According to the Egami Blog, Canon has submitted a patent for a curved sensor designed to reduce peripheral darkening of the image (vignetting).
Patent Details
- Patent Publication No. 2016-197663
- Published 2016.11.24
- Filing date 2015.4.3
- The central portion of the light falloff is not noticeable to the flat shape
- The periphery light falloff is noticeable a curved shape