发明申请
US20110097833A1 LIGHT SOURCE INCLUDING A WAVELENGHT-CONVERETED SEMICONDUCTOR LIGHT EMITTING DEVICE AND A FILTER 有权
光源,包括波导转换半导体发光器件和滤波器

LIGHT SOURCE INCLUDING A WAVELENGHT-CONVERETED SEMICONDUCTOR LIGHT EMITTING DEVICE AND A FILTER
摘要:
A semiconductor light emitting device comprises a light emitting layer disposed between an n-type region and a p-type region. The light emitting layer is adapted to emit first light having a first peak wavelength. A first wavelength converting material is adapted to absorb the first light and emit second light having a second peak wavelength. A second wavelength converting material is adapted to absorb either the first light or the second light and emit third light having a third peak wavelength. A filter is adapted to reflect fourth light having a fourth peak wavelength. The fourth light is either a portion of the second light or a portion of the third light. The filter is configured to transmit light having a peak wavelength longer or shorter than the fourth peak wavelength. The filter is disposed over the light emitting device in the path of at least a portion of the first, second, and third light.
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