Back to results
US 2004/0164675 A1Published application
White light source from light emitting diode
AssigneeHarvatek Corporation
InventorsBily Wang, Jonnie Chuang, Yann Lee
Life of this patent
Estimating the term…
Abstract
A white light source is obtained by converting short wavelength color light emitted from a light emitting diode (LED). The conversion is achieved by covering the LED chip with a fluorescent glue. The LED chip is mounted on a split substrate, and the outer ends of the substrate serve as terminals for the LED. A wall may be erected around the LED chip to contain the fluorescent glue, and another transparent glue may be used to cover the fluorescent glue for protection.
Claims9
A light emitting diode (LED) white light source, comprising:
- a light emitting diode chip having a bottom electrode and a second electrode, and emitting short wavelength color light;
- a split metal substrate having a first metal section and a second metal section, separate from each other, wherein said first metal section is mounted with said bottom electrode and said second section is connected to said second electrode;
- a fluorescent glue, covering said LED chip and inner ends of said first section and said second section, and converting said short wavelength color light into white light, and
- terminals for said LED formed by the outer ends of said first metal section and said second metal section, not covered by said fluorescent glue.
1 more element
Dependencies are inferred from the claim text.