The Use of Optical Metrology in Active Positioning of a Lens

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Description

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 plano-convex optical lens into the located position of the fixture. Center location specifications up to ±3 µm decenter and ±0.001° tilting accuracy are required. Nine precisely positioned lenses and fixtures were built with eight units passing the requirements ... continued below

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viii, 53 page : illustrations (chiefly color)

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Ji, Zheng August 2014.

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  • Ji, Zheng

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Description

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 plano-convex optical lens into the located position of the fixture. Center location specifications up to ±3 µm decenter and ±0.001° 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 µm or less. The assembled units show satisfactory results.

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viii, 53 page : illustrations (chiefly color)

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UNT Theses and Dissertations

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  • August 2014

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  • Aug. 21, 2015, 5:42 a.m.

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  • Nov. 16, 2016, 2:18 p.m.

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Ji, Zheng. The Use of Optical Metrology in Active Positioning of a Lens, thesis, August 2014; Denton, Texas. (digital.library.unt.edu/ark:/67531/metadc699892/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .