Method of enlarging horizontal viewing zone in integral imaging

We present a method of changing the ratio of a horizontal to vertical angles by rotating a lens array in integral imaging. We arranged an elemental image with a width and height that is not equal to the pitch of an elemental lens as the total number of the pixels of the elemental image is invariant. Additionally, we rotated the lens array to avoid overlapping the specially-shaped elemental images. We enlarged the horizontal viewing angle by arranging the elemental images with a width that is larger than height and the pitch of the elemental lens. We investigated the arrangement of these images and found that rotating the lens array changed the ratio of the horizontal to vertical viewing angles.