Patent ID: 7527438

Claim:
A retractable photographic lens comprising: an optical-axis-direction moving ring which moves rearward along an optical axis of a photographing optical system when said retractable photographic lens moves from an operating state to a fully-retracted state; a retractable-optical-element holding frame which holds a retractable optical element of said photographing optical system, said retractable-optical-element holding frame being positioned inside said optical-axis-direction moving ring and supported thereby to be movable between a photographing position at which said retractable optical element is aligned with said optical axis and a displaced position at which said retractable optical element is displaced from said photographing position; and a lens-element-retracting driving device which moves said retractable-optical-element holding frame from said photographing position to said displaced position using a rearward moving force of said optical-axis-direction moving ring when said retractable photographic lens moves from said operating state to said fully-retracted state, wherein said lens-element-retracting driving device includes a first lens-element-retracting driving device which gives said retractable-optical-element holding frame a first amount of retractive movement per unit of movement of said optical-axis-direction moving ring, and a second lens-element-retracting driving device which gives said retractable-optical-element holding frame a second amount of retractive movement per unit of movement of said optical-axis-direction moving ring, said second amount of retractive movement being smaller than said first amount of retractive movement, and wherein, when said retractable photographic lens moves from said operating state to said fully-retracted state, said first lens-element-retracting driving device firstly moves said retractable-optical-element holding frame toward said displaced position and subsequently said second lens-element-retracting driving device moves said retractable-optical-element holding frame to said displaced position.