Abstract: In one embodiment, a light-emitting device having a reflector cup, a light source die, a wavelength-converting layer, an optical structure, and an encapsulant is disclosed. The wavelength-converting layer may be configured to convert a narrow band light emitted from the light source die into a broad band light before the light is directed towards a first direction. The optical element may be an air ring embedded within the encapsulant and may be arranged circumscribing the wavelength-converting layer. In another embodiment, a light-emitting device with extended wavelength-converting layer in place of the air ring is presented.

Abstract: In one embodiment, a light-emitting device having a reflector cup, a light source die, a wavelength-converting layer, an optical structure, and an encapsulant is disclosed. The wavelength-converting layer may be configured to convert a narrow band light emitted from the light source die into a broad band light before the light is directed towards a first direction. The optical element may be an air ring embedded within the encapsulant and may be arranged circumscribing the wavelength-converting layer. In another embodiment, a light-emitting device with extended wavelength-converting layer in place of the air ring is presented.

Abstract: In one embodiment, a light-emitting device having a reflector, a light source die, a light scattering member, a first encapsulant, and a second encapsulant is disclosed. The light scattering member may be configured to scatter light emitted from the light source die, before the light being transmitted into the second encapsulant where a lens surface is configured to collimate the light towards a first direction. The light scattering member may be light-scattering particles distributed uniformly within the first encapsulant, a roughened surface of the first encapsulant, and a deposited light scattering layer on the first encapsulant, air bubbles, or a substantially flat layer. The light scattering member may be provided outside a reflector cup.

Abstract: An illumination device is disclosed. The illumination device includes a light source and a remoter phosphor configured to alter the color of light emitted by the light source. The remoter phosphor is provided with a substantially hemispherical shape that substantially corresponds to a radiation pattern of the light source, which helps to reduce or eliminate the occurrence of the yellow ring phenomenon, among other things. Methods of manufacturing an illumination device are also disclosed.