| 摘要 |
A driving device for an optical device comprising: an operation ring (3) to which a driving force from an operation member (4) is transmitted; a driving ring (9) to which a driving force from an actuator (20) is transmitted; an output ring (5) which transmits a driving force to an optical component (8a); and a planetary roller (6) which slides on one end face (3b) of said operation ring (3) and one end face (9b) of said driving ring (9), said planetary roller (6) being rotatably attached to said output ring (5) so as to selectively transmit the driving force from any one of said operation ring (3) and said driving ring (9) to said output ring (5). A sliding face (3b) of said operation ring (3) with said planetary roller (6) consists of a lower friction member than the operation ring body.
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