LED kaleidoscope uses induction power magic

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The kaleidoscope was first invented in the early 1800s, with the curiosity known for showing compelling psychedelic patterns when light passes through colored glass and is reflected off mirrors in a tube. [Debra] from Geek Mom Projects recently gave the classic toys a thoroughly modern twist with her own build† (Wire reader link).

[Debra]’s kaleidoscope still relies on the typical mirror tube construction to create reflections on reflections that generate symmetrical patterns for the viewer. However, instead of colored glass beads illuminated by external light, she replaced them with so-called “wireless LEDs”. These tiny bead-like LEDs are equipped with small coils that allow them to be inductively powered without wires when placed in the magnetic field generated by a driven coil. So, [Debra]The kaleidoscope works day and night, even in a dark room, because the light comes from the small bead-shaped LEDs themselves.

It’s a great demonstration of wireless LED technology; there is something almost magical about the small free-moving glowing beads. If you don’t want to buy them off the shelf, you can even make them yourself! Video after the break.



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