Northlight Images has uncovered another Canon patent relating to curved sensors.
Japanese patent application 2017-084874:
Generating of a gap of the focal position by a curvature of field, etc. are prevented, and the present invention inhibits the voltage change of the imaging signal which occurs because the impedance of each bump differs, and an object of the present invention is to provide a reliable solid state imaging device which can prevent degradation of image quality, and a manufacturing method for the same.
One of the difficulties is evening out the stresses caused by connecting the curved sensor to a flat substrate, as well as the variation in electrical properties.
So while the ideas keep coming, it doesn't necessarily mean it will end up in a consumer product.