A method for prolonging the life of a gas discharge lamp

H - Electricity – 01 – J

Patent

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H01J 61/52 (2006.01)

Patent

CA 2312895

A method for increasing the useful life of a gas discharge lamp having an envelope (1) comprising quartz or a high silica content glass and a neon gas fill, includes placing a heat sink (3) in thermal contact with the envelope (1) in use, thereby reducing diffusion of the neon gas through the envelope. Additionally, an optional flexible or resilient thermally conductive layer (9) may be placed between the heat sink (3) and the envelope (1) such that it is in thermal contact with both the heat sink and the envelope, thereby improving the uniformity of heat flow.

La présente invention concerne un procédé destiné à prolonger la vie utile d'une lampe à décharge gazeuse constituée d'une ampoule (1) remplie de néon. L'ampoule (1) est faite en quartz ou en verre à forte teneur en silice. En l'occurrence, le procédé consiste à utiliser un puits thermique (3) en contact thermique avec l'ampoule (1) de façon à réduire la diffusion du néon au travers de l'ampoule. On peut compléter le dispositif en disposant une couche thermoconductrice (9) souple ou élastique entre le puits thermique (3) et l'ampoule (1) de façon à être en contact thermique tant avec le puits thermique que l'enveloppe, conférant ainsi une meilleure uniformité aux flux thermiques.

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