| 摘要 |
PROBLEM TO BE SOLVED: To provide a projection mechanism having high contrast, capable of improving contrast and illumination efficiency of a light pattern projected from the projection mechanism. SOLUTION: This projection mechanism includes a reflecting chamber having a first reflecting surface in the inside thereof, a reflector provided in the upper part of the open end of the reflecting chamber while having a second reflective surface, another reflector provided in the lower part of the open end of the reflecting chamber while having a third reflecting surface, and a lamp module which is provided in the inside of the reflecting chamber to generate a light source, and reflects light of the light source by the first reflecting surface, the second reflecting surface, and the third reflecting surface to project it outward. COPYRIGHT: (C)2011,JPO&INPIT |
