Method And Apparatus For A Light Source

A method for making a plurality of light-emitting devices, the method comprising:

• attaching a plurality of light source dies on a substrate;
• aligning a casting member having at least one cavity to the substrate such that the light source dies are enclosed within the at least one cavity;
• dispensing a transparent encapsulant into the at least one cavity encapsulating the light source die;
• curing the transparent encapsulant into solid-form to form an optical coupling layer;
• premixing an encapsulant in liquid-form having a wavelength-converting material;
• dispensing the encapsulant into the at least one cavity to form an encapsulation layer;
• allowing the wavelength-converting material to precipitate, forming thereon a high density layer and a low density layer within the encapsulation layer, wherein the high density layer comprises the wavelength-converting material precipitated on one side and the low density layer comprises the wavelength-converting material suspending in particle form;
• curing the encapsulation layer into solid form;
• removing the casting member;
• and
• isolating each individual light-emitting device.

A light source package, comprising:

• a plurality of conductors;
• at least one light source die attached on one of the conductors;
• a wavelength converting layer;
• an optical coupling layer separating the at least one light source die from the wavelength converting layer;
• wherein the wavelength converting layer further comprises a low density layer having wavelength converting particles suspended within the layer;
• and
• wherein the wavelength converting layer further comprises a high density layer connected to the low density layer having precipitated wavelength converting particles.

A flash system for use in a mobile device, comprising:

• a light source configured to emit light;
• a wavelength converting layer;
• a transparent separation layer encapsulating the light source and configured to distance the light source away from the wavelength converting layer;
• and
• a controller circuit adapted for arrangement within the mobile device and electrically coupled with the light source for activating the light source to flash the light;
• wherein the wavelength converting layer further comprises a low density layer having wavelength converting particles suspended within the layer;
• wherein the wavelength converting layer further comprises a high density layer connected to the low density layer and having precipitated wavelength converting particles;
• and
• wherein the light emitted from the light source has a narrow spectrum, and the light source is coupled with the wavelength converting layer through the transparent separation layer for converting the narrow spectrum light to broad spectrum light.