20120106190 | LIGHT GUIDE FOCUSSING DEVICE AND METHOD - A device and method for directing light from a non directed light source into a forward direction with a required angular distribution. The device may comprise a tapered light guide, a front refractor and a back reflector. The wedge angle of the light guide is selected such that light incident upon the entrance of the light guide and exits the light guide and is directed either by the front refractor or the back reflector into the desired angular distribution. | 05-03-2012 |