I have a question I would like to ask and that is, is this device patentable by the gentleman in the article. http://www.haaretz.com/hasen/spages/890970.html. The reason I am asking is that in my understanding to gain a patent there has to be an improvement of some sort. In his device there is no improvement in the cell itself nore is there an improvement in the dish. He only put the two together to extract more power.
NASA has a similar device except instead of using a dish they use a flexible Fresno Len's made of silicon that pops open over the solar cells. The same premise is to concentrate light energy over the cell.