EP2604403A1 - Light conduction body and light-permeable compound body - Google Patents

Abstract

The body (10) has a planar base board (11) provided with an upper side (O) and a lower side (U), and a light guidance pin (15) arranged vertical to the base board. The base board comprises pins on the upper side and/or the lower side. The light guidance pin is connected with the pins in a form-fit and force-fit manner. The base board comprises photoconductive material e.g. polymethyl methacrylate or glasses, in a region of the pins. The light guidance pin comprises a cylindrical bolt (17) at an end opposite to the base board. Independent claims are also included for the following: (1) a method for manufacturing an optical waveguide body (2) a light-permeable composite body (3) a method for manufacturing a light-permeable composite body.

Description

Field of the invention

The invention relates to a light-conducting body, in particular for a translucent composite body, as well as a translucent composite body.

Background of the invention and prior art

Light-conducting components or translucent composite bodies are known from the prior art. For example, from the DE 10 2007 013 199 A1 a translucent component of a multilayer composite component known, which can be used for facades and other structures, especially in outdoor areas. The multi-layer composite component has predominantly a concrete-bonded material structure with light-conducting bodies, which are arranged in the manufacture of the component in a predominantly parallel arrangement to each other in the interior of the component and form the component at least partially translucent. The multi-layer composite component has several layers of concrete and insulating material, which are penetrated by a light guide, wherein the light guide must be stored in such a way during the manufacture of the multi-layer composite component in a mold to prevent slippage during the casting process ,

The disadvantage here, however, is that always several layers are required with recordings for the light guide, so that the entire multi-layer composite component in its production is relatively labor-intensive and costly.

From the DE 93 10 500 U1 a translucent component has become known, are cast in the optical fiber cable in a structural element made of concrete or concrete and at least one other material. The optical fiber cables usually consist of several optical fiber bundles, which are surrounded by a light-impermeable, insulating sheath. Such optical fiber cables are relatively limp and therefore are not suitable to be introduced or poured into a component without further precautions. For example, during a pouring process, parts of the optical fiber cables may be bent or even sheared off. Furthermore, an additional strength for this concrete element is not guaranteed by the pliable optical fiber cable.

In the light-transmissive components known from the prior art, it is also disadvantageous that a relatively strong incidence of light is necessary for a sufficient illumination of the building interior.

Object of the invention

The invention is therefore based on the object to provide a light-conducting body and a translucent composite body, which allow a much simpler, more cost-effective production of a light-conducting body or a translucent composite body and which allow improved illumination of the building interior.

Inventive solution

This object is achieved by a light guide, in particular for a translucent composite body and a translucent composite body according to the independent claims. Advantageous embodiments and further developments of the invention are specified in the respective dependent claims.

Accordingly, there is provided a light guide body, comprising a substantially flat base plate having a top and a bottom and at least one Lichtleitstift, wherein the at least one Lichtleitstift is arranged substantially perpendicular to the base plate, said at the at least one Lichtleitstift at the end remote from the base plate a Lens is arranged.

In particular, the lens arranged on the light-conducting pin ensures that obliquely incident light is also conducted to the inside of the composite body, so that more light is conducted into the interior of a building.

The base plate may have on the top and / or bottom of a number of pins, wherein the at least one light guide pin is connected substantially positively and / or non-positively with a pin.

Because the light guide pins can be plugged positively and / or non-positively on the pins of the base plate, a light guide can be produced, which can be adapted to specific needs by about individual Lichtleitstifte can be omitted.

The light guide pin and the pins can have a light-conducting material, in particular polymethylmethacrylate (PMMA) or glass, the base plate having a light-conducting material at least in the region of the pins.

The lens may comprise a photoconductive material, in particular polymethyl methacrylate (PMMA) or glass. The light guide pin and the lens disposed thereon may be integrally formed, i. Light guide pin and lens form a unit.

For the light guide pins and the pins as well as for the lenses, it is possible to use any light-transmitting or light-conducting material which is suitable for the production of the light guide pins, cones or lenses.

The lens may have a photochromic coating or an electrochromic coating. Thus, the amount of light of the guided into the interior of the building light can be regulated.

The lenses may be convex, concave, plano-convex or plano-concave, although other shapes may be used. For example, the lenses may have a pyramidal, cylindrical or any other light-bundling, light-diffusing or light-focusing form.

The lenses can be attached to the ends of the light guide pins, such as by means of an adhesive connection, a plug connection or another Klipssystem. The adhesive bond preferably comprises a translucent adhesive.

On the axial projections or bolts cover plates of a composite body can be plugged.

The light guide pins can be extended with a Lichtleitstiftverlängerung, wherein the Lichtleitstiftverlängerung is connected at one end to the Lichtleitstift. The connection can be made, for example, with a plug connection, wherein the light guide pin extension has a blind hole corresponding to the axial projection of the light guide pin. The connection can also be effected by means of an adhesive connection, wherein the adhesive connection preferably comprises a translucent adhesive. Furthermore, the connector can also be reinforced with a translucent adhesive.

At the other end of the Lichtleitstiftverlängerung a lens may be arranged, or the other end of the Lichtleitstiftverlängerung may be formed as a lens. The lenses can be attached to the Lichtleitstiftverlängerungen about by means of an adhesive connection, a connector or other Klipssystem be attached. Again, the adhesive compound preferably comprises a translucent adhesive.

The Lichtleitstifte may have on the base plate facing the end of a pin corresponding to the blind hole, in which the pin is positively and / or non-positively arranged.

Preferably, the Lichtleitstifte at the top and the Lichtleitstifte at the bottom are aligned.

The pin and / or the axial projection may have a circumferential groove for receiving a sealing element and / or a retaining ring.

In each case a photovoltaic cell can be arranged on the light guide pins, so that the light incident into the light guide pins can also be used to generate energy. The photovoltaic cell can comprise a thin-film cell which can be vapor-deposited onto the surface of the light-conducting pin. In conjunction with the lens, the efficiency of energy production can be increased because more light can reach the photovoltaic cell.

Additionally or alternatively, photovoltaic cells can also be arranged on the Lichtleitstiftverlängerungen. Because the production of the Lichtleitstiftverlängerungen takes place independently of the base plate or of the light guide pins, the production of Lichtleitstiftverlängerungen with applied photovoltaic cells can be made particularly simple and efficient.

Also provided is a method for producing a light-conducting body, wherein the light-guiding body comprises a substantially flat base plate, which has a number of pins on the upper side and / or lower side, and at least one light guide pin, which has a blind hole at one end, wherein the at least one Lichtleitstift with its blind hole on a Spigot of the base plate is inserted, so that between the pin and the Lichtleitstift a substantially positive and / or non-positive connection can be produced, and wherein the Lichtleitstift on the base plate remote from the end lens.

Before attaching the Lichtleitstiftes on the pin a sealing element or a locking ring can be arranged in a provided for receiving a sealing element or a locking ring groove on the pin.

Further, prior to attaching the Lichtleitstiftes on the pin on the surface of the pin and / or on the surface of the blind hole, an adhesive, preferably a light-transmitting adhesive, are applied.

• der Lichtleitkörper eine im Wesentlichen flächig ausgestaltete Basisplatte mit einer Oberseite und einer Unterseite umfasst, wobei an der Oberseite und/oder an der Unterseite eine Anzahl von Lichtleitstiften im Wesentlichen senkrecht zur Basisplatte angeordnet sind, und
• wobei an der Oberseite und/oder an der Unterseite der Basisplatte eine aushärtbare Vergussmasse aufgebracht ist, sodass die Lichtleitstifte zumindest teilweise von der Vergussmasse umgeben sind.

Furthermore, a translucent composite body is provided which comprises a first light guide body, wherein

• the light guide body comprises a substantially flat configured base plate having a top and a bottom, wherein at the top and / or on the bottom a number of light guide pins are arranged substantially perpendicular to the base plate, and
• wherein on the upper side and / or on the underside of the base plate, a curable potting compound is applied, so that the Lichtleitstifte are at least partially surrounded by the potting compound.

• die Abdeckplatte eine Anzahl von mit den Lichtleitstiften, mit an den Lichtleitstiften angeordneten Linsen und/oder mit an den Lichtleitstiften vorgesehenen axialen Überständen korrespondierende Durchbrüche bzw. Aussparungen aufweist, und
• die Abdeckplatte an den der Basisplatte abgewandten Enden der Lichtleitstifte aufgesetzt ist, sodass die axialen Überstände und/oder die Linsen jeweils im Wesentlichen formschlüssig und / oder kraftschlüssig mit dem korrespondierenden Durchbruch verbunden sind und / oder die der Basisplatte abgewandten Enden der Lichtleitstifte formbündig an der Abdeckplatte aufliegen.

The translucent composite body may further comprise at least one cover plate, wherein

• the cover plate has a number of with the light guide pins, with arranged on the light guide pins lenses and / or with provided on the light guide pins axial projections corresponding openings or recesses, and
• the cover plate is placed on the ends of the light guide pins facing away from the base plate, so that the axial projections and / or the lenses in each case Essentially positively and / or non-positively connected to the corresponding aperture and / or the base plate remote from the ends of the light guide pins rest flush with the cover plate.

The base plate may have on the upper side a number of pins, the Lichtleitstifte at the end facing the base plate having a blind hole, each receiving a pin, and wherein the pins are connected substantially positive and / or non-positively connected to the blind hole of the respective Lichtleitstiftes ,

The underside of the base plate may be configured substantially symmetrically to the upper side of the base plate, wherein on the underside a number of light guide pins are provided, which are arranged substantially like the light guide pins on the upper side corresponding to the underside.

The cover plates can be detachably mounted on the Lichtleitstifte.

On the base plate facing sides of the cover plates, a seal may be applied at least in the region of the openings.

At least some of the light guide pins can be arranged in the region of the axial projection a sealing element and / or a retaining ring.

At the base plate facing sides of the cover plates can be arranged at least one mounting pin, which protrude into the region between the cover plate and the base plate.

The fastening pin may have barb elements and / or bores.

The cavity formed by the cover plates or by a cover plate and the base plate may be at least partially filled with a filling material, preferably an insulating material, concrete or a gas filled. If the mounting pins protrude into the insulation and / or in the concrete a particularly stable attachment of the cover plates is achieved. Other fillers may also be used.

The cavity formed by the cover plates or by a cover plate and the base plate can also form a vacuum.

The light guide pins and the pins may comprise a photoconductive material, preferably polymethyl methacrylate (PMMA) or glass. The base plate may have a light-conducting material at least in the region of the pins.

The lens may have a photochromic coating or an electrochromic coating.

In each case a photovoltaic cell can be arranged on the light guide pins.

A heating / cooling device can be arranged in the cavity formed by the cover plates or in the cavity formed by a cover plate and the base plate. The heating / cooling device may be about a fluid-tight tube.

On the cover plates, a heat-insulating layer may be arranged.

Further, the composite body may comprise a second light guide, wherein the second light guide is arranged relative to the first Lichtleitkörper such that the base plate of the first Lichtleitkörpers is substantially parallel to the base plate of the second Lichtleitkörpers and arranged on the underside of the first Lichtleitkörpers Lichtleitstifte with the on Upper side of the second Lichtleitkörpers arranged Lichtleitstifte are aligned.

The arranged on the underside of the first Lichtleitkörpers Lichtleitstifte may be connected to the arranged at the top of the second Lichtleitkörpers Lichtleitstiften.

For connection, a spacer may be provided, which has a photoconductive material, preferably polymethylmethacrylate (PMMA) or glass.

The cavity between the base plate of the first optical fiber and the base plate of the second optical fiber can be filled with a filler material, preferably an insulating material or substantially form a vacuum.

On the spacer can be arranged a photovoltaic cell.

In the light guide body and / or in the composite body, the base plate may have a number of holes, which preferably completely penetrate the base plate.

In the light guide body and / or in the composite body, the sealing element may comprise an O-ring. The retaining ring may comprise a snap ring.

In the case of the light-conducting body and / or in the composite body, the sealing element and / or the securing ring may have a material that is essentially translucent. This largely prevents the sealing element and / or the retaining ring from impairing the aesthetic impression of the light-conducting body and / or of the composite body.

In the case of the light-conducting body and / or in the composite body, the light-guiding pins can be cylindrical or conical.

In the case of the light guide body and / or in the composite body, the axial projection may have a conical tip.

In the light guide body and / or in the composite body, the openings of the cover plates may each have a bevel corresponding to the conical dome.

• an der Oberseite und / oder Unterseite einer im Wesentlichen flächig ausgestalteten Basisplatte eine Anzahl von Lichtleitstifte im Wesentlichen senkrecht zur Basisplatte angeordnet werden, wobei zumindest einige der Lichtleitstifte an dem der Basisplatte abgewandten Ende einen axialen Überstand aufweisen, welcher vorzugsweise als zylinderförmiger Bolzen ausgestaltet ist, und wobei an dem axialen Überstand eine Linse angeordnet ist, und
• eine Abdeckplatte, welche eine Anzahl von mit den axialen Überständen korrespondierenden Durchbrüchen aufweist, an den der Basisplatte abgewandten Enden der Lichtleitstifte aufgesetzt wird, sodass die axialen Überstände jeweils im Wesentlichen formschlüssig und / oder kraftschlüssig mit dem korrespondierenden Durchbruch verbunden sind.

Furthermore, the invention provides a method for producing a translucent composite body, in particular a composite body according to the invention, wherein

• a number of light guide pins are arranged substantially perpendicular to the base plate at the top and / or bottom of a substantially planar designed base plate, wherein at least some of the light guide pins on the end remote from the base plate have an axial projection, which is preferably designed as a cylindrical bolt, and wherein a lens is disposed on the axial projection, and
• a cover plate which has a number of openings corresponding to the axial projections, is placed on the base plate remote from the ends of the Lichtleitstifte, so that the axial projections are each connected in a form-fitting and / or non-positively connected to the corresponding opening.

On the top and / or bottom of the base plate, a number of pins may be provided, wherein the Lichtleitstifte at the end facing the base plate having a blind hole, each receiving a pin, and wherein the pins substantially positive and / or non-positive with the blind hole be connected to the respective Lichtleitstiftes.

At the light guide pins, a photovoltaic cell can be arranged, preferably a thin-film cell.

Before placing the cover plate, seals may be applied on the side of the cover plate facing the base plate, at least in the region of the openings. In one embodiment of the invention, the seal can be applied over a surface area over substantially the entire surface.

At the axial projections, a sealing element and / or a retaining ring can be arranged.

After placing the cover plates, the cavity formed by the cover plates or by a cover plate and the base plate can be filled with a filling material, preferably an insulating material and / or concrete. Other suitable filling materials may be provided.

• Herstellen eines Basiskörpers aus zwei erfindungsgemäßen Lichtleitkörpern, wobei die beiden Lichtleitkörper derart relativ zueinander angeordnet werden, dass die Basisplatte des ersten Lichtleitkörpers im Wesentlichen parallel zur Basisplatte des zweiten Lichtleitkörpers ist und die an der Unterseite des ersten Lichtleitkörpers angeordneten Lichtleitstifte mit den an der Oberseite des zweiten Lichtleitkörpers angeordneten Lichtleitstifte fluchten,
• Herstellen eines Sandwichkörpers, indem der Hohlraum zwischen der Basisplatte des ersten Lichtleitkörpers und der Basisplatte des zweiten Lichtleitkörpers mit einem Füllmaterial, vorzugsweise ein Dämmmaterial, ausgegossen wird,
• Anordnen des Sandwichkörpers in einer Gussform, und
• Ausfüllen der Gussform mit einer aushärtbaren Gussmasse, vorzugsweise Beton.

Finally, the invention provides a method for producing a translucent composite body, the method comprising at least the following steps:

• Producing a base body from two light-guiding bodies according to the invention, wherein the two light-guiding bodies are arranged relative to one another such that the base plate of the first light-guiding body is substantially parallel to the base plate of the second light-conducting body and the light-guiding pins arranged on the underside of the first light-guiding body coincide with those on the upper side of the second Lichtleitkörpers arranged light guide pins are aligned,
• Producing a sandwich body by pouring the cavity between the base plate of the first light guide body and the base plate of the second light guide body with a filling material, preferably an insulating material,
• Arranging the sandwich body in a mold, and
• Filling the mold with a hardenable casting compound, preferably concrete.

Because firstly the sandwich body is produced with an insulating layer formed between the base plates, which is then arranged in the mold, a light-conducting multi-layer composite body can be produced in a particularly simple manner, which has two stable outer sides (of the hardenable casting compound) with an insulating layer arranged therebetween having.

At least one side wall of the casting mold can have openings or recesses into which the light guide pins at least partially engage, and / or wherein the ends of the light guide pins facing away from the base plate lie flush against the side walls.

Prior to placing the sandwich body in the mold, the mold may be partially filled with the curable molding compound and the sandwich body then inserted into the molding compound.

The mold, which may be open at the bottom (i.e., has only side walls), may be placed on a substrate, with the sandwich body being placed in the mold such that connecting bars projecting from the substrate protrude into the space to be filled with the hardenable molding compound.

In the production of the sandwich body, in each case a spacer can be arranged between the light guide pins arranged on the underside of the first light guide body and the light guide pins arranged on the upper side of the second light guide body, wherein the spacer is designed to be light-conducting or translucent. Thereby, the depth or width of the translucent composite body can be adjusted.

Brief description of the figures

Fig. 1a

einen erfindungsgemäßen lichtdurchlässigen Verbundkörper in einer Vorderansicht, welcher eine Anzahl von Aussparungen aufweist, durch welche Licht durch den Verbundkörper hindurchgeleitet werden kann;

Fig. 1b

den in Fig. 1a gezeigten lichtdurchlässigen Verbundkörper mit einer alternativen Anordnung der Aussparungen;

Fig. 2

ein erstes Ausführungsbeispiel eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers in einer Schnittansicht;

Fig. 3

ein zweites Ausführungsbeispiel eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers in einer Schnittansicht;

Fig. 3a

eine alternative Ausgestaltung des in Fig. 3 gezeigten Ausführungsbeispiels;

Fig. 4

ein weiteres Ausführungsbeispiel eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers in einer Schnittansicht;

Fig. 4a

eine alternative Ausgestaltung des in Fig. 4 gezeigten Ausführungsbeispiels;

Fig. 5

ein noch weiteres Beispiel eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers in einer Schnittansicht;

Fig. 6

ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers in einer Schnittansicht;

Fig. 7

eine Detailansicht A1 nach Fig. 6;

Fig. 8a, 8b

erfindungsgemäße Ausgestaltungen eines Lichtleitstiftes des erfindungsgemäßen Lichtleitkörpers;

Fig. 9

eine erfindungsgemäße Ausgestaltung eines Bolzen an einem erfindungsgemäßen Lichtleitstift sowie eine entsprechende Ausgestaltung einer Aussparung einer Abdeckplatte;

Fig. 10

eine erfindungsgemäße Ausgestaltung einer Abdeckplatte eines lichtdurchlässigen Verbundkörpers;

Fig. 11a, 11b

zwei alternative Ausgestaltungen eines erfindungsgemäßen Lichtleitstiftes des Lichtleitkörpers;

Fig. 12

eine Ausgestaltung eines Zapfens der Basisplatte bzw. eines Bolzens eines Lichtleitstiftes mit einem daran angeordneten Dichtungselement;

Fig. 13

eine perspektivische Ansicht eines erfindungsgemäßen lichtdurchlässigen Verbundkörpers mit einem Lichtleitkörper und zwei daran angeordneten Abdeckplatten, welche jeweils auf den Bolzen der Lichtleitstifte aufgesteckt sind;

Fig. 14

ein erfindungsgemäßen lichtdurchlässigen Verbundkörper mit Lichtleitstiftverlängerungen;

Fig. 15

ein mit einer aushärtbaren Vergussmasse ausgefüllten lichtdurchlässigen Verbundkörper; und

Fig. 16

einen erfindungsgemäßen lichtdurchlässigen Verbundkörper in einer Sandwich-Bauweise.

Further details and features of the invention and specific, particularly advantageous embodiments of the invention will become apparent from the following description taken in conjunction with the drawings. It shows:

Fig. 1a

a translucent composite according to the invention in a front view, which has a number of recesses, through which light can be passed through the composite body;

Fig. 1b

the in Fig. 1a shown translucent composite body with an alternative arrangement of the recesses;

Fig. 2

a first embodiment of a translucent composite body according to the invention in a sectional view;

Fig. 3

A second embodiment of a translucent composite body according to the invention in a sectional view;

Fig. 3a

an alternative embodiment of the in Fig. 3 shown embodiment;

Fig. 4

a further embodiment of a translucent composite body according to the invention in a sectional view;

Fig. 4a

an alternative embodiment of the in Fig. 4 shown embodiment;

Fig. 5

a still further example of a translucent composite according to the invention in a sectional view;

Fig. 6

a preferred embodiment of a translucent composite according to the invention in a sectional view;

Fig. 7

a detailed view A1 after Fig. 6 ;

Fig. 8a, 8b

inventive embodiments of a Lichtleitstiftes the light guide according to the invention;

Fig. 9

an inventive design of a bolt on a Lichtleitstift invention and a corresponding configuration of a recess of a cover plate;

Fig. 10

an inventive embodiment of a cover plate of a translucent composite body;

Fig. 11a, 11b

two alternative embodiments of a Lichtleitstiftes invention of the light guide;

Fig. 12

an embodiment of a pin of the base plate or a bolt of a Lichtleitstiftes with a sealing element arranged thereon;

Fig. 13

a perspective view of a light-transmissive composite body according to the invention with a light guide and two cover plates arranged thereon, which are respectively mounted on the pin of the Lichtleitstifte;

Fig. 14

a translucent composite according to the invention with Lichtleitstiftverlängerungen;

Fig. 15

a translucent composite filled with a curable potting compound; and

Fig. 16

a translucent composite body according to the invention in a sandwich construction.

Detailed description of the invention

Fig. 1a shows a translucent composite body 1 according to the invention in a view from the front or in a plan view. Visible here is a front cover plate 25, which has a number of recesses, openings or holes 26. The holes 26 penetrate the front cover plate 25 completely. The holes 26 each take a bolt of a Lichtleitstiftes a light guide according to the invention (which in Fig. 1a is not visible) on by the cover plate 25 is pressed onto the bolts 17 of the light guide pins. The bolts 17, the light guide pins and the base plate (which in Fig. 1a is not visible) have substantially a photoconductive or translucent material, so that an incident on the bolt 17 or introduced light can reach substantially to the back of the composite body 1 and from the back of the composite body 1 to the pin 17 and can escape there.

Fig. 1b shows a further embodiment of a light-transmitting composite body 1 according to the invention, wherein, in contrast to the embodiment according to Fig. 1a the recesses or holes 26 are arranged differently. Due to the arrangement of the bores 26 and the corresponding arrangement of the Lichtleitstifte on the base plate of the light guide as special patterns, such as numbers or letters can be formed.

In the Fig. 1a and Fig. 1b shown front cover plate 25 may for example comprise aluminum, another metal, plastic or wood. Of course, any other dimensionally stable material for producing the front cover plate 25 may be provided. For the use of a translucent composite body 1 according to the invention as a facade element, however, it is advantageous if the front cover plate 25, if it faces the weather side, has a weather-resistant material.

Fig. 2 shows a translucent composite according to the invention in a sectional view taken along the arrows AA Fig. 1a , The translucent composite body substantially comprises a light guide body 10 and a front cover plate 25 and a back cover plate 20.

The light-guiding body 10 substantially comprises a planarized base plate 11 having an upper side O and a lower side U. At the upper side O, a number of light-guiding pins 15 are substantially perpendicular to the base plate 11 arranged. The light guide 10 is configured in one piece in this embodiment. The light-conducting body 10 has a light-conducting material, preferably polymethyl methacrylate (PMMA) or glass. The light-conducting body 10 can be produced in an injection molding process.

At least some of the light guide pins 15 have at the end facing away from the base plate 11 on an axial projection 17, which is preferably designed as a cylindrical bolt. The bolt 17, together with the base plate facing away from the end of the Lichtleitstiftes 15 a "shoulder" on the front cover plate 25 can be plugged or placed so that the bolts 17 protrude into corresponding recesses or holes 26 of the front cover plate 25. The bolts 17 and the corresponding recesses 26 of the front cover plate 25 are preferably designed so that the bolts 17 can each be inserted substantially positively and / or non-positively in the corresponding recesses 26 of the front cover plate 25 and the front cover plate 25 thereby substantially positively and / or non-positively connect with the light guide 10. As a result, a particularly simple mounting of the cover plate 25 is made possible.

It is also possible that only some of the light guide pins 15 have a corresponding pin 17, so that the front cover plate 25 only rests on this bolt. In this case, the recesses or bores 26 in the region of the light guide pins without bolts can be dispensed with. The light guide pin 15 acts in this area substantially like a resistor, which prevents bending of the front cover plate 25 as far as possible.

In Fig. 2 a back cover plate 20 is likewise shown, which likewise has a number of recesses or bores 21, wherein the bores 21 are arranged substantially concentrically with the light guide pins arranged on the upper side O. At the holes 21 of the back cover plate 20 light can reach the light guide 10 or be introduced into the light guide 10, which can escape to the pin 17. Conversely, light can also enter the bolt 17 and exit at the rear of the translucent composite body in the region of the bores 21 of the rear cover plate 20.

As in Fig. 2 can be seen, the recesses or holes 21 of the rear cover plate 20 have different diameters. Likewise, the bolts 17 on the light guide pins 15 each have a different diameter. The bores 21 and 26 of the rear cover plate 20 and the front cover plate 25 are designed here essentially as round holes. The recesses 21 and / or 26 may also have a different shape. For example, the recesses may have a square or rectangular shape, which ultimately depends on the aesthetic requirements of the translucent composite body.

In Fig. 2 For example, a translucent composite having a back cover plate 20 is shown. In a particular embodiment of the invention can also be dispensed with on the back cover plate 20, so that essentially over the entire region of the base plate 11 light can enter or exit.

The front cover plate 25 may be made of a metal such as aluminum. The back cover plate 20 may be made of the same material as the front cover plate 25 or of another material, such as wood or plastic.

In one embodiment of the invention, the front and / or the rear cover plate can be detachably applied to the light guide, so that the cover can also be removed if necessary and / or possibly by another cover plate, such as a cover made of a different material can be replaced. This provides a particularly flexible system of a composite body according to the invention.

The base plate 11 of the light guide 10 and the front cover plate 25 together form a cavity 30, which may be filled with a filler according to an embodiment of the invention or can be filled. As a filling material, for example, an insulating material may be provided. Alternatively it can be provided as a filler and a curable potting compound, such as concrete or plastic.

As filling material, a gas can also be provided. The cavity 30 is in this case sealed substantially gas-tight.

In the cavity 30 may further be arranged a heating / cooling device 35. Shown is in Fig. 2 a tube 35 through which a thermal fluid can be passed. The tube 35 may meander between the light guide pins 15, so that only two connections for the heating / cooling device 35 must be provided on the composite body.

Fig. 3 shows a further embodiment of a light-transmitting composite according to the invention in a sectional view taken along the arrows AA Fig. 1a , The translucent composite 1 according to Fig. 3 differs from the translucent composite body Fig. 2 in that the base plate 11 of the light guide 10 has a number of recesses, openings or holes 14, which preferably completely penetrate the base plate. The holes 14 of the base plate 11 are particularly advantageous if on the underside U of the base plate 11 also Lichtleitstifte 15 are arranged on which a back cover plate 20 can be applied or plugged, as for example with reference to Fig. 5 and Fig. 6 is shown. The holes 14 of the base plate 11 may also be provided when no light guide pins are provided on the underside U of the base plate 11 and the back cover plate 20 is applied directly to the base plate 11. The base plate 11 can be fixed to the base plate 11, for example by means of an adhesive bond.

In the in Fig. 3 shown, mounting pins 50 are arranged on the front cover plate 25 and / or on the rear cover plate 20, which project into the region between cover plate 25, 20 and base plate 11. The fastening pin 50 can be provided, if the cavity 30 is filled with a filling material, the cover plate 25 and 20 additionally secure by the fixing pins are positively or positively connected to the filler. Preferred embodiments of the mounting pins are with reference to Fig. 10 shown.

Fig. 3a shows an alternative embodiment of the in Fig. 3 shown embodiment of a composite body according to the invention.

The light guide pins 15 have in the upper region on a radial projection (shoulder), whose diameter is slightly larger than the diameter of the openings of the front cover plate 25. The cover plate 25 may rest on the radial projections. Below the radial projection, the diameter of the Lichtleitstifte 15 decreases, so that for the production of the Lichtleitstifte 15 much less material is needed. Preferably, the diameter of the Lichtleitstifte 15 below the radial projections about the same size as the diameter of the axial projection 17th

The light guide pins have a lens 16 at the upper end or at the axial projection 17. The lens 16 may be made of the same material as the light guide pin. This makes it possible to design the light guide pin and the lens 16 in one piece (see right light guide in Fig. 3a ), so that the light guide pin 15 and the lens 16 form a unit and can be manufactured in one manufacturing step. The lens is preferably convex.

Alternatively, the lens 16 may also be made separate from the light guide pin 15 and applied to the light guide pin 15 during assembly of the composite body. The application of the lens 16 can be done with a preferably transparent adhesive, or by form-fitting placement in the openings of the front cover plate 25. In this embodiment, it is advantageous if the lens is designed plano-convex (see Fig. 3a ).

The lens 16 ensures that also obliquely incident light can reach optimally up to the back of the composite body.

At the light guide pins 15, a photovoltaic cell 37 is disposed below the shoulders to generate electricity from the incident light. The photovoltaic cell 37 is preferably designed as a thin-film cell, which can be vapor-deposited onto the surface of the light-guiding pins. This allows a particularly simple production of Lichtleitstifte with integrated solar cells.

In the cavity between the light guide pins 15 heating / cooling means are provided, which are designed here as tubes 35 and through which a thermal fluid can be passed. Through you pipes also a hot water or water vapor can be led. The tubes may be arranged meandering. It may be provided with a larger diameter tube or a plurality of smaller diameter tubes.

With the help of the heating / cooling devices, the inside of a façade can be heated (or cooled in summer). In this case, it is advantageous to insulate the outside of the composite body. For this purpose, an insulating layer 36 may be provided on the side of the front cover plate 25 facing the base plate 11. But instead of the insulating layer can also be a corresponding

Heat insulating material for the front cover plate 25 may be provided. In any case, it is advantageous to arrange the heating / cooling devices 35 as close as possible to the base plate 11, in particular when the cavity 30 is filled with a filling material.

Fig. 4 shows a further embodiment of a translucent composite body according to the invention in a sectional view taken along the arrows AA Fig. 1a ,

The base plate 11 has a number of recesses or holes 14, which completely penetrate the base plate. On the holes 14 but can also be dispensed with, such as in Fig. 2 seen. The base plate 11 has at the top O a number of pins 12, which are arranged substantially perpendicular to the base plate. The base plate 11 and the pins 12 are configured in one piece, wherein the base plate 11 can be made with the pins 12 disposed thereon in an injection molding process.

At the pin 12, a light guide pin 15 is arranged in each case substantially perpendicular to the base plate 11 and connected substantially form-fitting and / or non-positively with the pin 12. Lichtleitstifte 15 have at the base plate 11 facing the end of a pin 12 corresponding blind hole 13, so that the Lichtleitstift 15 can be plugged onto the pin 12 positively and / or non-positively to an independent release of the Lichtleitstiftes 15 of the pin 12 substantially to prevent.

The light guide pin 15 has at the end facing away from the base plate 11 on an axial projection, which is designed as a pin 17. The bolt 17 essentially has a reduced diameter or a reduced edge length. After applying or attaching the Lichtleitstifte 15 on the pin 12, the front cover plate 25, which has the bolt 17 corresponding recesses or holes 26, are applied or attached to the Lichtleitstifte 15, as already with reference to Fig. 2 explained.

Both the light guide pins 15 and the base plate 11 with their pins 12 essentially have a light-transmitting or light-conducting material. It is preferable to use polymethyl methacrylate (PMMA) or glass as the light-transmissive material. For example, the base plate 11 may be made of glass and the light guide pins 15 made of PMMA.

On the underside U of the base plate 11, a back cover plate 20 is arranged, as already with reference to Fig. 2 and Fig. 3 shown. The rear cover plate 20 has a number of openings or holes 21, which are arranged substantially concentric with the arranged on the top or base plate 11 pin. Again, the holes 21 may each have a different diameter or a different shape.

A major advantage of in Fig. 4 shown embodiment of the translucent composite body 1 and the Lichtleitkörpers 10 is that the base plate 11 and the Lichtleitstifte 15 can be made separately from each other and optionally with a different material. Another significant advantage is that the light guide 10 can be flexibly configured depending on the specific requirements of the translucent composite body. For example, corresponding to only some of the pins 12 corresponding Lichtleitstifte 15 are plugged and a corresponding with the plugged light guide pins corresponding front cover plate 25 may be used. The advantage is that the same base plate 11 can be used for different embodiments of the translucent composite body, which in particular simplifies the production of the base plate 11, because the production of different base plates is avoided.

Fig. 4a shows an alternative embodiment of the in Fig. 4 shown embodiment of a composite body according to the invention.

The Lichtleitstifte 15 are positively and / or non-positively arranged on the pin 12. The light guide pins 15 may have a shoulder as described with reference to FIG Fig. 3a described. On the light guide pins or on the axial projections 17 each lens 16 are arranged, as also with reference to Fig. 3a described. The lenses may have different surfaces or different radii of curvature. The surface of the linden can also be formed from several planar surfaces.

The lens 16 may comprise a photochromic coating or an electrochromic coating. This allows the lens to be dimmed automatically or when needed.

As also with respect to Fig. 3a described, 15 photovoltaic cells are arranged on the light guide pins. Because the light guide pins in contrast to the in Fig. 3a embodiment shown are releasably connected to the base plate 11, these can be made together with the photovoltaic cells arranged thereon separately from the base plate, which simplifies the production.

Fig. 5 shows a further embodiment of a translucent composite body according to the invention in a sectional view taken along the arrows AA Fig. 1a , The base plate 11 substantially corresponds to the base plate as shown in FIG Fig. 3 is shown. Unlike the base plate after Fig. 3 are at the base plate after Fig. 5 Also arranged on the underside U Lichtleitstifte 15, preferably concentric with the Lichtleitstiften 15 at the top O of the base plate 11. In this embodiment of the Lichtleitkörpers 10, it is advantageous if the base plate 11 has a number of recesses or holes 14 which the base plate completely penetrate. As a result, the front cover plate 25 and the rear cover plate 20, which like the front cover plate can be applied to the rear side arranged Lichtleitstifte 15 or plugged, form a cavity 30. The cavity 30 may with a Filler material as related to Fig. 2 described, filled, wherein the filler material also enters the holes 14 of the base plate 11, so that a stable connection of the filling material in the front cavity with the filling material in the rear cavity is made possible.

As in Fig. 5 As can be seen, some of the light guide pins 15 may also have a different diameter. For example, the third Lichtleitstift 15 on the underside U of the base plate has a larger diameter than the remaining Lichtleitstifte. The choice of the diameter of the light guide pins 15 or the bolt 17 depends essentially on the aesthetic requirements of the translucent composite body. The diameter of the light guide pins or the bolt can be between a few millimeters and several centimeters.

Fig. 6 shows a particularly preferred embodiment of a translucent composite according to the invention in a sectional view taken along the arrows AA Fig. 1 , The light guide 10 essentially corresponds to the in Fig. 4 shown light guide body. Unlike the in Fig. 4 shown light guide body, the base plate 11 also on the underside U pin 12, on which correspondingly configured Lichtleitstifte 15 are plugged. Again, the base plate 11 can be made separately from the light guide pins 15. Because the light guide pins are attached to the pins 12 of the base plate 11, the base plate can be configured differently depending on the requirement.

In the aforementioned embodiments of the invention, the base plate 11 comprises a light-transmissive material. It may be advantageous if the base plate 11 has a light-transmitting or light-conducting material only in the region of the pins 12 or in the region of the light guide pins 15.

In the middle front cover plate 25 an insulating layer 36 is arranged. This can also be provided if no heating / cooling device is provided in the cavity 30.

Fig. 7 shows the detail view A1 Fig. 6 , Shown here is an enlarged view of the base plate 11 facing away from a Lichtleitstiftes 15 with a pin 17 and a plugged onto the pin 17 cover 25. The cover plate 25 may on the base plate 11 facing side or surface have a seal 40. The seal 40 may be applied to the entire surface of the cover plate 25. Alternatively, the seal 40 may also be applied only in the region of the recess or bore 26 of the cover plate 25.

The seal 40 can either be applied to the cover plate before applying or attaching the cover plate on the light guide 15 or applied to the Lichtleitstifte 15 before attaching the cover plate.

On the pin 17, a lens 16 may be arranged, as with reference to Fig. 3a and Fig. 4a explained.

Fig. 8a and Fig. 8b each show alternative embodiments of a Lichtleitstiftes 15. The Lichtleitstift 15 after Fig. 8a has a substantially cylindrical shape. The bolt 17 is also designed substantially cylindrical. Alternatively, the Lichtleitstift 15 also have a square or rectangular cross-section. Also, the bolt 17 may have a square or rectangular cross-section. Other cross sections for the Lichtleitstift 15 and / or for the bolt 17 are possible.

The light guide pin after Fig. 8b has an upwardly tapered or conical shape, which is in the production of a one-piece configured light-conducting body, as related to Fig. 2 is shown, is advantageous, since the light guide can be removed particularly easily from an injection molding tool. The bolt 17, however, has a cylindrical shape. The bolt 17 may also have a rectangular, square or other suitable cross section here, although the diameter or the side lengths remain the same over the entire height, in order to ensure a force-fitting application or attachment of the cover plate on the bolt 17.

Fig. 9 shows a preferred embodiment of a bolt 17 of a Lichtleitstiftes 15. The free end of the bolt 17 has a slight bevel 19, so that the bolt 17 forms a so-called conical tip at its free end. As a result, the attachment of the cover plate is facilitated on the bolt 17.

The cover plate 25 and the holes of the cover plate also have a bevel 19 corresponding to the pin 17 bevel 29, so that after applying the cover plate on the bolt 17 around the bolt circumferential recesses or columns are avoided, in which, for example, dirt can settle.

Fig. 10 shows a cover plate 20, 25 with fixing pins 50a, 50b, 50c arranged thereon. In one embodiment, the attachment pin 50a has a barb element 51 at the free end. In a further embodiment, the fastening pin 50b has one or more holes 52, which preferably completely penetrate the fastening pin 50b. In a still further embodiment, the fastening pin 50c has both a barb element 51 and at least one bore 52. With the help of the barbs 51 and the bore 52, the cover plate 20, 25, if the cavity 30 between the cover plate and the base plate 11 has a filling material, substantially positively connected to the filler material to prevent inadvertent release of the cover plate of the light guide as far as possible ,

Fig. 11a and Fig. 11b show different embodiments of a Lichtleitstiftes 15 in a perspective view. Fig. 11a shows a cylindrical Lichtleitstift 15 with a cylindrical pin 17th Fig. 11b shows a light guide pin 15 having a substantially square cross-section and a bolt 17, which also has a substantially square cross-section.

Fig. 12 shows an enlarged view of a pin 12 and a bolt 17. On the pin 12 and bolt 17, a sealing element or a locking ring 60 may be arranged. Preferably, the pin 12 or pin 17 has a circumferential groove 61 for receiving the sealing element or retaining ring 60. The sealing element may be about an elastic O-ring. As a circlip, for example, a snap ring may be provided. With the help of the sealing element, the cavity of the translucent composite body can be largely sealed. On a seal 40, as related to Fig. 7 is described, can be dispensed with.

The cover plate 20, 25 may have a groove 62 corresponding to the sealing element or securing ring 60 in the bores 21, 26. Furthermore, the blind hole 13 of the Lichtleitstiftes 15 may have a radial groove for receiving the sealing element and / or the retaining ring.

The sealing element and / or the securing ring 60 preferably have a transparent, particularly preferably a light-conducting material in order not to influence the visual impression of the light-permeable composite body.

With the retaining ring 60, which can be configured as a snap ring, a particularly stable attachment of the cover plate is achieved on the bolt 17. For this purpose, it is sufficient if only some of the light guide pins 15 have a corresponding snap ring.

Fig. 13 shows a translucent composite body 1 according to the invention in a perspective view. The translucent composite body comprises a light guide body 10, which comprises a base plate 11 with arranged at the top O and the bottom U light guide pins 15, and an upper cover plate 25 and a lower cover plate 20. The upper and lower cover plate 25, 20 each have recesses or bores, which correspond to the bolts 17 of the Lichtleitstifte to the cover plate 25, 20 can attach to the bolt or on the Lichtleitstifte 15. Furthermore, the base plate 11 has a number of holes 14, which preferably completely penetrate the base plate.

The cavity formed between the upper cover plate 25 and the lower cover plate 20 can be filled with a filling material, preferably an insulating material.

If at the cover plates seals 40 (see. Fig. 7 ) and / or sealing elements 60 (cf. Fig. 12 ) are provided, can be completely dispensed with a filler. The upper cover plate 25 may be about a metal, preferably aluminum. The lower cover plate 20 may for example comprise wood. Thus, the translucent composite body can also be used as a facade element, wherein the upper cover plate 25 is arranged on the weather side. Thus, a translucent composite body is provided, which is protected as a facade element on the weather side from the weather and which room side has a particularly appealing aesthetics.

Fig. 14 shows a translucent composite according to the invention with Lichtleitstiftverlängerungen.

The Lichtleitstiftverlängerungen 70 are provided to increase the distance between the base plate 11 and the cover plates 20, 25 so that translucent Composite body can be made with a greater width or depth.

The provision of Lichtleitstiftverlängerungen 70 is particularly advantageous if the base plate 11 and arranged thereon Lichtleitstifte 15 are integrally formed, as in the right part of Fig. 14 shown. As a result, the same base plates 11 with light guide pins 15 arranged thereon can be used both for wide and for narrow composite bodies. The manufacture of the base plates with the light guide pins is thereby simplified.

Lichtleitstiftverlängerungen 70 have at the lower end of a blind hole 71, which corresponds to the pin 17 on the Lichtleitstift 15. In this blind hole 71 of the bolt 17 is brought into engagement. In order to ensure a firm connection between the bolt 17 and the Lichtleitstiftverlängerung 70, the Lichtleitstiftverlängerung 70 by means of an adhesive bond to the pin 17 and on the Lichtleitstift 15 are attached. The adhesive bond preferably comprises a translucent adhesive.

At the upper end, the Lichtleitstiftverlängerung 70 also have a bolt which can be brought into engagement with the recesses 21, 26 of the cover plates 20, 25.

The upper end of the Lichtleitstiftverlängerung 70 may also have a blind hole 72, so that a lens 16 can be attached to the upper end of Lichtleitstiftverlängerung 70. The lens 16 can also be connected to the Lichtleitstiftverlängerung 70 with a substantially translucent adhesive. Alternatively, the upper end of the Lichtleitstiftverlängerung 70 and the pin may be formed at the upper end of the Lichtleitstiftverlängerung 70 as a lens.

Fig. 15 shows a filled with a curable potting translucent composite body.

In this example of a translucent composite body, a light-conducting body according to the invention is arranged in a casting mold and then the casting mold is filled with a curable potting compound, for example concrete. The light guide body is preferably arranged in the casting mold in such a way that the free ends of the light guide pins of the light guide body lie flush against the respective wall of the casting mold. This ensures that after removing the composite body from the mold or after removing the walls, the free ends of the Lichtleitstifte are visible from the outside, so that no action is necessary to expose the Lichtleitstifte.

As in Fig. 15 can be arranged on the light guide pins 15 and lenses 16 may be arranged. In this case, it is advantageous if the mold or the formwork of the mold has corresponding recesses into which the lenses can be engaged. After removal of the formwork then the lenses are free.

In the manufacture of the composite body and Lichtleitstiftverlängerung 70 may be attached to the light guide before the light guide is placed in the mold.

Fig. 16 shows a translucent composite body according to the invention in a sandwich construction.

In this example, the composite body comprises two light guide bodies which are arranged relative to one another such that the base plates of the light guide bodies are substantially parallel to one another and the light guide pins of the upper light guide body are aligned with the light guide pins of the lower light guide body. The light guide pins arranged in this way then form a pair of optical fibers in pairs between the front and back of the composite. The respective light guide pins can be firmly connected to each other, for example via a clip mechanism or by means of an adhesive connection. Alternatively, the connection can also be made via spacers 75. With the spacers 75 and the depth or width of the composite body can be adjusted. The spacers themselves are also transparent or light-conducting configured.

The composite of two light-conducting bodies thus produced is subsequently filled with an insulating compound 32, i. In the cavity between the upper base plate and the lower base plate, an insulating material 32 is injected or poured.

The two light guide then form together with the insulating material 32 a sandwich body.

Subsequently, the sandwich body is placed in a mold and the cast is then poured with a hardening material, such as concrete, ie the cavity between the walls 80 of the mold and the base plates of the light guide is filled with the curing material. The arrangement of the sandwich body in the mold is substantially as with respect to Fig. 16 described.

According to a variant of the production method, the casting mold can be open at the bottom, ie essentially consists only of the side walls 80. The casting mold, which is open at the bottom, is arranged on a base 90, wherein connecting rods 95 project on the base 90. The connecting rods 95 protrude into the interior of the mold. The sandwich body is then placed in the mold so that the protruding connecting rods protrude into the space to be filled with the hardenable casting compound. After the mold has been filled with the hardenable casting compound and the casting compound has hardened, there is a firm connection between the connecting rods 95 the composite body and the substrate 90. The substrate 90 may be about a raw concrete ceiling or a floor slab.

Prior to filling the mold, a reinforcement may also be placed between the photoconductive pins to increase the stability of the composite.

LIST OF REFERENCE NUMBERS

1

Light-permeable composite body

10

fiber-optic element

11

Base plate of the light guide body

12

Spigot (preferably cylindrical) on the base plate

13

Blind hole or with the pin corresponding recess (preferably cylindrical) of the Lichtleitstiftes

14

Recess, opening or bore on the base plate

15

Light guide pins of the light guide

16

Lens on the light guide pin

17

Bolt on the light guide pin (axial projection of reduced diameter or reduced edge length)

19

Bevel of the bolt (cone point)

20

back cover plate

21

Recess, opening or bore on the back cover plate

25

front cover plate

26

Recess, opening or bore on the front cover plate

29

bevel of the cover plate corresponding to the bevel of the bolt

30

cavity

31

hardenable potting compound

32

Dämmmasse

35

Heating / cooling means

36

damp course

37

Solar cell (photovoltaic cell)

40

seal

50, 50a, 50b, 50c

fastening pins

51

Barb elements of the mounting pins

52

Holes in the fixing pins

60

Sealing element (e.g., O-ring) or retaining ring (e.g., snap ring) on pin and / or bolt

61

on the pin and / or bolt circumferential groove for receiving the sealing element and / or retaining ring

62

with the sealing element / retaining ring corresponding groove (radial groove) in the blind hole and / or in the recess of the cover plates

70

Lichtleitstiftverlängerung

71

Blind hole at the lower end of the Lichtleitstiftverlängerung

72

Blind hole at the upper end of the Lichtleitstiftverlängerung

75

spacers

80

Sidewall of the mold

90

Underground, e.g. Base plate or raw concrete ceiling

95

connecting rods

A-A

Section A-A

A1

detailed view

O

Top of the base plate

U

Bottom of the base plate

Claims (17)

Optical waveguide (10), comprising a substantially flat configured base plate (11) having an upper side (O) and a lower side (U) and at least one Lichtleitstift (15), wherein the at least one Lichtleitstift (15) substantially perpendicular to the base plate (11 ) is arranged, wherein at the at least one light guide pin (15) on the base plate (11) facing away from a lens (16) is arranged. The light guide body according to claim 1, wherein the base plate (11) has a number of pins (12) on the upper side and / or lower side, and wherein the at least one light guide pin (15) is connected to a pin (12) in a substantially positive and / or non-positive manner is. The optical waveguide according to claim 1 or 2, wherein the light guide pin (15), the pin (12) and the lens (16) comprise a photoconductive material, preferably polymethyl methacrylate (PMMA) or glass, and wherein the base plate (11) at least in the region of Pin (12) comprises a photoconductive material, and / or wherein the Lichtleitstift (15) and arranged thereon the lens (16) are integrally formed. Optical guide according to one of the preceding claims, wherein the lens (16) has a photochromic coating or an electrochromic coating. Optical guide according to one of the preceding claims, wherein a photovoltaic cell is arranged on the at least one optical guide pin (15). A translucent composite body (1) comprising a first light guide body (10), wherein - The light guide body (10) comprises a substantially flat configured base plate (11) having a top (O) and a bottom (U), wherein at the top (O) and / or at the bottom (U) a number of light guide pins ( 15) are arranged substantially perpendicular to the base plate (11), and - Wherein on the upper side (O) and / or on the underside (U) of the base plate, a curable potting compound (31) is applied, so that the Lichtleitstifte (15) are at least partially surrounded by the potting compound (31). Composite body according to the preceding claim, wherein the base plate (11) on the upper side (O) and / or on the underside (U) has a number of pins (12), wherein the light guide pins (15) facing on the base plate (11) Have a blind hole (13), each receiving a pin (12), and wherein the pins (12) substantially form-fitting and / or non-positively connected to the blind hole (13) of the respective Lichtleitstiftes (15). The composite body according to claim 6, wherein the composite body comprises a second light guide body, the second light guide body being arranged relative to the first light guide body such that the base plate of the first light guide body is substantially parallel to the base plate of the second light guide body and the arranged on the underside of the first Lichtleitkörpers arranged Lichtleitstifte with the arranged at the top of the second Lichtleitkörpers Lichtleitstifte. A composite body according to claim 8, wherein the arranged on the underside of the first Lichtleitkörpers Lichtleitstifte are connected to the arranged at the top of the second Lichtleitkörpers Lichtleitstiften, wherein for connection preferably a spacer (75) is provided, which a photoconductive material, preferably polymethylmethacrylate (PMMA) or glass. Composite body according to one of claims 8 to 9 wherein the cavity between the base plate of the first Lichtleitkörpers and the base plate of the second Lichtleitkörpers with a filler, preferably an insulating material is filled or substantially forms a vacuum. Composite body according to one of the preceding claims 6 to 10, wherein on the base plate (11) facing away from the end of at least one Lichtleitstiftes a lens is arranged, wherein the lens (16) preferably has a photochromic coating or an electrochromic coating. Composite body according to one of the preceding claims 6 to 11, wherein a photovoltaic cell is arranged on the at least one light guide pin (15) or on the spacer (75). Composite body according to one of the preceding claims 6 to 12, wherein in the cavity (30) formed by the cover plates (20, 25) or in the cavity (30) formed by a cover plate (20, 25) and the base plate (11), a heating / cooling device is arranged , Process for producing a light-transmitting composite body, in particular according to one of Claims 6 to 13, the process comprising at least the following steps: - Producing a base body of two light-conducting bodies (10), in particular according to one of claims 1 to 5, wherein the two light guide are arranged relative to each other such that the base plate of the first light guide is substantially parallel to the base plate of the second light guide and at the bottom of the first light guide body arranged Lichtleitstifte aligned with the arranged at the top of the second Lichtleitkörpers Lichtleitstiften, Producing a sandwich body by pouring the cavity between the base plate of the first light guide body and the base plate of the second light guide body with a filling material, preferably an insulating material, - placing the sandwich body in a mold, and - Fill the mold with a hardenable casting material, preferably concrete. The method of claim 14, wherein at least one side wall (80) of the mold openings or recesses (21, 26), in which the Lichtleitstifte at least partially engage, and / or wherein the base plate remote from the ends of the Lichtleitstifte abut flush with the side walls. A method according to claim 14 or 15, wherein prior to placing the sandwich body in the mold, the mold is partially filled with the curable molding compound and the sandwich body is inserted into the molding compound. A method according to any one of claims 14 to 16, wherein the mold, which is open at the bottom, is placed on a substrate (90), wherein the sandwich body is placed in the mold such that connecting bars (95) projecting from the substrate (90) protrude the space to be filled with the hardenable casting material.

Images