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Iris recognition sensor ups mobile device security

Posted: 12 Oct 2015     Print Version  Bookmark and Share

Keywords:Toshiba  image sensor  CMOS  iris recognition  smartphone 

Toshiba Corp. has unleashed a near-infrared 2.1MP BSI CMOS image sensor that supports iris recognition on mobile devices. The T4KE1 has a 1/7.3in optical format and 60fps at 1080p image output.

According to the company, the sensor captures images for recognition with higher sensitivity than conventional CMOS image sensors, as it discards the usual colour filter in the pixel structure, increasing sensitivity in the near infrared spectrum. A serial interface, widely used in mobile devices, ensures easy integration.


In recent years, mobile devices such as smartphones, tablets and PCs have adopted user authentication systems to protect access and information security. Password entry remains the most common, but finger print recognition is also in wide use. Iris recognition is expected to deliver a better, more secure solution, because it offers high level protection without the risk associated with loss or misuse of passwords, which Toshiba aims to address with its near-infrared CMOS image sensor.

Toshiba provides a reference camera module with T4KE1 that customers can use for evaluation with their mobile devices. Toshiba also provides design information for the reference camera module and technical support, which will help customers to shorten development turnaround time and contributes to make thinner and smaller mobile devices.

System block diagram

The device supports RAW8 and RAW10 data format and offers a 5.20mm x 6mm x 4.06mm reference camera module, enabling customers to evaluate use of the sensor in their mobile products. Mass production will start in December 2015. Sample shipments are available.

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