Patent ID: 11946640
Assignee: LUMILEDS, LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC F  H  B  G | IPC F  H

Claim 8:
9. A light source workpiece for manufacturing a plurality of light sources, the light source workpiece comprising:
a substrate;
a plurality of first LED dies having bottom surfaces on the substrate and configured to emit light having a first die color when at least one of the plurality of first LED dies is turned on, and covered by a first dome-shaped filling on all surfaces except the bottom surface, the first dome-shaped filling comprising a first phosphor such that the light having the first die color is converted to light having a first illuminous color when at least one of the plurality of first LED dies is turned on; and
a plurality of second LED dies having bottom surfaces on the substrate and configured to emit light having a second die color when at least one of the plurality of second LED dies is turned on, and covered by a second filling, the second filling extending to the first dome-shaped filling, while leaving at least a portion of a top surface of the first dome-shaped filling exposed from the second filling, and comprising a second phosphor such that the light having the second die color is converted to light having a second illuminous color that has a higher absorption energy than an illumination energy of the first illuminous color and passes around the first dome-shaped filling unconverted by the first dome-shaped filling,
each light source of the light source workpiece comprising at least one of the plurality of first LED dies and at least one of the plurality of second LED dies.