Development of experimental bench for characterization of frictional properties of contact lens

The contact of eyelid and lenses during blinking process is to a degree related to comfort level-of user as friction force is generated in this interaction. It became a huge concern for contact lens' manufacturer to reduce this friction force in the pursuit of comfort. However, there is hardly...

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Main Author:	Noornaziha, Mohd Lazim
Format:	Thesis
Language:	English English
Published:	2013
Subjects:	Q Science (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/15328/ http://umpir.ump.edu.my/id/eprint/15328/ http://umpir.ump.edu.my/id/eprint/15328/1/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Table%20of%20contents.PDF http://umpir.ump.edu.my/id/eprint/15328/2/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Abstract.PDF

id	ump-15328
recordtype	eprints
spelling	ump-153282016-11-16T01:31:15Z http://umpir.ump.edu.my/id/eprint/15328/ Development of experimental bench for characterization of frictional properties of contact lens Noornaziha, Mohd Lazim Q Science (General) The contact of eyelid and lenses during blinking process is to a degree related to comfort level-of user as friction force is generated in this interaction. It became a huge concern for contact lens' manufacturer to reduce this friction force in the pursuit of comfort. However, there is hardly any device commercially available that specifically designed to measure low friction force of contact lenses, as well as imitates the real eye conditions. Thus, this thesis deals with development of experimental bench to characterize low frictional properties of contact -lens, mainly focusing on improving the rotary stage. Taking advantage of commercially available DC-servomotor, rotary stage is successfully designed and it is then integrated with other important parts of the whole set up which are friction force sensor, lens holder as well as normal force sensor. Various tests manipulating velocity and normal forces onto the lenses have been run using this prototype and it has produced promising results. However, further measurements are needed to be performed under tighter experimental conditions. 2013-04 Thesis NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/15328/1/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Table%20of%20contents.PDF application/pdf en http://umpir.ump.edu.my/id/eprint/15328/2/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Abstract.PDF Noornaziha, Mohd Lazim (2013) Development of experimental bench for characterization of frictional properties of contact lens. Masters thesis, Universität zu Lübeck. http://iportal.ump.edu.my/lib/item?id=chamo:85201&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English
topic	Q Science (General)
spellingShingle	Q Science (General) Noornaziha, Mohd Lazim Development of experimental bench for characterization of frictional properties of contact lens
description	The contact of eyelid and lenses during blinking process is to a degree related to comfort level-of user as friction force is generated in this interaction. It became a huge concern for contact lens' manufacturer to reduce this friction force in the pursuit of comfort. However, there is hardly any device commercially available that specifically designed to measure low friction force of contact lenses, as well as imitates the real eye conditions. Thus, this thesis deals with development of experimental bench to characterize low frictional properties of contact -lens, mainly focusing on improving the rotary stage. Taking advantage of commercially available DC-servomotor, rotary stage is successfully designed and it is then integrated with other important parts of the whole set up which are friction force sensor, lens holder as well as normal force sensor. Various tests manipulating velocity and normal forces onto the lenses have been run using this prototype and it has produced promising results. However, further measurements are needed to be performed under tighter experimental conditions.
format	Thesis
author	Noornaziha, Mohd Lazim
author_facet	Noornaziha, Mohd Lazim
author_sort	Noornaziha, Mohd Lazim
title	Development of experimental bench for characterization of frictional properties of contact lens
title_short	Development of experimental bench for characterization of frictional properties of contact lens
title_full	Development of experimental bench for characterization of frictional properties of contact lens
title_fullStr	Development of experimental bench for characterization of frictional properties of contact lens
title_full_unstemmed	Development of experimental bench for characterization of frictional properties of contact lens
title_sort	development of experimental bench for characterization of frictional properties of contact lens
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/15328/ http://umpir.ump.edu.my/id/eprint/15328/ http://umpir.ump.edu.my/id/eprint/15328/1/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Table%20of%20contents.PDF http://umpir.ump.edu.my/id/eprint/15328/2/Development%20of%20experimental%20bench%20for%20characterization%20of%20frictional%20properties%20of%20contact%20lens%20-%20Abstract.PDF
first_indexed	2023-09-18T22:19:53Z
last_indexed	2023-09-18T22:19:53Z
_version_	1777415585113571328

Development of experimental bench for characterization of frictional properties of contact lens

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