| 摘要 |
<p>PROBLEM TO BE SOLVED: To execute both of the switching of a picture displayed by a projector or the like and the pointing of displayed data or the like by only one device. SOLUTION: A laser beam output part 5 for outputting a laser beam for pointing out a projection part, a laser beam operation part 2 for operating the output of a laser beam, a command output part 4 for modulating a command to be outputted to a computer and outputting the modulated command, and a command operation part 3 for operating a command are stored in a package 18.</p> |
