Light-emitting device and light mixing device

Abstract

Disclosed is a light-emitting device comprising: a carrier; a light-emitting element disposed on the carrier; a first light guide layer covering the light-emitting element, and disposed on the carrier; a wavelength conversion and light guide layer covering the first light guide layer and the light-emitting element, and disposed on the carrier; and a low refractive index layer disposed between the first light guide layer and the wavelength conversion and light guide layer; wherein the first light guide layer comprises a gradient refractive index, the wavelength conversion and light guide layer comprises a dome shape structure and is used to convert a wavelength of light emitted from the light-emitting element and transmit light, and the low refractive index layer is used to reflect light from the wavelength conversion and light guide layer.

Dependencies are inferred from the claim text.