Patent ID: 7370997

Claim:
A lighting unit comprising: a light emitting unit facing forward with respect to an optical axis in a longitudinal direction of the lighting unit; a first light transmitting member on a forward side of the light emitting unit, said first light transmitting member having a front surface comprising a rotating elliptical surface with the optical axis as a central axis, and a rear end face passing through a first focal point on a rear side of the rotating elliptical surface; and a second light transmitting member having an outer peripheral surface that surrounds a light emitting port ion of the light emitting unit substantially cylindrically and internally reflects a light emitted from the light emitting portion and a front end face, for forward emitting the light from the light emitting portion and reflected internally by the outer peripheral surface, wherein the second light transmitting member is between the first light transmitting member and the light emitting unit such that the front end face of the second light transmitting member contacts the rear end face of the first light transmitting member.