circular-linear-variable-neutral-density-filters

circular variable neutral density filters with 2 nd filter sizes shown

Specifications

Technical Specs

Wavelength Range
250-2500 nm
Material
Fused silica
Size Tolerance
+0/-0.3 mm
Thickness
2.0 mm
Thickness Tolerance
±0.25 mm
Surface Flatness
2λ
Surface Quality
80-50 scratch-dig
Wedge
≤ 20 arc sec

Chamfers
0.2-0.3 mm face width
Chamfers Angle Tolerance
45° ±15°
Durability
Metalized area MIL-M-13508C, AR coated area MIL-C-675, moderate abrasion
Inside Diameter
7.5 mm
Cleaning
See How to Clean Optics

Wavelength Range
250-2500 nm
Material
Fused silica
Size Tolerance
+0/-0.3 mm
Thickness
2.0 mm
Thickness Tolerance
±0.25 mm
Surface Flatness
2λ
Surface Quality
80-50 scratch-dig
Wedge
≤ 20 arc sec

Chamfers
0.2-0.3 mm face width
Chamfers Angle Tolerance
45° ±15°
Durability
Metalized area MIL-M-13508C, AR coated area MIL-C-675, moderate abrasion
Inside Diameter
7.5 mm
Cleaning
See How to Clean Optics

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