US 9,812,473 B2
Image sensor and image capturing apparatus
Yoshiaki Miyamoto, Tama (JP); and Satoshi Suzuki, Tokyo (JP)
Assigned to Canon Kabushiki Kaisha, Tokyo (JP)
Filed by CANON KABUSHIKI KAISHA, Tokyo (JP)
Filed on Mar. 24, 2016, as Appl. No. 15/79,741.
Claims priority of application No. 2015-077142 (JP), filed on Apr. 3, 2015.
Prior Publication US 2016/0293646 A1, Oct. 6, 2016
Int. Cl. H01L 31/0232 (2014.01); H01L 27/146 (2006.01); H04N 5/357 (2011.01); H04N 5/361 (2011.01)
CPC H01L 27/14607 (2013.01) [H01L 27/14601 (2013.01); H01L 27/14625 (2013.01); H04N 5/3572 (2013.01); H04N 5/361 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An image sensor comprising:
an image sensing plane that receives light from a subject whose image has been formed by a lens,
wherein the image sensing plane has a central flat planar portion and a peripheral curved shape portion,
wherein the central flat planar portion is arranged in a region of the image sensing plane which is less influenced by field curvature aberration of the lens and the peripheral curved shape portion is arranged in a region of the image sensing plane which is more influenced by field curvature aberration of the lens, and
wherein the central flat planar portion enables a thickness of the image sensor to be reduced, and the curved shape suppresses decrease in light at the peripheral curved shape portion.