Filament lamp i.e. halogen filament lamp, for use in vehicle headlight, has spiral-wound filament fixed over quartz glass holding element, where holding element is partly dyed by adding additives into glass melt

摘要

#CMT# #/CMT# The lamp has a spiral-wound filament (4) fixed over a quartz glass holding element, where the holding element is partly dyed by adding additives into glass melt. The additives comprises polyvalent ions, iron ions, gold ions, vanadium ions, titanium-ions, nickel ions, copper ions and cobalt ions, where the additives are added to achieve coloring of the quartz glass retaining element. The spiral-wound filament produces a high beam. A lamp cap dome (9) turned away from a lamp cap (8) is provided with an opaque coating (10). #CMT# : #/CMT# An independent claim is also included for a method for manufacturing a filament lamp. #CMT#USE : #/CMT# Filament lamp i.e. halogen filament lamp, for use in a vehicle headlight. #CMT#ADVANTAGE : #/CMT# The design of the lamp avoids color temperature from being affected and enables the dyed quartz glass retaining element to be used as mark characteristics, thus protecting the lamp from product piracy. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a side view of a vehicle headlight with quartz glass holding element. 2 : Cylindrical lamp container 4, 6 : Spiral-wound filaments 8 : Lamp cap 9 : Lamp cap dome 10 : Opaque coating 14 : Power supply wire.