Patent ID: 7534002
Filing Date: 2009-05-19
Classification: F21K,F21V,F21Y,H01L,Y10S

Abstract:
1. A lighting device, comprising: a light-emitting diode lamp comprising a light-emitting diode device sealed by a glass sealing part; and a fluorescent layer disposed on a side of an illuminated object of the light-emitting diode lamp, wherein the fluorescent layer radiates a wavelength-converted light by being excited by light emitted from the light-emitting diode device, wherein a space is formed between the light-emitting diode lamp and the fluorescent layer, and wherein the light-emitting diode device comprises a p-contact electrode, the p-contact electrode comprising a conductive oxide film comprising a same thermal expansion coefficient as a semiconductor material composing the light-emitting diode device.