Patent ID: 7416314

Claim:
A discharge lamp lighting apparatus comprising a discharge lamp lighting circuit for lighting a discharge lamp, and a housing of synthetic resin, the housing having a base member and a cover member which form a cavity within which the discharge lamp lighting circuit is received, the base member comprising: a flat rectangular bottom plate and four side walls which extend perpendicularly from the bottom plate along each side of the bottom plate; at least a protruding portion which is provided on a part of a upper end of one of the side walls and is configured to protrude outward; a wire receiving portion which is provided on a surface of the protruding portion and is configured to communicate between an inside and an outside of the housing, and on which at least an electric wire, electrically connected to the discharge lamp lighting circuit, is received; and, a plurality of reinforcing ribs which extend between a surface of the protruding portion, other than the surface on which the wire receiving portion is provided, and an outer surface of the side wall on which the protruding portion is provided.