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13 November 2018

Lextar launches its first VCSEL products for 3D depth-sensing

© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.

At the biannual electronica 2018 show in Munich (13-16 November), vertically integrated LED firm Lextar Electronics Corp of Hsinchu Science Park, Taiwan is launching its first portfolio of vertical-cavity surface-emitting laser (VSCEL) products for 3D depth-sensing applications, including gesture recognition, people detection, facial recognition and driver fatigue detection.

Lextar’s VCSEL PV88M component series is mainly applicable to light source emission in the 3D depth-sensing module, providing products with various wavelengths, brightnesses and package sizes, and beam-angle selection (from 45° to 100°). The series can be applied to many kinds of sensing systems based on customer demand.

As for gesture recognition, users can gesture to control a vehicle control system, such as adjusting audio volume, selection from the menu, and answering/hanging up phone calls.

In terms of facial recognition, the series (which is capable of reading faces and telling humans from photos) can be applied tpically to security systems.

For human detection applications, the series can recognize humans and detect human height, and is suitable for senior/children monitoring, senior fall detection, or people counting in a mall.

In addition, in driver fatigue detection applications, products can detect reactions of fatigue, including closed eyes and nodding, to enhance driving safety.

According to Lextar, existing mainstream 3D sensing includes stereo vision, structured light, and ToF (time of flight). By adopting ToF measurement, VCSELs - with advantages such as fast scanning, long distance, high efficiency and high resistance to ambient light - have gradually become a major factor in the 3D sensing market. Lextar says that, by developing VCSELs, it has entered the supply chain of the world’s top mobile phone makers, and has already begun to deliver products.

Also at electronica, Lextar is debuting its I-Mini Square module for automotive tail lamp application. Not long after announcing its mini-LED display technology in August, the firm has applied its latest mini-LED technology to automotive tail lamps, which can hence display dynamic images smoothly.

Tags: Lextar VCSELs LEDs

Visit: www.lextar.com

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