EP0549587B1 - Support for light diffusers - Google Patents

Support for light diffusers Download PDF

Info

Publication number
EP0549587B1
EP0549587B1 EP91912141A EP91912141A EP0549587B1 EP 0549587 B1 EP0549587 B1 EP 0549587B1 EP 91912141 A EP91912141 A EP 91912141A EP 91912141 A EP91912141 A EP 91912141A EP 0549587 B1 EP0549587 B1 EP 0549587B1
Authority
EP
European Patent Office
Prior art keywords
support
plates
layer
tracks
light diffusers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91912141A
Other languages
German (de)
French (fr)
Other versions
EP0549587A1 (en
Inventor
Patrizio Corro
Alessandro Marazzato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fabbian Franco & Flli SNC
Original Assignee
Fabbian Franco & Flli SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fabbian Franco & Flli SNC filed Critical Fabbian Franco & Flli SNC
Publication of EP0549587A1 publication Critical patent/EP0549587A1/en
Application granted granted Critical
Publication of EP0549587B1 publication Critical patent/EP0549587B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/005—Lighting devices intended to be free-standing with a lamp housing maintained at a distance from the floor or ground via a support, e.g. standing lamp for ambient lighting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips

Definitions

  • This invention relates to a support for light diffusers.
  • Lighting appliances comprising a support consisting of a rigid frame for suspending from the ceiling, for fixing to a wall, 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 the electricity mains is made by an electric cable which in some case is passed through the inside of the support (with a considerable time required for its insertion) and in other case is arranged external to the support (to the detriment of the appearance of the appliance).
  • DE-U-87 121 441 describes a support for light diffusers comprising two glass plates on which at least two conducting tracks are applied, the conducting tracks extending through the whole area of the plates being covered by a layer of insulating material.
  • the lighting capacity is limited to the largest power of the low voltage and furthermore the diffusers requires two distinct supports since the inner net cannot be divided.
  • the support according to the invention comprises substantially two plates of translucent glass 1,1′, on the inside of which there are provided two tracks 2 of conducting paste, for example based on silver.
  • the ends of the two conducting tracks 2 are connected to the electrical contacts of the light diffuser 3 and to the electrical mains contacts respectively.
  • the support according to the invention is prepared in the following manner: two rectangular preferably translucent glass plates are taken and their edges ground. Two tracks of conducting paste, preferably silver based, are then applied along one of the two glass plates by means of a silk-screen frame, after which the plate is dried to solidify the paste.
  • the plates are then tempered to improve their mechanical characteristics and to bake the paste of the conducting tracks, which thus become fixed to the supports.
  • PVB polyvinyl butyral
  • the plates can be glued with a conventional glue or joined by bolts.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Planar Illumination Modules (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Endoscopes (AREA)
  • Connection Of Plates (AREA)
  • Road Signs Or Road Markings (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)

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

  • This invention relates to a support for light diffusers.
  • Lighting appliances are known comprising a support consisting of a rigid frame for suspending from the ceiling, for fixing to a wall, 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 the electricity mains is made by an electric cable which in some case is passed through the inside of the support (with a considerable time required for its insertion) and in other case is arranged external to the support (to the detriment of the appearance of the appliance).
  • DE-U-87 121 441 describes a support for light diffusers comprising two glass plates on which at least two conducting tracks are applied, the conducting tracks extending through the whole area of the plates being covered by a layer of insulating material.
  • These diffusers can operate only at low voltage since the conducting wires reach the side cut sections.
  • Therefore the lighting capacity is limited to the largest power of the low voltage and furthermore the diffusers requires two distinct supports since the inner net cannot be divided.
  • These drawbacks are overcome by a light diffuser support as claimed in claim 1.
  • The present invention is further clarified hereinafter with reference to the accompanying drawings, in which:
    • Figure 1
    is an interrupted perspective view of a support according to the invention; and
    Figure 2
    shows it applied to a lighting appliance.
  • As can be seen from the figures, the support according to the invention comprises substantially two plates of translucent glass 1,1′, on the inside of which there are provided two tracks 2 of conducting paste, for example based on silver. The ends of the two conducting tracks 2 are connected to the electrical contacts of the light diffuser 3 and to the electrical mains contacts respectively.
  • The support according to the invention is prepared in the following manner:
    two rectangular preferably translucent glass plates are taken and their edges ground. Two tracks of conducting paste, preferably silver based, are then applied along one of the two glass plates by means of a silk-screen frame, after which the plate is dried to solidify the paste.
  • The plates are then tempered to improve their mechanical characteristics and to bake the paste of the conducting tracks, which thus become fixed to the supports.
  • After this tempering stage a layer of PVB (polyvinyl butyral) is applied between the two plates, which are then placed together under vacuum so that they become irreversibly joined. The plates prepared in this manner are connected to the diffuser conductors and to the mains leads.
  • Instead of being glued together with PVB, the plates can be glued with a conventional glue or joined by bolts.
  • From the aforegoing it is clear that the support according to the invention has numerous advantages, including:
    • a pleasing appearance because of the elimination of any 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 (5)

  1. A support for light diffusers (3), characterised by comprising two opposite glass plates (1,1′), on one of them at least two separated conducting tracks (2) being applied by a silk-screen frame, said tracks (2) extending along the complete length of the plate and being connected at their ends respectively to electric mains and to diffuser conductors, said two plates (1,1′) being coupled each other through the surface on which the conducting tracks (2) are applied, a layer of insulating material being interposed between the facing surfaces of said plates.
  2. A support as claimed in claim 1, characterised in that said layer of insulating material is of polyvinyl butyral.
  3. A support as claimed in claim 1, characterised in that the glass plates are formed of diaphanous material.
  4. A support as claimed in claim 1, characterised in that the glass plates are formed of translucent material.
  5. A support as claimed in claim 2, characterised in that the layer of polyvinyl butyral is used as adhesive.
EP91912141A 1990-06-22 1991-06-21 Support for light diffusers Expired - Lifetime EP0549587B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT61929U IT221181Z2 (en) 1990-06-22 1990-06-22 SUPPORT FOR LIGHT DIFFUSER
IT6192990U 1990-06-22
PCT/EP1991/001150 WO1992000488A1 (en) 1990-06-22 1991-06-21 Support for light diffusers

Publications (2)

Publication Number Publication Date
EP0549587A1 EP0549587A1 (en) 1993-07-07
EP0549587B1 true EP0549587B1 (en) 1994-09-14

Family

ID=11292822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91912141A Expired - Lifetime EP0549587B1 (en) 1990-06-22 1991-06-21 Support for light diffusers

Country Status (6)

Country Link
EP (1) EP0549587B1 (en)
AT (1) ATE111578T1 (en)
AU (1) AU8069091A (en)
DE (1) DE69104050T2 (en)
IT (1) IT221181Z2 (en)
WO (1) WO1992000488A1 (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4461922A (en) * 1983-02-14 1984-07-24 Atlantic Richfield Company Solar cell module
NL8300581A (en) * 1983-02-16 1984-09-17 Hazemeijer Bv COMPOSITION FOR A CURRENT LIMITING HIGH VOLTAGE MELT SAFETY.
GB2203691B (en) * 1987-04-24 1990-04-25 Hon Yee Looi Bath or shower panel
DE8712144U1 (en) * 1987-09-08 1987-12-17 Tolk, Wolfgang, 5000 Koeln lamp

Also Published As

Publication number Publication date
ATE111578T1 (en) 1994-09-15
AU8069091A (en) 1992-01-23
IT9061929U1 (en) 1991-12-22
WO1992000488A1 (en) 1992-01-09
IT221181Z2 (en) 1994-02-16
DE69104050T2 (en) 1995-03-09
EP0549587A1 (en) 1993-07-07
DE69104050D1 (en) 1994-10-20
IT9061929V0 (en) 1990-06-22

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