Moly: a prototype handheld three-dimensional digitizer with diffraction optics | Zendy

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Moly: a prototype handheld three-dimensional digitizer with diffraction optics

Author(s) -

Douglas Lyon

Publication year - 2000

Publication title -

optical engineering

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.357

H-Index - 105

eISSN - 1560-2303

pISSN - 0091-3286

DOI - 10.1117/1.602337

Subject(s) - computer science , mobile device , diffraction , optics , optical engineering , computer graphics (images) , integrated optics , computer hardware , physics , operating system

A working handheld 3-D diffraction range finder, nicknamed Moly, is demonstrated. This prototype is distinguished by a far-field mag- nification feature that is made possible by use of chirped frequency dif- fraction grating optics that reverse the perspective foreshortening typical of conventional triangulation range finders. This new type of 3-D profilo- meter illuminates its target with a collimated laser projector that produces a rectangle-shaped sheet of light of uniform width at all working dis- tances. Moly also employs dual magnetic wave detectors to facilitate freedom of movement for both the digitizing instrument and the subject. The instrument was designed primarily to digitize human faces and fig- ures for applications in art and medicine. © 2000 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(00)00801-1)

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