Title: Electric lamp having a coloured lamp vessel
Application Number: 86100621 Application Date: 1986.02.01
Publication Number: 1002056 Publication Date: 1986.07.30
Approval Pub. Date: 1990.05.02 Granted Pub. Date: 1990.05.02
International Classifi-cation: H01K1/32
Applicant(s) Name: N.L. Philips Address:
Inventor(s) Name: Prozel Christiaan
Attorney & Agent: LI XIANCHUN KUANG SHAOBO
Abstract:
    An electric lamp having an electrostatically applied powder layer (2) on the wall of the lamp vessel (1) according to the invention contains MgO as an addition to this powder layer. The addition prevents discolouring of Cd-containing pigments in the powder layer and in the case of incandescent lamps results in lengthening of the life.
Time: 17