Patent ID: 11947151
Assignee: DESIGN LED PRODUCTS LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  B | IPC B  F

Claim 10:
11. A method of generating a homogeneous color light output, the method comprising:
optically coupling at least first and second spatially separated light outputs into a light guide, wherein the first light output is at a first wavelength, and the second light output is at a second wavelength that is different from the first wavelength;
arranging for a portion of the two or more light outputs to exit the light guide via a light output surface; and
providing the light guide with:
at least one first wavelength dependent modification feature located on a first area of the light output surface and configured to selectively modify an intensity of the first of the at least first and second spatially separated light outputs; and
at least one second wavelength dependent modification feature located on a second area of the light output surface and configured to selectively modify the intensity of the second of the at least first and second spatially separated light outputs.