Patent ID: 7524094

Claim:
A lamp unit for a vehicle headlamp, comprising: a projection lens which is placed on an optical axis extending in a longitudinal direction of a vehicle; a light-emitting device which faces upward and is placed rearward of a rear focal point of said projection lens and in proximity to the optical axis; a reflector which covers said light-emitting device from an upper side, and which reflects light from said light-emitting device forward while shifting the light toward the optical axis; and a mirror member having an upward reflecting surface which upward reflects part of reflected light from said reflector, said mirror member being disposed between said reflector and said projection lens, wherein said mirror member is configured as a movable mirror member which is movable along the optical axis and able to take a reference position, where a front end edge of said upward reflecting surface of said mirror member is located in a vicinity of the rear focal point, and a front movement position, which is located a predetermined distance forward of the reference position, and when said mirror member is moved to the front movement position, part of reflected light from said reflector is passes through a space behind said mirror member so as to be incident on a lower region of said projection lens.