Patent ID: 8094392

Claim:
A driving device for an optical component comprising: an operation ring to which a driving force from an operation member is transmitted; a driving ring to which a driving force from an actuator is transmitted; an output ring which transmits a driving force to an optical component; and a planetary roller which contacts with one end face of said operation ring and one end face of said driving ring, said planetary roller being rotatably attached to said output ring so as to selectively transmit the driving force from any one of said operation ring and said driving ring to said output ring; wherein a friction coefficient of a first face, which is a contact face of said operation ring with said planetary roller, is lower than a friction coefficient of a second face, which is a contact face of said driving ring with said planetary roller, said operation ring and said planetary rollers slip therebetween when the driving force is transmitted to said operation ring after said optical component reaches an end portion of a movable area, said first face of said operation ring consists of a lower friction member than a body portion of said operation ring, the member of said first face is a lubricating coating film, and a thickness of said lubricating coating film is 2 to 30 μm.