Leveling of vehicle light type headlamp for motor vehicle, has electromagnet that is excited when heating of LED is detected so as to displace incidence point of solar rays on blade to point different from focal spot where blade is placed

摘要

#CMT# #/CMT# The headlamp has a functional block for detecting the focus of solar rays and triggering a protection unit. A folding blade (18) and LED (3) are respectively placed at focal spots (F`, F). The blade is mounted on an adjustable core (19) of an electromagnet (20). The electromagnet is excited when heating of the LED is detected so as to displace incidence point (I) of solar rays on the blade to a point different from the focal spot (F`) such that solar rays follow an optical path (R2`) different from that of an optical path (R2). #CMT#USE : #/CMT# Used for a motor vehicle (claimed). #CMT#ADVANTAGE : #/CMT# The displacement of the incidence point of solar rays on the folding blade to a point different from focal spot where the blade is placed permits to protect the LED from destruction caused by the solar light. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic view of a headlamp comprising a folding plate in diode protection position. F, F` : Focal spots I : Incidence point R2, R2` : Optical paths 3 : LED 4 : Elliptical mirror 18 : Folding blade 19 : Adjustable code 20 : Electromagnet.