A HOLOGRAPHIC PROJECTOR AND METHOD
    2.
    发明公开

    公开(公告)号:EP4400915A1

    公开(公告)日:2024-07-17

    申请号:EP23204585.6

    申请日:2023-10-19

    申请人: Envisics Ltd.

    IPC分类号: G03H1/22 G03H1/32

    摘要: There is provided holographic projector comprising a display device arranged to form a holographic wavefront by spatially modulating light in accordance with a hologram of a picture displayed thereon. The holographic projector further comprises a magnification system comprising a first lens and a second lens. The first lens is arranged form a holographic reconstruction of the picture by focusing the holographic wavefront towards / substantially at a front focal plane of the first lens. The holographic reconstruction of the picture comprises a plurality of pixels. The holographic projector further comprises a kinoform being disposed between the first lens and the second lens and being arranged to apply a phase-delay to each pixel of the holographic reconstruction such that the phase-delay applied to each pixel is different to the phase-delay of the adjacent pixels. The holographic projector further comprises a movement assembly arranged to move the kinoform such that a plurality of different phase-delays are applied to each pixel of the holographic reconstruction within the integration time of the human eye. The kinoform comprises an array of zones and is arranged such that the width and / or the height of each zone is substantially equal to the distance between adjacent pixels of the holographic reconstruction.