Fabrication of micro imaging lens

Micro-electromechanical systems (MEMS) technology is an enabling tool for fabrication of components, devices and systems in the micro scale. The advancement in MEMS technology has allowed the designation and fabrication of different types of microlenses. In fact, studies on microlenses have been inc...

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Main Author: Lin, Weiding.
Other Authors: Murukeshan Vadakke Matham
Format: Final Year Project
Language:English
Published: 2009
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Online Access:http://hdl.handle.net/10356/16746
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-167462023-03-04T18:41:36Z Fabrication of micro imaging lens Lin, Weiding. Murukeshan Vadakke Matham Tor Shu Beng School of Mechanical and Aerospace Engineering DRNTU::Engineering::Manufacturing Micro-electromechanical systems (MEMS) technology is an enabling tool for fabrication of components, devices and systems in the micro scale. The advancement in MEMS technology has allowed the designation and fabrication of different types of microlenses. In fact, studies on microlenses have been increasing as researchers search and developed various methods and designs to fabricate microlenses for medical purpose etc. In this report, an introduction into the world of microlenses has been covered in the literature review section. The area of studies includes the studies of the different fabrication methods and the type of material to be used. The focus of this report will be the fabrication of microlenses by micro-compression molding. Polycarbonate will be used as the fabrication material in this report. The preparation steps included the usage of various equipments like the Rheograph 6000 Shimadzu CFT 500-D Capillary Rheometer for the Polycarbonate extrusion process and the Struers Minitom (Low Speed Cut-off Machine) for cutting the samples. The optimal parameters which may affect the fabricated results were then studied and experimented. The chosen parameters are the molding temperature, de-molding temperature and the molding velocity. A micro-compression machine was specially designed and studied for the fabrication process. Evaluation on the microlenses were carried out using the Scanning Electron Microscope and the initial findings concluded that molding temperature and de-molding temperature serves as critical components in the fabrication process. The ideal fabricated microlenses should have a diameter of 1.4mm and a spherical height of 0.7mm. This is to allow optical fibers of diameter 0.6mm to be attached to the microlenses. This report uses the Design of Experiment Method whereby a three level (33) factorial design was implemented. Future work directions were discussed towards the end of this report. Bachelor of Engineering (Mechanical Engineering) 2009-05-28T03:18:20Z 2009-05-28T03:18:20Z 2009 2009 Final Year Project (FYP) http://hdl.handle.net/10356/16746 en Nanyang Technological University 128 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Manufacturing
spellingShingle DRNTU::Engineering::Manufacturing
Lin, Weiding.
Fabrication of micro imaging lens
description Micro-electromechanical systems (MEMS) technology is an enabling tool for fabrication of components, devices and systems in the micro scale. The advancement in MEMS technology has allowed the designation and fabrication of different types of microlenses. In fact, studies on microlenses have been increasing as researchers search and developed various methods and designs to fabricate microlenses for medical purpose etc. In this report, an introduction into the world of microlenses has been covered in the literature review section. The area of studies includes the studies of the different fabrication methods and the type of material to be used. The focus of this report will be the fabrication of microlenses by micro-compression molding. Polycarbonate will be used as the fabrication material in this report. The preparation steps included the usage of various equipments like the Rheograph 6000 Shimadzu CFT 500-D Capillary Rheometer for the Polycarbonate extrusion process and the Struers Minitom (Low Speed Cut-off Machine) for cutting the samples. The optimal parameters which may affect the fabricated results were then studied and experimented. The chosen parameters are the molding temperature, de-molding temperature and the molding velocity. A micro-compression machine was specially designed and studied for the fabrication process. Evaluation on the microlenses were carried out using the Scanning Electron Microscope and the initial findings concluded that molding temperature and de-molding temperature serves as critical components in the fabrication process. The ideal fabricated microlenses should have a diameter of 1.4mm and a spherical height of 0.7mm. This is to allow optical fibers of diameter 0.6mm to be attached to the microlenses. This report uses the Design of Experiment Method whereby a three level (33) factorial design was implemented. Future work directions were discussed towards the end of this report.
author2 Murukeshan Vadakke Matham
author_facet Murukeshan Vadakke Matham
Lin, Weiding.
format Final Year Project
author Lin, Weiding.
author_sort Lin, Weiding.
title Fabrication of micro imaging lens
title_short Fabrication of micro imaging lens
title_full Fabrication of micro imaging lens
title_fullStr Fabrication of micro imaging lens
title_full_unstemmed Fabrication of micro imaging lens
title_sort fabrication of micro imaging lens
publishDate 2009
url http://hdl.handle.net/10356/16746
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