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Tunable microlens arrays using polymer network liquid crystal |
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| Authors: | Hongwen Ren Yun-Hsing Fan Sebastian Gauza Shin-Tson Wu |
| Institution: | School of Optics/CREOL, University of Central Florida, 4000 Central Florida Blvd., Orlando, FL 32816, USA |
| Abstract: | A tunable-focus microlens array based on polymer network liquid crystal (PNLC) is demonstrated. The PNLC was prepared using an ultraviolet (UV) light exposure through a patterned photomask. The photocurable monomer in each of the UV exposed spot forms an inhomogeneous centro-symmetrical polymer network which acts as a lens when a homogeneous electric field is applied to the cell. The focal length of the microlens arrays is tunable with the applied voltage. |
| Keywords: | Liquid crystals Microlens Tunable focal length |
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