Patent ID: 7295372
Filing Date: 2007-11-13
Classification: F21S,F21V,F24S,G02B,Y02E

Abstract:
1. A panel for mounting on a building comprising a solar ray collecting device, said panel is further arranged to be substantially transparent to a substantial part of the indirect, or ambient, light so that said panel, when mounted on a building, allows ambient light into said building and collects direct sun light falling on said panel, said solar ray collecting device is arranged to collect a substantial part of the direct sun light falling on said panel and direct said collected sun light on a light transportation means or a light transformation means, said solar ray collecting device is a lens arrangement having optical lenses for focusing said direct sunlight onto said light transportation means or light transformation means, and wherein said lenses in said lens arrangement is provided to allow ambient daylight to pass said panel to lit a space in said building with a natural light, wherein, said lens arrangement comprises, in light propagating direction, first lenses arranged side by side having first substantially planar surfaces and second convex surfaces, second lenses arranged side by side having third concave surfaces and fourth substantially flat surfaces so that direct sunlight passes first, second, third and fourth surfaces in said order, and said first and second lenses are displaceable in relation to each other in at least a first direction.