METHOD OF MANUFACTURING VEHICLE LAMP

摘要

PROBLEM TO BE SOLVED: To provide a laser welding method for reliably and efficiently welding and jointing a lens and a housing even when the lens has a three-dimensional design surface.SOLUTION: A transparent jig 50 has a function of applying relative pressure to a lens and a housing and a function of controlling a light path of laser beams irradiated on the welding portion of the pressured lens and the housing. The whole of one surface serves as a lens adhesion surface 51 having the same shape as the light emission surface of the lens. The other surface serves as a laser beam incident surface 52 on which the laser is made incident. The transparent jig 50 is formed to have an appropriate thickness in an appropriate portion so that a desired light guide path may be formed for the laser beams.