公开(公告)号：US20020011781A1

公开(公告)日：2002-01-31

申请号：US09861190

申请日：2001-05-18

Applicant: OSRAM SYLVANIA Inc.

Inventor： Keith A. Klinedinst ,  Robert F. Clark

IPC: H01J001/62 ,  H01J063/04

CPC classification number: C09K11/025 ,  C09K11/584 ,  H05B33/14 ,  Y10T428/2991 ,  Y10T428/2993

Abstract: A phosphor particle has thereon a moisture resistant treatment of a metallic nitride. By moisture resistant is meant a condition allowing the phosphor particle to function in a humid atmosphere for a significantly longer period of time than an untreated particle. The method of making such phosphors comprises the steps of introducing an inert gas into a reaction vessel; charging phosphor particles into the reaction vessel; heating the reaction vessel to a reaction temperature; introducing a nitride coating precursor into the reaction vessel; introducing a co-reactant into the reaction vessel; and maintaining the inert gas flow, co-reactant flow and precursor supply for a time sufficient to moisture-proof the phosphor particles. The nitride treated phosphor particles produced by this method, which can include the deposition of a nitride coating on the particles, have excellent efficacy ratings and strong luminance values in lamps after 100 hours use in high humidity (i.e., >95%).

Abstract translation: 荧光体颗粒上具有金属氮化物的防潮处理。 防潮是指允许荧光体颗粒在潮湿环境中比未处理颗粒显着更长的时间段运行的条件。 制造这种磷光体的方法包括将惰性气体引入反应容器中的步骤; 将磷光体颗粒装入反应容器中; 将反应容器加热至反应温度; 将氮化物涂层前体引入反应容器中; 将共反应物引入反应容器中; 并保持惰性气体流动，共反应物流和前体供应足以防止荧光体颗粒的时间。 通过该方法制造的氮化物处理的荧光体颗粒，其可以包括在颗粒上沉积氮化物涂层，在高湿度（即> 95％）使用100小时后，灯具具有优异的功效等级和强烈的亮度值。