Photographing lens
AssigneePENTAX Corporation
InventorHiroshi Nomura
Life of this patent
Estimating the term…
Abstract
A lens barrel includes a housing having a ring portion surrounding an optical axis; a first optical element and a second optical element which are positioned inside the ring portion and which are movable along the optical axis relative to the housing; a support frame which supports the second optical element, and has at least one arm portion which projects radially outwards to such an extent that an outer end of the arm portion is positioned radially outside the ring portion of the housing; and at least one guide shaft positioned radially outside the ring portion, and configured to guide the arm portion in the optical axis direction.
Claims28
A lens barrel comprising:
- a housing having a ring portion surrounding an optical axis;
- a first optical element and a second optical element which are positioned inside said ring portion and which are movable along said optical axis relative to said housing;
- a support frame which supports said second optical element, and has at least one radial arm portion which projects radially outwards to such an extent that an outer end of said arm portion is positioned radially outside said ring portion of said housing;
- and
- at least one guide shaft positioned radially outside said ring portion, and configured to guide said arm portion in said optical axis direction.
A digital camera comprising:
- a body;
- an image pick-up device disposed within the body;
- a housing disposed within said body and having a ring portion surrounding an optical axis;
- a first optical element and a second optical element which are positioned inside said ring portion and which are movable along said optical axis relative to said housing;
- a support frame which supports said second optical element, and has at least one arm portion which projects radially outwards to such an extent that an outer end of said arm portion is positioned radially outside said ring portion of said housing;
- and
- at least one guide shaft positioned radially outside said ring portion, and configured to guide said arm portion in said optical axis direction.
Dependencies are inferred from the claim text.