Patent ID: 7188980

Claim:
A head light system comprising: a first bulb; a second bulb; a first fixed-side coupler attached to said first bulb; and a second fixed-side coupler attached to said second bulb; wherein said first fixed-side coupler and said second fixed-side coupler are so disposed that the attaching and detaching directions of a first movable-side coupler and a second movable-side coupler respectively attached to and detached from said first fixed-side coupler and said second fixed-side coupler are substantially perpendicular to the longitudinal direction of said first bulb and said second bulb and that said first fixed-side coupler and said second fixed-side coupler are located substantially in the same plane; said first fixed-side coupler is so disposed that said second fixed-side coupler is not located in the attaching and detaching direction of said first movable-side coupler attached to and detached from said first fixed-side coupler; and wherein an attaching and detaching direction of said second moveable-side coupler to and from said second fixed-side coupler is not located in an attaching and detaching direction of said first moveable-side coupler to and from said first fixed-side coupler.