MERCURY FREE LAMP WITH COLD HOLLOW CATHODES WITH FLUORESCENCE LUMINESCENCE FOR COLORED DECORATIVE LIGHTING OR LUMINOUS SIGNS

摘要

P The invention relates to a mercury-free lamp with activated cold hollow cathodes (4) comprising a tubular hollow body (2) made of glass the interior of which is covered with a fluorescent powder, which has at its two ends electrodes with activated cold hollow cathodes (4) which is filled with a mixture of rare gases, characterized in that the mixture of rare gases contains from 90% to 99% of neon and up to 1% of a rare gas or a mixture of rare blocking or complement gases, the remainder consisting of xenon, and the activated cold hollow cathodes (4) have an active layer (6) comprising barium fluoride (BaF2) or a compound containing an element from group III B of the Periodic Table of Elements. Application: decorative colored lighting and illuminated signs. /P