PROBLEM TO BE SOLVED: To suppress occurence of a bright line in a region in which different light-emitting regions are overlapped with each other.SOLUTION: A light-emitting device (1) includes a light guide plate (4) including: a first light-emitting region (A) corresponding to a first reflection region for reflecting light (L1); and a second light-emitting region (B) corresponding to a second reflection region for reflecting light (L2). In the light guide plate (4), a reflection amount of the first reflection region in the region in which the first reflection region and the second reflection region are overlapped attenuates gradually as approaching a boundary line (A') of the first reflection region.SELECTED DRAWING: Figure 2
【課題】異なる発光領域同士が互いに重なる領域に輝線が発生することを抑制する。【解決手段】本発明に係る発光装置(1)は、光(L1)を反射する第1反射領域に対応する第1発光領域(A)と、光(L2)を反射する第2反射領域に対応する第2発光領域(B)とを含む導光板(4)を備える。導光板(4)は、第1反射領域と第2反射領域とが重なる領域における第1反射領域の反射量が、第1反射領域の境界線(A’)に近づくにつれて徐々に減衰している。【選択図】図2
LIGHT GUIDE BODY AND LIGHT-EMITTING DEVICE
導光体および発光装置
2016-09-01
Patent
Electronic Resource
Japanese
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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