The lighting device comprises an optical block having a coupling portion with a coupling face which is arranged to couple light into the optical block and a waveguide portion extending away from the coupling portion and designed to guide the light by multiple reflection between an upper face and a lower face of the waveguide portion. The optical block also comprises a holographical optical element that is formed in the waveguide portion and is designed to reconstruct a hologram by means of the light.


    Access

    Download


    Export, share and cite



    Title :

    COMPACT PHOTOMETRIC APPARATUS FOR RECONSTRUCTING A HOLOGRAM


    Contributors:

    Publication date :

    2025-06-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



    Compact photometric measurement device for reconstructing holograms

    COOL SIMON | European Patent Office | 2024

    Free access

    VEHICULAR HOLOGRAM APPARATUS

    LEAL SAUL ALEJANDRO | European Patent Office | 2025

    Free access

    Zero-Padding Number of Convolution Approach and Angular Spectrum for Reconstructing Microscopic Hologram

    Li, J. / Wang, X. / Gao, J. et al. | British Library Online Contents | 2014



    Measuring satellite antennas with a compact hologram test range

    Saily, J. / Ala-Laurinaho, J. / Hakli, J. et al. | IEEE | 2002