Sony apre una nuova era per i sensori ottici digitali, sensori le cui caratteristiche ottiche "mimano" le fattezze dell'occhio umano, di seguito link ad articoli:
Sony engineers reports that they have created a set of curved CMOS image sensors using a "bending machine" of their own construction.
(http://www.dpreview.com/files/news/2279255612/sony-curved-sensor.jpg)
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.
(http://spectrum.ieee.org/img/curvediagramhalfcolumn-1402453918753.jpg)
Fonte:
http://spectrum.ieee.org/tech-talk/semiconductors/devices/sony-creates-curved-cmos-sensors-that-mimic-the-eye
Spiegazione sui vantaggi ottici da parte di un famoso sito di fotografia digitale:
The sensors inside digital cameras are - generally - flat. But curved sensors promise greater sensitivity, better image quality, and provide scope for simpler lenses.
Speaking at the VLSI symposium in Hawaii, Sony device manager Kazuichiro Itonaga showed a curved full-frame sensor and a smaller, curved 11mm diagonal sensor (which would be classed as 2/3"-type). The former is suited well for a fixed-lens full-frame camera (such as the RX1), while the latter is sized similarly to sensors in enthusiast compacts as well as the Nokia Lumia 1020. He did not detail the process but it appears they are fabricated flat, bent into shape using a custom machine, and then backed with ceramic to maintain the bent shape permanently.
Fonte:
http://www.dpreview.com/news/2014/06/18/sony-s-curved-sensors-may-allow-for-simpler-lenses-and-better-images