| 摘要 |
<P>PROBLEM TO BE SOLVED: To suppress the shake of the top end of a shutter blade. <P>SOLUTION: A shutter apparatus includes: a front curtain shutter blade and a rear curtain shutter blade; a front curtain driving part allowing the front curtain shutter blade to travel in one travel direction from a start position; a rear curtain driving part allowing the rear curtain shutter blade to travel in one travel direction from the start position after the start of the front curtain shutter blade; and a speed control part changing force acted on at least one of the front curtain shutter blade and the rear curtain shutter blade, to match the travel speed of one of the front curtain shutter blade and the rear curtain shutter blade with the other travel speed of the front curtain shutter blade and the rear curtain shutter blade, during the travel of the front curtain shutter blade and the rear curtain shutter blade. <P>COPYRIGHT: (C)2012,JPO&INPIT |
