Bildaufnahmevorrichtung und Steuerungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP2515525

Aktenzeichen

EP12164899

Anmeldetag

20. April 2012

Veröffentlichung

22. Mai 2013

Rechtsraum

EP

IPC

H04N5/232

Abstract

The image pickup apparatus electrically converts an object image to produce an image signal and includes a first detector (8, 20, 26) detecting a first in-focus position by a phase difference detection method, a second detector (21) detecting a second in-focus position by a contrast detection method using the image signal, and a corrector (20) correcting, based on a difference between the first and second in-focus positions, the first in-focus position for image pickup. A controller (20) instructs the optical apparatus to move the focus lens by a predetermined movement amount when the second in-focus position is detected, receives, from the optical apparatus, information on an actual movement amount of the focus lens in response to the instruction, and instructs again the optical apparatus to move the focus lens with change of the predetermined movement amount when a difference between the predetermined and actual movement amounts exceeds a predetermined value.

Anmelder

Firma

Canon Kabushiki Kaisha

Land

🇯🇵 Japan

Fachgebiete