UV light system switches objects’ colours and patterns – E&T Magazine

MIT researchers have developed a system that rapidly updates imagery on object surfaces.
The system, dubbed ChromoUpdate, pairs an ultraviolet (UV) light projector with items coated in a light-activated dye. The projected light alters the reflective properties of the dye, creating colourful new images in just a few minutes.
According to the researchers, the technique could accelerate product development, enabling product designers to churn through prototypes without getting bogged down with painting…

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