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US 11,960,077 B2Granted
Optical apparatus
AssigneeCanon Kabushiki Kaisha
InventorYuma Kobayashi
Life of this patent
Estimating the term…
Abstract
An apparatus includes a system having an element capable of changing a radius at which a normalized transmittance becomes 0.25 by 20% or more of a maximum effective radius and a stop capable of changing an aperture radius, and a control unit for controlling a transmittance distribution of the element and the aperture radius.
Claims19
An apparatus comprising:
- a system including an element capable of changing a radius at which a normalized transmittance becomes 0.25 by 20% or more of a maximum effective radius, and a stop capable of changing an aperture radius;
- and
- a control unit configured to control a transmittance distribution of the element and the aperture radius based on a radius and a transmittance distribution of an exit pupil of the system.
An image pickup apparatus comprising:
- an apparatus including:
- a system including an element capable of changing a radius at which a normalized transmittance becomes 0.25 by 20% or more of a maximum effective radius, and a stop capable of changing an aperture radius based on a radius and a transmittance distribution of an exit pupil of the system;
- and
- a control unit configured to control a transmittance distribution of the element and the aperture radius;
- and
- an image pickup element configured to receive light of an image formed by the apparatus.
3 more elements
Dependencies are inferred from the claim text.