“Luciola: A Light-Emitting Particle Moving in Mid-Air Based On Ultrasonic Levitation and Wireless Powering”
Conference:
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Title:
- Luciola: A Light-Emitting Particle Moving in Mid-Air Based On Ultrasonic Levitation and Wireless Powering
Organizer(s)/Presenter(s):
Description:
We propose a mid-air display system, called “Luciola”, which can draw characters and acts as a moving micro lamp in mid-air. It combines acoustic levitation with focused ultrasonic sound and wireless powering with magnetic resonant coupling. A custom IC in levitated particle is designed to reduce its size and weight.
In this paper, we present an approach to realize the levitation of a small object with an embedded electronic circuit. Luciola is a light-emitting particle with a diameter of 3.5mm and a weight of 16.2mg moving in mid-air. The novelty of this paper is the ultrasonically levitated electronic object powered by resonant inductive coupling. To enable the levitation of a particle, a custom IC chip is essential in reducing the size and weight of the particle. Ths custom IC chip is designed to achieve an intermittent lighting of the LED, which increases the maximal distance between the transmitter and the receiver coils. Luciola is applied to a self-luminous pixel in a 3-dimensional (3D) mid-air display and the drawing of characters in mid-air is also demonstrated.
References:
[1]
Ochiai, Y., Hoshi, T., and Rekimoto, J. 2014. Pixie dust: Graphics generated by levitated and animated objects in computational acoustic-potential field. ACM Transactions on Graphics 33, 4 (Jul. 2014), 85:1–85:13.
[2]
Sahoo, D. R., Nakamura, T., Marzo, A., Omirou T., Asakawa, M., and Subramanian, S. 2016. JOLED: A mid-air display based on electrostatic rotation of levitated Janus objects. In Proceedings of the 29th Annual Symposium on User Interface Software and Technology (UIST ’16). ACM, 437–448.
[3]
Uno, Y., Qiu H., Sai T., Iguchi S., Mizutani Y., Hoshi T., Kawahara Y., Kakehi Y., and Takamiya M. 2017. Luciola: A Millimeter-Scale Light-Emitting Particle Moving in Mid-Air Based On Acoustic Levitation and Wireless Powering. Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies 1, 4 (Dec. 2017), Article 166.
