FLIP-CHIP SIDE EMITTING LED

摘要

Application of a wavelength conversion element is substantially independent of the fabrication of a side-emitting light emitting device. In an example embodiment, the wavelength conversion element is situated around the periphery of a non-wavelength converting lightguide that is situated above the light emitting surface. One or more specular and/or diffusing reflectors are used to direct the light in the lightguide toward the wavelength conversion element at the periphery. In another embodiment, an interference filter may be used to provide predominantly side-emitted light at interfaces between the elements of the light emitting device.

主权项

1. A side-emitting device comprising:
a light emitting element having a light emitting surface that emits light in an upward direction, a non-wavelength-converting lightguide element that is situated above the light emitting surface and receives the light emitted from the light emitting element, one or more specular reflectors combined with one or more diffuse reflectors situated above the lightguide element that serve to direct the light in the lightguide element to exit from one or more side surfaces of the lightguide element, one or more wavelength conversion elements situated adjacent to at least one of the one or more side surfaces of the lightguide element, that receive the light emitted by the lightguide element and convert some or all of the light to light of a different wavelength.