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    RECONSTRUCTION OF A WAVEFRONT OF A LIGHT BEAM CONTAINING OPTICAL VORTICES
    2.
    发明公开
    RECONSTRUCTION OF A WAVEFRONT OF A LIGHT BEAM CONTAINING OPTICAL VORTICES 审中-公开

    公开(公告)号：EP3951338A1

    公开(公告)日：2022-02-09

    申请号：EP20305898.7

    申请日：2020-08-04

    申请人： Université de Paris ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE ,  SORBONNE UNIVERSITE ,  Institut National de la Santé et de la Recherche Médicale

    发明人： GUILLON, Marc ,  BERTO, Pascal

    IPC分类号： G01J9/00

    摘要： A method for analyzing wavefront-gradient data of a light beam, the light beam containing at least one optical vortex in order to estimate the contribution of the optical vortices to the wavefront, the method comprising:
    providing a phase-gradient map g of the wavefront of the light beam,
    generating a Laplacian of a vector potential based on the phase gradient map g, the resulting Laplacian of the vector potential map, called "Laplacian map", exhibiting peaks,
    the location of each peak corresponding to the location of an optical vortex and the integral of the peak being proportional to a topological charge n of said optical vortex,
    computing a singular phase map ϕs based on the topological charge n and location of each optical vortex computed in steps i) and ii), the singular phase ϕs map being representative of the contribution of the optical vortex.

    OPTICAL SYSTEM COMPRISING A SPATIAL LIGHT MODULATOR
    3.
    发明公开
    OPTICAL SYSTEM COMPRISING A SPATIAL LIGHT MODULATOR 审中-公开
    OPTISCHES系统麻醉机EINEMRÄUMLICHENLICHTMODULATOR

    公开(公告)号：EP3111268A1

    公开(公告)日：2017-01-04

    申请号：EP15706237.3

    申请日：2015-02-24

    申请人： Centre National de la Recherche Scientifique (C.N.R.S.) ,  Université Paris Descartes ,  Institut National de la Santé et de la Recherche Médicale

    发明人： GUILLON, Marc ,  PAPAGIAKOUMOU, Eirini ,  EMILIANI, Valentina

    IPC分类号： G02B21/00 ,  G03H1/22

    CPC分类号： G02B27/0068 ,  G02B21/14 ,  G02B21/16 ,  G02B21/365 ,  G02B27/0025 ,  G03H1/0486 ,  G03H1/2205 ,  G03H1/2249 ,  G03H1/2294 ,  G03H2001/221 ,  G03H2001/2218 ,  G03H2001/2244 ,  G03H2210/12

    摘要： The invention concerns an optical system (10) comprising: - a spatial light modulator (13) comprising an array of controllable elements adapted for generating a modulated light beam (17) by diffracting an incident light beam (12), the modulated light beam (17) comprising a modulated part and an unmodulated "zero order" part, the modulated part carrying an image to be projected into a replay volume (18), - a control unit for applying a control signal to the controllable elements so as to control the modulated light beam (17) generated by the controllable elements, - a perturbing optical element (30) for introducing optical aberrations in the incident light beam (12) and/or the modulated light beam (17) so as to spread the unmodulated "zero order" part of the modulated light beam in the replay volume (18), the perturbing optical element (30) generating distortions in the image to be projected, wherein the control signal comprises an image signal component carrying data representative of the image to be projected and a correction signal component representative of a correction pattern for correcting the distortions generated by the perturbing optical element (30) in the image to be projected.

    摘要翻译： 本发明涉及一种光学系统（10），包括： - 空间光调制器（13），包括可控元件阵列，其适于通过衍射入射光束（12），调制光束 17）包括调制部分和未调制的“零级”部分，所述调制部分承载要投影到重放音量（18）中的图像， - 控制单元，用于向可控元件施加控制信号，以便控制 由可控元件产生的调制光束（17）， - 用于在入射光束（12）和/或调制光束（17）中引入光学像差的扰动光学元件（30），以便将未调制的“零” 扰动光学元件（30）产生在要投影的图像中的失真，其中控制信号包括载有表示 要投影的图像和校正信号分量，该校正信号分量表示用于校正由待扰动的图像中的扰动光学元件（30）产生的失真的校正图案。