Method for manufacturing a lamp

H - Electricity – 01 – J

Patent

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Details

H01J 9/00 (2006.01) H01J 9/24 (2006.01) H01J 9/40 (2006.01)

Patent

CA 2360427

In the method for manufacturing a lamp, the lamp vessel (1) is inserted gastightly with the open end (5) into a pumping head (2) with a holder (6) which bears a sealing plate (7) with an electrode system and connecting pins (10). The sealing plate (7) has here an external contour which is a little smaller than the internal contour of the open end (5) of the lamp vessel (1), so that the lamp vessel (1) can be pumped and filled with gases via the pumping head (2). The edge of the sealing plate (7) and the lamp vessel (1) are subsequently heated so that the lamp vessel (1) buckles in at the level of the sealing plate (7) and connects gastightly to the edge of the sealing plate (7). The protruding end (5) of the lamp vessel (1) is then cut off.

La présente invention concerne un procédé de fabrication d'une lampe. Selon ce procédé, le tube de lampe (1) présentant l'extrémité ouverte (5) est monté étanche aux gaz, dans une tête de pompe (2), avec un support (6) qui porte une plaque de fermeture (7) pourvue d'un système d'électrodes et de pointes de raccordement (10). La plaque de fermeture (7) présente un contour extérieur qui est un peu plus petit que le contour intérieur de l'extrémité ouverte (5) du tube de lampe (1), de façon que le tube de lampe (1) peut être pompé par l'intermédiaire de la tête de pompe (2) et être rempli de gaz. Le bord de la plaque de fermeture (7) et le tube de lampe (1) sont alors chauffés, de façon que le tube de lampe (1) vienne à la hauteur de la plaque de fermeture (7) et se connecte, de façon étanche aux gaz, au bord de la plaque de fermeture (7). Ensuite, l'extrémité (5) du tube de lampe (1) qui fait saillie est séparée.

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