Imaging device for generating stereoscopic image

An imaging device comprising:

• a single photographing optical system;
• an image sensor having a plurality of phase-different pixels for obtaining a plurality of viewpoint images by photo-electrically converting a luminous flux passing through different regions of the photographing optical system;
• a shading correction part for conducting a shading correction to the plurality of viewpoint images, and the shading correction part varies the amount of shading correction based on light-reduction property for one viewpoint image among the plurality of viewpoint images with respect to the amount of shading correction based on light-reduction property for another viewpoint image among the plurality of viewpoint images;
• and
• a stereoscopic image generating part for generating a stereoscopic image from the plurality of viewpoint images,
• wherein the image sensor includes a plurality of photo diodes arranged as the plurality of pixels on a light-receiving surface, a plurality of micro lenses arranged to correspond to the plurality of photo diodes, and a light-blocking member disposed between the plurality of photo diodes and the plurality of micro lenses, and
• the light-blocking member divides the plurality of photo diodes into a plurality of pixel groups corresponding to the plurality of viewpoint images by blocking a part of the luminous flux reaching from an exit pupil of the photographing optical system to the micro lenses,
• wherein the light-blocking member varies a light shielding amount by the light-blocking member for one pixel group among the plurality of pixel groups with respect to the light shielding amount for the other pixel group among the plurality of pixel groups based on the light-reduction property of the plurality of viewpoint images, and
• wherein the light shielding amount for the one pixel group is smaller at one end in the pupil splitting direction of each luminous flux passing through different regions of the photographing optical system than that of the other end, and the light shielding amount for the other pixel group is larger at the one end in the pupil splitting direction than that of the other end.