IMAGE-CAPTURING DEVICE, IMAGE-CAPTURING SYSTEM, METHOD FOR CONTROLLING IMAGE-CAPTURING DEVICE, PROGRAM, AND RECORDING MEDIUM

• Main Author: IWASAKI NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 02.03.2015
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide an image-capturing device capable of highly accurate focus control.SOLUTION: The image-capturing device has an image-capturing element for photoelectrically converting an optical image obtained via a focus lens, focal point detection means for detecting, while being set to a first diaphragm value, a focal point on the basis of an image signal from the image-capturing element, and control means for controlling a focus position on the basis of a focal point detection signal from the focal point detection means. If a second diaphragm value which is set at photographing time differs from the first diaphragm value, the control means changes the focus position in accordance with a photographing condition and a change from the first diaphragm value to the second diaphragm value. 【課題】高精度なフォーカス制御が可能な撮像装置を提供する。【解決手段】撮像装置は、フォーカスレンズを介して得られた光学像を光電変換する撮像素子と、第１の絞り値に設定された状態で、撮像素子からの画像信号に基づいて焦点検出を行う焦点検出手段と、焦点検出手段からの焦点検出信号に基づいてフォーカス位置を制御する制御手段とを有し、制御手段は、撮影の際に設定される第２の絞り値が第１の絞り値と異なる場合、撮影条件および第１の絞り値から第２の絞り値への変化に応じてフォーカス位置を変更する。【選択図】図２