Patent ID: 8242431
Filing Date: 2012-08-14
Classification: B60Q,F21V,F21Y,H05B

Abstract:
1. An automated de-icing system for a low power lighting device having a light emitting face, the system comprising: at least one detector for detecting conditions under which ice, frost or snow are likely to occur on the light emitting face; a heat transfer system for transferring heat to the light emitting face; and a controller for receiving data from the at least one detector and determining a likelihood of ice, frost or snow forming on the light emitting face, wherein the controller engages the heat transfer system if the likelihood of ice, frost or snow forming on the light emitting face exceeds a threshold; wherein the controller determines the likelihood of ice, frost or snow forming on the light emitting face according to different relative weights of a plurality of detectors of the at least one detector.