High-Quality Large-Magnification Polymer Lens from Needle Moving Technique and Thermal Assisted Moldless Fabrication Process |
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Authors: | Ratthasart Amarit Atcha Kopwitthaya Prasit Pongsoon Ungkarn Jarujareet Kosom Chaitavon Supanit Porntheeraphat Sarun Sumriddetchkajorn Thaweesak Koanantakool |
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Institution: | 1. National Electronics and Computer Technology Center (NECTEC), Pathum Thani, Thailand;2. National Science and Technology Development Agency (NSTDA), Pathum Thani, Thailand;Pohang University of Science and Technology, REPUBLIC OF KOREA |
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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. |
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