Patent ID: 8939605
Filing Date: 2015-01-27
Classification: F21S,F21V,F21Y,H05B

Abstract:
1. A lighting system comprising: a plurality of controllable light emitting elements, a spreading optical element arranged in front of the plurality of light emitting elements to shape the light emitted from the lighting elements and defining an available angular emission range of light emitted from the spreading optical element, and a controller for controlling drive signals of each of the plurality of controllable light emitting elements, in order to select an angular subrange of the available angular emission range of light emitted from the spreading optical element by selecting the specific light emitting element wherein the controller varies the angular subrange of the available angular emission range of light emitted from the spreading optical element by controlling the light output for a subset of the plurality of controllable light emitting elements thereby modifying an output illumination pattern of the lighting system from a first light output emission angle to a second output emission angle different from the first light output emission angle; an indicator adapted to indicate a desired light pattern to the lighting system by emitting an indicator light onto a surface being illuminated by the lighting system, the lighting system including a light sensor to detect the indicator light on the surface being illuminated originating from the indicator, wherein the emitted indicator light from the indicator is a coded indicator light; wherein the controller is in connectivity with the sensor and is operable to adjust the lighting pattern based upon light information from the sensor.