Patent ID: 8841377

Claim:
A glass fiber for reinforcing a polycarbonate resin comprising, as inorganic components in the whole glass fiber: from 50 to 60 mass % of silicon dioxide (SiO 2 ), from 10 to 15 mass % of aluminum oxide (Al 2 O 3 ), from 15 to 25 mass % of calcium oxide (CaO), from 4.1 to 5 mass % of titanium oxide (TiO 2 ), from 0 to 5 mass % of magnesium oxide (MgO), from 0 to 3.9 mass % of zinc oxide (ZnO), from 0 to 3.9 mass % of barium oxide (BaO), 0 mass % of zirconium oxide (ZrO 2 ), from 0 to less than 1.0 mass % of lithium oxide (Li 2 O), from 0 to less than 1.0 mass % of sodium oxide (Na 2 O) and from 0 to less than 1.0 mass % of potassium oxide (K 2 O), wherein a total content of the lithium oxide (Li 2 O), sodium oxide (Na 2 O) and potassium oxide (K 2 O) is less than 1.0 mass %, a total content of the zinc oxide (ZnO) and barium oxide (BaO) is from 1 to 3.9 mass %, a total content of the titanium oxide (TiO 2 ), zinc oxide (ZnO) and barium oxide (BaO) is from 6 to 8 mass %, and the refractive index of the above glass fiber is from 1.583 to 1.586.