US Patent No. 9,953,824

LAMP COMPRISING A CONDUCTOR EMBEDDED IN THE QUARTZ GLASS ENVELOPE OF THE LAMP


Patent No. 9,953,824
Issue Date April 24, 2018
Title Lamp Comprising A Conductor Embedded In The Quartz Glass Envelope Of The Lamp
Inventorship Francis Martin Jozef Deprez, Kuringen (BE)
Jozef Merx, Vaals (NL)
Assignee Lumileds LLC, San Jose, CA (US)

Claim of US Patent No. 9,953,824

1. A lamp, comprising:an envelope of a quartz glass material defining a discharge space; and
an electric conductor that is at least partly embedded in the quartz glass material of the envelope, wherein the electric conductor comprises:
a surface;
one or more recesses in at least a portion of the surface of the electric conductor; and
flexible dendritic protrusions on the portion of the surface of the electric conductor at edges of the one or more recesses, the flexible dendritic protrusions forming a brush-like structure on the portion of the surface of the electric conductor, wherein an average material density of the brush-like structure is between 20% and 80% of a solid structure of the same material, thereby providing a mechanical flexibility and deformation potential that is substantially higher than that of the solid structure of the same material.