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技術名稱 Technology
發明人 Inventor
蘇忠傑, 呂俊霖,
所有權人 Asignee 國立台灣科技大學

專利國家 Country 申請號 Application No. 專利號 Patent No. 中心案號 Serial No.
美國 12/607,713 US8008850B2 0980021US0
  點閱數:1330

技術摘要:
一種色溫可調之白光發光裝置,包括:一基板;一紫外光發光二極體、一紫光發光二極體與一藍光發光二極體,設置於該基板之不同部上並電性連接該基板;一螢光膠層,塗佈於該紫外光發光二極體、該紫光發光二極體與該藍光發光二極體之外圍;一全方位反射器,設置於該螢光膠層之上且對應該紫外光發光二極體、該紫光發光二極體與該藍光發光二極體;一介質,設置於該全方位反射器與該螢光膠層之間;一透明基板,設置於該全方位反射器上;以及一光擴散板,設置於該透明基板上。A color temperature tunable white light emitting device is provided, including a substrate with an ultraviolet light emitting diode, a purple light emitting diode, and a blue light emitting diode provided over the substrate. The UV LED, the purple LED and the blue LED are coated with a phosphor layer. An omnidirectional reflector is disposed over the phosphor layer. A medium layer is disposed between the omni-directional reflector and the phosphor layer. A transparent substrate is disposed over the omnidirectional reflector and an optical diffuser is disposed over the transparent substrate.

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