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Lp420nm filter

Long pass filter Product Features
Compared with the traditional colored optical glass filters, the short wave pass and long pass filters produced by our company have the advantages of large cut-off, high transmittance and large background optical density, and are completely the same as traditional optical glass methods Different point, when the angle of incidence changes (from 0 degrees to a large angle rotation), the characteristic cut-off wavelength will be to shortwave direction. This feature can be used in the fine-tuning system, and can get your desired wavelength.

Parameters 

Filter Type : Longpass Filter

Coating Type: Hard film Coated
AOI : 0°±5°
Central wavelength : 420nm±3nm
Cut off wavelength : 200nm~410nm
Cut off rate : <0.05%
Passing wavelength :430nm~1100nm
Tran :>95% 
Scratch-Dig : 60/40
Row material : Fused Silica,B270,Float Glass,or other optical glass

Advantage 
Plated with hard, long service life,
Wavelength accuracy
Ion plating, low temperature drift
High penetration rate,
High cut-off depth