Borosilicate glass, DIN ISO 8255. Refractive index ne = 1.52 ± 0.01, Abbe number ve = 56.5 ± 0.5. Flatness tolerance ± 3 μm.
They differ from ordinary cover glasses by their plain ground and polished surface.
2 cover glasses in a plastic bag, separated by tissue paper.
BRAND is a registered trademark of BRAND GMBH + CO KG