Imaging and image restoration of lens-combined modulated wavefront coding

In this paper, it presents a new wavefront coding (WFC) technology that we call lens-combined modulated wavefront coding (LM-WFC). Based on the LM-WFC design method, we establish a large depth of field and largeaperture system. Simulation results indicate that themodulation transfer function of the system has a defocus invariant characteristic, which all typical WFC systems have, with a large depth of field. Experimental results for comparing the LM-WFCimaging system and a traditionalimaging system are presented. The comparative results demonstrate that the LM-WFC system has animaging performance invariant over a wide depth of field range.

Source: Review of Scientific Instruments - September 27, 2016 Category: Physics Authors: Yijian Wu, Liquan Dong, Yuejin Zhao, Ming Liu, Xuhong Chu, Wei Jia and Xiaohu Guo Source Type: research