Optical system and apparatus having the same
AssigneeCanon Kabushiki Kaisha
InventorYUKI MATSUBA
Life of this patent
Estimating the term…
Abstract
An optical system configured to perform tilt image-capturing includes an object-side lens unit, a first lens unit having a positive refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power which are arranged in order from an object side. The first lens unit and the third lens unit move in a direction including a component of a direction perpendicular to an optical axis for tilt image-capturing. The object-side lens unit and the second lens unit do not move in a direction including a component of a direction perpendicular to the optical axis for tilt image-capturing.
Claims20
An optical system configured to perform tilt image-capturing, the optical system comprising:
- an object-side lens unit, a first lens unit having a positive refractive power, a second lens unit having a positive refractive power, and a third lens unit having a negative refractive power which are arranged in order from an object side,
- wherein the first lens unit and the third lens unit move in a direction including a component of a direction perpendicular to an optical axis for tilt image-capturing,
- wherein the object-side lens unit comprises one or more positive lenses, and
- wherein the object-side lens unit and the second lens unit do not move in a direction including a component of a direction perpendicular to the optical axis for tilt image-capturing.
Dependencies are inferred from the claim text.