Title:
IRRADIATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2012/065688
Kind Code:
A3
Abstract:
Typical irradiation devices have a housing (5) with an interior space and an infrared emitter (1) arranged therein. The infrared emitter (1) has an emitter tube (2) composed of high-silica glass with a round cross section and prespecified external diameter and a ribbon-shaped or helical heating filament (3) arranged therein, which emitter tube is provided with electrical connection elements (4) composed of a metallic material, which are guided out of the emitter tube (2) via a sealing means (13). At least one of the emitter-tube ends (8) extends into an external space which is fluidically separated from the interior space via a sealing element (11) which rests against the emitter tube (2) on the outside. In order to specify, starting from here, an irradiation device having an infrared emitter with a long service life and potentially high output, which is also suitable for being enclosed by a seal which separates the regions of different media, temperatures or pressures, the invention proposes that the emitter-tube end (8) also has the round cross section and the prespecified external diameter and that a sealing means (13) is provided between the electrical connection element (4) and the emitter tube (2), which sealing means comprises at least one transition glass which has a coefficient of thermal expansion which lies between that of the metallic material and that of the high-silica glass.
Inventors:
LINOW SVEN (DE)
Application Number:
PCT/EP2011/005494
Publication Date:
July 26, 2012
Filing Date:
October 31, 2011
Export Citation:
Assignee:
HERAEUS NOBLELIGHT GMBH (DE)
LINOW SVEN (DE)
LINOW SVEN (DE)
International Classes:
H01K1/38; H01K3/20; H05B3/00; H05B3/44
Foreign References:
| DE102008063677A1 | 2010-07-08 | |||
| GB952939A | 1964-03-18 | |||
| JP2000182566A | 2000-06-30 | |||
| EP0629488A2 | 1994-12-21 | |||
| US6106628A | 2000-08-22 |
Attorney, Agent or Firm:
KÜHN, Hans-Christian (Bereich SchutzrechteHeraeusstrasse 12-14, Hanau, DE)
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