Improvements to Whole Lens Reconstruction for Saline Submerged Soft Contact Lenses

Persistent Link:
http://hdl.handle.net/10150/612612
Title:
Improvements to Whole Lens Reconstruction for Saline Submerged Soft Contact Lenses
Author:
Guido, Christopher James
Issue Date:
2016
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A method for measuring the thickness and surface profiles of soft contact lenses while submerged in a saline solution has been implemented utilizing a low coherence Twyman-Green Interferometer. Although the original measurements demonstrated that features on the contact lens surfaces could be accurately determined, it was believed that the layout of the system also induced surface profile distortions. A new opto-mechanical layout has been implemented which eliminates many of these low frequency distortions. Improvements to the original phase unwrapping algorithms have also been developed to overcome the low visibility output inherent to the measurement allowing for a more complete analysis of the two surfaces of a contact lens.
Type:
text; Electronic Thesis
Keywords:
Low Coherence Interferometry; Metrology; Non-null Measurment; Opto-Mechanics; Phase Unwrapping; Optical Sciences; Apsheric Testing
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Optical Sciences
Degree Grantor:
University of Arizona
Advisor:
Greivenkamp, John

Full metadata record

DC FieldValue Language
dc.language.isoen_USen
dc.titleImprovements to Whole Lens Reconstruction for Saline Submerged Soft Contact Lensesen_US
dc.creatorGuido, Christopher Jamesen
dc.contributor.authorGuido, Christopher Jamesen
dc.date.issued2016-
dc.publisherThe University of Arizona.en
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en
dc.description.abstractA method for measuring the thickness and surface profiles of soft contact lenses while submerged in a saline solution has been implemented utilizing a low coherence Twyman-Green Interferometer. Although the original measurements demonstrated that features on the contact lens surfaces could be accurately determined, it was believed that the layout of the system also induced surface profile distortions. A new opto-mechanical layout has been implemented which eliminates many of these low frequency distortions. Improvements to the original phase unwrapping algorithms have also been developed to overcome the low visibility output inherent to the measurement allowing for a more complete analysis of the two surfaces of a contact lens.en
dc.typetexten
dc.typeElectronic Thesisen
dc.subjectLow Coherence Interferometryen
dc.subjectMetrologyen
dc.subjectNon-null Measurmenten
dc.subjectOpto-Mechanicsen
dc.subjectPhase Unwrappingen
dc.subjectOptical Sciencesen
dc.subjectApsheric Testingen
thesis.degree.nameM.S.en
thesis.degree.levelmastersen
thesis.degree.disciplineGraduate Collegeen
thesis.degree.disciplineOptical Sciencesen
thesis.degree.grantorUniversity of Arizonaen
dc.contributor.advisorGreivenkamp, Johnen
dc.contributor.committeememberWyant, Jamesen
dc.contributor.committeememberSchwiegerling, Jamesen
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