Patent ID: 8939623
Filing Date: 2015-01-27
Classification: B60Q,F21S,F21V

Abstract:
1. An optical system unit accommodated in a lamp chamber of a lamp for a vehicle, comprising: a first semiconductor light emitting device; a projection lens disposed in front of the first semiconductor light emitting device and configured to irradiate light incident from the rear side to the front side of the vehicle; a first reflector configured to reflect a part of the light emitted from the first semiconductor light emitting device to converge on the rear side of the projection lens; a second semiconductor light emitting device; a light guide member disposed across the front side of the projection lens and configured to emit the light incident from the second semiconductor light emitting device to a predetermined direction with an internal reflection so as not to disturb the light emitted from the first semiconductor light emitting device; and a second reflector configured to reflect a part of the light reflected by the first reflector toward the projection lens such that the reflected light by the second reflector is incident into the projection lens while avoiding the light guide member, wherein the light emitted from the first semiconductor light emitting device to be incident on the projection lens through the first reflector and the second reflector is emitted from the projection lens to the front side avoiding the light guide member.