Sharp Kabushiki Kaisha Corporation

Kyohko Azumada

Akiyoshi Fujii

A solar cell module includes a plurality of electric power generation units. Each of the plurality of electric power generation units includes a solar cell element and a light guide unit having a first surface and a second surface positioned opposite to the first surface and configured to guide light toward the solar cell element between the first surface and the second surface. The plurality of the light guide units included in the plurality of electric power generation units include a first light guide unit having a first fluorescent material that emits first light upon receipt of light incident from the first surface, and also includes at least one light guide unit of a second light guide unit having a second fluorescent material that emits second light having a different wavelength from the first light upon receipt of light incident from the first surface and a third light guide unit in which a shape of the second surface is designed so that part of light incident from the first surface is reflected from the second surface and travels in a direction non-parallel to that before reflection.

Solar cell module and solar power generation apparatus

An illuminator according to the present invention includes a backlight () for emitting light containing first and second polarization components having polarization directions which are orthogonal to each other; and a selective reflection polarizer () having a reflectance for the first polarization component which is higher than a transmittance for the first polarization component, and having a transmittance for the second polarization component which is higher than a reflectance for the second polarization component. The selective reflection polarizer () includes a transparent substrate () and a plurality of metal wires () arrayed on the transparent substrate (). The ratio of a width of the metal wires () to a pitch of the metal wires () is greater than 30% and equal to or less than 42%, and the backlight () has a reflectance of 0.6 or more.

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Osaka, Japan

Kyohko Azumada