Millimeter wave radar-equipped headlamp

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.