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SONY UNVEILS THE WORLD’S FIRST 48MP SMARTPHONE SENSOR

Jul 23, 2018
Michael Zhang


Sony has just announced a new CMOS sensor for smartphones that captures
48-megapixel photos — the highest pixel count in the industry. The sensor is the
world’s first to feature an ultra-small pixel size of just 0.8μm, which is what
allows it to stuff 48-megapixels onto a 1/2-inch sensor.




“These days, high-end smartphone models require even greater imaging quality
from their cameras,” Sony says. “The new Sony sensor features 48 effective
megapixels, a pixel count which rivals that of high-performance SLR cameras,
making it possible to capture beautiful, high-resolution images even with a
smartphone.”



A resolution comparison of a standard 12-megapixel sensor (left) compared to the
48-megapixel photos captured by the Sony IMX586 (right).

The Sony IMX586, as it’s called, has an interesting design feature that allows
it to shoot both high-quality, lower-resolution, low-light photos as well as
high-quality, higher-resolution, standard photos.



The sensor features a Quad Bayer color filter array in which every 2×2 square of
pixels has the same filter color. When shooting in low light, the data from
these 4-pixel grids are combined and interpreted as 1.6μm pixels with double the
size, allowing bright, low-noise 12-megapixel photos to be captured.

But when shooting in bright scenes (e.g. daytime outdoors), a signal processing
function is used to do an array conversion that allows the individual tiny
pixels to be used for an ultra-high-res 48-megapixel photo.

The 2×2 pixels used for low-light shooting (left) and the array conversion
(right) that results in 48-megapixel photos.


“Generally, miniaturization of pixels results in poor light collecting
efficiency per pixel, accompanied by a drop in sensitivity and volume of
saturation signal,” Sony says. “This product was designed and manufactured with
techniques that improve light collection efficiency and photoelectric conversion
efficiency over conventional products, resulting in the world’s first 0.8 μm
pixel size, with both high sensitivity and high saturation signal level.”

Other features of the Sony IMX586 include 4K video recording at 30fps, 480fps
high-speed recording at 1080p, phase-detect autofocus, and HDR imaging.

Sony says it will begin shipping the IMX586 sensor in September 2018 with a unit
price of ¥3,000 (~$27).


Equipment, Mobile, News, Technology
breakthrough, CMOS, cmossensor, phone, sensor, smartphone, Sony, technology

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 * Samsung’s New 200MP HM3 Camera Sensor Has World's Smallest Pixels
 * Sony RX100 IV and RX10 II Boast Stacked Sensors and 4K Video

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