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US 2017/0374270 A1Published application
Focus detection apparatus and focus detection method
AssigneeOlympus Corporation
InventorsRyuhi OKUBO, Kazumi ITO
Life of this patent
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AssigneeOlympus Corporation
InventorsRyuhi OKUBO, Kazumi ITO
Estimating the term…
A focus detection apparatus, comprising, focus detection pixels that receive a pair of light fluxes resulting from pupil division of light flux, a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction relating to a two-image interval value, and a controller having a focus detection section, a light flux width calculation section, and a defocus amount calculation section, wherein the light flux width calculation section calculates the width of the imaging light flux in the pupil-division direction, and the defocus amount calculation section calculates defocus amount of the photographing optical system based on the two-image interval value, wherein the focus detection section detects a first two-image interval value and corrects the first two-image interval value based on the correction values and the width of the imaging light flux in the pupil-division direction to obtain a second two-image interval value.
A focus detection apparatus, comprising
A focus detection method for a focus detection apparatus for a photographing optical system that is provided with focus detection pixels that receive a pair of light fluxes resulting from pupil-division of light flux that passes through a photographing optical system, and a memory that stores correction values in accordance with width of the imaging light flux in the pupil-division direction of the photographing optical system, comprising
A non-transitory computer-readable medium storing a processor executable code, which when executed by at least one processor included in a focus detection apparatus, performs an focus detection method, the focus detection apparatus comprising focus detection pixels that receive a pair of light fluxes resulting from pupil-division of light flux that passes through a photographing optical system, and a memory that stores correction value in accordance with width of the imaging light flux in the pupil-division direction of the photographing optical system, the focus detection method comprising:
Dependencies are inferred from the claim text.