Patent ID: 8348468

Claim:
A light emitting device comprising: a substrate; a semiconductor laser diode to emit a laser beam, the semiconductor laser diode is provided in contact with the substrate; a luminescent component being separated from the semiconductor laser diode and from the substrate, the luminescent component having a recess, the luminescent component absorbing the laser beam incident to the recess to emit white light, the luminescent component includes phosphors, the luminescent component has a structure in which a plurality of luminescent composites each containing different kinds of phosphors are concentrically stacked into a spherical shape, and a center of the spherical shape coincides with the bottom of the recess; and a transparent cover attached to the substrate and to cover the luminescent component with a space between the transparent cover and the luminescent component, wherein the device illuminates a backside of the device with white light in addition to a front side.