Abstract:
The present disclosure is directed to inventive methods and apparatus for lighting control and for providing effects upon activation/deactivation. For example, various methods and apparatus are described for controlling various selected properties of light emitted by an LED-based lighting unit (100) with multiple LEDs (102) using, for example, a dimmer switch (101) and/or a predefined sequence of energizing LEDs.
Abstract:
Disclosed is a product comprising a luminous surface, the product comprising a light guide (10) providing said luminous surface, said light guide comprising a plurality of scattering elements (12) for producing a substantially homogeneous light output across said luminous surface; and a first solid state lighting element (20) arranged to emit a beam of light (30) into the light guide; wherein the light guide further comprises a body (40) arranged to create a region (50) in the light guide shaded from said beam.