Smart LED enables dynamic in-car lighting scenarios
“In the future, the interior of vehicles will be more than simply a cabin for the driver and passengers. It will be an extension of our living space in which we will be able to work and relax”, explained Stephan Pawlik, Marketing Manager Automotive Interior at Osram Opto Semiconductors: “Light sources in car interiors will provide ambient lighting and perform a number of additional functions. For example, they could use dynamic and colour effects to draw the driver’s attention back to the traffic in good time.”
To make it easier to provide such new functions in vehicles, Osram has installed a serial control driver from Inova Semiconductors in the new E4633i product from the Osire family in addition to the three colour chips (red, blue and green). This lighting solution makes it possible for a large number of separate LEDs to be controlled via a serial bus system either individually or in groups. This provides simple implementation of uniform colour rendering across the entire colour space as well as dynamic light cases.
The E4633i is pre-calibrated and can automatically correct colour shifts in the red range caused by fluctuations in temperature, simplifying colour and brightness control.
The LED has an extremely compact pre-mold SMT package with a 4.6×3.3×0.7mm footprint, its link to the serial bus now allow implementations with more LEDs in a much smaller space.
Osram Opto Semiconductors – www.osram-os.com
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