Half-spheres and sphere segments
Made from all types of optical glass, quartz, silicon and other optically effective materials.
With diameters ranging from less than 0.5 mm to 100 mm
Diametric tolerance ± 0.001 mm (or smaller on request)
Central thickness tolerance ± 0.01 mm (or smaller on request)
Optically polished on one or both sides
On request:
divided centrally or off-centre by parting-off grinder
with centring and facet
with coating for special wavelengths right up to broadband