Low-pressure mercury vapour discharge lamp

Details Low-pressure mercury vapour discharge lamp Low-pressure mercury vapour discharge lamp

H - Electricity

01

J

313/138, 313/80

H01J 61/16 (2006.01) H01J 61/20 (2006.01) H01J 61/70 (2006.01)

Patent

CA 1141419

PHN. 9289. ABSTRACT: Low-pressure mercury vapour discharge lamp having a discharge vessel containing as the buffer gas a rare gas mixture which is rich in helium, but which also comprises a quantity of one or more heavier gases, preferably krypton, said gas mixture comprising for example 75% by volume of helium and 25% by volume of krypton, so that a relatively short lamp with a high luminous flux is obtained, which lamp can be operated with such a current strength, that the power consumed by the stabilisation ballast is relatively low, so that the volume and the weight of said ballast are relatively small.

339919

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