Patent ID: 8585265

Claim:
A vehicle headlamp comprising: a lamp outer casing; a lamp unit disposed in the lamp outer casing and comprising: a light source unit comprising: a light source that emits light; a light source mounting portion on which the light source is disposed; a reflector that reflects the light emitted from the light source; and a heat sink that radiates heat generated from the light source, a stationary frame that is fixed in the lamp outer casing; a movable frame that is supported by the stationary frame so as to be rotatable about a rotating shaft in a lateral or vertical direction, a lens unit that is disposed in the lamp outer casing and supported by the movable frame, the lens unit comprising: a projection lens that projects the light emitted from the light source; and a lens holder that holds the projection lens, a first aiming operation shaft that moves the lens unit relative to the stationary frame so as to adjust an optical axis of the vehicle headlamp in the lateral direction; a second aiming operation shaft that moves the lens unit relative to the stationary frame so as to adjust the optical axis in the vertical direction, wherein a focal point of the light reflected by the reflector is coincident with a center of the rotating shaft of the movable frame, the lens unit is moved relative to the stationary frame such that a distance between the focal point and the projection lens is constant, and the light source unit is fixed to the lamp housing such that the heat sink is positioned on the outside of the lamp outer casing.