| 摘要 |
A retractable photographic lens includes a moving ring; a holding frame which holds a retractable optical element and is movable between a photographing position and a displaced position displaced from the photographing position; and a driving device which moves the holding frame from the photographing position to the displaced position using a rearward moving force of the moving ring when the retractable photographic lens moves from a operating state to a fully-retracted state. The driving device includes first and second driving devices which give the holding frame first and second amounts of retractive movement per unit of movement of the moving ring, respectively. When the retractable photographic lens moves from the operating state to the fully-retracted state, the first driving device firstly moves the holding frame toward the displaced position and subsequently the second driving device moves the holding frame to the displaced position.
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