Holovisions spinning/tilting microlenses 3D technology
Holovisions LLC (Minneapolis, MN, USA) developed a new glasses-free 3D display technology based on an array of moving microlenses. The company announced recently that three new US patents about this technology (7,889,425, 7,957,061, and 7,978,407) were approved.
The Holovision technology does not have a restrictive viewing zone, does not produce only transparent images, does not require coherent light, and does not require liquid movement to adjust lens shape. Holovisions LLC may be found at www.holovision.com where you will find an extensive introduction to the Holovision autostereoscopic display method.
If you are interested in fine details about this autostereoscopic display method, have a look at Patent 7,889,425 (dated Feb 2011).