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Sony leiutab:

Sony Creates Curved CMOS Sensors That Mimic the Eye

The retinas of humans and other animals line the curved inner surface of the eye. Now, in a bit of zoological mimicry, Sony engineers reports that they have created a set of curved CMOS image sensors using a "bending machine" of their own construction.

The result is a simpler lens system and higher sensitivity, Kazuichiro Itonaga, a device manager with Sony's R&D Platform in Atsugi-shi, Japan reported on Tuesday at the Symposium on VLSI Technology in Honolulu, Hawaii.

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.

Edasi juba lingil:
http://spectrum.ieee.org/tech-talk/semiconductors/devices/sony-creates-curved-cmos-sensors-that-mimic-the-eye