Committed to the Future, Fulfilling the Promise of Excellence

Control Optics specializes in windows of IR and UV band, with many years of experience in material processing, including UV grade fused silica commonly used in 190 nm to 400 nm UV band, fused silica commonly used in NIR 1μm~2μm, sapphire and Si commonly used in 3μm~5μm , as well as Ge, Si, CaF2, MgF2, ZnS, and ZnSe commonly used in 8μm~14μm.


IR windows, UV windows

Material BK7、Borofloat Borosilicate glass、UV Grade Fused Silica、Pyrex Borosilicate glass、B270、Sapphire、Ge、Si、CaF2、MgF2、ZnS、ZnSe、Customer-designated materials
Diameter(Φ) 2mm~5000mm
Radius(R) Specified by customer
  Low grade General grade High grade
Diameter tolerance ±0.5mm ±0.1mm ±0.1mm
Surface quality 80/50 60/40 20/10
Surface accuracy 1/2λ 1/10λ
Thickness tolerance ±0.2mm ±0.1mm ±0.01mm
Clear Aperture 85% 90% 100%
Parallelism 3’ 1’ 15’
Coating Multilayer dielectric coating
Diamond-like carbon (DLC) coating
Specified by customer
Multilayer dielectric coating
Diamond-like carbon (DLC) coating
Specified by customer
Multilayer dielectric coating
Diamond-like carbon (DLC) coating
Specified by customer