From Event: SPIE Optical Engineering + Applications, 2017
In this paper, it presents a new imaging technology that could realize to extent the depth of field and contribute to receive the large iris aperture optical system. The new technology combines lenses assistance and the aberration modulation. Based on the method, we establish a new optical system. Simulation results indicate that the modulation transfer function (MTF) curves of this optical system have consistency feature during different object distances. According to the feature, we can restore ambiguous images to unambiguous ones. Compared with another normal optical system, the experimental results indicate that the new optical system has the large depth of field and large iris aperture features.
Xiaohu Guo, Lingqin Kong, Yijian Wu, Yuejin Zhao, Liquan Dong, and Ming Liu, "Design and implementation of a large depth-of-field and large aperture optical system," Proc. SPIE 10376, Novel Optical Systems Design and Optimization XX, 103760E (Presented at SPIE Optical Engineering + Applications: August 09, 2017; Published: 24 August 2017); https://doi.org/10.1117/12.2273195.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon