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Proceedings Paper

Moly: a prototype handheld 3D digitizer with diffraction optics
Author(s): Thomas Ditto; Douglas A. Lyon
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Paper Abstract

A working hand-held 3D digitizer, Moly, is demonstrated. It is distinguished by a magnification feature which is made possible by special diffraction optics that minimize the perspective effects typical of conventional triangulation. As a result this innovative device illuminates its target with a collimated laser projector that produces a sheet of light of uniform height at all working distances. The diffraction optics afford improved depth-of-field compared to triangulation scanners of equivalent resolution. This prototype also employs dual magnetic wave detectors to facilitate freedom of movement for both the digitizer and the subject. The instrument was designed primarily to digitize human faces and figures for applications in art and medicine.

Paper Details

Date Published: 8 March 1999
PDF: 12 pages
Proc. SPIE 3640, Three-Dimensional Image Capture and Applications II, (8 March 1999); doi: 10.1117/12.341072
Show Author Affiliations
Thomas Ditto, DeWitt Brothers Tool Co., Inc. (United States)
Douglas A. Lyon, Univ. of Bridgeport (United States)

Published in SPIE Proceedings Vol. 3640:
Three-Dimensional Image Capture and Applications II
Joseph H. Nurre; Brian D. Corner, Editor(s)

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