| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a driving mechanism for the optical device, in which noise emitted from meshing portions of the gears is reduced. <P>SOLUTION: In the driving mechanism for the optical device, which transmits the power of a driving source to an object to a driven, by use of a plurality of the gears, the plurality of gears are made of at least polyester, polyamide, or polyacetal, and include: a first gear 12 having a bend elastic modulus equal to or higher than 10 kgf/mm<SP POS="POST">2</SP>but equal to or lower than 100 kgf/mm<SP POS="POST">2</SP>, and a second gear 13 engaged with the first gear and having a bend elastic modulus equal to or hither than 50 kgf/mm<SP POS="POST">2</SP>but equal to or lower than 1000 kgf/mm<SP POS="POST">2</SP>. <P>COPYRIGHT: (C)2012,JPO&INPIT |
