| 摘要 |
<p>PURPOSE: To improve variable light distribution performance by vertically dividing into two parts a reflector in a horizontal line upper from a center shaft of passing through a light source, so as to ensure front surface light by a fixed light distributing reflector also to ensure luminous energy in a turn direction by a movable light distributing reflector. CONSTITUTION: In a lighting fixture 1 of a variable light distribution headlamp device, this reflector 2 is vertically divided into two parts in a horizontal line placed in a position, for instance, 10 to 30mm upward from a center shaft X of passing through a light source 3. That is, the lower side is fixed to serve as a fixed light distributing reflector 21. On the other hand, the upper side is journalled by a turn shaft 22a so as to rotate with a vertical line Y, passing through the light source, serving as the center, and so as to serve as a movable light distributing reflector 22. By connecting the turn shaft 22a to a motor 5, controlled with a rotary angle by a potentiometer 5a, through a connecting mechanism 22b, the movable light distributing reflector 22 is given a prescribed rotary angle. In this way, front surface light is ensured by the fixed light distributing reflector 21, also to ensure luminous energy in a turn direction by the movable light distributing reflector 22.</p> |
