ScienceDaily: Carbon Fibers Make Tiny, Cheap Video Displays:
"Desai then built an optical scanner consisting of a tiny rectangular mirror measuring 400 by 500 microns, supported by two carbon-fiber hinges about 55 microns across. Made to oscillate at 2.5 kHz, the tiny mirror caused a laser beam to scan across a range of up to 180 degrees, corresponding to a 90-degree bend by the carbon fibers.
An oscillating mirror could be used to scan a laser beam across a screen, and an array of mirrors, one for each horizontal line, could produce an image in the same way that a moving electron beam creates an image on a television screen.
'It would be an incredibly cheap display,' Desai said. And the entire device would be small enough to build into a cell phone to project an image on a wall."
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