A light projection lens includes: an inner surface which light emitted from a light source enters, and includes a first concave portion; and an outer surface from which the light exits. In a cross section parallel to an optical axis of the light emitted from the light source, the outer surface and the first concave portion have a difference in radius of curvature in at least a portion of the outer surface and the first concave portion. In a cross section perpendicular to the optical axis of the light emitted from the light source, the first concave portion has an elliptical shape. The light which exits from the outer surface is lesser in amount in an optical axis direction of the light emitted from the light source than in a direction different from the optical axis direction.


    Access

    Download


    Export, share and cite



    Title :

    LIGHT PROJECTION LENS AND MOBILE OBJECT


    Contributors:

    Publication date :

    2020-07-30


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / 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 / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04N PICTORIAL COMMUNICATION, e.g. TELEVISION , Bildübertragung, z.B. Fernsehen



    Light projection lens and mobile object

    KANAYAMA YOSHIHIKO / FUKUI ATSUSHI | European Patent Office | 2023

    Free access

    PROJECTION APPARATUS AND MOBILE OBJECT

    NAKAMURA KENTO / ABE ISSEI | European Patent Office | 2020

    Free access

    LIGHT PROJECTION LENS AND MOVABLE BODY

    KANAYAMA YOSHIHIKO / FUKUI KOJI | European Patent Office | 2020

    Free access

    PROJECTION LENS AND PROJECTION DEVICE

    MASUZAWA TOMONARI | European Patent Office | 2022

    Free access

    Projection device, mobile object, and method of setting projection device

    GOTOH TOKIKO | European Patent Office | 2021

    Free access