The Use of Optical Metrology in Active Positioning of a Lens Page: 2
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Ji, Zheng. The Use of Optical Metrology in Active Positioning of a Lens. Master of
Science (Engineering Systems - Electrical Systems), August 2014, 53 pp., 4 tables, 35
figures, 41 numbered references.
Precisely positioned optical lenses are currently required for many highly
repetitive mechanics and applications. Thus the need for micron-scale repetition
between opto-mechanical units is evident, especially in industrial manufacturing and
medical breakthroughs. In this thesis, a novel optical metrology system is proposed,
designed, and built whose purpose is to precisely locate the center of a mechanical
fixture and then to assemble a piano-convex optical lens into the located position of the
fixture. Center location specifications up to 3 pm decenter and 0.0010 tilting accuracy
are required. Nine precisely positioned lenses and fixtures were built with eight units
passing the requirements with a repetitive standard deviation of 0.15 pm or less. The
assembled units show satisfactory results.
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Ji, Zheng. The Use of Optical Metrology in Active Positioning of a Lens, thesis, August 2014; Denton, Texas. (https://digital.library.unt.edu/ark:/67531/metadc699892/m1/2/: accessed April 26, 2019), University of North Texas Libraries, Digital Library, https://digital.library.unt.edu; .