DE3720101A1 - Illuminating assembly - Google Patents

Abstract

The illuminating assembly has a device with at least one laser as light source, and also at least one radiator (emitter, light source) and at least one optical waveguide which feeds the light of the light source to the radiator. The radiator consists of a castable material and has at least one embedded optical waveguide section which at least in the light output region of the optical waveguide section is translucent for the wavelength region of the light of the laser, and is coupled to the optical waveguide in the light input region of the optical waveguide section. The light input region of the optical waveguide section is integrated in one coupling part of the radiator and the light output region of the optical waveguide is integrated in a second coupling part, the coupling, which is formed by the two coupling parts, having a converging lens which images the light of the optical waveguide onto the light input region of the optical waveguide section. The radiator can have a stop (diaphragm) for emitting a pictograph (pictogram) or information. The radiator can, for example, be integrated in the showerhead of a shower or hand shower or can be designed as a shower head.

Description

The invention relates to a lighting device with a Device having a light source with at least one Spotlights and at least one optical fiber that holds the light feeds the light source to the spotlight.

Lighting devices of this type are known (DE-OS 21 14 962). The device with the light source forms the light of the Light source via a converging lens to several from Lichtwellenlei tern existing light guide bundles, the light into one Spotlight (light head) lead directly in front of a small one object to be illuminated, for example a piece of jewelry is arranged. The radiated power of these radiators is low, so that they can be used in living areas, offices and businesses instead of the usual lighting (light bulbs, neon lights, etc.) not possible.

Another major disadvantage is that the Solid angle at which the light is emitted, for practical Purposes, for example as indoor lighting for rooms, too small is, so that for this reason already known spotlights only for illuminating or illuminating small objects, such as Example of the above jewelry can be used can.  

It is also known (DE-AS 22 33 257), made of optical fibers separate existing bundles in their light-emitting area to fan out, so that a small number at times Spotlight lights up. Their radiated intensity is however so weak that they are only used as show pieces in apartments can be used.

The invention has for its object the aforementioned Training lighting device so that they generally instead the usual lighting devices that light with incandescent lamps, Dispense neon tubes, etc., can be used.

This object is achieved in that the Light source is at least one laser, the emitter from at least a castable material, at least one embedded has th optical fiber shaft section, at least in the light tread area of the optical waveguide section for the waves length range of light from the light source is translucent and in the light entry area of the optical waveguide section the optical fiber (s) is coupled.

The use of lasers according to the invention ensures that a high light output in the or optical waveguide and Optical fiber sections can be coupled. In principle, it is enough already one laser, but several lasers are used, then the transmitted power is increased considerably.

Several lasers are used, which are in different spectra tral areas, so by mixing different Share the daily profile of natural light be so that for people in artificial light in  shielded rooms must work, the lighting corresponds according to the changing light conditions during a Daily routine can be controlled.

By embedding the optical waveguide section or Optical fiber sections in a castable plastic achieved that the geometric arrangement can be determined, esp in particular the solid angle at which the spotlight emits the light len should.

For example, the radiation can be set so that it stripes along a wall.

This is for example for escape routes in buildings, such as Example hotels, cinemas and the like compared to the usual Pictograms and emergency lights are of considerable advantage.

The particular advantage of the measures according to the invention is in that, for example, the entire previous electrical Installation in buildings using fiber optic cables and the invent The inventive spotlight can be replaced by the main Connection in a building with an inventive device connected to the laser or lasers, from which then Lichtwel lenleiter to the invention, installed in the rooms Lead spotlights.

A particular advantage is that the invention Device for illuminating or illuminating rooms with explosive atmosphere, such as storage tanks, trash store, from wet rooms and in the underwater area, such as Example of underwater lighting for swimming pools etc. can be used.  

In principle, the or the optical waveguide sections in a clear plastic, such as acrylic, be poured in. However, it is sufficient that the translucent Material only for the light exit area of the light waveguide Sub-sections is used, and the rest of the radiator for example made of colored polyurethane with colored pigments consists.

In a further embodiment of the invention, the light is off tread area of the optical waveguide section or Lichtwel Len conductor sections spaced from the outer contour of the radiator in the Material, i.e. in the translucent section of the spotlight embedded.

These measures ensure that the lights out tread surface of the optical waveguide section or the light waves Fan sections emerging rays so that the light at a larger solid angle from the invention Spotlight occurs in comparison to a spotlight in which the Optical waveguide section or the optical waveguide sections flow into the outer contour with their light-emitting surfaces. According to the invention, the arrangement of the optical fibers can cuts and their distance from the contour of the spotlight so tight be placed in such a way that the emitter has a homogeneously radiating surface having.

In a still further embodiment of the invention, the Light entry area of the optical waveguide section in a Coupling part of the spotlight integrated, the light exit area of the optical fiber in a second coupling part is integrated and formed from both coupling parts  Coupling has a converging lens that the light of the Lichtwel lenleiters on the light entry area of the optical waveguide sectional images.

The coupling can be detachable, the two Coupling parts in the manner of a bayonet lock with each other be locked.

The two coupling parts can also be made after the Coupling form a structural unit and glued or be welded. Through the converging lens in the separating surface che the coupling intensity losses largely avoided.

According to a preferred embodiment, the collection is made lens from two plano-convexes separated in their central plane Lenses, each with a plano-convex lens in a coupling part is integrated.

Through these measures, in the case of the releasable clutch achieved that the coupling parts are always flat with minimal Losses of intensity come to mutual investment.

This is particularly advantageous if the spotlights are interchangeable should be, i.e., the couplings are detachable.

In yet another embodiment of the invention, each are three optical fiber sections for the spectral ranges blue, green and red combined into a bundle.

This measure ensures that, depending on the application Spotlight emits white light, or only blue, green or only red or a mixed color of two of these colors  or a mixture of these three colors with different Intensity shares, depending on the controlled intensity of the laser in the individual spectral ranges.

In yet another embodiment of the invention, the Emitter multiple fiber optic sections or multiple bundles of optical fiber sections, the device with the light source or the optical waveguide or the radiator Devices for hiding optical fibers or light has waveguide sections.

Depending on the geometry of the hidden optical fibers section or the optical fiber sections are pictograms, such as directional arrows in white, green or red emitted.

In yet another embodiment of the invention, the Spotlight an aperture for radiating a pictogram or Information on.

In principle, the spotlight can have a geometrical shape a light bulb, a fluorescent lamp, etc., because it is out a castable material that takes on any geometric shape can exist.

According to a preferred embodiment, the radiators and his coupling part as a unit to a tile or tile shed. The other coupling part is then, for example, in a ceiling or wall.  

According to a further preferred exemplary embodiment, the Spotlights the stem of a drinking vessel, the foot of the drinking vessel that forms a coupling part and the footprint (table, Counter) the other coupling part.

According to a further embodiment of the invention, the Devices according to the invention as markings for or in Swimming pools and still as visual signaling devices in streets traffic lights used for road users.

In a still further embodiment of the invention Spotlights in the shower heads of showers or hand showers integrated or designed as shower heads, so that a shower de person is to a certain extent enveloped by a light curtain.

The measures according to the invention achieve that in general also in wet rooms, such as in shower cubicles through the Device according to the invention lighting without complex Protective insulation is created.

For the purposes of the invention, integrated is understood to mean that a The inventive radiator is dimensioned so that it without can be installed in a shower head without the released inflow of water is essentially affected.

Training as a shower head in the sense of the invention is too understand that the radiator has additional holes through the water released after the inflow like a shower can leak.  

In a still further embodiment of the invention, the device according to the invention instead of the usual underwater lighting fountains, fountains and the like for Use, so that here too the usual electrical Protective devices are omitted.

The invention is in the drawing based on exemplary embodiments len explained.

Show it:

Fig. 1 shows a schematic representation of an embodiment of the device according to the invention,

Fig. 2-4 per an embodiment of a radiator,

Fig. 5 shows the cover for the radiator of Fig. 4,

Fig. 6 is a tile designed as a radiator,

Fig. 7 is a road traffic light with spotlights,

Fig. 8 is a swimming pool with spotlights as labels,

Fig. 9 shows a tank with radiators as interior lighting,

Fig. 10 a building with spotlights as interior lighting,

Fig. 11 is a drinking vessel with integrated in the stem Lichtwel lenleiterabschnitten,

Fig. 12 a spotlight integrated in a shower head and

Fig. 13 is a formed as a shower head radiator.

Fig. 1 shows a schematic representation of an embodiment example of the device according to the invention. It has a known laser 2 arranged in a housing 1 . Through one side surface 3 of the housing, the optical fibers 5 bundled into a strand 4 are guided, which are fanned out in the housing and with their light-entry surfaces, that is to say end faces 6 in the direction of the laser. A collecting lens 7 is arranged between the laser and the end faces 6 and, according to the rules of geometric optics, images the light emitted by the laser onto the end faces 6 .

The strand 4 of the optical fibers leads to the radiator 8 .

Embodiments of the radiator are shown in FIGS. 2 to 4.

The radiator denoted by 9 in FIG. 2 has a base designed as a coupling part 10 , in the flat end face 11 of which the plano-convex lens 12 is cast with its flat surface. Spaced from the plano-convex lens in the direction of the radiator body 13, the one end portions of the optical waveguide 14 are arranged with their one end faces as light entry surfaces 15 . The light exit surfaces 15 'of the optical waveguide sections, which are formed by their other end faces, end within the radiator body in front of its outer contour 16 , so that the individual beams fan out to light cone 17 within the lamp body.

The lamp body consists of a castable material, whereby for the part 18 adjacent to the base, for example polyurethane and for part 19 in the area of the light exit of the light wave lenleiterabschnitte transparent acrylic glass is used. According to the invention, the radiator, including the plano-convex lens, is cast as a one-piece component, the geometric arrangement of the optical waveguide sections being previously determined in the casting mold used for this.

A second plano-convex lens, designated 20 , is cast in the second coupling part 21 , into which the end sections of the optical waveguides forming a bundle are additionally cast with their light exit area. The two plano-convex lenses 12 and 20 form a converging lens 22 which images the light emerging from the optical waveguides onto the light entry region of the optical waveguide sections.

FIGS. 3 and 4 respectively showing a second and fourth Ausführungsbei play of the radiator. The same parts are designated with the same reference numerals.

The two coupling parts from FIG. 2 are cast into a non-releasable coupling 24 , the converging lens 25 being cast in at the same time, which replaces the converging lens 22 from FIG. 2. Furthermore, the light exit areas of the light waveguide sections are in the outer contour 26 of the lamp body 27 , which consists of only one translucent material, for example plexiglass.

The radiator in FIG. 4 differs from the radiator in FIG. 3 in that the radiator body 28 has an extension 29 with a slot 30 into which a diaphragm 31 can be inserted.

The aperture 31 is drawn in plan view in FIG. 5. It delimits a directional arrow 32 , in the place of which the word "stop" or a pictogram, etc. can occur.

Fig. 6 shows in perspective a radiator 33 configured as a tile. It consists of a cuboid, of at least in its surface 34 transparent pourable plastic, in which the light exit surfaces of the light waveguide sections 35 open, which are arranged to form an "H". Instead, any other letter or simply a square or some other surface can be formed by the light exit surfaces of the optical waveguide sections. The coupling with the bundle of optical fibers is designed analogously to FIG. 2 or 3.

Fig. 7 shows a perspective view of a street traffic light 36 with spotlights 37 , 38 and 39 for the different colors. They are designed in accordance with the emitters in FIGS. 2 to 4 and coupled accordingly to optical fibers.

The Fig. 8 also shows a perspective view of a swimming pool 40 with radiators 41 as labels. The structure and the connection to the optical waveguide is in accordance with FIGS. 2 to 4.

This also applies to the tank 42 shown in FIG. 9 with the emitters 43 as interior lighting, which are connected to a collecting line 44 with optical fibers.

This also applies to the building 45 shown in section and schematically in FIG. 10. From the main connection 46 leads on the one hand an electrical line 47 to the consumers 48 (boiler) and 49 (refrigerator, electric cooker), and a line 50 to the device 51 with a laser 52 , from the light wave conductor as a collector 53 and go to the individual Storeys and the connections for the radiators 54 . The arrangement and structure of the radiators and the device correspond to the details of FIGS. 1 to 4.

Fig. 11 shows a drinking vessel 55 , the style 56 light waveguide sections 57 and the foot 58 has a plano-convex lens 59 , via which and a further plano-convex lens 60 light is coupled in a counter or table 61 , as is also shown in FIG is. 1 to 4 explained above.

FIG. 12 shows an emitter 63 integrated in a shower head 62 , which corresponds in structure to the emitter of FIG. 3. The same parts are labeled with the same reference numerals. The radiator 63 is arranged with the formation of an annular gap 64 in the housing 65 of the shower head and is connected to the water supply line 67 . With 66 in the housing, the holes for the water outlet are designated.

Fig. 13 shows a trained as a shower head 68 Strah ler, which is designed in principle like the radiator in Fig. 3 and additionally has holes 69 through which water can flow in via the water supply line 70 . The water supply line opens into a collecting space 71 , which forms a unit with the radiator body 72 . With FIG. 3, like parts are designated by like reference numerals.

Claims (13)

1. Lighting device with a device having a light source with at least one emitter and at least one optical waveguide that feeds the light from the light source to the emitter, characterized in that the light source is at least one laser ( 2 ), the emitter ( 8 ) consists of at least one castable material, has at least one embedded optical waveguide section ( 14 ), at least in the light exit area of the optical waveguide section is translucent for the wavelength range of the light from the light source ( 2 ) and in the light entry area of the optical waveguide section is coupled with the optical waveguide (s) pelt is. 2. Lighting device according to claim 1, characterized in that the light exit region of the optical waveguide section is adorned to the outer contour ( 16 ) of the spotlight in the material. 3. Lighting device according to claim 1 or 2, characterized in that the light entry area of the optical waveguide section is integrated into a coupling part ( 10 ) of the radiator, the light exit area of the optical waveguide is integrated into a second coupling part ( 21 ) and the coupling formed from two coupling parts ( 10 , 21 ) has a converging lens ( 12 , 20 ; 22 , 25 ) which images the light from the optical waveguide onto the light entry region of the optical waveguide section. 4. Lighting device according to claim 3, characterized in that the converging lens consists of two plank-convex lenses ( 10 and 21 ) separated in its central plane and that in each case a plank-convex lens is integrated into a coupling part. 5. Lighting device according to one of claims 1 to 4, characterized in that three optical fiber sections each for the spectral ranges blue, green and red are combined into a bundle. 6. Lighting device according to one of claims 1 to 5, characterized in that the radiator has several fiber optic sections or several Has bundles of optical fiber sections, the device with the light source or the optical waveguide or the radiator Devices for hiding optical fibers or Optical fiber sections has.   7. Lighting device according to one of claims 1 to 6, characterized in that the radiator has a diaphragm ( 30 ) for emitting a pictogram or information. 8. Lighting device according to one of claims 1 to 7, characterized in that the spotlight and its coupling part are cast as a structural unit to form a tile ( 33 ) or tile. 9. Lighting device according to one of claims 1 to 6, characterized in that the spotlight is the stem ( 56 ) of a drinking vessel ( 55 ) and the foot ( 57 ) of the drinking vessel forms a coupling part and that the footprint (table, counter) that other coupling part has. 10. Lighting device according to one of claims 1 to 6, characterized in that the spotlight integrated in the shower head ( 62 , 68 ) of a shower or Handdu cal or is designed as a shower head. 11. Use of the devices according to one of claims 1 to 8 as markings ( 41 ) for or in swimming pools ( 40 ). 12. Use of the devices according to one of claims 1 to 8 as an optical signal transmitter ( 37 , 38 , 39 ) in traffic lights ( 36 ) for road users. 13. Use of the devices according to one of claims 1 to 8 as underwater lighting for fountains or fountains.