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Bandpass interference Filters Specifications

Material BK7、B270、Borofloat Borosilicate glass、Pyrex Borosilicate glass、Synthetic Quartz 、Fused silica、D263T、Eagle XG、Soda-lime glass、OHARA、SCHOTT、CORNING、materials from various leading brands including ASAHI GLASS, NIPPON SHEET GLASS, NIPPON ELECTRIC GLASS, and customer designated materials.
Diameter(Φ) 1mm~100mm
  Low grade General grade High grade
Diameter tolerance +/-0.5 ±0.1mm ±0.01mm
Surface quality 80/50 60/40 20/10
Parallelism 3’ 1’ 30”
Surface flatness 2λ@ 633nm λ/2 @ 633nm λ/10 @ 633nm
Thickness tolerance +/-0.2 ±0.1mm ±0.01mm
Coating Multilayer dielectric coating
Specified by customer
Multilayer dielectric coating
Specified by customer
Multilayer dielectric coating
Specified by customer