VEHICLE LIGHTING TOOL UNIT

摘要

A rotary shade (36) is disposed behind a projection lens (34) to block a portion of light emitted from a light source (31). The rotary shade (36) has a twisted end surface (36d2) to form an edge projected as a peripheral edge of a light distribution pattern which changes position in relation to the rotation of the shade. The twisted end surface (36d2) is arranged so that the closer the twisted end surface is to the projection lens (34) the more the twisted end surface approaches the optical axis (A1). The twisted end surface (36d2) moves from the front to the back of a rear focal point (F) in relation to the rotation of the rotary shade (36) in the direction in which the illumination area of the light distribution pattern increases.