Holographic displays

Cheap, color, holographic videoA practical new approach to holographic video could also enable 2-D displays with higher resolution and lower power consumption.

Chips that can steer lightRecord-setting ‘optical phased arrays’ could lead to better laser rangefinders, smaller medical-imaging devices and even holographic TVs.

Glasses-free 3-D TV looks nearerA new method for producing multiple-perspective 3-D images could prove more practical in the short term than holography.