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Osram Brings Biometrics To Cars


Unlocking cars with iris scans and facial recognition

Osram Opto Semiconductors has announced the Synios SFH 4772S A01 and Synios SFH 4775S A01m, two IR LEDs designed for iris scanning or facial recognition including for biometric identification in cars.

“With these products we are covering a number of different applications and have now succeeded in extending biometric identification to cars. Once more, light-based technology is laying the foundation for innovations in the vehicles of tomorrow”, said Walter Rothmund, marketing manager automotive for emitter laser sensor at Osram Opto Semiconductors.

The new Synios SFH 4772S A01 is designed for use in iris scanning systems. This application is best known at present for unlocking smartphones and tablets without the need for a password. The IRED functions here as a light source, illuminating the iris with infrared light in a suitable wavelength so that a camera can capture an image of the iris pattern - whatever the colour of the eye. The system then compares this information with the stored data and unlocks the device if there is a match. SFH 4772S A01 emits infrared light with a wavelength of 810 nm and achieves an optical output of 1070 mW at 1 A.

The second product, the Synios SFH 4775S A01, is particularly suitable for facial recognition and driver monitoring, says Osram. Both these applications ideally require a wavelength of 940 nm. The IRED has an optical output of 1650 mW at 1.5 A, but has also been designed for high pulse loads up to 5 A.

The devices have compact dimensions of 2.0 mm x 2.8 mm x 0.6 mm. Depending on requirements, customers can place matching optics over the component to save space. The two power emitters are Lambertian emitters with flat encapsulation. Double-stack chip technology ensures high output power. Both products are qualified for automotive applications and approved for temperatures up to 125degC. They will be available from the spring of 2019.

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