#OPTICS: "Light Funnels Enable Reflective Displays"

Micro-electro-mechanical systems (MEMS) are already used for reflective displays, such as the Mirasol from Qualcomm which modulates the depth of nanoscale slits. Now University of Michigan researchers have demonstrated how adjusting both the depth and the width of sub-wavelength grooves enables a widening of the field-of-view--even when viewed in bright sunlight: R. Colin Johnson @NextGenLog

Nanoscale grooves whose depth and width is proportional to the wavelength of filter light illustrate here the full visible spectrum--from violet to blue to green to red to yellow.
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