window sight

PhotonExport supplies optical windows and stage glass for custom applications where a protective component is necessary to separate two elements. Optical windows and stage glass are available in a wide range of sizes and shapes, and can be supplied with an anti-reflection coating or uncoated, depending on your use-case requirements.



Optical Window & Stage Glass Manufacturing Specifications

 CommercialPrecisionHigh Precision
Diameter Tolerance0/-0.020/-0.0150/-0.001
Thickness Tolerance±0.1±0.01/
Surface SagRa:0.001Ra:0.001Ra:0.0002
Power (P - V)N=±5N=±2N=±1
Irregularity (P - V)ΔN=1ΔN=0.5ΔN=0.3
Centering (Beam Deviation)≤60″≤30″≤10″
Surface Quality60-40 20-10 10-05

Window & Stage Glass Coating Capabilities

SubstratesAll Glass Types
Spectral Ranges300 ~3000nm
Spectral Edge Tolerance<1% Deviation, <0.2% Special Cases
Bandwidth1nm - Broadband
Reflection>0.3% (absolute); <0.2% (average)
Laser Damage ThresholdUp to 20J/cm2 @ 20ns Pulses
DurabilityMIL-STD-810F, Section 507.4; MIL-C-48497A, Section 3.4.1