Patent ID: 8632228

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 first rotating shaft extending in a lateral direction or a second rotating shaft extending in a vertical direction, a lens unit that is disposed in the lamp outer casing and supported by the movable frame so as to be movable in the lateral or vertical direction, 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 movable frame in the lateral or vertical direction so as to adjust an optical axis of the vehicle headlamp, and a second aiming operation shaft that rotates the movable frame and the lens unit relative to the stationary frame about the first or second rotating shaft so as to adjust the optical axis, wherein a focal point of the light reflected by the reflector is coincident with a center of the first or second rotating shaft, the lens unit is rotated about the first or second rotating shaft 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.