Technical Specifications

• Diameter: 25.4mm +0.0/-0.25mm
• Thickness: 2.54mm, +0.0/-0.127mm
• Clear aperture: 21.6mm min.
• Surface Quality: 60-40
• Central wavelength(CWL) Tolerance: ±0.5 % of CWL
• FWHM: 5 % of CWL
• FWHM Tolerance: ±0.5 % of CWL
• Transmission: 90 % average
• Ripple: 5 % max.
• Blocking at CWL: 3.0 min. Optical Density
• Reflectivity at CWL: 99.5 % min.
• Transmitted wavefront distortion: 1 wave/inch.
• Construction: Rugate interference coating on UV-grade Fused Silica substrate mounted in aluminum ring