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Lasers Could Offer Alternative to LED Light Sources

Two recent announcements, from Sandia Labs and car maker BMW, have suggested that lasers could ultimately provide a more-efficient alternative to LEDs in certain lighting applications. Sandia conducted experiments to evaluate whether a four-color laser system could provide a viable white-light illumination source. Meanwhile, BMW has demonstrated a prototype laser-based headlight system on its i8 Concept car that uses blue lasers and phosphors. The Sandia experiment combined the output of four laser colors – blue, red, green and yellow – to create a white light source that was compared with other light sources, including incandescent and LED-based sources.