Discharge lamp

Details Discharge lamp Discharge lamp

H - Electricity

01

J

313/132

H01J 61/02 (2006.01) F21S 8/10 (2006.01) H01J 61/16 (2006.01) H01J 61/30 (2006.01) H01J 61/82 (2006.01) H01J 61/88 (2006.01)

Patent

CA 1201756

-9- ABSTRACT: "Gas discharge lamp". A gas discharge lamp according to the invention has an at least approximately rectilinear and contracted arc and a high efficiency even in a horizontal operating position. Consequently, the lamp is suitable for use, when arranged in a reflector, as a vehicle headlight lamp. The lamp comprises an ionisable filling of rare gas, mercury, and metal iodide, the quantity of mercury being dependent upon the inner diameter D of the lamp envelope (1), the distance d between the tips of the electrodes (2), and the distance l over which the electrodes project into the lamp envelope. The values of D, d, l and the wall thickness t of the lamp envelope lie within indicated limits. The lamp, which may be provided with a screen, may have a lamp cap or may be incorporated into a reflector with a front pane.

442415

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