title: High-Quality Large-Magnification Polymer Lens from Needle Moving Technique and Thermal Assisted Moldless Fabrication Process.
abstract: The need of mobile microscope is escalating as well as the demand of high quality optical components in low price. We report here a novel needle moving technique to fabricate milli-size lens together with thermal assist moldless method. Our proposed protocol is able to create a high tensile strength structure of the lens and its base which is beneficial for exploiting in convertinga smart phone to be a digital microscope. We observe that no bubble trapped in a lens when this technique is performed which can overcome a challenge problem found in a typical dropping technique. We demonstrate the symmetry, smoothness and micron-scale resolution of the fabricated structure. This proposed technique is promising to serve as high quality control mass production without any expensive equipment required.
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Ratthasart
authors.initials: R
authors.lastname: Amarit
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Atcha
authors.initials: A
authors.lastname: Kopwitthaya
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Prasit
authors.initials: P
authors.lastname: Pongsoon
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Ungkarn
authors.initials: U
authors.lastname: Jarujareet
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Kosom
authors.initials: K
authors.lastname: Chaitavon
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Supanit
authors.initials: S
authors.lastname: Porntheeraphat
authors.affiliation: National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand.
authors.forename: Sarun
authors.initials: S
authors.lastname: Sumriddetchkajorn
authors.affiliation: National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand.
authors.forename: Thaweesak
authors.initials: T
authors.lastname: Koanantakool
mesh_terms: D000465:Algorithms; D004867:Equipment Design; D007909:Lenses; D008853:Microscopy / Q000295:instrumentation* / Q000592:standards*; D008962:Models, Theoretical; D011108:Polymers
chemical_list: D011108:Polymers