2.1MP CMOS image sensor supports iris recognition

Toshiba America Electronic Components Inc. (TAEC) has uncloaked what it says is its first CMOS image sensorto allow iris recognition to boost security on mobile devices. The 2.1MP T4KE1 captures images for recognition with higher sensitivity than conventional CMOS image sensors by omitting the usual colour filter in the pixel structure, which increases sensitivity in the near-infrared (NIR) spectrum, stated the company.

In recent years, mobile devices, smartphones, tablets, laptops and notebooks, have adopted user authentication systems to protect access and information security. While fingerprint recognition has grown in use, password entry remains the most common approach. Iris recognition is expected to deliver a better solution, as it offers a high degree of protection without the risk associated with lost or misused passwords, and allows the creation of "you are the password" access, the company said.

The T4KE1 features an optical size of 1/7.3in and pixel pitch of 1.12?m BSI. Image output is 60fps at 1080p (100fps at VGA). Its MIPI CSI-2 serial interface, widely used in mobile devices, facilitates the sensor's integration into end products, and a picture flipping function allows output images to be easily flipped both horizontally and vertically, detailed Toshiba.

The company has also designed and provides with the T4KE1, a 5.20mm x 6mm x 4.06mm reference camera module, enabling customers to evaluate use of the sensor in their mobile products. Included with the modules are design information and technical support to help shorten development turnaround time and contribute to creation of thinner, smaller mobile devices.

Samples of the T4KE1 CMOS image sensor are available now. Mass production is set to begin in December 2015.