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Optical Engineering

Light-driven motor
Author(s): Hideki Okamura
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Paper Abstract

A light-driven motor operated by a single source of light is demonstrated for the first time. The device utilizes a NiTi shape memory alloy (SMA) wire initially trained straight shape. The SMA wire was formed in a loop and put around two wheels. In the experiment a steady and continuous rotation was achieved with a bundled loop of 0.3-mm diameter wire. The rotational speed was proportional to the incident light power and 60 rpm was obtained at 3.6 W of light power. The experimental result was consistent with the theory.

Paper Details

Date Published: 1 February 2011
PDF: 3 pages
Opt. Eng. 50(2) 020503 doi: 10.1117/1.3542042
Published in: Optical Engineering Volume 50, Issue 2
Show Author Affiliations
Hideki Okamura, International Christian Univ. (Japan)

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