SUPPORT FOR LIGHT DIFFUSERS

Abstract: A support for light diffusers, characterised by comprising at least one glass plate (1, 1') on which at least two conducting tracks (2) are applied by a silk-screen frame.

Description: Support for light diffusers This invention relates to a support for light diffusers. Lighting appliances are known comprising a suppor consisting of a rigid frame for suspending from the ceiling for fixing to a w .ll, or for resting on a base on the floor and provided at one end with a light diffuser- The electrical connection between the diffuser and th electricity mains is made by an electric cable which in som cases is passed through the inside of the support (with considerable time required for its insertion) and in othe cases is arranged external to the support (to the detrimen of the appearance of the appliance). These drawbacks are overcome by a light diffuser suppor according to the invention, characterized by comprising a least one glass plate on which at least two conducting track are applied by a silk-screen frame. The present invention is furhter clarified hereinafte with reference to the accompanying drawings, in which: Figure 1 is an interrupted perspective view of a suppor according to the invention; and Figure 2 shows it applied to a lighting appliance. As can be seen from the figures, the support accordin to the invention comprises substan ially two plates o — r * _-. translucent glass 1,1', on the inside of which there ar provided two tracks of conducting paste, for example based o silver. The ends of the two conducting tracks are connecte to the electrical contacts of the light diffuser 3 and to th electrical mains contacts respectively. The support according to the invention is prepared i the following manner: two rectangular preferably translucent glass plates are take and ' their edges ground. Two tracks of conducting paste, preferably silver based, are then applied along one of th two glass plates by means of a silk-screen frame, after whic the plate is dried to solidify the paste. The plates are then tempered to improve their mechanica characteristics and to bake the paste of the conductin tracks, which thus become fixed to the supports. After this tempering stage a layer of PVB (polyviny butyral) is applied between the two plates, which are the placed together under vacuum so that they become irreversibl joined. The plates prepared in this manner are connected t the diffuser conductors and to the mains leads. Instead of being glued together with PVB, the plates ca be glued with a conventional glue or joined by bolts. From the aforegoing it is clear that the suppor according to the invention has numerous advantages, including: - a pleasing appearance because of the elimination of an exposed conductor, - the fact of acting as a light diffuser, conductor and insulator at the same time, ie functions which were previously performed by separate parts-

Claims: - A - C L A I M S 1- A support for light diffusers, characterised b comprising at least one glass plate (1,1' ) on which at least two conducting tracks (2) are applied by a silk-screen frame. 2- A support as claimed in claim 1, characterised in tha said conducting tracks (2) are covered by a layer o insulating material - 3. A support as claimed in claim 2, characterised in that metal plate is applied to the layer of insulating material- 4. A support as claimed in claim 2, characterised in tha said layer of insulating material is of • polyvinyl butyral . 5. A support as claimed in claim 1, characterised b consisting of two plates joined together. 6. A support as claimed in claim 1, characterised by bein formed of diaphanous material- 7- A support as claimed in claim 1, characterised by bein formed of translunσent material - 8- A support as claimed in claim 1, characterised in tha the layer of polyvinyl butyral is used as adhesive.

Inventors: CORRU PATRIZIO, MARAZZATO ALESSANDRO, CORRU, PATRIZIO, MARAZZATO, ALESSANDRO
Applicants: FABBIAN FRANCO & FLLI, FABBIAN FRANCO & F.LLI S.N.C.
Application year: 1991
Main classification: F21S1
IPC codes: F21S6, F21V21