Металлический нейтральный фильтр, УФ-плавленый кварц, 50,8x50,8 мм, OD 4,0 при 632,8 нм Модель: FSQ-ND40

Технические характеристики

• Size 50.8 x 50.8 mm
• Wavelength Range 350 — 2000 nm
• Optical Density 4
• Optical Density Tolerance ±4&percnt, @ 632.8 nm
• Transmission 0.01% @ 632.8 nm
• Angle of Incidence 0°
• Material UV grade fused silica or equivalent
• Damage Threshold 30 W/cm2 CW, typical, not recommended for pulsed laser use
• Thickness 3.0 mm
• Thickness Tolerance ±0.25 mm

• Surface Flatness &le,2&lambda, at 632.8 nm over the clear aperture
• Surface Quality 60-40 scratch-dig
• Clear Aperture &ge,central 80% of dimensions
• Wedge &le,3 arc min
• Chamfers 0.25–0.76 mm face width
• Chamfers Angle Tolerance 45° ±15°
• Durability MIL-C-48497A, adhesion, humidity, moderate abrasion, and solubility requirements
• Cleaning See How to Clean Optics