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Computational Light Routing: 3D Printed Optical Fibers for Sensing and Display

Published: 02 June 2014 Publication History

Abstract

Despite recent interest in digital fabrication, there are still few algorithms that provide control over how light propagates inside a solid object. Existing methods either work only on the surface or restrict themselves to light diffusion in volumes. We use multi-material 3D printing to fabricate objects with embedded optical fibers, exploiting total internal reflection to guide light inside an object. We introduce automatic fiber design algorithms together with new manufacturing techniques to route light between two arbitrary surfaces. Our implicit algorithm optimizes light transmission by minimizing fiber curvature and maximizing fiber separation while respecting constraints such as fiber arrival angle. We also discuss the influence of different printable materials and fiber geometry on light propagation in the volume and the light angular distribution when exiting the fiber. Our methods enable new applications such as surface displays of arbitrary shape, touch-based painting of surfaces, and sensing a hemispherical light distribution in a single shot.

Supplementary Material

pereira (pereira.zip)
Supplemental movie, appendix, image and software files for, Computational Light Routing: 3D Printed Optical Fibers for Sensing and Display
MP4 File (a24-sidebyside.mp4)

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Published In

cover image ACM Transactions on Graphics
ACM Transactions on Graphics  Volume 33, Issue 3
May 2014
145 pages
ISSN:0730-0301
EISSN:1557-7368
DOI:10.1145/2631978
Issue’s Table of Contents
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 02 June 2014
Accepted: 01 December 2013
Received: 01 October 2013
Published in TOG Volume 33, Issue 3

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Author Tags

  1. 3D printing
  2. optical fibers

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