Better than a hologram: Research produces 3-D images floating in ‘thin air’

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Better than a hologram: Research produces 3-D images floating in ‘thin air’

In the original Star Wars film, R2D2 projects an image of Princess Leia in distress. The iconic scene includes the line still famous 40 years later: ‘Help me Obi Wan Kenobi, you’re my only hope.’ Electrical and computer engineering professor and holography experts have long had a goal to create the same type of 3-D image projection. Now, researchers detail a newly developed method to do so.

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