Solid-state imaging device having microlenses

Claim 1

A solid-state imaging device comprising: a plurality of photosensitive elements for converting light into electric charge, said plurality of photosensitive elements being arranged in a matrix form along a first direction and a second direction, wherein a pitch of said photosensitive elements in said first direction is different from a pitch of said photosensitive elements in said second direction; a plurality of first charge transfer portions for transferring said electric charge converted in each of said plurality of photosensitive elements in a first direction, said plurality of first charge transfer portions being formed between said plurality of photosensitive elements along said first direction; a second charge transfer portion for receiving said electric charge from said plurality of first charge transfer portions and for transferring said electric charge in a second direction, said second charge transfer portion being provided at an end of each of said plurality of first charge transfer portions; a plurality of light converging portions for converging said light on each of said plurality of photosensitive elements, said plurality of light converging portions being formed over said plurality of photosensitive elements, respectively, wherein said light converging portion and light converging portions adjacent thereto are in contact with each other, in a direction corresponding to the direction of the shortest pitch of said photosensitive elements, and are not in contact with each other in a direction corresponding to the direction of the longest pitch of said photosensitive elements; and wherein said plurality of light converging portions are microlenses, each of said microlenses having substantially the same curvatures in said first and second directions.