White light source system

A light emitting device, comprising:

• a substrate including a wiring network;
• a light source disposed on the substrate;
• a cover disposed on the light source and covering the substrate;
• and
• a controller configured to electrically control the light source,
• wherein the light source comprises:
• a first light emitter disposed on the substrate and configured to emit a first light having a first chromaticity point on an xy chromaticity diagram;
• and
• a second light emitter disposed on the substrate and configured to emit a second light having a second chromaticity point on the xy chromaticity diagram,
• wherein the first light emitter has a first converter comprising a first wavelength converters, each wavelength converter of the first converter having different half-value widths,
• wherein the second light emitter has a second converter comprising a second wavelength converters, each wavelength converter of the second converter having different peak wavelengths,
• wherein a distance between peak wavelengths of at least two wavelength converters of the second converter is 150 nm or less,
• wherein a thickness of the second converter is in a range of 0.07 mm to 1.5 mm, and
• wherein a light emission spectrum of the wavelength converters of the first converter includes at least one wavelength region where a portion of each light emission spectrum overlaps another light emission spectrum.

A light emitting device, comprising:

• a substrate including a wiring network;
• a light source disposed on the substrate;
• a cover disposed on the light source and covering the substrate;
• and
• a controller configured to electrically control the light source,
• wherein the light source comprises:
• a first light emitter disposed on the substrate and configured to emit a first light having a first chromaticity point on an xy chromaticity diagram;
• and
• a second light emitter disposed on the substrate and configured to emit a second light having a second chromaticity point on the xy chromaticity diagram,
• wherein the first light emitter has a first converter comprising a first wavelength conversion particles, at least one of the wavelength conversion particles of the first converter having different half-value width,
• wherein the second light emitter has a second converter comprising a second wavelength conversion particles, at least one of the wavelength conversion particles of the second converter having different peak wavelength,
• wherein a distance between peak wavelengths of at least two wavelength conversion particles of the second converter is 150 nm or less,
• wherein a thickness of the second converter is in a range of 70 um to 1500 um, and
• wherein the controller controls light emission intensity emitted from at least one of the first light emitter or the second light emitter via the wiring network.