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Sony IMX318 22.5 Megapixel Camera Sensor Launched for Smartphones

Sony IMX318 22.5-Megapixel Camera Sensor Launched for Smartphones

By Robin Sinha | Updated: 16 February 2016 23:22 IST

Sony on Tuesday revealed its new IMX318 CMOS Exmor RS image sensor for smartphones. The Japanese company touts its latest camera chip as the industry's first stacked CMOS image sensor with built-in hybrid autofocus (as fast as 0.03 seconds) and 3-Axis electronic image stabilisation (EIS).

The Sony IMX318 CMOS Exmor RS image sensor features a 1/ 2.6-inch stacked CMOS image sensor with 22.5 effective megapixels (5488x4112 pixel count). The company says it will start shipping the sensor in May (Q2 2016) this year, which is around the same time when the Sony Xperia Z6 is rumoured to launch.

Sony adds that the IMX318 includes industry's smallest unit pixels, which measure 1.0um, due to which the image sensor boasts a compact size while retaining the 22.5 effective megapixels. With the sensor, the end users can "capture image stills of those decisive moments reliably in high quality, as well as high resolution video without fear of blur."

The IMX318 is said to be the successor to the IMX230 (1/ 2.4-inch sensor with 1.12um unit pixel size), which has been used in Sony Xperia Z5. The smartphone however, ties up with the Samsung Galaxy S6 Edge+ for the best camera phone as per DxOMark, an image quality-rating website. Sony has made it clear that smaller pixel size does not harm the image quality in any manner. "To accomplish this, Sony employed manufacturing technology that improves light utilisation efficiency, as well as circuit design technology that eliminates noise, a root cause of deterioration in image quality."

As for its video capabilities, the latest camera sensor corrects not only camera shake, but also lens distortion for better output. In addition, since the image stabilisation processing takes place within the hardware of the image sensor, less power is consumed from the handset. Sony says that since the sensor enables smooth video recording, it can be used in other products as well such as drones. The sensor can record 4K resolution videos at up to 30fps, full-HD resolution videos at up to 120fps, and HD videos at up to 240fps.

Sony, in a blog post, said that it adopted the MIPI (Mobile Industry Processor Interface) Alliance's latest C-PHY 1.0/D-PHY 1.2 specifications for its IMX318 CMOS Exmor RS image sensor. "With this interface, the IMX318 is able to achieve more power efficient and faster data transmission from the image sensor to the application processor," says the firm.

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