Solid state image capturing element, image capturing apparatus, and focusing control method

摘要

An image capturing element 5 has a phase difference detecting region 50a in a light receiving region 50 in which pixel cells are arranged, in the region 50a, some of pixel cells mounted with G filters, among the pixel cells which are arranged in a Bayer pattern, serve as phase difference detecting pixel cells 51R and 51L, the pixel cell 51L and the pixel cell 51R receive light which passes through different pupil areas of the image capturing lens 1, the pixel cell 51L includes two types of pixel cells (3) and (4) having different arrangement patterns of the adjacent pixel cells 51 and the pixel cell 51R includes two types of pixel cells (1) and (2) having different arrangement patterns of the adjacent pixel cells 51.

主权项

1. A solid state image capturing element comprising: a plurality of pixel cells, which are two-dimensionally arranged, each including only one photoelectric converting unit;
wherein each of the plurality of pixel cells has a color filter which is formed above the photoelectric converting unit, and light which is transmitted through the color filters and is separated to at least three different colors; the plurality of pixel cells includes a plurality of image capturing pixel cells which receives a pair of light fluxes which pass through different pupil areas of a photographing optical system which is disposed at a stage preceding the solid state image capturing element, a plurality of phase difference detecting pixel cells which receives one of the light fluxes, and a plurality of phase difference detecting pixel cells which receives the other one of the light fluxes; the plurality of phase difference detecting pixel cells which receives said one of the light fluxes is divided into two types of a first phase difference detecting pixel cell and a second phase difference detecting pixel cell which have different arrangement patterns of the pixel cells adjacent to the first and second phase difference detecting pixel cells; the plurality of phase difference detecting pixel cells which receives the other one of the light fluxes is divided into two types of a third phase difference detecting pixel cell and a fourth phase difference detecting pixel cell which have different arrangement patterns of the pixel cells adjacent to the third and fourth phase difference detecting pixel cells; the arrangement pattern of the pixel cells adjacent to the first phase difference detecting pixel cell is the same as the arrangement pattern of the pixel cells adjacent to the third phase difference detecting pixel cell; and the arrangement pattern of the pixel cells adjacent to the second phase difference detecting pixel cell is the same as the arrangement pattern of the pixel cells adjacent to the fourth phase difference detecting pixel cell.