Light source selection

摘要

The invention relates to selecting a light source from a plurality of light sources, particularly to the selecting of a light source by pointing to it with a light source selection device. An embodiment of the invention relates to a light source selection device (10) comprising—at least one photosensor (36, 38, 40) with a field of view (20, 22, 24), wherein light (26, 28, 30) from one or more light sources (32, 34) may be received by the photosensor within the field of view, and—a photosensor output signal processing unit (42) being adapted to select one or more light sources by processing the light received by each photosensor. The present invention may be for example used to select appliances or devices or objects provided with the ability to transmit coded light in the ultra violet, visible or infra red spectra, for example lights, climate, curtains, kitchenware, etc.

主权项

1. A light source selection device comprising:
a first tunnel having a first length determining a first field of view; a second tunnel having a second length determining a second field of view, the second length being larger than the first length; a third tunnel having a third length determining a third field of view, the third length being larger than the second length; at least one photosensor assigned to each tunnel, wherein light from one or more light sources may be received by one or more of the assigned photosensors; wherein each of said first, second, and third tunnels is configured to transmit light from one or more light sources incident on one end of the respective tunnel within the respective field of view to the at least one photosensor arranged on the other end of the respect tunnel, and further wherein the first, second, and third fields of view differ from each other in their view angles (α, β, μ); and a photosensor output signal processing unit being configured to select one or more light sources by processing the light received by each photosensor, wherein said photosensor output signal processing unit is configured to process the received light by: (i) determining different light sources through decoding identifiers contained in the received light, and (ii) selecting one or more light sources from the determined different light sources.