Lee May Shian, Helen and Aina Aishah, Maharon and Raja Murfiqah, Raja Mohd Fouzy and Norfazilasari, Yasman and Mohd Zairulnizam, Mohd Zawawi (2022) Fabrication of glass microlens array using laser-assisted contactless hot embossing. In: The 6th National Conference for Postgraduate Research (NCON-PGR 2022) , 15 November 2022 , Virtual Conference, Universiti Malaysia Pahang, Malaysia. p. 86..
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Abstract
Contactless hot embossing is one promising replication-based method for fabrication of high quality microlens array (MLA) with different sag height but suffers long thermal cycle. Herein, rapid fabrication of glass MLA using laser-assisted contactless hot embossing process is proposed.CO2 laser irradiation that passes through the micro holes mold promotes surface heating at the glass surface and speed up the formation of spherical MLA. The effect of the laser irradiation conditions, preheating temperature and holding time to the formation of MLA was discussed. Finally, high aspect ratio and smooth spherical glass MLA array with different sag height were successfully fabricated.
| Item Type: | Conference or Workshop Item (Lecture) |
|---|---|
| Uncontrolled Keywords: | Microlens array (MLA); Optical glass; Contactless hot embossing; Laser-irradiation. |
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TS Manufactures |
| Faculty/Division: | Institute of Postgraduate Studies Faculty of Manufacturing and Mechatronic Engineering Technology |
| Depositing User: | Mr Muhamad Firdaus Janih@Jaini |
| Date Deposited: | 20 Feb 2023 04:51 |
| Last Modified: | 20 Feb 2023 04:51 |
| URI: | http://umpir.ump.edu.my/id/eprint/36861 |
| Download Statistic: | View Download Statistics |
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