Skin Buttons: Cheap, Small, Low-Power and Clickable Fixed-Icon Laser Projectors @FiglabCMU

Uploaded October 2014 | Updated September 2026, 1 hour ago

Project page: gierad.com/projects/skinbuttons
Follow Gierad on Twitter: @gierad

We present Skin Buttons, tiny laser projectors integrated into the smartwatch to render icons on the user’s skin. These icons can be made touch sensitive, significantly expanding the interactive region without increasing device size. We show a proof-of-concept device and demonstrate example applications. These “skin buttons” can have high touch accuracy and recognizability, while being low cost and power-efficient.

Skin Buttons: Cheap, Small, Low-Power and Clickable Fixed-Icon Laser Projectors

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