中华口腔医学研究杂志（电子版）
中華口腔醫學研究雜誌（電子版）
중화구강의학연구잡지（전자판）
CHINESE JOURNAL OF STOMATOLOGICAL RESEARCH(ELECTRONIC VERSION)
2014年
4期
281-285
,共5页
宋洁文%姚科%邱颖宁%李彦
宋潔文%姚科%邱穎寧%李彥
송길문%요과%구영저%리언
发光二极管%比色板%光源%颜色
髮光二極管%比色闆%光源%顏色
발광이겁관%비색판%광원%안색
Light-Emitting Diode%Tooth shade guide%Lights%Colour
目的研究自制白光发光二极管（LED）矩阵光源光学参数及其对口腔比色版的色度值影响，为研发便携式LED口腔比色光源提供数据参考。方法采用波长主峰为450～470 nm单晶GaN蓝光LED矩阵，在其表面涂覆稀土钇铝石榴石（YAG）荧光粉并使用一定比例硅酸盐红色荧光粉调节色温的方法制作色温接近5500 K的连续光谱白光光源。使用4π结构积分球测试LED光源光学指数并了解其与D55标准照明体的拟合程度。并将此光源与人工日光D65标准光源作对照，观察二者对各3块口腔常用Vita 3D Master和Vita Classia比色板CIE L*、a*、b*色度值的影响，并用ΔE*94值对差别进行比较。结果自制白光LED光源光通量φ＝389.90 lm，色品坐标x＝0.3342、y＝0.3335，色温Tc＝5453 K，主波长λd＝600.2 nm，峰值波长λp＝455.0 nm，半宽度Δλp＝25.6 nm，显色指数Ra＝95.3。3块VITA 3D Master和VITA Classial 上同一色标L*、a*、b*均值在同一光源下两两比较差异无统计学意义（P＞0.05）。不同光源下VITA 3D Master和VITA Classial各色标间色差ΔE*94均值分别为1.58和0.96 NBS。结论自制白光LED矩阵光源达到D55标准照明体的色温和显色指数要求，能作为重组日光光源以替代自然日光应用于口腔临床。
目的研究自製白光髮光二極管（LED）矩陣光源光學參數及其對口腔比色版的色度值影響，為研髮便攜式LED口腔比色光源提供數據參攷。方法採用波長主峰為450～470 nm單晶GaN藍光LED矩陣，在其錶麵塗覆稀土釔鋁石榴石（YAG）熒光粉併使用一定比例硅痠鹽紅色熒光粉調節色溫的方法製作色溫接近5500 K的連續光譜白光光源。使用4π結構積分毬測試LED光源光學指數併瞭解其與D55標準照明體的擬閤程度。併將此光源與人工日光D65標準光源作對照，觀察二者對各3塊口腔常用Vita 3D Master和Vita Classia比色闆CIE L*、a*、b*色度值的影響，併用ΔE*94值對差彆進行比較。結果自製白光LED光源光通量φ＝389.90 lm，色品坐標x＝0.3342、y＝0.3335，色溫Tc＝5453 K，主波長λd＝600.2 nm，峰值波長λp＝455.0 nm，半寬度Δλp＝25.6 nm，顯色指數Ra＝95.3。3塊VITA 3D Master和VITA Classial 上同一色標L*、a*、b*均值在同一光源下兩兩比較差異無統計學意義（P＞0.05）。不同光源下VITA 3D Master和VITA Classial各色標間色差ΔE*94均值分彆為1.58和0.96 NBS。結論自製白光LED矩陣光源達到D55標準照明體的色溫和顯色指數要求，能作為重組日光光源以替代自然日光應用于口腔臨床。
목적연구자제백광발광이겁관（LED）구진광원광학삼수급기대구강비색판적색도치영향，위연발편휴식LED구강비색광원제공수거삼고。방법채용파장주봉위450～470 nm단정GaN람광LED구진，재기표면도복희토을려석류석（YAG）형광분병사용일정비례규산염홍색형광분조절색온적방법제작색온접근5500 K적련속광보백광광원。사용4π결구적분구측시LED광원광학지수병료해기여D55표준조명체적의합정도。병장차광원여인공일광D65표준광원작대조，관찰이자대각3괴구강상용Vita 3D Master화Vita Classia비색판CIE L*、a*、b*색도치적영향，병용ΔE*94치대차별진행비교。결과자제백광LED광원광통량φ＝389.90 lm，색품좌표x＝0.3342、y＝0.3335，색온Tc＝5453 K，주파장λd＝600.2 nm，봉치파장λp＝455.0 nm，반관도Δλp＝25.6 nm，현색지수Ra＝95.3。3괴VITA 3D Master화VITA Classial 상동일색표L*、a*、b*균치재동일광원하량량비교차이무통계학의의（P＞0.05）。불동광원하VITA 3D Master화VITA Classial각색표간색차ΔE*94균치분별위1.58화0.96 NBS。결론자제백광LED구진광원체도D55표준조명체적색온화현색지수요구，능작위중조일광광원이체대자연일광응용우구강림상。
Objective Optical parameters of a self-developed white Light-Emitting Diode (LED) array are measured to understand their impacts on colour values of shade guide for dental application . It is to provide data reference for portable LED shade guide light source . Methods White light source with continuous spectrum having 5500 K colour temperature is maded by coating yttrium aluminate garnet (YAG) on the surface of GaN LED array, which has emission wavelength at 450~470 nm range, and using certain percentage red phosphor silicate for colour temperature tuning . Optical parameters of such LED are measured by an integrating sphere with 4π structure. The results are compared with that of D55 standard light. This LED light source is also compared with D65 standard light by observing their impacts to CIE L*, a*, b*colour values of three commonly dental used Vita 3D Master and Vita Classia shade guide. Their differences of ΔE*94 are compared. Results The result shows the self-developed LED light source has optical flux φ=389.90 lm, chromaticity coordinates x=0.3342, y=0.3335, colour value Tc=5453 K, emission wavelength λd=600.2 nm, peak wavelength λp=455.0 nm, half-width Δλp=25.6 nm, colour rending index (CRI) Ra=95.3. The same mean colour value of L*, a*, b*of three VITA 3D Master and VITA Classial under the same light source has no statistical differences . The colour differences, which are mean ΔE*94, of VITA 3D Master and VITA Classial under different light sources are 1.58 NBS and 0.96 NBS, respectively. Conclusions Self-developed LED light array meets requirement of both colour temperature and CRI of D55 standard light. Therefore, it can be used on dental application to replace natural sun light as a reconstructed light source .
