The current interest in pico projectors presents an interesting confluence between technology-driven product development and market-driven product requirements. Despite this favorable circumstance, the eventual commercial success of these products remains yet uncertain. The pico projector is the natural evolution of projector technology ranging from the large-venue projectors providing tens of thousands of lumens, through conference-room products providing a few thousand lumens, to portable products providing about one thousand lumens, to pocket projectors providing several tens to a few hundred lumens, and now to pico projectors for which ten or so lumens is a reasonable objective for a very small battery-operated portable device.
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