| Autor: |
Jia-Wern Chen, Din Ping Tsai, Shining Zhu, Mu Ku Chen, Zhenlin Wang, Ren Jie Lin, Yi Teng Huang, Hsin Yu Kuo, Shuming Wang, Tzu-Ting Huang, Vincent Yi Fong Su, Cheng Hung Chu, Tao Li |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
ODS 2020: Industrial Optical Devices and Systems. |
| DOI: |
10.1117/12.2568324 |
| Popis: |
We design and fabricate a 60 × 60 GaN based achromatic meta-lens array to capture multidimensional optical information of the scene. The working wavelength is from 400 nm to 660 nm which covers the entire visible light range. The highest efficiency of single metalens can be up to 74% at a wavelength of 420 nm, while the average efficiency is approximately 39% over the whole working bandwidth. The light field images and the depth information of objects can be determined by reorganizing the patches of sub-images and calculating the disparity of neighboring sub-images, respectively. The depth information can be used to optimize the patch sizes to render the all-in-focus image without artifacts. Our work provides several advantages associated with light field imaging: elimination of chromatic aberration, polarization selectivity and compatibility of the semiconductor process. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
