To provide a light source device that is downsized, lightweight, high in light usage efficiency, and is modularized to be easily available as a planar light source.SOLUTION: A light source device 10 comprises: a light source unit that includes a plurality of LED elements 14; an LED collimator 15 that includes each of a plurality of collimator elements arranged on a light emission axis of each of the plurality of LED elements 14; and a light guiding body 17 that is arranged on a light emission side of the LED collimator 15. The light guiding body 17 includes: an incidence section 171 that has an incidence surface making light on the light emission axis from the LED element 14 incident; an emission section 173 that has an exit surface through which the light exits, and has a free curved surface shape for achieving prescribed light distribution control on at least one of the incidence surface and the emission surface.SELECTED DRAWING: Figure 30

    【課題】小型・軽量で、光利用効率が高く、モジュール化されて面状の光源として容易に利用可能な光源装置を提供する。【解決手段】光源装置10は、複数のLED素子14を含む光源部と、複数の各々のLED素子14の発光軸上に配置された複数の各々のコリメータ素子を含むLEDコリメータ15と、LEDコリメータ15の出射側に配置された導光体17とを備える。導光体17は、LED素子14からの発光軸上の光を入射する入射面を持つ入射部171と、光を出射する出射面を持つ出射部173とを含み、入射面または出射面の少なくとも一方に、所定の配光制御を実現するための自由曲面形状を有する。【選択図】図30


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    Title :

    LIGHT SOURCE DEVICE, AND HEAD-UP DISPLAY DEVICE


    Additional title:

    光源装置およびヘッドアップディスプレイ装置


    Contributors:

    Publication date :

    2019-01-10


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / G02B Optische Elemente, Systeme oder Geräte , OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS



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