Cut off red optical glass HB780

The core characteristics of the cut-off red optical glass HB780 are as follows: (Cut off orange glass,Cut off red glass,Cut off golden glass,Cut off infrared transmission visible absorption glass) Spectral characteristics Long wave pass cut-off filter, accurately cut-off all ultraviolet and visible light bands below 780nm (including 380-780nm full spectrum); Allow efficient transmission of near-infrared light above 780nm (up to 2500nm), with peak transmittance in the infrared region reaching 85% -90%; Having a steep cutoff edge, significant slope of the absorption curve, and visible light absorption rate ≥ 99.9%; 2 Optical performance Adopting a special semiconductor doping process to achieve full visible light absorption; Surface smoothness reaches 60/40 standard, double-sided polishing treatment; Angle insensitive, changes in incident angle do not affect cutoff performance; Infrared band transmittance fluctuation ≤ 3% (700-2500nm); 3 Physical Parameters Standard thickness 2mm (supp…

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