Floating aerial LED signage based on aerial imaging by retro-reflection (AIRR)
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Optics Express
|November 18, 2014
Abstract:
We propose a floating aerial LED signage technique by utilizing retro-reflection. The proposed display is composed of LEDs, a half mirror, and retro-reflective sheeting. Directivity of the aerial image formation and size of the aerial image have been investigated. Furthermore, a floating aerial LED sign has been successfully formed in free space.
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