公开(公告)号：US20150330604A1

公开(公告)日：2015-11-19

申请号：US14809629

申请日：2015-07-27

Applicant: DEXERIALS CORPORATION

Inventor： Tsubasa TSUKAHARA ,  Ryo KASEGAWA ,  Yasushi ITO ,  Naoji NADA

IPC: F21V9/16 ,  G02B1/14 ,  G02F1/1335

CPC classification number: G02B1/14 ,  F21V9/30 ,  G02B6/0038 ,  G02F1/1336 ,  G02F1/133603 ,  G02F1/133606 ,  G02F2001/133614

Abstract: An optical member includes a plate like light diffusion member having a light incidence surface and a light emitting surface opposed each other, a phosphor layer provided directly on the light emitting surface of the light diffusion member and containing a phosphor that converts a color light to another color light, and a protection layer formed on a surface on the side opposite to the light diffusion member, of the phosphor layer. A moisture vapor transmission rate of the light diffusion member is 2 g/m2/day or less.

Abstract translation: 光学构件包括具有光入射表面和彼此相对的发光表面的板状光漫射构件，荧光体层直接设置在光漫射构件的发光表面上并且包含将彩色光转换为另一个的荧光体 彩色光，以及形成在荧光体层的与光漫射构件相反的一侧的表面上的保护层。 光扩散部件的湿气透过率为2g / m 2 /天以下。