To provide a light emitting device which includes a film light source whose light emitting efficiency is high and which does not impair a see-through property.SOLUTION: A light emitting device includes: a film light source 1 in which an LED chip (light emitting element)3 is disposed inside a translucent film 11, and which emits the light emitted in the LED chip 3 from both front and back surfaces of the translucent film 11; and a translucent back surface lens 2 integrated on the back surface of the film light source 1. The back surface lens 2 includes a translucent back surface step (optical step) 22 for internally reflecting the light emitted from the back surface of the film light source 1 toward the front surface side.SELECTED DRAWING: Figure 4
【課題】発光効率が高く、かつ透視性を損なうことがないフィルム光源を備える発光装置を提供する。【解決手段】透光性フィルム11の内部にLEDチップ(発光素子)3を配設し、LEDチップ3で発光した光を透光性フィルム11の正面と背面の両面から出射するフィルム光源1と、フィルム光源1の背面に一体化された透光性の背面レンズ2とを備える。背面レンズ2はフィルム光源1の背面から出射される光を正面側に向けて内面反射する透光性の背面ステップ(光学ステップ)22を備える。【選択図】 図4
LIGHT EMITTING DEVICE INCLUDING FILM LIGHT SOURCE
フィルム光源を備える発光装置
23.01.2020
Patent
Elektronische Ressource
Japanisch
IPC: | F21S Ortsfeste Leuchten , NON-PORTABLE LIGHTING DEVICES / 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 / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES |
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