| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To efficiently increase angular amplitude of the vibration of a reflection part while suppressing increase in the size of an entire optical scanner. <P>SOLUTION: The optical scanner 1 includes: a body part 11 in which a mirror face is formed on the surface; interdigital electrodes 14, 15 which are provided on the body part 11 and formed in a comb-teeth shape; interdigital electrodes 21, 22 which are meshed with the interdigital electrodes 14, 15 with a specific space apart; an interdigital driving parts 25, 26 for driving the interdigital electrodes 21, 22; and a holding part 3 for slidably holding the body part 11 and the interdigital electrodes 21, 22. By actuating the interdigital driving parts 25, 26, the interdigital electrodes 21, 22 can be vibrated relative to the holding part 3 with a prescribed frequency. As a result, the position of the interdigital electrodes 21, 22 can be changed, so that the two groups of interdigital electrodes, 14, 15 and 21, 22 are made opposite to each other depending on the positional change of the interdigital electrodes 14, 15 by the vibration of the body part 11. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
