Patent ID: 8803728

Claim:
A millimeter wave radar-equipped headlamp comprising: a millimeter wave radar that detects an object ahead of a vehicle, wherein the millimeter wave radar comprises an antenna module; and a lighting device unit that irradiates an area ahead of the vehicle, wherein the lighting device unit incorporates the antenna module, wherein the lighting device unit comprises: a projection lens located on an optical axis extending in a longitudinal direction of the vehicle; a light source that emits light located behind a rear focal point of the projection lens; a reflector that reflects the light emitted from the light source toward the projection lens; and a shade that partially blocks the light reflected by the reflector, wherein an upper edge of the shade is located in the vicinity of the optical axis, wherein the antenna module comprises: a millimeter wave waveguide located below the optical axis and in the vicinity of the front of the shade; and a millimeter wave reflection mirror located between an opening of the millimeter wave waveguide and the shade, wherein a reflection surface of the millimeter wave reflection mirror is formed by a spheroidal surface having a first focal point located in a vicinity of the opening of the millimeter wave waveguide, and a second focal point located forward of the rear focal point, and millimeter waves emitted from the opening of the millimeter wave waveguide is reflected by the reflection surface and emitted through the projection lens.