US Patent No. 10,443,804

VEHICLE HEADLIGHT WITH TWO FILAMENTS AND MOUNTING OF SUCH A LAMP WITHIN A REFLECTOR


Patent No. 10,443,804
Issue Date October 15, 2019
Title Vehicle Headlight With Two Filaments And Mounting Of Such A Lamp Within A Reflector
Inventorship Lukas Kuepper, Aachen (DE)
Bernd Schoenfelder, Aachen (DE)
Kang Lu, Shanghai (CN)
Ping Wu, Shanghai (CN)
Assignee LUMILEDS LLC, San Jose, CA (US)

Claim of US Patent No. 10,443,804

1. A headlight for a vehicle, comprising:a concave reflector and a lamp arranged within the aid reflector to reflect light from the lamp to create an illumination beam with a bright/dark boundary,
the lamp comprising
a transparent vessel including a longitudinal axis,
at least a first and a second filament arranged within the vessel,
a baffle arranged proximate to the first filament, characterized by
the baffle comprising first and second upper side edges, the first filament being arranged above a first plane including the upper side edges,
wherein in a second plane through a center of the first filament, the second plane being arranged perpendicular to the longitudinal axis, the upper side edges are arranged symmetrically to a baffle symmetry axis extending from the center of the first filament centrally between the upper side edges,
the lamp being arranged within the reflector rotated around the longitudinal axis by a rotation angle of 2°-20°.