Provided is a light source apparatus that is small and lightweight, has high light utilization efficiency, and is easily utilizable as a modularized, planar light source. The light source apparatus 10 has a light source unit including a plurality of LED elements 14, a LED collimator 15 including a plurality of collimator elements each arranged on a light-emitting axis of each of the plural LED elements 14, and a light guide 17 disposed on an emission side of the LED collimator 15. The light guide 17 includes an incidence portion 171 having an incidence surface on which light on the light-emitting axis from the LED elements 14 is incident, and an emission portion 173c having an emission surface emitting light, and has a free-form surface shape for realizing predetermined light distribution control on at least one of the incidence surface and the emission surface.


    Access

    Download


    Export, share and cite



    Title :

    Light source apparatus and head up display apparatus


    Contributors:

    Publication date :

    2021-04-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF , Funktionsmerkmale oder Einzelheiten von Leuchten oder Beleuchtungssystemen / G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien



    Light source apparatus and head up display apparatus

    NAGAI TOSHIMASA / SUGIYAMA TOSHINORI / ONO CHOHEI | European Patent Office | 2025

    Free access

    LIGHT SOURCE APPARATUS AND HEAD UP DISPLAY APPARATUS

    NAGAI TOSHIMASA / SUGIYAMA TOSHINORI / ONO CHOHEI | European Patent Office | 2023

    Free access

    LIGHT SOURCE APPARATUS AND HEAD-UP DISPLAY

    TOYOSHIMA TAKANOBU | European Patent Office | 2023

    Free access

    LIGHT SOURCE DRIVE DEVICE AND HEAD-UP DISPLAY APPARATUS

    KAWATE TAKAO / HATA MAKOTO / KURAISHI TOMOYA | European Patent Office | 2018

    Free access

    Light source apparatus, and information display system and head-up display apparatus using the same

    HIRATA KOJI / SUGIYAMA TOSHINORI / FUJITA KOJI et al. | European Patent Office | 2025

    Free access