公开(公告)号：US20160327717A1

公开(公告)日：2016-11-10

申请号：US15215599

申请日：2016-07-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKIRA HASHIYA ,  TAKU HIRASAWA ,  YASUHISA INADA ,  YOSHITAKA NAKAMURA ,  MITSURU NITTA ,  TAKEYUKI YAMAKI ,  MASAHIRO NAKAMURA

IPC: F21V8/00

CPC classification number: G02B6/0003 ,  G02B5/1809 ,  G02B6/0025 ,  G02B6/0036 ,  G02B6/0038 ,  G02B6/0055 ,  G02B6/0056 ,  H01L33/508

Abstract: A light-emitting device includes a photoluminescent layer emitting light in response to excitation light, a light-transmissive layer located on the photoluminescent layer, and a light guide guiding the excitation light to the photoluminescent layer. At least one of the photoluminescent layer and the light-transmissive layer has a submicron structure having at least projections or recesses arranged perpendicular to the thickness direction of the photoluminescent layer. The light emitted from the photoluminescent layer includes first light having a wavelength λa in air. The distance Dint between adjacent projections or recesses and the refractive index nwav-a of the photoluminescent layer for the first light satisfy λa/nwav-a

Abstract translation: 发光装置包括响应于激发光发光的光致发光层，位于光致发光层上的透光层和将激发光引导到光致发光层的光导。 光致发光层和透光层中的至少一个具有至少具有垂直于光致发光层的厚度方向布置的突起或凹陷的亚微米结构。 从光致发光层发射的光包括在空气中具有波长λa的第一光。 相邻的凸部或凹部之间的距离Dint以及第一光的光致发光层的折射率nwav-a满足λa/ nwav-a