Solid-state image sensing element and image sensing apparatus for detecting a focus state of a photographing lens

An image sensing element that outputs signals of images for performing a correlation calculation to detect a focus state of a photographing lens, the image sensing element comprising:

• a first pixel line configured to include a first plurality of focus state detection pixels, each of the first plurality of focus state detection pixels having a separate aperture shifted by a first amount from a center of each pixel, arranged in a direction of the shift;
• a second pixel line configured to include a second plurality of focus state detection pixels, each of the second plurality of focus state detection pixels having a separate aperture shifted by a second amount in each pixel with respect to a position, in each pixel, of the aperture of a corresponding one of the first plurality of focus state detection pixels, arranged in the direction of the shift;
• a third pixel line configured to include a third plurality of focus state detection pixels, each of the third plurality of focus state detection pixels having a separate aperture shifted by a third amount in each pixel with respect to the position, in each pixel, of the aperture of a corresponding one of the first plurality of focus state detection pixels, arranged in the direction of the shift;
• and
• a fourth pixel line configured to include a fourth plurality of focus state detection pixels, each of the fourth plurality of focus state detection pixels having a separate aperture shifted by a fourth amount in each pixel with respect to a position, in each pixel, of the aperture of a corresponding one of the second plurality of focus state detection pixels, arranged in the direction of the shift,
• wherein the first plurality of focus state detection pixels and the second plurality of focus state detection pixels form images, respectively, which are used for the correlation calculation,
• wherein the third plurality of focus state detection pixels and the fourth plurality of focus state detection pixels form images, respectively, which are used for the correlation calculation, and
• wherein the first, second, and third amounts, or the first, second, and fourth amounts are different from one another.