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WO2003033960A1 - Reflecteur sans ouvertures d'aeration, son procede de production et son utilisation - Google Patents

Reflecteur sans ouvertures d'aeration, son procede de production et son utilisation Download PDF

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Publication number
WO2003033960A1
WO2003033960A1 PCT/EP2002/010111 EP0210111W WO03033960A1 WO 2003033960 A1 WO2003033960 A1 WO 2003033960A1 EP 0210111 W EP0210111 W EP 0210111W WO 03033960 A1 WO03033960 A1 WO 03033960A1
Authority
WO
WIPO (PCT)
Prior art keywords
reflector
coated
polymer
transparent layer
layer
Prior art date
Application number
PCT/EP2002/010111
Other languages
German (de)
English (en)
Inventor
Thomas Küpper
Rolf Meyer
Original Assignee
Schott Glas
Carl-Zeiss-Stiftung Trading As Schott Glas
Carl-Zeiss-Stiftung
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 Schott Glas, Carl-Zeiss-Stiftung Trading As Schott Glas, Carl-Zeiss-Stiftung filed Critical Schott Glas
Priority to AU2002339547A priority Critical patent/AU2002339547A1/en
Publication of WO2003033960A1 publication Critical patent/WO2003033960A1/fr

Links

Classifications

    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/24—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by the material
    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F21V7/28—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors characterised by coatings
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/02—Safety devices structurally associated with lighting devices coming into action when lighting device is disturbed, dismounted, or broken
    • 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
    • F21V25/00—Safety devices structurally associated with lighting devices
    • F21V25/12—Flameproof or explosion-proof arrangements

Definitions

  • the invention relates to a reflector in which no light emerges from ventilation slots and in which the noise is greatly reduced, further to a method for its production and its use.
  • the reflectors generally have an elliptical, parabolic or conic-like basic contour. They can contain glass or glass-ceramic as a substrate. Gas discharge lamps are used as lamps; these are under a high internal pressure of up to 2 * 10 5 hPa. Although they have numerous technological advantages, their service life is limited by thermochemical influences. In general, the lifespan is on the order of 2000 hours. A serious disadvantage of such luminous bodies is that they are destroyed by an explosion at the end of their service life. The reflector is so badly damaged by the explosion of the filament that glass fragments fly around and cause considerable danger. The explosion can damage valuable optical components. To avoid splintering, reflectors with a large wall thickness have been manufactured. The wall thickness is more than 4 mm.
  • a reflector which has a sandwich structure as a mirror support.
  • the core consists of a flexible lightweight body on which plastic plates are attached to the front and back to create a dimensionally stable structure.
  • a hard and smooth substrate for example made of glass or metal, can also be attached to the inside as a flat base for a reflective film or film.
  • Such a mirror support is relatively complex and expensive to manufacture and its shape is rather unstable.
  • An outer coating to avoid splintering in the event of an explosion of the luminous element or an outer coating to avoid light transmission through the mirror carrier is not necessary here.
  • the object of the invention is to provide a reflector made of glass or glass ceramic, in which no light emerges from ventilation slots and no cooling by fans is required, furthermore the reflector remains stable in the event of an explosive destruction of the luminous element, furthermore a method for its production and indicate its use.
  • the object of the invention is achieved by a reflector according to claim 1, a method for producing the reflector is given by claim 8 and its use by claim 11.
  • a reflector of the type mentioned at the outset is provided with a coating.
  • the coating consists of a polymer that is resistant to high temperatures and that forms a coherent layer over the circumference of the reflector.
  • the entire outer surface of the reflector need not necessarily be covered by the polymer layer. It may also be sufficient to place a polymer layer ring around the reflector, which — viewed in the axial direction of the reflector — extends over the necessary part of the reflector surface.
  • the non-transparent layer prevents light from escaping through ventilation slots. Fewer or smaller fans are also required, which reduces noise.
  • the polymer layer contains in particular a fluoropolymer.
  • Fluoropolymers have proven to be particularly temperature-resistant. In the event of an explosion, the fluoropolymer prevents splinters from flying around. The fluoropolymer layer withstands the strongest explosion pressure.
  • the non-transparent layer contains at least one of the following components, such as lacquer, primer or polymer.
  • a non-transparent layer of approximately 5 ⁇ m to 30 ⁇ m is applied by spraying or dipping.
  • the layer has a density that prevents the light from escaping.
  • the fluoropolymer layer in no way affects the original function of the reflector, namely to guide the infrared rays out to the side.
  • the so-called because of this function Cold light reflector can be used as intended.
  • the externally coated cold light reflector is therefore of great economic importance.
  • the polymer layer thickness is from 5 ⁇ m to 200 ⁇ m, preferably from 50 ⁇ m to 180 ⁇ m and particularly preferably from 80 ⁇ m to 170 ⁇ m. In the non-hazardous areas, a layer thickness of preferably 35 ⁇ m to 50 ⁇ m is sufficient. In areas that are at risk of explosion, the layer thickness is preferably from 120 ⁇ m to 170 ⁇ m.
  • the neck of the reflector is preferably not coated.
  • a method for producing a coated reflector is provided, the reflector being coated with at least one non-transparent layer and then being powder-coated in layers and thermally aftertreated.
  • a method for producing a coated reflector is alternatively provided, the reflector being coated with at least one non-transparent layer and then being coated by dipping or spraying and thermally aftertreated.
  • a non-transparent layer is applied to the outer surface, which contains at least one of the following components, such as paint, primer or polymer. These components can be processed economically and in an environmentally friendly manner and lead to very good results in terms of non-transparency.
  • FIG. 1 shows a coated reflector (1).
  • Figure 2 shows a section parallel to the axis AA through the reflector (1).
  • the reflector (1) has glass or glass ceramic as the substrate (2).
  • the substrate (2) is coated with a non-transparent primer (3).
  • the primer (3) has the task of forming a non-transparent layer and acting as an adhesion promoter between the substrate (2) and the polymer (4).
  • the polymer (4) is applied to the primer (3).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Laminated Bodies (AREA)

Abstract

La présente invention concerne un réflecteur destiné à une lampe comportant un élément lumineux à décharge haute pression, la surface extérieure de ce réflecteur étant recouverte d'au moins un polymère. Ce recouvrement contient au moins un polymère fluoré. L'épaisseur de couche du polymère est de 5 νm à 200 νm. La présente invention concerne en outre un procédé de production d'un réflecteur pourvu d'un revêtement, ce réflecteur étant recouvert avec de la poudre en couches ou bien selon un procédé de trempage ou de pulvérisation, puis traité thermiquement. Enfin, la présente invention concerne l'utilisation d'un réflecteur dans des appareils de projection et dans des dispositifs optiques de prix, servant à la projection de données en tant que projecteur et à d'autres fins d'éclairage.
PCT/EP2002/010111 2001-10-13 2002-09-10 Reflecteur sans ouvertures d'aeration, son procede de production et son utilisation WO2003033960A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002339547A AU2002339547A1 (en) 2001-10-13 2002-09-10 Reflector without ventilation apertures, method for the production thereof and use of the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10150755.0 2001-10-13
DE10150755A DE10150755C1 (de) 2001-10-13 2001-10-13 Reflektor ohne Belüftungsöffnungen, Verfahren zur Herstellung desselben und Verwendung des Reflektors

Publications (1)

Publication Number Publication Date
WO2003033960A1 true WO2003033960A1 (fr) 2003-04-24

Family

ID=7702514

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2002/010111 WO2003033960A1 (fr) 2001-10-13 2002-09-10 Reflecteur sans ouvertures d'aeration, son procede de production et son utilisation

Country Status (3)

Country Link
AU (1) AU2002339547A1 (fr)
DE (1) DE10150755C1 (fr)
WO (1) WO2003033960A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7091141B2 (en) 2003-04-01 2006-08-15 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1348606A (fr) * 1962-11-30 1964-01-10 Holophane Réflecteur en verre avec revêtement de sécurité
US4837668A (en) * 1988-01-28 1989-06-06 Koehler Joseph P Reflector for dental or medical light
DE3723245C2 (de) 1986-07-18 1995-01-19 Mitsubishi Electric Corp Reflektor
DE4426843A1 (de) 1993-07-29 1995-02-02 Rogers Corp Elektrisches Fluorpolymer-Substratmaterial mit niedrigem Wärmekoeffizient der Dielektrizitätskonstante
JP2000047327A (ja) * 1998-07-31 2000-02-18 Iwasaki Electric Co Ltd 投影装置用光源
JP2001005099A (ja) * 1999-06-25 2001-01-12 Matsushita Electric Ind Co Ltd 光源装置およびこれを用いたプロジェクタ
JP2001176302A (ja) * 1999-12-16 2001-06-29 Ushio Inc 光学装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1348606A (fr) * 1962-11-30 1964-01-10 Holophane Réflecteur en verre avec revêtement de sécurité
DE3723245C2 (de) 1986-07-18 1995-01-19 Mitsubishi Electric Corp Reflektor
US4837668A (en) * 1988-01-28 1989-06-06 Koehler Joseph P Reflector for dental or medical light
DE4426843A1 (de) 1993-07-29 1995-02-02 Rogers Corp Elektrisches Fluorpolymer-Substratmaterial mit niedrigem Wärmekoeffizient der Dielektrizitätskonstante
JP2000047327A (ja) * 1998-07-31 2000-02-18 Iwasaki Electric Co Ltd 投影装置用光源
JP2001005099A (ja) * 1999-06-25 2001-01-12 Matsushita Electric Ind Co Ltd 光源装置およびこれを用いたプロジェクタ
JP2001176302A (ja) * 1999-12-16 2001-06-29 Ushio Inc 光学装置

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 05 14 September 2000 (2000-09-14) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 16 8 May 2001 (2001-05-08) *
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 23 10 February 2001 (2001-02-10) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7091141B2 (en) 2003-04-01 2006-08-15 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same
US7199066B2 (en) 2003-04-01 2007-04-03 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same
US7285506B2 (en) 2003-04-01 2007-10-23 Corning Incorporated Lamp reflector substrate, glass, glass-ceramic materials and process for making the same

Also Published As

Publication number Publication date
DE10150755C1 (de) 2003-02-27
AU2002339547A1 (en) 2003-04-28

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