Materials used for step window blanks include but are not limited to sapphire, and can also be K9 glass, high borosilicate glass, quartz, or other high transmission glasses. The choice of material depends on specific application requirements such as transmission, temperature resistance, mechanical strength, and chemical stability.
Material | optical glass,BK7 ,Fused silica, Ge,Si,CaF2, ZnSe,ZnS,BaF2,MgF2,LiF,KBr,Nacl,Corning Eagle XG,sapphire,Corning 7980,Corning 7979,Corning 8655 JGS1,JGS2,JGS3,Low iron glass,soda lime glass,Gorilla glass,ITO glass,FTO glass,borofloat 33(BF33) |
Diameter | 1-500mm |
Thickness | 0.1-50mm |
Diameter Tolerance | ±0.01 mm |
Thickness Tolerance | ±0.01mm |
Surface Quality | 80/50,60/40,40/20,20/10 |
Clear Aperture | >90% |
parallelism | <3 arcmin |
Coating | Custom,AR coating,BBAR coating, DLC coating, AF/AS coating,Hydrophobic Coating, ITO/FTO coating. AR+AF/AS coating,AR+DLC coating,ITO/FTO+AR coating |
Bevel | 0.1~0.3mm x 45 degree |
Can be customized according to your requirements