Lighting device, and method of operating a lighting device
AssigneeKoninklijke Philips Electronics N.V.
InventorThomas Luce
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Abstract
A lighting device with a light source and a first reflector which directs light provided by the light source towards at least two focal points in the operational state, is to be constructed such that the light path to one of the focal points can be obstructed without thermal problems arising. A second reflector is provided which diverts away at least partly the light guided by the first reflector to a first of the two focal points towards the second one of the two focal points, directly or indirectly, as desired.
Claims11
A lighting device (10) with a light source (12) and a first reflector (18) which guides light provided by the light source (12) to at least two focal points (22, 24) when in the operational state, characterized in that at least one second reflector (34) is provided for optionally diverting away at least partly, directly or indirectly, the light which was guided by the first reflector (18) to a first of the two focal points (24) towards the second one of the two focal points (22, 24).
A method of operating a lighting device with a light source and a first reflector which guides light provided by the light source to at least two focal points when in the operational state, characterized in that the light guided to a first of the two focal points is diverted away at least partly towards the second one of the two focal points, if so desired.
Dependencies are inferred from the claim text.