also - on a trial basis -  to assemble. Now you can add to the existing ones Light distribution data record can be used, if necessary according to a predetermined algorithm still in control signals for the individual micromirrors or LCD elements are converted can. The light that can previously only be displayed virtually on the computer Distribution can now easily enter a real room be brought up so that, for example, an architect can make an impression on the actual lighting effect of the light distribution of the building light in a real room.

The real room in which the building lamp is arranged, a Test room, can be any room, preferably the Room is modeled in which a conventional building light should actually be installed later.

Especially due to the fact that the best existing light distribution data set, which is anyway within the scope of the develop luminaire is created, can be used without special measures to be provided for the individual case are necessary the development of luminaires is significantly simplified.

According to an advantageous embodiment of the method, the step is provided as follows:

• a) Transformation of the light distribution data set into control tion signals for the individual micromirrors or LCD elements of the Lamp.

This configuration enables an effortless because, in particular automatable calculation of the electronic control signals for the micromirrors or LCD elements based on the existing one light distribution data set. The transformation can be done by special software can be done easily.  

Especially in a process for developing a Luminaire that, in addition to the process for simulating lighting ver still has the step of designing a luminaire the inventive design of the method for simulating Lighting conditions of luminaires on a building surface, in particular significant advantages in a building room. For example, in As part of a simulation of a light distribution of a newly developed Building lights are found to be the light actually reached distribution does not meet the requirements. In this respect, early in Be influenced within the framework of a luminaire development and the development of the lamp can be intervened in such a way that the desired light distribution is actually achieved.

Further advantages result from the subclaims not cited Chen and based on the following description of one in the Figu Ren illustrated embodiment. In it show:

Fig. 1 shows schematically a building lamp according to the invention,

Fig. 2 shows a building lamp according to Fig. 1, the bottom side is placed in a real space,

Figure 3 shows schematically a building lamp according to Fig. 1, the ceiling side in a real space is arranged and concentrated to Wallwashing is suspended.,

Fig. 4 shows a system of three ten attached to the ceiling Gebäudeleuch,

Fig. 5 shows three different positions of the sun corresponding Stripes fenmuster as a light distribution curves,

Fig. 6, two light distribution patterns in accordance with an undistorted and distorted window frame,

Represent Fig. 7, two light distributions, the accumulations of foliage leaves at different positions of the sun,

Fig. 8 is a light distribution ren three square, undistorted Kontu maps,

Figure 9 illustrates. A light distribution, which distorts the squares in FIG. 8,

Fig. 10 shows a light distribution of three undistorted circular images, and

Fig. 11 is a light distribution of FIG. 10 in a distorted state.

The building lamp according to the invention is designated in its entirety by 10 in the figures. It comprises a housing 11 which has a light exit opening 12 . A voltage supply with a voltage source, not shown, is ensured via electrical lines 13 . Data is transmitted from a central signal transmitter to the building light 10 via an electrical line 14 .

A light source 15 is arranged within the housing 11 . This can be, for example, a high-pressure metal halide lamp with a small burner. For example, a lamp with a power of approximately 150 W, which is commercially available under the designation CDM-SA / T or CDM-SA / R from Philipps Lighting BV, Eindhoven, NL.

From the light source, the light, which is indicated by arrows 16 , is directed to a lens element 17 . From there the light runs to a light guide arrangement 18 . In the exemplary embodiment according to FIG. 1, the light guide arrangement 18 is a module 19 on which a multiplicity of micromirrors 20 are arranged. As indicated schematically in FIG. 1, their spatial position is adjustable, in particular pivotable, relative to a flat substrate 21 .

The light emerges from the housing 11 through the light exit opening 12 , the light beams being deflected differently due to the different spatial position of the individual micromirrors 20 . This is shown schematically by the divergent light arrows that emerge on the light exit opening 12 of FIG. 1, who the.

Fig. 1 shows no special reflector elements etc. Of course, these can, of course, be provided to direct all of the light emitted by the light source 15 onto the light guide arrangement 18 .

As is not apparent from FIG. 1, the data line 14 is connected to the module 19 in order to control the micromirrors 20 . By electronic control, the individual micromirrors 20 can be adjusted independently of one another in terms of their spatial position, so that overall there is a light distribution curve L on a building surface F.

Instead of the micromirror 20 shown in FIG. 1, it goes without saying that LCD elements can also be used, which can also be electronically controlled individually. The light transmission is changed by the control, so that any light distribution L on a building surface F can be reached.

Fig. 2 shows a bottom-side arrangement of a building lamp 10 in a real space R. From building lamp 10 of the micro-mirrors or LCD elements is generated a light distribution curve L on a building surface F, for example a wall of the room R by appropriate control. In the exemplary embodiment according to FIG. 2, two light distribution curves L separated from one another are shown in the manner of essentially elliptical surfaces. From this it is already clear that with an inventive building lamp 10 several independent light spots with a single building lamp 10 that includes only a single light source 15 can be generated.

In the embodiment according to FIG. 2 23 have patch 22, the two light, a relatively sharp contour K. Of course, by controlling the micromirrors or LCD elements, it is equally possible to form soft contours.

The illustrated bottom-side arrangement of the building lamp 10 is only to be understood as an example. The building lamp 10 is advantageously mounted on the ceiling, so that the location of a real building lamp in a real room can also be simulated.

Fig. 3 shows such a cover-side attachment of a buil deleuchte 10 at a ceiling 24. The housing 11 of the building lamp 10 is shown here slightly inclined to the ceiling 24 , which is not necessary in principle due to the deflectability of the micromirrors.

In the exemplary embodiment according to FIG. 3, the building lamp 10 serves as a wall washer, which illuminates the wall 25 . Of course, floor or ceiling washlights can also be realized with the building light 10 according to the invention. The building light 10 can also be used for outdoor lighting.

Fig. 4 shows a system 26 of three building lights 10 a, 10 b, 10 c which are all arranged, for example, along a straight line on the ceiling 24 of a building. Each building light 10 a, 10 b, 10 c can represent its own light distribution curve L, which is to be indicated by the three light cones 27 a, 27 b, 27 c.

The three building lights 10 a, 10 b, 10 c are connected to a common signal generator, not shown. The signal transmitter can be, for example, a computer which contains the control data record and can transmit this to the individual building lights 10 a, 10 b, 10 c via a common or several separate data lines. In this way, several building lights 10 a, 10 b, 10 c can generate a light distribution curve L together by central control.

FIGS. 5 through 11 show typical examples of light distributions as, ie, for a building according to the invention light fixture 10 to a building surface. B. can be generated on a floor or wall surface.

Fig. 5 shows schematically three different patterns 28 , 29 , 30 of stripes that can be achieved at different positions of the sun. It can be, for example, a stripe pattern 28 , which is generated by window lamellae or other building-fixed devices when the sun shines through a window into a building room. While the sun is moving approximately along the arrow 31 (indicated schematically), the shadow patterns falling into the building space change, so that the stripe patterns 29 and 30 arise one after the other.

A building light 10 according to the invention can be used in this way to simulate different positions of the sun at different times of the day. Daylight can be adjusted.

Likewise, Fig. 6 shows the light distribution of a window cross 32 , or its shadow cast on a building surface F. The window cross 33 is shown distorted, corresponding to a light distribution curve, which corresponds to a changed position of the sun. Here, too, a daylight tracking of a light distribution curve as a window cross can be achieved in a particularly simple manner with a building lamp 10 according to the invention.

Fig. 7 shows two clusters 34, 35 of foliage leaves 36th It is already clear here that with a single building according to the invention, 10 individual leaves 36 separated from one another by sharp contours can be represented, so that a realistic image of a light distribution curve of leaves located on a glass roof can be generated, which is shone through by sunlight. In this way, for example, beer garden atmospheres can be created artificially.

Fig. 7 shows two different light distribution curves 34, 35 corresponding to different positions of the sun.

Figs. 8 to 11 show different, each consisting of three light spots light distributions. FIGS. 8 and 10 show this case undistorted simple geometric figures, namely, squares or circles. FIGS. 9 and 11 show perspectively distorted Lichtverteilun gene. The distorted light distribution curves occur, for example, when simple geometric figures are mapped as according wall side FIG. 8 and FIG. 10 in the image plane of a ceiling side fixed building lamp.

Such distortion effects may be desirable. But it can the situation also occurs that just such distortion effects should be avoided.

The building luminaire 10 according to the invention enables such light distributions to be imaged, with distortions, as exaggeratedly clearly shown in FIGS. 9 and 11, sometimes only being perceived when light conditions are simulated in a real room. In the event that these distortion effects are to be avoided, there is thus still the possibility of influencing the development process of the building, during the development of a luminaire, so that the undesired distortion effects can be eliminated.

In this way one can simulate lighting ratio learn to develop a building luminaire.

All distortions or distortion effects can be represented with the building lamp 10 according to the invention. This offers the advantage in particular that the building light can be arranged at any location, which means that different distortion effects can be investigated in each case. The change in a place of use for the building lamp 10 can be taken into account in a simple manner by software by changing the calculation of a light distribution data set.

So-called gobos, which are also thrown on building surfaces F, are in principle also considered as light distributions or light distribution curves L. Here, too, the building lamp 10 according to the invention enables a simple simulation of lighting conditions of such a gobo on a building surface.

Claims (11)

Building light ( 10 ) for illuminating building surfaces (F, 24 , 25 ), comprising a housing ( 11 ), at least one light source ( 15 ) connected to a voltage supply, light guide elements arranged in the light path of the light source, in particular at least one lens element ( 17 ), a light exit opening ( 12 ) in the housing ( 11 ) and optionally additional functional elements such as fans or the like., characterized in that within the housing ( 11 ) as a light guide element ( 18 ) a plurality of micromirrors ( 20 ) and / or LCD -Ele elements is arranged, which can be controlled independently of one another to achieve different light distributions (L). 2. Building lamp according to claim 1, characterized in that the micromirrors ( 20 ) and / or the LCD elements are arranged on a least one building block ( 19 ). 3. Building light according to claim 1 or 2, characterized in that a memory element for storing control signals for the individual micromirrors ( 20 ) or LCD elements is arranged within the housing ( 11 ). 4. Building light according to one of claims 1 to 3, characterized in that the module ( 19 ) is connected to the voltage supply of the light source ( 15 ). 5. Building lamp according to one of claims 1 to 4, characterized in that the building lamp ( 10 ) by means of a signal line ( 14 ) is connected to an external signal transmitter. 6. Building lamp according to one of the preceding claims, characterized in that it is arranged on a building wall, in particular on a building ceiling ( 24 ). 7. Building lamp according to claim 6, characterized in that it is fixedly arranged on the building wall ( 24 , 25 ). 8. building light ( 10 a) according to one of claims 1 to 7, characterized in that it with at least one other building deleuchte ( 10 b, 10 c) to a system ( 26 ) of building lights ( 10 a, 10 b, 10 c ) connected is. 9. Building lamp ( 10 a) according to claim 8, characterized in that it generates a common light distribution curve (L) with at least one other building lamp ( 10 b, 10 c). 10. A method for simulating lighting conditions of building lights ( 10 ) on building surfaces (F), in particular in a building room (R), comprising the steps

• a) providing a luminaire optics of a building luminaire ( 10 ), the luminaire optics in particular comprising the spatial arrangement of the light source ( 15 ) and light guide elements ( 17 ) to one another,
• b) creating a light distribution data set based on the provided luminaire optics, which represents the spatial light distribution of the building lamp ( 10 ) arranged on a building surface (F), in particular in a room (R),

characterized by the steps

• a) arranging a building light ( 10 ) with a large number of micromirrors and / or LCD elements, in particular arranging a building light ( 10 ) according to one of claims 1 to 9, on a real building surface (F), in particular in a real room ( R), and
• b) control of the micromirrors ( 20 ) and / or the LCD elements of the building lamp ( 10 ) using the light distribution data set to generate a real light distribution.

11. The method of claim 10, comprising the step

• a) transformation of the light distribution data set into control signals for the individual micromirrors ( 20 ) or LCD elements of the building light ( 10 ).