| 摘要 |
PROBLEM TO BE SOLVED: To suppress the temperature rise of a solar battery by equipping this filter with infrared-ray screen layers made of transmitting wavelength selecting agents which intercept the infrared rays in specified wavelength region, on one side or both sides of a transparent base material layer. SOLUTION: Infrared ray screen layers 2 made of the transmitting wavelength selecting agents constituted of zinc oxides or the like which intercepts the infrared ray L1 (1200<L1<300nm, or 1200<=L1<=3000nm) in the wavelength region of at least 1200-300nm are made on one side or both sides of a transparent base material layer 1. The temperature rise of the solar battery by heat beam can be suppressed by forming infrared ray screen layers 2 (filters), which transmit the beam of wavelength of 400-1200nm required for power generation and intercept the heat beam of wavelength of 1200-300nm unnecessary for power generation out of the solar ray, on the incidence side of the solar battery. |
