ams to ship VCSEL arrays for Xiaomi's face recognition feature

August 14, 2018 //By Julien Happich
ams to ship VCSEL arrays for Xiaomi's face recognition feature
ams made public that Xiaomi’s new Mi8 smartphone uses miniature infrared VCSEL arrays from the Austrian company to enable the world’s first implementation of user face recognition in a smartphone based on the Android platform.

Delivered in a 3x3x1mm package, the PMSIL VCSEL array comes as a complete flood illuminator system with integrated eye-safety interlock, offering very high optical efficiency and minimizing the drain on the phone’s battery when emitting. The device incorporates the emitter die, and a diffuser, featuring high spectral stability over temperature, and a narrow spectral width of <1nm. Its engineered beam profile can be precisely configured to the needs of specific smartphone applications.

In the Mi8 Explorer Edition, the PMSIL operates in always-on mode for face detection and recognition. The IR VCSEL emitter in the structured lighting system, the CS115, is also supplied by ams.

The ams relationship with Xiaomi extends beyond the provision of IR laser arrays: ams also supplies the TMD27253 ambient light sensor and proximity detection module in the Mi8 and Mi8SE models.

“Xiaomi is a stand-out performer in the Chinese smartphone market and, increasingly, globally because of its bold and innovative design approach and its ability to implement advanced technologies in beautiful, sleek phones,” said Hui Nie, General Manager for product line VCSEL at ams.

“To fit the slim, bezel-less design of the Mi8 Explorer Edition, Xiaomi’s designers wanted to build the smallest possible face recognition system which led them to evaluate the ams IR VCSEL arrays. Once they tested the power consumption of the ams devices against that of competing products, the overall superiority of the ams parts became very clear.”

ams – www.ams.com


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