Methods of forming direct and decorative illumination
View Patent ↗In various embodiments, direct illumination is provided from a primary light emitter and decorative illumination is provided from a secondary light emitter illuminating a shade.
1. A method of illumination from a light source comprising a primary light emitter, a secondary light emitter different from the primary light emitter, and a shade, the method comprising:
providing direct illumination from the primary light emitter by transmitting light emitted by the primary light emitter through a first portion of the shade substantially without modification of the light emitted by the primary light emitter;
illuminating a second portion of the shade, different from the first portion, with light from the secondary light emitter;
modifying the light illuminating the second portion of the shade; and
transmitting the modified light through the second portion of the shade, thereby forming at least a portion of decorative illumination emitted in a direction different from a direction of the direct illumination,
wherein the shade comprises a phosphor, and modifying the light illuminating the second portion of the shade comprises converting a wavelength of light from the secondary light emitter to a different wavelength, the converted light exiting the shade and forming at least a portion of the decorative illumination.
2. The method of claim 1 , wherein the shade is disposed around and spaced apart from the secondary light emitter.
3. The method of claim 1 , wherein the shade is disposed around and spaced apart from the primary light emitter.
4. The method of claim 1 , wherein the decorative illumination consists essentially of the converted light.
5. The method of claim 1 , wherein the decorative illumination comprises a mixture of the converted light and unconverted light from the secondary light emitter.
6. The method of claim 1 , wherein modifying the light illuminating the second portion of the shade comprises at least one of blocking a portion of the light from the secondary light emitter, reflecting a portion of the light from the secondary light emitter, or diffracting a portion of the light from the secondary light emitter.
7. The method of claim 1 , wherein the first portion of the shade is substantially transparent.
8. The method of claim 1 , wherein providing direct illumination comprises emitting at least a portion of light from the primary light emitter through an opening in the shade.
9. The method of claim 1 , wherein the primary light emitter comprises at least one light-emitting diode.
10. The method of claim 1 , wherein the secondary light emitter comprises at least one light-emitting diode.
11. The method of claim 1 , wherein the direct illumination is distinct from the decorative illumination in terms of at least one of intensity or color.