A phase filter (101) comprises a structure of annular rings with rotational symmetry around the optical axis, the annular rings each having substantially parabolic cross-sections such that incident light beams are uniformly magnified on a focal plane and mutually overlap.


    Access

    Download


    Export, share and cite



    Title :

    Phase filter, imaging optical system, and imaging system


    Contributors:

    Publication date :

    2015-12-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / A61B DIAGNOSIS , Diagnostik / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



    PHASE FILTER, IMAGING OPTICAL SYSTEM, AND IMAGING SYSTEM

    SHIMANO TAKESHI / SAKITA KOUICHI / OOTA MITSUHIKO | European Patent Office | 2020

    Free access

    Phase filter, imaging optical system, and imaging system

    SHIMANO TAKESHI / SAKITA KOUICHI / OOTA MITSUHIKO | European Patent Office | 2018

    Free access

    PHASE FILTER, IMAGING OPTICAL SYSTEM, AND IMAGING SYSTEM

    SHIMANO TAKESHI / SAKITA KOUICHI / OOTA MITSUHIKO | European Patent Office | 2018

    Free access

    Phase filter, imaging optical system, and imaging system

    SHIMANO TAKESHI / SAKITA KOUICHI / OOTA MITSUHIKO | European Patent Office | 2021

    Free access

    Phase filter, imaging optical system, and imaging system

    SHIMANO TAKESHI / SAKITA KOUICHI / OOTA MITSUHIKO | European Patent Office | 2019

    Free access