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Sp550nm filter

Short wave pass filter Features
Short-wave pass as the name suggests is a short-wave direction of the light through the long-wave direction of the cut-off filter, short wave pass filter produced by our company has a large cut-off, high transmittance and background light density advantages , And completely different from the traditional optical glass method, when the incident angle changes (from 0 degrees to a large angle rotation), the characteristic cutoff wavelength will shift to the shortwave direction. This feature can be used in the fine-tuning system, and can get your desired wavelength .
Parameters 
Coating Type : Hard film Coated
Technology :IAD Hard coating 
Typical Wavelength : 
SP490,SP550,SP590,SP600,SP650,SP700,SP800,SP990 , etc...
T avg.: >90% 
Blocking : OD2~OD6 
Threshold value :300MW/Cm²


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