CAJ | 학술논문

挑选国内某知名荧光粉企业的三种YAG荧光粉作为研究对象，三种样品的激发光谱相同，中心粒径（D50）分别为9.3、13.6、16.7μm，用这三种荧光粉，在相同粉胶质量比，相同点胶量的情况下，使用3014型号支架，制作出白光LED灯珠样品。使用分光分度计分别测量老化前后样品的各项光学参数。试验结果显示：随着荧光粉中心粒径的增大，色温向着高色温方向移动；当色温相同时，随着中心粒径的增大，光通量随之增大，使用100 mA电流加速老化一个星期情况下，随着荧光粉粒径的增大，光衰逐渐减小。
도선국내모지명형광분기업적삼충YAG형광분작위연구대상，삼충양품적격발광보상동，중심립경（D50）분별위9.3、13.6、16.7μm，용저삼충형광분，재상동분효질량비，상동점효량적정황하，사용3014형호지가，제작출백광LED등주양품。사용분광분도계분별측량노화전후양품적각항광학삼수。시험결과현시：수착형광분중심립경적증대，색온향착고색온방향이동；당색온상동시，수착중심립경적증대，광통량수지증대，사용100 mA전류가속노화일개성기정황하，수착형광분립경적증대，광쇠축점감소。
Three kinds of YAG phosphor is chosen from a famous phosphor enterprise in China as research objects. The samples have same laser spectrum and central particle sizes (D50) are 9.3μm, 13.6μm and 16.7μm respectively. At the condition of same filler-asphalt mass ratio and bonding volume, with the phosphor and 3014 type stand, white light LED lamp bead samples are produced. Optical parameters of the samples before and after aging are measured respectively by a spectrophotometer. Test results show that with the increasing of the center particle size of phosphor, color tem-perature approaches to the direction of high color temperature. When color temperature is constant, with the increasing of center particle size, luminous flux increases. Luminous decay reduces gradually with the increasing of phosphor particle size at the condition of one week accelerating aging time and 100 mA current.