Patent ID: 6571060
Filing Date: 2003-05-27
Classification: G03B,Y10T

Abstract:
A driving mechanism of an optical device that communicates a driving force generated at a drive source to an object to be driven, comprising, at least;a gear having a low bending elastic modulus set within the range of 10 kgf/mm2-100 kgf/mm2, that is constituted by using at least one of; polyester, polyamide and polyacetals; and a gear having a high bending elastic modulus set within a range of 50 kgf/mm2-1000 kgf/mm2, that is constituted by using at least one of; polyester, polyamide and polyacetals, wherein; said gear having the low bending elastic modulus and said gear having the high bending elastic modulus mesh with each other while the bending elastic modulus of said gear having the high bending elastic modulus is higher than that of said gear having the low bending elastic modulus, and either of said gear having the low bending elastic modulus and said gear having the high bending elastic modulus meshes with the gear that rotates at the highest speed among a plurality of gears in said driving mechanism.