分享好友 知识库首页 频道列表

Rare earth-free white illumination device

2025-06-20 23:452810下载
文件类型:PDF文档
文件大小:299K
PROBLEM TO BE SOLVED : To provide a white lighting device not including rare earth capable of emitting white light having an average color rendering index Ra of 80 or more.SOLUTION : A light-emitting portion emitting light of 250 nm-410 nm, a Mn-based fluorescent body having both or one of Mnand Mnas an emission center or a transparent resin including the fluorescent body, and a fluorescent body of AVO(A is alkali metal essentially including Cs and optionally including Li, Na, K, Rb, and d=0.99-1.04) or a transparent resin including the fluorescent body, are successively arranged in this order.SELECTED DRAWING : Figure 2


请登录查看


反对 0
举报 0
收藏 0
打赏 0
评论 0