IMAGE SENSOR

• Main Authors: MIYATANI YOSHITAKA, YAMAMURA TAKAYA
• Format: Patent
• Language: English; Japanese
• Published: 21.04.2016
• 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 improve focus detection accuracy while preventing deterioration of image quality of captured images.SOLUTION: An image sensor comprises a plurality of normal pixels that are arranged in a substantially matrix pattern to capture images, and a plurality of large defocus detection pixel pairs that are used when a defocus amount is larger than a preset value. One large defocus detection line having large defocus detection pixel pairs per predetermined number of lines is provided, each large defocus detection line having a plurality of large defocus detection pixel pairs configured as a plurality of exit-pupil-distance-specific large defocus detection pixel pairs that handle different exit pupil distances.SELECTED DRAWING: Figure 7 【課題】撮影画像の画質の劣化を防止しつつ、焦点検出精度を向上させる。【解決手段】撮像素子は、略マトリクス状に配置され、画像を取得するための複数の通常画素と、焦点のずれが所定値より大きい場合に利用される複数の大デフォーカス検出画素対とを備え、所定数のライン毎に大デフォーカス検出画素対が配置される大デフォーカス検出ラインが配置されるとともに、各大デフォーカス検出ラインにおいて、複数の大デフォーカス検出画素対は、互いに異なる射出瞳距離に対応した複数の射出瞳距離対応大デフォーカス検出画素対として構成されている。【選択図】図７