An infrared radiating lamp which dilutes the red light emitted from the front
lens of the lamp by causing a peripheral portion of the lens to emit white light
or causing a small amount of white light to pass through a generally central portion
of the lens so that the lamp will not be mistakenly recognized as a tail lamp or
a stop lamp. The lamp includes a lamp body, a lens attached to a front opening
portion of the lamp body and which cooperates with the lamp body to define a lamp
chamber, a reflector provided at an inner side of the lamp body, a light source
provided forward of the reflector, and an infrared transmitting film that reflects
a visible light component and transmits an infrared component. A region having
no infrared transmitting film is provided at an outer periphery of the infrared
transmitting film. Light from the light source that does not pass through the infrared
transmitting film is directed to the peripheral portion of the lens, so that the
peripheral portion around the region in the lens that emits red light emits white
light, thereby diluting the emission of red light. A similar effect can be obtained
by forming a plurality of pores in the infrared transmitting film.
