Patent ID: 6190029
Filing Date: 2001-02-20
Classification: F21S

Abstract:
A headlamp having a light source and a beam distribution switch mechanism for selecting a low beam distribution or a high beam distribution, wherein the beam distribution switch mechanism comprisesa hood including a fixed member having a cut portion on the upper or the lower side of the fixed member and a moving member movable for opening and closing the cut portion of the fixed member,a reflecting mirror including a first reflecting surface positioned for reflecting light beams from the light source when the cut portion of the hood is closed by the moving member so as to generate the low beam distribution, and a second reflecting surface for reflecting the light beams passing through the cut portion from the light source when the cut portion is opened by moving the moving member so as to generate an auxiliary beam distribution that is added to the low beam distribution to generate the high beam distribution,the fixed member is formed in a box shape having an opening on the rear side, the moving member is a platy member disposed in parallel to and pivoted to the side of the fixed member that has the cut portion by a pivot shaft, and the cut portion is opened or closed by rotating the moving member on the pivot shaft.