SkyAnchor: Optical Design for Anchoring Mid-air Images onto Physical Objects
summary
SkyAnchor uses a purely optical, retro-reflective system of two mirrors plus an aerial imaging plate (AIP) to reflect light from a source anchored under or on a physical object and form a mid-air image that stays fixed to the object with no sensing-induced latency in principle. Prototype options: table-fed source with capacitive marker tracking (some latency from sensing) or self-contained base with smartphone light to achieve zero registration delay. Works: anchored images track object position across 144 table segments; image height ≈100 mm, center-biased luminance, visible only behind the object and lower resolution at distance.
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