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    • 87. 发明授权
    • Method for observing a sample
    • US11592435B2
    • 2023-02-28
    • US16655300
    • 2019-10-17
    • Commissariat A L'Energie Atomique et aux Energies Alternatives
    • Lionel HerveCedric Allier
    • G01N33/483G01N15/14G03H1/04G03H1/00
    • A method for observing a sample (10), the sample lying in a plane of the sample defining radial coordinates, the method comprising the following steps: a) illuminating the sample using a light source (11), able to emit an incident light wave (12) that propagates toward the sample along a propagation axis (Z); b) acquiring, using an image sensor (16), an image (I0) of the sample (10), said image being formed in a detection plane (P0), the sample being placed between the light source (11) and the image sensor (16), such that the incident light wave sees an optical path difference, parallel to the propagation axis (Z), by passing through the sample; c) processing the image acquired by the image sensor; wherein the processing of the acquired image comprises taking into account vectors of parameters, respectively defined at a plurality of radial coordinates, in the plane of the sample, each vector of parameters being associated with one radial coordinate, and comprising a term representative of an optical parameter of the sample, at least one optical parameter being an optical path difference induced by the sample at the radial coordinate, the vectors of parameters describing the sample.