The invention provides a light emitting device capable of preventing the generation of thermal damage caused by external light without reducing the light emitting function. A light emission device (20) is provided with: a light source (24); an optical member (27) that transmits or reflects the light emitted from the light source (24) to enlarge the light and irradiate the light to the outside; and an optical isolator (70) capable of transmitting light but preventing external light from the outside from entering the light source (24).

    本发明提供能够在不使光出射功能降低的前提下防止外界光导致的热伤害的产生的光出射装置。光出射装置(20)具备:光源(24);光学构件(27),其通过使从光源(24)射出的光透过或反射而将光扩大并向外部照射;以及光隔离器(70),其能够使光透过但能够防止来自外部的外界光向光源(24)射入。


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    Title :

    LIGHT EMITTING DEVICE, HEAD-UP DISPLAY, VEHICLE LAMP, AND PROJECTOR


    Additional title:

    光出射装置、平视显示器、车辆用灯具、以及投影仪


    Contributors:

    Publication date :

    2022-05-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    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 / G09G Anordnungen oder Schaltungen zur Steuerung oder Regelung von Anzeigevorrichtungen mit statischen Mitteln zur Darstellung veränderlicher Informationen , ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION



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