interference filters 1.Material: Color glass 2.Dimension Tolerances: +0, -0.10mm 3.Flatness: Lambda per 25mm at 633nm interference interference filtersSpecifications:interference filtersMaterial:Color glassDimension Tolerance:+0.0, -0.2mmThickness Tolerance:±0.2mmSurface quality:80/50Clear Aperture:>85%Flatness:1 λ per 25mm@633nmParallelism:±3'Bevel:<0.25mm X 45°Coating:Upon requirement