Abstract:
A lighting apparatus includes a wavelength converting apparatus. The wavelength converting apparatus includes a hollow tube and a wavelength converting material. The hollow tube has an accommodating chamber. The wavelength converting material is positioned in the accommodating chamber.
Abstract:
An electrode structure includes at least one reflection layer, a barrier layer, and a conductive pad. The barrier layer includes a first barrier layer and a second barrier layer. The first and second barrier layers are stacked on the reflection layer in sequence. The first and second barrier layers are made of different materials. The conductive pad is located on the barrier layer.