Lens apparatus and imaging apparatus including the same
AssigneeCanon Kabushiki Kaisha
InventorTakehiko Sato
Life of this patent
Estimating the term…
Abstract
A lens apparatus includes a base member including a rectilinear guide groove portion, a cam barrel including a cam groove portion, a lens holding member provided with a roller member inserted into the rectilinear guide groove portion and the cam groove portion and configured to support a lens unit, a first light amount adjustment unit, a biasing member configured to bias the roller member to the cam groove portion, and a pressing member provided between the first light amount adjustment unit and the lens holding member and configured to press the biasing member, wherein the first light amount adjustment unit includes a rotation regulating portion configured to regulate rotation of the pressing member around an optical axis of the lens unit.
Claims7
A lens apparatus comprising:
- a base member including a rectilinear guide groove portion;
- a cam barrel including a cam groove portion;
- a lens holding member provided with a roller member inserted into the rectilinear guide groove portion and the cam groove portion and configured to support a lens unit;
- a first light amount adjustment unit;
- a biasing member configured to bias the roller member to the cam groove portion;
- and
- a pressing member provided between the first light amount adjustment unit and the lens holding member and configured to press the biasing member,
- wherein the first light amount adjustment unit includes a rotation regulating portion configured to regulate rotation of the pressing member around an optical axis of the lens unit.
An imaging apparatus comprising:
- a lens apparatus;
- and
- a camera body configured to hold an image sensor that receives light from the lens apparatus,
- wherein the lens apparatus includes:
- a base member including a rectilinear guide groove portion;
- a cam barrel including a cam groove portion;
- a lens holding member provided with a roller member inserted into the rectilinear guide groove portion and the cam groove portion and configured to support a lens unit;
- a first light amount adjustment unit;
- a biasing member configured to bias the roller member to the cam groove portion;
- and
- a pressing member provided between the first light amount adjustment unit and the lens holding member and configured to press the biasing member, and
- wherein the first light amount adjustment unit includes a rotation regulating portion for regulating rotation of the pressing member around an optical axis of the lens unit.
Dependencies are inferred from the claim text.