Osram’s new IR Oslux SFH 4780S is the firm’s first infrared emitter with a wavelength of 810 nanometers (nm) and height of only 2.4 mm, which, Osram says, “paves the way for compact energy-saving designs for reliable iris scanning functionality on mobile devices”.
German lighting firm Osram has introduced an infrared LED that it says will be well-suited for adding iris scanning to phones and tablets.
The new IR Oslux SFH 4780S is the firm’s first infrared emitter with a wavelength of 810 nanometers (nm) and height of only 2.4 mm.
“This combination paves the way for compact energy-saving designs for reliable iris scanning functionality on mobile devices,” said Osram.
Osram said the led’s wavelength of 810 nm is ‘particularly suitable in this [iris scanning] because it provides high-contrast pictures of the irises of any colour at comparatively low levels of light’.
“The SFH 4780S is Osram’s answer to the notorious problem of a lack of space in mobile devices,” said the company.
Oslux LEDs been used for visible lighting applications in mobile devices, such as camera flashes.