Head-up displays — like the ones in fighter jets — are appearing in cars, and lasers may make them more common and useful.
Microvision, a Redmond, Wash.-based company, is building a laser-based display that uses a red, green and blue laser as well as a mirror, which tilts to direct the beams. By adjusting the intensity of the lasers, the display produces differently colored pixels. The mirror scans horizontally and vertically, producing an image on the windshield made of lit pixels. The whole process is fast enough that the human eye can’t see the scanning, so the image looks steady.