Dielectric layer for discharge lamps, and associated...

H - Electricity – 01 – J

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H01J 65/04 (2006.01) H01J 9/20 (2006.01)

Patent

CA 2335332

The invention relates to a printing method for applying dielectric layers made of solder glass on strip-shaped metal electrodes of discharge lamps, which are operated by means of pulsed dielectrically inhibited discharge. An aggregate having a higher melting temperature than solder glass, e.g. crystalline or amorphous aluminum oxide or quartz glass powder, is used as printing paste in said method. The typical percentage by weight of the aggregate is between 2 and 30 %. Better wetting of the strip-shaped metal electrode is thus obtained.

L'invention concerne un procédé d'application, selon une technique d'impression, de couches diélectriques constituées de verre de soudure sur des électrodes métalliques, en forme de bande, de lampes à décharge qui sont excitées de manière pulsée au moyen d'une décharge diélectriquement inhibée. Selon ledit procédé, on utilise, pour la pâte d'impression, un granulé dont la température de fusion est supérieure à celle du verre de soudure, par exemple de l'oxyde d'aluminium cristallin ou amorphe ou de la poudre de verre quartzeux. La proportion en poids usuelle dudit granulé est comprise dans la plage 2-30 %. On obtient ainsi un meilleur mouillage des électrodes métalliques en forme de bande.

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