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Super Low-profile Synios IRED from OSRAM Sets New Standard for Eye Tracking in Mobile Devices
  • USA - English


News provided by

Macrovision

Dec 03, 2015, 10:00 ET

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With a height of only 0.6 mm, a footprint of 5,4 mm2 and a typical optical output of 1200 mW, the SFH 4770S is currently the most compact high-power LED with a wavelength of 850 nm.  Picture: Osram
With a height of only 0.6 mm, a footprint of 5,4 mm2 and a typical optical output of 1200 mW, the SFH 4770S is currently the most compact high-power LED with a wavelength of 850 nm. Picture: Osram

Sunnyvale, CA (PRWEB) December 03, 2015 -- The SFH 4770S from Osram Opto Semiconductors is currently the most compact infrared LED (IRED) in the high-power class. Its low height is especially beneficial in smartphones and tablets because its high optical output of 1200 milliwatts (mW) (typ.) and broad emission characteristics make it ideal for facial recognition and eye-tracking systems that can activate applications in response to eye blinking instead of the usual double-click.

Compared to the Oslon, previously our most compact high-power IRED, we have managed with Synios to reduce the footprint by almost one-third and the height by around one quarter.

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The basis for the new record-breaking emitter is the Synios package itself, which Osram introduced some time ago for LEDs in the visible spectral range for automotive applications. The package is extremely compact, measuring only 2.7 mm x 2.0 mm x 0.6 mm, and provides optimum light extraction. The SFH 4770S is the first component in which this package has been used for infrared emitters. Installed in the IRED is a 1 mm2 emitter chip with a wavelength of 850 nanometers (nm) in which two emission centers are provided with the aid of nanostack technology, in which two emission centers are epitaxially stacked in one chip. Overall, the component delivers a typical optical output of 1200 mW at a current of 1 ampere (A) with only one chip.

With a height of only 0.6 mm, the SFH 4770S has a lower profile than all IREDs previously available in its output class. This makes it extremely attractive for designs that call for broad homogeneous illumination in a limited space. This is particularly true for applications in mobile devices such as smartphones and tablets. “The SFH 4770S takes up very little space,” said Chris Goeltner, Product Marketing Manager at Osram Opto Semiconductors. “Compared to the Oslon, previously our most compact high-power IRED, we have managed with Synios to reduce the footprint by almost one-third and the height by around one quarter.”

The emission angle of 120° ensures that the target area is evenly illuminated. Even with this emission characteristic, the SFH 4770S achieves a typical radiant intensity of 375 mW per steradian (mW/sr) at 1 A thanks to its high overall output. This makes the IRED ideal for facial recognition and eye-tracking systems because they need the user’s face to be brightly and uniformly illuminated.

The Synios package is also highly suitable for injecting light into external optics or light guides. Another important property for all applications is the excellent thermal stability of the SFH 4770S. Its thermal resistance (Rth) is a maximum of 9 kelvin per watt (K/W).

The Synios SFH 4770S is already available on request for first customer projects. Volume start-up is planned for the end of January 2016.

Press Contact:
Kate Cleveland
Tel.     248-277-8018
Fax     248-596-0395
Email kate.cleveland(at)osram-os(dot)com

Technical Information:
Tel. 866-993-5211
Email: support(at)osram-os(dot)com
Sales contact: http://www.osram-os.com/sales-contacts

http://www.osram-so.com/pr-synios-sfh4770s

ABOUT OSRAM
OSRAM, based in Munich, is a globally leading lighting manufacturer with a history dating back more than 100 years. The portfolio ranges from high-tech applications based on semiconductor technology, such as infrared or laser lighting, to smart and connected lighting solutions in buildings and cities. OSRAM had around 33,000 employees worldwide at the end of fiscal 2015 (September 30) and generated revenue of almost €5.6 billion in that fiscal year. The company is listed on the stock exchanges in Frankfurt and Munich (ISIN: DE000LED4000; WKN: LED 400; trading symbol: OSR). Additional information can be found at http://www.osram.com.

Charles Birkhead, Macrovision, http://www.macrovis.com, +1 215-348-1010, [email protected]

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