Abstract: A light guide panel assembly (10) comprises a translucent panel (12), and at least one light-emitting device (40) (such as an LED) which projects a divergent beam of light into the panel from a light-receiving edge (52) of the panel. A heatsink (22) may be provided, with a compressible, thermally-conductive element (20) disposed in compression against the heatsink and so as to urge the light-emitting device(s) against the light-receiving edge of the panel and to provide a thermal pathway between the light-emitting device(s) and the heatsink. The compressible element therefore serves the dual purposes of holding the light-emitting device in place and also assisting in conducting heat away from it.

Abstract: A solar panel including a flexible polymeric support element and a plurality of photovoltaic cells supported by the support element. At least some of the photovoltaic cells are spaced apart such that the flexible support element provides a hinge between the spaced apart photovoltaic cells. A plurality of bypass diodes are connected in parallel with the cells, so that if one of the cells ceases to operate, electrical current generated by the other cells is able to bypass the inoperative cell.