Low-pressure mercury vapour discharge lamp.

摘要

The invention relates to a low-pressure mercury vapour discharge lamp having a tubular discharge vessel (1) which is sealed in a vacuum-tight manner, a filamentary body (7,8), consisting for example of glass wool, which is thinly distributed overthe volume of the discharge vessel being provided near the electrodes (2,3) to increase the radiance in those portions of the discharge vessel.