| 摘要 |
Described herein is a novelty led-projection message balloon for allowing a delightful and novel method of communicating endearing messages and/or animation. The inventive device includes a circuit board, lens assembly, housing, and power source. The circuit board consists of LEDs, a microcontroller, interfacing circuitry, spring brushes, a position detector, and a motor. The power supply provides power to the housed circuit board mounted inside a balloon. The circuit board spins with light emitting elements that are projected via a lens assembly onto the balloon inner wall. The elements are rapidly turned on-off in a sequenced manner to give the illusion of a message or animation (through the persistence of vision) being projected onto the exterior of the balloon.
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