Nikon filed patents (P2018-72638A, P201872640A) for a 20mm f/2 full-frame lens designed for a curved image sensor:
- Focal length: 20mm
- Aperture: 2.0
- Image height: 21.1 mm
- Half angle of view: 53.6
Nikon filed a patent (P2018-67965A) for a stacked BSI image sensor with dual shutter mode: rolling for low-noise and global for less distortion.