DE19624087A1 - LED illumination apparatus for colour system - Google Patents

Abstract

The apparatus includes several punctiform light sources and a holder. The sources are formed by LEDs, each radiating light in a preferred direction. The LEDs are held in a preset spatial arrangement by a holder, which secures that at least two LEDs radiate the light in different directions. An optical device changes the characteristic of the light radiated by the LEDs. It contains a light directioning device for the LED light, using preferably reflection for light directioning in a preset direction. The optical device may comprise a mixer for mixing the colour of the radiated light by diffuse transmission.

Description

The present invention relates to a lighting device and, in particular, to a lighting device Lighting device with a plurality of essentially point-shaped light source devices, each emitting light in a preferred direction.

Furthermore, the present invention relates to the use of the invention Lighting device, a method for operating the Be invention lighting device and a color light system with the lighting according to the invention device.

Although the following description is limited to light emitting diodes (LEDs), NEN any point light sources for building the lighting according to the invention tion device can be used, in particular other punctiform semiconductor light swell such as B. semiconductor laser or other semiconductor devices, the Lumineszenzef exhibit effects, such as the recently known arrangements amorphous silicon.

LEDs, which are also called luminescent diodes, are opto electronic semiconductor component used pn diodes, in which at the pn junction Electroluminescence occurs. In most cases this is visible Light or infrared light.

Fig. 18 shows three typical geometric forms A, B and C of light emitting diodes according to the prior art, which are usually prepared in epitaxy.

Form A in FIG. 18 is a layer arrangement of a p-GaAs layer 101 and an n-GaAs layer 102 , on the top and bottom of which contacts 103 are attached. The contact on the upper side has an opening in the central area which allows the light beam to emerge in the direction of the arrow.

Form B in FIG. 18 is a layer arrangement similar to form A, in which an n-GaAs sphere 102 is additionally provided on the light beam exit opening. This additional union GaAs sphere 102 serves to focus the light emitted in the direction of the arrow.

Form C in Fig. 18 is a layer arrangement similar to Form A, in which the contact has no opening on the top and accordingly the light beam emerges from the direction of the arrow since Lich.

The LED is biased during operation in the forward direction, so that the La manure carrier concentrations are greater than the equilibrium concentrations. The at The recombination energy released is absorbed in the form of light shine.

Light-emitting diodes come in different colors, in particular in infrared, red, Orange, yellow, green and blue.

It is also possible to change the color of the light emitted by a light-emitting diode by this light is used to excite a photoluminescent substance. So can you e.g. B. from infrared light emitted by GaAs light-emitting diodes into green light deln. The light-emitting diode is advantageously directly connected to the photoluminescent coating substance.

A special modification of the light emitting diode is the semiconductor laser, in the case of the recombina tion effects after prior occupation of the conduction band are stimulated.

LEDs are used, for example, as display components and as components in designated solid-state image converter. Semiconductor lasers can be found in laser displays and especially in laser printers. Known in all of these applications  Semiconductor light sources focus on their property as point light sources reason.

Fig. 19 shows the typical structure of a light emitting diode in a plastic housing as a point light source according to the prior art.

In Fig. 19, reference numeral 104 designates an anode connection, 105 a cathode connection, 106 a connecting wire, 107 a light-emitting diode chip with, for example, the shape A of Fig. 18, 108 a reflector trough and 109 a plastic housing.

In the past few years since about 1990, LED technology has progressed towards higher levels Luminaire efficiency (lumens / watt) made especially in the range of visible wavelengths.

Compared to conventional light sources, such as. B. incandescent with or without precious gas filling, so-called super bright LEDs achieve a significantly higher light efficiency enz. These super bright LEDs are available on the market especially in the colors red, Yellow, light green, green and blue. Developments of super bright LEDs are currently for blue to green light with GaN and intensely for yellow to red light with AllnGaP drove.

The beam power of a single LED is limited, however, and leave as an upper limit specify a few watts. In addition, LEDs only emit light in a relatively narrow Wavelength range, i.e. H. with an LED can only be approximately monochromatic Light with a relatively low beam power can be generated.

From DE-OS 23 15 709 a radiation-emitting plane semiconductor arrangement is included known high beam power. This known semiconductor arrangement has a housing socket base, at least on the surface side facing the semiconductor arrangement is insulating, and a radiation-permeable, covering the semiconductor device Plastic lens on. There is a greater number of radiation on the housing base Giving semiconductor devices arranged, either all in a row or are connected in parallel to each other.

EP-A-0 390 479 describes an LED cluster unit for a display device knows. This known LED cluster unit contains a matrix arrangement of LEDs  a circuit board with plug connections on the back. On the down A tubular shielding device is provided on the beam side of the LEDs in order to shield the LED clusters from laterally incident light so that the viewer can perceive a sharp image of the LED cluster. Furthermore, the shield Protect the LED cluster from dirt and damage.

The object of the present invention is to provide an improved lighting device create which generate light with higher beam power and / or broadband light can.

According to the invention, the above object is achieved by the subject matter of claim 1 solves.

Furthermore, the present invention provides the use of the Be according to the invention lighting device according to claim 45 to 48, 50 to 53 and 55 before.

In addition, the present invention provides a method for operating fiction moderate lighting device according to claim 56.

Furthermore, the present invention provides a color light system with the invention The lighting device of claim 57.

Preferred further developments are the subject of the respective subclaims.

The idea on which the present invention is based is to use a light with a height Herer beam power and / or broadband light generating lighting device tion from multiple point light sources to create that the punctiform light sources emit their light in at least two different directions, and this emitted light is efficiently directed and / or mixed in color. There can achieve much higher optical efficiencies (lumens / watt), even as a light efficiency referred to as the usual lighting devices mentioned above be achieved.

The high advantages of the lighting device according to the invention are particularly advantageous Service life, the high luminous efficiency, the low temperature increase compared to the  Environment, the color optimization, the modulability of the emitted light and the Ease of packaging.

In the following, embodiments of the present invention are referenced be described in more detail on the accompanying drawing.

The drawing shows:

Fig. 1 is a front view of a LED spotlight in accordance with a first preferred embodiment of the present invention;

Fig. 2 is a plan view of the LED floodlight approximate shape of the first preferred exporting the present invention;

3 is a front view of an exemplary LED holding structure for the first embodiment of the present invention be ferred.

Fig. 4 is a plan view of the exemplary LED holding structure for the first preferred embodiment of the present invention;

Fig. 5 to 7 exemplary arrangements of the LED radiator panels in the LED spotlight accelerator as the first preferred embodiment of the present invention;

Fig. 8 is a front view of an LED according to a second jet pipe Favor th embodiment of the present invention;

Fig. 9 is a plan view of the LED beam tube according to the second preferred embodiment of the present invention;

Fig. 10 to 13 exemplary arrangements of the LED lamps in the LED boards lance accelerator as the second preferred embodiment of the present OF INVENTION dung;

Fig. 14 is a front view of a LED spotlight in accordance with a third preferred embodiment of the present invention, wherein the LED is a radiant tube set in accordance with the second preferred embodiment in a reflector;

FIG. 15 is a diagram for surface estimation for the radiator circuit boards which he inventive lighting device using han mercial LED chips;

FIG. 16 is a color light-emitting element of a color lighting system according to a fourth embodiment of the present invention before ferred sectional enlargement with a Teilaus the plan view and cross-section;

FIG. 17 is an electrical block diagram of the color light system according to the fourth preferred embodiment of the present invention;

Fig. 18, three typical geometric forms A, B and C of light emitting diodes according to the prior art, which are usually produced in epitaxial process; and

Fig. 19 shows the typical structure of a light-emitting diode in a plastic housing as a point light source according to the prior art.

In the figures, the same reference symbols designate the same components, one of which repeated description is omitted.

Fig. 1 shows a front view of a LED spotlight in accordance with a first preferred embodiment of the present invention.

In Fig. 1, reference numeral 1 designates a radiator plate holder on which one or more radiator plates 2 with a plurality of LEDs 3 mounted thereon are held. This arrangement is located in a reflector 4 for homogeneous radiation mixing. The LEDs 3 are distributed in a three-dimensional arrangement on the radiator plate (s ) 2 such that the light emitted by them strikes the reflector 4 .

The reflector 4 directs the light of the LEDs 3 to its outlet opening, which advantageously has a translucent cover 5 .

The LEDs 3 can have the same or different wavelengths. With different wavelengths of the LEDs 3 , a corresponding design of the reflector 4 as a diffuser can additionally achieve a homogeneous color mixing of the light with different wavelengths, in order to obtain, for example, white light from the three basic colors red, green and blue. Any other color mixtures are also conceivable in accordance with the distribution of the different wavelengths.

The translucent cover 5 can advantageously contain a converging lens for bundling or a diverging lens for dispersing the light radiation and for adjusting the radiation angle.

The reflector 4 is in turn held in a reflector body 5 . At the foot of the reflector body 5 is preferably a controller board part 6 with outside of the reflector body 5 extending power supply contacts 7 in a potting compound 8 is embedded.

The overall shape of the LED beam tube according to the first preferred embodiment The form of the present invention is thus similar to that of a conventional halogen beam lers.

The current can be supplied via a current or voltage regulator, a rectifier with an AC connection, a transient protection circuit or a pulse control circuit. All such regulating or control circuits can either be integrated on the controller board part 6 or can be provided separately outside the LED spotlight.

If the LEDs 3 are supplied with current, the light they emit falls on the reflector 4 and is directed homogeneously at the outlet opening or additionally mixed and bundled in color so that the viewer of the light beam emitted by the LED spotlight is no longer recognizable that the light originally from single point-shaped semiconductor light sources, for. B. the LEDs 3 .

There are numerous possibilities for electrically controlling different sub-groups of the large number of LEDs 3 in such a way that different brightness, color or luminous frequency modulation effects can be achieved, which will be discussed in detail below.

The individual LEDs can also be mechanically moved in by a corresponding device their arrangement can be adjusted in order to obtain such modulation effects.

The LED spotlight with the three-dimensional LED arrangement according to the first before Preferred embodiment of the present invention emits light with a higher radiation stung and / or broadband light than the known devices with flat LED Arrangements, and the need for large radiation areas for high beam powers is thus eliminated.

Table 1 below shows an overview of materials which can be used for the individual components of the LED spotlight according to the first preferred embodiment of the present invention, which is illustrated in FIGS. 1 and 2.

Table 1: Materials for the components of the LED spotlight according to the first preferred embodiment of the present invention

Fig. 2 shows a plan view of the LED spotlight according to the first preferred embodiment of the present invention.

As can be seen from FIG. 2, the radiator plate holder 1 is preferably located on the longitudinal axis of the reflector 4 . The radiator plates 2 are preferably planar and carry a plurality of LEDs 3 on both walls facing the reflector 4 , so as to form the three-dimensional LED arrangement.

Fig. 3 shows a front view of an exemplary LED holding structure for the first embodiment of the present invention be ferred.

The mounted on the emitter plate 2 LEDs 3 are in turn on commercially available boards 10 , whereupon they are connected in series connection, parallel connection or a mixed circuit. The boards 10 are connected to the controller electronics and to the circuit board part.

Fig. 4 shows a top view of the exemplary LED-holding structure for the first preferred embodiment of the present invention.

As can be seen from FIG. 4, the emitter plate 2 preferably consists of a plat-shaped board holder 12 , on which boards 10 with the LEDs 3 are fastened on both sides by means of a suitable adhesive 13 . The plate-shaped plate holder 12 is in turn connected to the radiator plate holder 1 in a suitable manner, for example by means of plug-in slots provided in the radiator plate holder 1 .

The controller board part 6 can be attached just like the boards 10 to the plate-shaped board holder 12 .

Figs. 5 to 7 show exemplary configurations of the LED lamps in the LED spotlight plates 2 according to the first preferred embodiment of the present invention.

The arrangement according to FIG. 5 provides two radiator plates 2 , each with two plates, which are arranged at an angle of 180 ° to one another. If one takes into account that a punctiform light source such as an LED also has a finite beam angle, this simple arrangement already enables almost the entire inner surface of the reflector 4 to be illuminated. However, the beam output of the LED spotlight that can be achieved in this way is still relatively low.

The arrangement according to FIG. 6 provides three radiator plates 2 , each with two plates, which are arranged at an angle of 120 ° to one another. Such an arrangement offers a higher beam power, because here the inner surface of the reflector 4 is more illuminated.

An even stronger illumination is provided by the arrangement according to FIG. 7, which provides four radiator plates 2 , each with two plates, which are arranged at an angle of 90 ° to one another.

The illumination can be further increased by correspondingly reducing the angle between the individual radiator plates 2 , but care must be taken that interfering optical and thermal interactions between the individual LEDs can occur at ever smaller angles.

Fig. 8 shows a front view of an LED beam tube according to a second preferred embodiment of the present invention.

In Fig. 8, reference numeral 20 denotes a circuit board with a plurality of LEDs 3 mounted thereon. A plurality of circuit boards 20 with the LEDs 3 are provided in a three-dimensional arrangement which is surrounded by a cladding tube 24 in such a way that the light emitted by them strikes the cladding tube 24 . The cladding tube 24 allows the light of the LEDs 3 to pass through its translucent exit area to the outside.

The cladding tube 24 is advantageously cylindrical, and the outlet region runs all around on the cylinder jacket. In this arrangement, a reflector disk 25 is preferably provided axially above and below the plates 20 , which directs the light of the LEDs 3 to the exit region of the cladding tube 24 .

The LEDs 3 can have the same or different wavelengths. At different wavelengths of the LEDs 3 , a suitable color mixing of the light with different wavelengths can additionally be achieved by appropriate design of the cladding tube 24 as a diffuser, in order thus to obtain, for example, white light from the three basic colors red, green and blue. Any other color mixtures are also conceivable in accordance with the distribution of the different wavelengths.

At the upper end of the cladding tube 24 , a cladding tube cover is preferably provided, where the upper reflector disc 25 can simultaneously perform this function.

At the lower end of the cladding tube 24 , a base 26 is preferably attached, the z. B. is a screw or plug-in base. A controller board part 27 with current supply contacts 28 extending to the surface of the base 26 is preferably embedded in a casting compound in the base 26 .

The overall shape of the LED beam tube according to the second preferred embodiment form of the present invention is thus similar to that of a conventional light bulb.

The electrical control and mechanical adjustment of the LED beam pipe according to the second preferred embodiment of the present invention can be the same as in the first embodiment.

Fig. 9 shows a plan view of the LED beam tube according to the second preferred embodiment of the present invention.

As can be seen from Fig. 9, a Plati nenhalter 29 is provided on the back of the boards 20 with the LEDs 3 . In the example shown here, four boards 20 are most ent 24 extending board holder 29 mounted with the tread portion from the cladding tube 24 facing the LEDs 3 at an angle of 90 ° to one another long the longitudinal axis of the jacket tube.

Table 2 below shows an overview of materials which can be used for the individual components of the LED spotlight according to the second preferred embodiment of the present invention, which is illustrated in FIGS. 8 and 9.

Table 2: Materials for the components of the LED spotlight according to the second preferred embodiment of the present invention

Fig. 10 to 13 show exemplary configurations of the LED lamps in the LED boards jet pipe according to the second preferred embodiment of the present OF INVENTION dung.

The arrangement according to FIG. 10 provides two boards 20 which are attached to a flat board holder 29 at an angle of 180 ° with rear sides facing each other. If one takes into account that even a punctiform light source such as an LED has a finite beam angle, this simple arrangement already enables almost the entire inner surface of the cladding tube 24 to be illuminated. However, the beam output of the LED spotlight that can be achieved in this way is still relatively low.

The arrangement according to FIG. 11 provides three boards 20 , which are fastened at an angle of 120 ° with mutually facing rear sides on a triangular board holder 29 be. Such an arrangement offers a higher beam power because the inner surface of the cladding tube 24 is illuminated more intensely.

An even stronger illumination is provided by the arrangement according to FIG. 12, which provides four boards 20 which are attached to a square board holder 29 at an angle of 90 ° with rear sides facing one another.

An even stronger illumination is provided by the arrangement according to FIG. 13, which provides eight boards 20 , which are fastened to a cross-shaped board holder 29 in a star shape with rear sides facing each other.

Just like in the first embodiment, the illumination can be increased further by reducing the angle between the individual radiator plates 2 , but care must be taken that interfering optical and thermal interactions between the individual LEDs can occur at ever smaller angles.

Fig. 14 shows a front view of a LED spotlight in accordance with a third preferred embodiment of the present invention, wherein the LED-lance is inserted according Flektor the second preferred embodiment, shown in FIGS. 8 and 9 in a Re.

In Fig. 14, reference numeral 30 generally designates the LED beam pipe according to the second preferred embodiment shown in Figs. 8 and 9. The LED beam tube 50 , which in the example shown contains four square-shaped boards with LEDs, is inserted into a reflector 31 . For this purpose, the reflector 31 has a corresponding reflector body 32 at its base, into which the LED beam tube 30 is preferably screwed or inserted.

As in the first embodiment, the reflector 31 directs the light from the LED beam tube 30 to its outlet opening, which advantageously has a translucent cover 33 .

The translucent cover 33 can advantageously contain a converging lens for bundling or a diverging lens for dispersing the light radiation and for adjusting the beam angle.

The LED beam tube 30 is supplied with power via current supply contacts 34 on the underside of the reflector body 32 .

In the third embodiment according to FIG. 14, the beam can be realigned after the mixing of the color components on the cladding tube, which further improves the homogeneity of the beam.

The electrical control and mechanical adjustment of the LED beam pipe according to the third preferred embodiment of the present invention can be as well in the first and second embodiments.

FIG. 15 shows a representation for the area estimation for the radiator boards of the lighting device according to the invention using commercially available LED chips.

Using commercially available LED chips with dimensions greater than 0.5 mm × 0.5 mm can be a linear arrangement of three LED chips (No. 1-3) with associated on a surface of approx. 8.50 mm × 4.55 mm.

Two such side-by-side linear arrangements of 2 × 3 LED chips (No. 1- 3 and 4-6) require an area of approximately 8.50 mm × 7.55 mm, and three such ne linear array of 3 × 3 LED chips (No. 1-3, 4-6 and 7- 9) require an area of approximately 8.50 mm × 11.20 mm.

Depending on the available space, the heater boards can be widened as well be extended and the beam power increased. However, it does become an expansion Preference in the third dimension, if possible, in order not to lose com to have to accept

Table 3 below shows techniques for making radiator boards for different types of LEDs.  

Table 3: Techniques for the production of radiator boards for various types of LEDs

The outstanding advantages of the lighting device according to the invention compared Conventional filament lamps open up a wide range of future uses typesetting.

Possible uses include battery-powered lights, such as. B. Flashlights, studio spotlights (previously halogen spotlights), headlights or others Lights of motor vehicles and bicycles, UV and infrared lights.

Furthermore, uses as pulsed lights for blue light, yellow light etc. of emergency vehicles and for flash lamps in photo technology or stroboscopy bar.

The state of the art in LED production and especially the low price Large-scale production of red, yellow, green and blue LEDs Applications

• - for use in the automotive sector as brake and tail lights or turn signal lights;
• - for use in traffic as traffic lights or warning lights; and
• - For use in optical data storage technology and data transmission technology

appear as imminent.  

The integrated control circuit technology in conjunction with LEDs on chip ensures that Combination of LEDs and control electronics lead to maximum module miniaturization and set new standards in lighting system technology.

For example, the lighting device according to the invention is particularly suitable as part of a colored light system for dynamic colored light design in Clearing.

Fig. 16 shows a color light element of such a color lighting system according to a fourth preferred embodiment of the present invention with a Teilausschnittsver enlargement of the plan view and the cross-section.

In the example shown, the emitter board holder and the emitter boards are integrated in a ceramic block 40 with a square cross section, on the four side surfaces of which the LEDs 43 are attached and the conductor tracks 45 for the connections are applied.

On each side surface of the ceramic block 40 , a perforated plate 42 with preferably round holes is attached in such a way that a red-green-blue LED triple, which is denoted by R, G, B, is inserted in the lateral recesses thus formed. The depressions can be cast with a transparent plastic 47 to protect the LEDs and conductor tracks located therein.

The individual LED chips are electrically connected so that red, green and blue are to be controlled separately, either for each LED triple or at least for all LEDs corresponding in color. The red-green-blue LED spotlight constructed in this way therefore needs at least four electrical connections, namely one each for red, green, Blue and mass.

As in the first embodiment, the light of the controlled LEDs falls on a reflector 44 surrounding the ceramic block 40 with the LEDs, which reflector directs the light to its outlet opening, which is preferably provided with a translucent cover 45 .

The translucent cover 45 can advantageously contain a converging lens for bundling or a diverging lens for dispersing the light radiation and for adjusting the beam angle.

The ceramic block 40 protrudes into a base 46 provided below the reflector 44 , which can have several functions.

First, the base 46 holds the red-green-blue LED spotlight constructed in this way, and furthermore it advantageously contains the electronics of the colored light element, which will be explained in more detail below in connection with FIG. 17.

The partial section enlargement shows in a top view and in cross section the LED chip triples Nos. 1, 2 and 3 and their conductor tracks 45 in an enlarged representation. The decimal numbers in the partial section enlargement reflect typical orders of magnitude of the LED chips, the depressions and the thickness of the perforated plate in millimeters.

Fig. 17 shows an electrical block diagram for the color light system according to the fourth preferred embodiment of the present invention.

FIG. 17 shows the base 46 with its external signal lines, the electronics contained in it and the red-green-blue LED emitter mounted thereon. For the sake of simplicity, it is assumed here that all the LEDs corresponding in color are connected in series.

Externally, the base 46 is, for example, a direct current and an alternating current supply voltage line 50 and 51 , a bus line 52 for connection to a central processor unit, an infrared control line 53 from an attached infrared receiver for separate wireless switching of the programs of a color processor 56 and a sensor connection line 54 , for. B. for a microphone supplied.

Internally, the base 46 contains a voltage converter 55 for AC connection, the color processor 56 , an input-side analog / digital converter 57 for converting the signals which are transmitted via the sensor connecting line 54 , three digital / analog converters 61 , 62 , 63 with optionally three adjoining current drivers 64 , 65 , 66 for controlling the three LED series circuits in accordance with the three basic colors red, green and blue.

The core of the electronics located in the base 46 is the color processor 56 . It controls the R, G, B-LED spotlight using the signals it receives and its own programs.

As a basic control function, for example, a pulsed current operation takes place on the ver turned LEDs optimized duty cycle. This causes the optical effect degree of LEDs is improved compared to continuous current operation and protects them also from overload.

The basic control function can have different programmable functions be, for example

• - Switch individual LED colors on and off;
• - changing the pulse rate of one or more LED series circuits;
• - temporal brightness, color or frequency modulations.

The programs stored in the color processor can be switched on and off externally or even modified via the bus line 52 or the infrared control line 53 .

The sensor line 54 enables, for example, temporal brightness, color or frequency modulations as a function of signals picked up by the microphone (light organ principle).

Table 4 below lists some controllable functions of the invention R, G, B LED spotlights.  

Table 4: some controllable functions of the R, G, B LED spotlight according to the invention

Individual R, G, B LED spotlights can be used with different control options can be combined into a centrally controlled color light system. You can The individual R, G, B LED spotlights are assigned special functions in the system the. The controller can be operated externally both via the bus line and via a remote control take place.

Program instructions of the central processor are preferably received via the bus line the individual R, G, B-LED spotlights are transmitted, and with the remote control one Individual functions of certain color processors activated or deactivated.

Such a colored light system shows versatile uses, because every R, G, B LED spotlight is a complete functional unit.

For example, with the electronic, processor-controlled according to the invention colored light system without additional mechanical effort objects in rooms or Spaces in and of themselves in a wide variety of ways are illuminated or illuminated.

Applications can be found in particular in

• - Showrooms for art objects, e.g. B. picture galleries or museums;
• - Showrooms for technical or commercial items, e.g. B. Mes sen;
• - Technically used rooms, e.g. B. Photo laboratories; and
• - in studios and living rooms for individual colored light design.

The color light system according to the invention makes complex color films used hitherto Controls, which in the usual color light systems, the colored light from white light win, completely superfluous and thus contributes significantly to the rationalization of such systems.

Claims (61)

1. Lighting device with:

• a) a plurality of essentially point-shaped light source devices, each of which emits light in a preferred direction;
• b) a holding device in order to hold these point-shaped light source devices in an essentially predetermined spatial association with one another, where this spatial association is chosen such that at least two of these point-shaped light source devices emit their light in different directions; and
• c) an optical device which changes the characteristic of the light emitted by these punctiform light source devices.

2. Lighting device according to claim 1, characterized in that the optical device contains a directional device, which from the point light source devices directed light directed in a predetermined direction. 3. Lighting device according to claim 2, characterized in that the Straightening device that is emitted by the punctiform light source devices Directs light by reflection in the predetermined direction.   4. Lighting device according to claim 1, 2 or 3, characterized in that the optical device contains a mixing device that the of the punctiform light emitted light mixes colors. 5. Lighting device according to claim 4, characterized in that the Mixing device that is emitted by the punctiform light source devices Mixes light through diffuse transmission. 6. Lighting device according to claim 4 or 5, characterized in that the mixing device emits from the punctiform light source devices mixes light through diffuse reflection. 7. Lighting device according to one of the preceding claims, characterized is characterized by a bundling device for bundling the optical device changed light. 8. Lighting device according to one of the preceding claims, characterized characterized by a diverting device for diffusing the optical Furnishing changed light. 9. Lighting device according to one of the preceding claims, characterized characterized in that a plurality of the punctiform light source devices their light shines in the same direction. 10. Lighting device according to claim 9, characterized in that a respective plurality of point-shaped light source devices that emit their light in the same radiates direction, is mounted on a flat plate. 11. Lighting device according to claim 10, characterized in that a A plurality of flat plates with a respective plurality of punctiform light sources leneinrichtung is provided. 12. Lighting device according to claim 11, characterized in that a Group of two flat plates is provided, so back to back on one  Carriers are arranged that the point-shaped light source devices mounted thereon emit light in two opposite directions. 13. Lighting device according to claim 12, characterized in that meh Rere groups of two flat plates offset in relation to each other at an angle are provided, the two plates of a group each back to back a carrier are arranged that the point light sources attached thereon len devices emit their light in two opposite directions. 14. Lighting device according to claim 13, characterized in that two Groups are provided that are angularly offset from one another by 180 °. 15. Lighting device according to claim 13, characterized in that three Groups are provided which are angularly offset from one another by 120 °. 16. Lighting device according to claim 13, characterized in that four Groups are provided which are angularly offset from one another by 90 °. 17. Lighting device according to claim 13, characterized in that n Groups are provided which are angularly offset from one another by 360 ° / n, where n is a natural number greater than four. 18. Lighting device according to claim 11, characterized in that three flat plates are provided, which are arranged on a triangular support, that the point-shaped light source devices mounted thereon convert their light into a radiate from three directions angularly offset by 120 °. 19. Lighting device according to claim 11, characterized in that four flat plates are provided, which are arranged on a square support, that the point-shaped light source devices mounted thereon convert their light into a radiate from four directions offset by 90 °. 20. Lighting device according to claim 11, characterized in that eight flat plates are provided, which are arranged on a star-shaped support,  that the point-shaped light source devices mounted thereon convert their light into a radiate from eight corresponding directions. 21. Lighting device according to one of the preceding claims, characterized characterized in that the optical device includes a reflector device that the light emitted by the punctiform light source devices is reflected. 22. Lighting device according to claim 21, characterized in that the Reflector device that radiated from the point light source devices Light diffusely reflected. 23. Lighting device according to claim 21 or 22, characterized in that that the reflector device is curved and the punctiform light source device are arranged within the concave region of the curvature. 24. Lighting device according to one of claims 21 to 23, characterized records that the bundling or dispersing device one in the Ab beam opening of the reflector device attached lens device. 25. Lighting device according to one of claims 21 to 24, characterized records that the reflector device is housed in a reflector holder. 26. Lighting device according to one of the preceding claims, characterized characterized in that control and / or control electronics is provided. 27. Lighting device according to claim 26, characterized in that the Regulation and / or control electronics is housed in the reflector holder. 28. Lighting device according to claim 26 or 27, characterized in that that the control and / or control electronics is on a circuit board with a Potting compound is shed. 29. Lighting device according to claim 28, characterized in that the Circuit board via power supply extending outwards through the reflector holder contacts can be connected to a power source.   30. Lighting device according to one of the preceding claims, characterized characterized in that the optical device ent a translucent envelope device holds that surrounds the point light source devices. 31. Lighting device according to claim 30, characterized in that the translucent envelope device from the point light source devices emits diffused light. 32. Lighting device according to claim 30 or 31, characterized in that that the translucent sheath is tubular. 33. Lighting device according to claim 32, characterized in that in the Cladding tube device axially above and / or axially below the point light source leneinrichtung a reflector device is provided. 34. Lighting device according to claim 32 or 33, characterized in that a cladding tube cover is provided on one side of the casing device. 35. Lighting device according to one of claims 32 to 34, characterized records that on one side of the sleeve device a connector base device is featured see is. 36. Lighting device according to claim 35, characterized in that the Control and / or control electronics is housed in the connection base device. 37. Lighting device according to claim 35 or 36, characterized in that the connection base device contains a screw base. 38. Lighting device according to claim 35 or 36, characterized in that the connection base device contains a plug-in base. 39. Lighting device according to one of claims 30 to 38, characterized records that the sheath with the surrounding point light source leneinrichtung in a curved reflector device within the concave loading realm of curvature is appropriate.   40. Lighting device according to claim 39, characterized in that the Bundling device or diverting device at the radiation opening of the curved reflector device attached lens device. 41. Lighting device according to one of the preceding claims, characterized characterized in that the point light source devices are semiconductor light sources are. 42. Lighting device according to claim 41, characterized in that the Semiconductor light sources include light emitting diodes. 43. Lighting device according to claim 41 or 42, characterized in that the semiconductor light sources include semiconductor lasers. 44. Lighting device according to one of the preceding claims, characterized draws by an assignment changing device for changing the predetermined spatial assignment of the point light source devices. 45. Use of a lighting device according to one of claims 1 to 44 in a battery powered light. 46. Use of a lighting device according to one of claims 1 to 44 in a studio spotlight. 47. Use of a lighting device according to one of claims 1 to 44 in a motor vehicle. 48. Use of a lighting device according to one of claims 1 to 44 on a bike. 49. Use according to claim 47 or 48 as a headlight, as a taillight, as a flashing light light, as instrument light or as operational light. 50. Use of a lighting device according to one of claims 1 to 44 in a UV or infrared light.   51. Use of a lighting device according to one of claims 1 to 44 in a strobe light. 52. Use of a lighting device according to one of claims 1 to 44 in a stroboscopic light. 53. Use of a lighting device according to one of claims 1 to 44 in a traffic light. 54. Use according to claim 53 as a traffic light or as a warning light. 55. Use of a lighting device according to one of claims 1 to 44 in data storage technology or data transmission technology. 56. Method for operating a lighting device according to one of claims 1 to 44 with at least one of the steps:

• i) selective electrical control of predetermined punctiform light source devices to achieve brightness modulation;
• ii) selective electrical driving of predetermined punctiform light source devices to achieve color modulation;
• iii) selective electrical control of predetermined punctiform light source devices to achieve luminous frequency modulation.

57. Color light system with at least one lighting device according to one of claims 1 to 44 and control electronics for performing at least one of the functions:

• i) selective electrical control of predetermined punctiform light source devices to achieve brightness modulation;
• ii) selective electrical driving of predetermined punctiform light source devices to achieve color modulation;
• iii) selective electrical control of predetermined punctiform light source devices to achieve luminous frequency modulation.

58. Color light system according to claim 57, characterized in that each individual Lighting device has its own control electronics integrated therein. 59. Color light system according to claim 58, characterized in that the respective Control electronics contains a color processor. 60. color light system according to claim 59, characterized in that the color pro cessors are connected to a central processor via a bus line. 61. Color light system according to claim 59 or 60, characterized in that the Color processors can be controlled wirelessly.