 A simple method for reconstructing digital color holograms, based on stretching techniques, yields good-quality synthetic holograms in which the constituent colors are multiplexed. 1 May 2013
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 Mismatches between the point at which the eyes must converge and the distance to which they must focus when viewing stereoscopic images have negative consequences. 23 April 2013
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 Many consumer-grade solid-state lighting sources have lower quality and energy efficiency than anticipated, with some lagging behind incandescent lamps and halogen spotlights. 15 April 2013
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 An array made of crossed mirrors composed of hollow apertures without substrates forms visible images that provide the sensory experience of warmth. 12 March 2013
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 A new projection method using laser diodes, optical fibers, and liquid crystal phase modulators can produce color, high-quality, high-contrast images with a handheld device and without photon loss. 8 March 2013
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