Factory Custom High Transmittance Dia20mm Optical 365NM Bandpass UV Filter Glass Discs ZWB2 For Flashlight

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 Factory Custom High Transmittance Dia20mm Optical 365NM Bandpass UV Filter Glass Discs ZWB2 For Flashlight




 













































PropertySpecification
TypeZWB2 UG1 U-360
Thickness0.21mm-50mm
Size tolerance+-0.02mm
Edge FinishGround and beveled
Surface Quality60-40 scratch-dig
Surface Flatnessλ/4 @ 633 nm
Parallelism ≤3 arc min (≤0.9 mrad)
Transmistance  >85%
Clear Aperture  >90% of central diameter

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0.1987 s.