Glass used for optical element for concentrating solar power generation apparatus, optical element for concentrating solar power generation apparatus and concentrating solar power generation apparatus using the same

摘要

Provided are a glass which is used in an optical element for a concentrating photovoltaic power generation apparatus, has excellent weather resistance, and can be easily processed into a complicated shape; an optical element for a concentrating photovoltaic power generation apparatus using the glass; and a concentrating photovoltaic power generation apparatus. The glass used in an optical element for a concentrating photovoltaic power generation apparatus contains, in % by mass, 30 to 80% SiO2, 0 to 40% B2O3, 0 to 20% Al2O3, not less than 0.1% Li2O, and not less than 0.1% ZrO2.