Specifications

Substrate Material

UV Grade Fused Silica or BK7

Surface Figure

¦Ë/10 typical at 633nm

Transmitted Wavefront

¦Ë/10 typical at 633nm

Surface Quality

10/5 laser quality

Diameter Tolerance

+0.0mm~-0.25mm

Thickness Tolerance

¡À0.25mm

Wedge

¡Ü5 minutes

Chamfer

0.25mm at 45¡ã typical

Concentricity

¡Ü0.05mm

Radius Tolerance

¡À0.5%

Coating Technology

Electron Beam Evaporation, Dielectric Mulitlayers

Adhesion and Durability

Per MIL-C-675A. Insoluble in lab solvents

Clear Aperture

>85% of dimensions

Angle of Incidence

0¡ãor  45¡ã

Wavelength Range

248~2100nm

Transmittance

>95%

Reflectance

>99.5%

Laser Induced Damage Threshold

5J/cm², 1 ns pulse, at 1064nm typical

Substrate Diameter(mm)

10, 12.7, 15, 20, 25, 25.4, 30

Note: Other dimensions and specifications are available upon request.