This is Sony’s new curved sensor

New-Sony-curved-sensor
IEEE published a picture of Sony's first curved sensor. The upcoming Sony RX2 full frame camera is rumored to have a curved sensor and a 35mm f/1.8 lens. Sony has filed several different patents in the past for curved sensors and lenses.

Here is a quick description of the benefits from a curved sensor from IEEE:

Sony curved sensor

A curved CMOS sensor has a few advantages over a planar sensor, Itonaga said. Because of the geometry, it can be paired with a flatter lens and a larger aperture, which lets in more light. Photodiodes at the periphery of a sensor array will be bent toward the center, which means light rays will hit them straight on instead of obliquely. What's more, the strain induced on a CMOS sensor by bending it alters the band gap of the silicon devices in the sensor region, lowering the noise created by "dark current" — the current that flows through a pixel even when it is receiving no external light.

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