Panasonic has developed an 8K image sensor capable of shooting 60p video, with wide dynamic range and global shutter. The latter removes the `rolling shutter` effect from stills and video. The sensor combines an organic photosensitive film that sits atop CMOS circuitry, circumventing one of the biggest problems with traditional global shutter CMOS chips: co-located photosensitive and charge storage areas that compete with one another for space within the surface area of each pixel. This allows Panasonic`s chip to comparatively achieve far greater photosensitive area (better low light performance) and expansive charge capacity (wide dynamic range), and perform some other unique tricks.
Comparing typical BSI CMOS image sensor design (left), Panasonic`s new OPF/CMOS image sensor (right). Note how thin the OPF layer is compared to a traditional silicon photodiode. This allows a large area to be devoted to circuitry, and also means each pixel can accept a wider cone of incident light. This increases the CRA (chief ray angle) from the traditional 30-40º to 60º.
In June of 2013, Fujifilm and Panasonic announced a collaboration that got a lot of photography nerds talking: together, the two companies had developed an `industry-leading` organic / CMOS sensor technology that replaces the silicon photodiode in a conventional CMOS chip with a much thinner, high absorption coefficient organic photoelectric conversion (OPC) layer. A transparent electrode sits on top of this organic photoconductive film (OPF) and modulates its photosensitivity when a voltage is applied. This approach brings a number of advantages, like the ability to accept more oblique light rays, higher pixel capacities and global shutter.
Advantages include the ability to accept more oblique light rays, higher pixel capacities and global shutter
It`s been many years since we first heard about the collaboration, but it now appears to be at the heart of Panasonic`s latest announcement: th ...
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