| 摘要 |
<P>PROBLEM TO BE SOLVED: To add a light-emitting function to a pointing device, in order to make it easy to find out a position of a non-self-light-emitting one even at night. <P>SOLUTION: In order to make light emitted on a targeted point more brightly for a light guide plate in the lighting apparatus equipped with the same as well as a light source 6, a plurality of through-holes 8 and recessed parts 16 are formed inside an emission region to control a light path and form two emission regions with different levels of luminance. Out of the two emission regions with different luminance thus formed, a region with larger luminance is to be arranged at an outer periphery part of the pointing device, so that a position of the pointing device can be easily identified even at night. <P>COPYRIGHT: (C)2013,JPO&INPIT |
