Migration from Diffractive to Refractive Mask for High Quality Lensless Imaging

Ilya Reshetouski,Ryuichi Tadano,Hideki Oyaizu, Ryosuke Sawano,Jun Murayama

Imaging and Applied Optics Congress 2022 (3D, AOA, COSI, ISA, pcAOP)（2022）

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摘要

Lensless imaging with diffractive masks suffers from strong wavelength and angular dependency of their point spread function. We demonstrate that substituting a diffractive mask with an equivalent refractive free-form surface helps to improve imaging quality.

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关键词

high quality lensless imaging,refractive mask,diffractive,migration

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