Canon Kabushiki Kaisha

Hyochoru Tanaka

Toshinori Yamazaki

Toshihiro Okuda

Shu Ito

Tadanori Okada

Toshihiro Ogawa

An optical apparatus capable of detecting an origin or the like even in a retracted state is provided. The optical apparatus includes a holding frame holding an optical system, an intermediate member, a driving unit moving the intermediate member in a direction along an optical axis of the optical system, a biasing member biasing the holding frame in a direction along the optical axis with respect to the intermediate member, and a detection unit detecting the intermediate member, and the optical apparatus also includes a first state in which a part of the holding frame is brought into contact with a part of the intermediate member according to a biasing force of the biasing member, and a second state in which the holding frame is separated from the intermediate member against the biasing force of the biasing member, in which the driving unit is able to move the intermediate member in a direction along the optical axis in either the first state or the second state, and the detection unit can detect the intermediate member at least in the second state.

Optical apparatus and camera system

An apparatus including: a system including a correction lens unit configured to move to correct an aberration; a driving device configured to move the correction lens unit; an image pickup element configured to pick up an image formed by the system; an obtaining device configured to obtain an aberration based on a picked up image, through use of a learned model obtained by learning an image and aberration data of the system; and a controller configured to control the driving device based on the aberration, to thereby correct the aberration.

Image forming apparatus storing scan data in external memory non-transitory recording medium storing control program, and control method

Provided is an aberration correction method including: picking up images of a particular object at a plurality of focus positions including an in-focus position of the particular object; obtaining an aberration information based on the picked up images; and correcting an aberration based on the aberration information.

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Tochigi, Japan

Hyochoru Tanaka