Optical touch screen based on waveguide sensing

We disclose a simple, optical touch screen technique based on a planar injection molded polymer waveguide, a single laser, and a small linear detector array. The solution significantly reduces the complexity and cost as compared to existing optical touch technologies. Force detection of a touching finger is also demonstrated. Original language English Journal Applied Physics Letters Volume 99 Issue number 6 Pages (from-to) 061102 ISSN 0003-6951 DOIs https://doi.org/10.1063/1.3615656 Publication status Published - 2011 Bibliographical note Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Applied Physics Letters, Volume 99, Issue 6 and may be found at http://apl.aip.org/resource/1/applab/v99/i6/p061102_s1.