A lighting assembly for an interior rearview mirror assembly of a vehicle includes an illumination source, a reflective element and a lens. The illumination source is operable to radiate radiation including visible radiation and infrared radiation. The radiation from the illumination source impinges on the reflective element. The reflective element reflects reflected radiation toward the lens. The reflective element is adapted to at least partially transmit the infrared radiation so that reduced reflection of the infrared radiation occurs toward the lens. The lens may include an optical element which functions to substantially transmit the visible radiation through the optical element and the lens while at least partially reflecting the infrared radiation generally away from the lens.