標題: | Long working range light field microscope with fast scanning multifocal liquid crystal microlens array |
作者: | Hsieh, Po-Yuan Chou, Ping-Yen Lin, Hsiu-An Chu, Chao-Yu Huang, Cheng-Ting Chen, Chun-Ho Qin, Zong Corral, Manuel Martinez Javidi, Bahram Huang, Yi-Pai 光電工程學系 Department of Photonics |
公開日期: | 16-四月-2018 |
摘要: | The light field microscope has the potential of recording the all information of biological specimens in real time with a conventional light source. To further extend the depth of field to broaden its applications, in this paper, we proposed a multifocal high-resistance liquid crystal microlens array instead of the fixed microlens array. The developed multifocal liquid crystal microlens array can provide high quality point spread function in multiple focal lengths. By adjusting the focal length of the liquid crystal microlens array sequentially, the total working range of the light field microscope can be much extended. Furthermore, in our proposed system, the intermediate image was placed in the virtual image space of the microlens array, where the condition of the lenslets numerical aperture was considerably smaller. Consequently, a thin-cell-gap liquid crystal microlens array, with fast response time can be implemented for time-multiplexed scanning. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
URI: | http://dx.doi.org/10.1364/OE.26.010981 http://hdl.handle.net/11536/144862 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.26.010981 |
期刊: | OPTICS EXPRESS |
Volume: | 26 |
起始頁: | 10981 |
結束頁: | 10996 |
顯示於類別: | 期刊論文 |