| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase a range within which a light receiving section can receive light. <P>SOLUTION: A groove 52 is formed at the upper face 51a of a transparent exterior part 51 on which signal light from a remote controller or a like apparatus is made incident, and the lower part of a light guiding part 54 is inserted into the groove 52. The groove 52 has a bottom face formed as an inclined face such that it has, in the forward and backward direction, a deep triangular shape having a depth which increases toward the front side, and in the leftward and rightward direction, has a side face on the front side thereof which is formed as an arcuately curved face which is convex toward the front side. The lower portion of the light guiding part 54 is shaped such that it has such a triangular shape, in the front-back direction, projecting downwardly more toward the front side, a lower face is formed as an inclined face, and a side face on the front side is shaped, in the horizontal direction, as an arcuately curved face convex toward the front side. <P>COPYRIGHT: (C)2009,JPO&INPIT |
