標題: | Hybrid lens design for ultrawide-angle imaging with a high Strehl ratio in a folded system |
作者: | Chang, Yu-Shan Hsu, Long Huang, Kuang-Lung 電子物理學系 Department of Electrophysics |
公開日期: | 1-七月-2018 |
摘要: | When UV-curable material is used with a spherical glass lens, it is classified as a hybrid lens and can provide a new degree of freedom in designing a lens system. This method is used to explore the optical limitation of an ultrawide-angle imaging system of a folded structure, which is utilized to achieve a compact volume. The f-number and field of view of the system are 2.0 and 190 degrees, respectively. Diffraction-limited performance is achieved within a field of view of 80 degrees with Strehl ratios greater than approximately 80%. Even at the maximum field of view of 190 degrees, the Strehl ratio is nearly 75%. The lens configuration is NNPNN, where N and P denote negative and positive optical power, respectively; this configuration uses only two aspherical hybrid lens surfaces. Comparisons of different optimizations are also provided. (C) 2018 Optical Society of America |
URI: | http://dx.doi.org/10.1364/AO.57.005514 http://hdl.handle.net/11536/145216 |
ISSN: | 1559-128X |
DOI: | 10.1364/AO.57.005514 |
期刊: | APPLIED OPTICS |
Volume: | 57 |
起始頁: | 5514 |
結束頁: | 5522 |
顯示於類別: | 期刊論文 |