OPTICAL LAYER FOR A LIGHT-ADJUSTING TYPE SOLAR POWER-GENERATING MODULE, LIGHT-ADJUSTING TYPE SOLAR POWER-GENERATING MODULE AND LIGHT-ADJUSTING TYPE SOLAR POWER-GENERATING PANEL

摘要

An optical layer for a light control type solar photovoltaic module, a light control type solar photovoltaic module, and a light control type solar photovoltaic panel have an excellent directionality to the sunlight are provided.;An optical layer 4 for a light control type solar photovoltaic module includes an entrance surface 11 and an exit surface 12 and is arranged opposite photovoltaic cells 6 that convert light into electric energy. A number of prismatic optical elements are formed in at least one of the entrance surface 11 and the exit surface 12, each of the prismatic optical elements is on a common plane S1 defined by a common base shared by the prismatic optical elements adjacent to each other, and prism axes 7 of some of the prismatic optical elements are inclined toward one side with respect to a direction perpendicular to the common plane while prism axes 7' of at least some of the other prismatic optical elements are inclined toward the other side with respect to the direction perpendicular to the common plane S1.