Retractable photographic lens
AssigneePENTAX Corporation
InventorKazunori ISHIZUKA
Life of this patent
Estimating the term…
Abstract
A retractable photographic lens including a photographing optical system includes a plurality of optical elements including at least two radially-retractable optical elements; wherein the plurality of optical elements are aligned with an optical axis in an operating state of the retractable photographic lens. When the retractable photographic lens moves from the operating state to a fully retracted state, the two radially-retractable optical elements of the plurality of optical elements are radially retracted to respective radially retracted positions thereof away from the optical axis in different radial directions and moved rearward in the optical axis direction to be positioned adjacent to each other in a plane orthogonal to the optical axis.
Claims15
A retractable photographic lens including a photographing optical system comprising:
- a plurality of optical elements including at least two radially-retractable optical elements;
- wherein said plurality of optical elements are aligned with an optical axis in an operating state of said retractable photographic lens, and
- wherein, when said retractable photographic lens moves from said operating state to a fully retracted state, said two radially-retractable optical elements of said plurality of optical elements are radially retracted to respective radially retracted positions thereof away from said optical axis in different radial directions and moved rearward in said optical axis direction to be positioned adjacent to each other in a plane orthogonal to said optical axis.
A retractable photographic lens including a photographing optical system comprising:
- a plurality of optical elements aligned with an optical axis in an operating state of said retractable photographic lens,
- wherein, when said retractable photographic lens moves from said operating state to a fully retracted state, at least two radially-retractable optical elements of said plurality of optical elements are moved away from each other in directions orthogonal to said optical axis so that one of said two radially-retractable optical elements occupies a part of an area which is occupied by the other of said two radially-retractable optical elements if said other of said two radially-retractable optical elements were to be in said operating state of said retractable photographic lens as viewed from front of said retractable photographic lens, and moved rearward in said optical axis direction to be positioned adjacent to each other in a plane orthogonal to said optical axis.
Dependencies are inferred from the claim text.