Coded masks
Binary optics and their application to imagery Self-imaging optics
Quizzed article REF: E4046 V1
Coded masks
Binary optics and their application to imagery Self-imaging optics

Authors : Guillaume DRUART, Florence DE LA BARRIERE, Nicolas GUERINEAU

Publication date: January 10, 2019, Review date: April 12, 2021 | Lire en français

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2. Coded masks

Coded masks are the ancestors of COBAI, as is the pinhole for focusing binary optics [E 4 045] . The gamma-ray and X-ray fields have proposed to counterbalance the low sensitivity of the pinhole by imaging the scene not with one, but with a multitude of pinholes. Here, the pinhole size is based on the case of a generalized Fresnel number FN≫1 (

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