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IR Filters

We offers a variety of infrared (IR) filters including IR narrow bandpass filters, IR wide bandpass filters, long-wave pass filters and other custom filters. The substrate could be silicon, sapphire or Germanium. It covering 1um to 15 um. The infrared filters are widely used in environmental monitoring, temperature sensing, thermal imaging as well as other applications.

IR Narrow Bandpass Filters

Materials
CWL
Part Number and Description
BK7 1.44um P/N: PIRF-INBP1440-01101,  Filter in stock  
CWL1440±14nm, HPB20±10nm, Tpeak≥70% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
BK7 1.45um P/N: PIRF-INBP1450-01101,  Filter in stock  
CWL1450±14nm, HPB20±5nm, Tpeak≥80% Out of band blocking from 400 to 3000nm,   For more detailed specifications and Transmission Curve...
BK7 1.71um P/N: PIRF-INBP1710-01101,  Filter in stock  
CWL1710±17nm, HPB20±5nm, Tpeak≥60% Out of band blocking from 400 to 2200nm,   For more detailed specifications and Transmission Curve...
BK7 1.79um P/N: PIRF-INBP1790-01101,  Filter in stock  
CWL1790±17nm, HPB30±10nm, Tpeak≥85% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
BK7 1.92um P/N: PIRF-INBP1920-01101,  Filter in stock  
CWL1920±19nm, HPB20±5nm, Tpeak≥80% Out of band blocking from 400 to 2200nm,   For more detailed specifications and Transmission Curve...
BK7 1.94um P/N: PIRF-INBP1940-01101,  Filter in stock  
CWL1940±20nm, HPB30±10nm, Tpeak≥85% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
BK7 2.06um P/N: PIRF-INBP2060-01101,  Filter in stock  
CWL2060±20nm, HPB50±10nm, Tpeak≥80% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
BK7 2.10um P/N: PIRF-INBP2100-01101,  Filter in stock  
CWL2100±20nm, HPB50±10nm, Tpeak≥90% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
BK7 2.31um P/N: PIRF-INBP2310-01101,  Filter in stock  
CWL2310±20nm, HPB30±10nm, Tpeak≥85% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
Silicon 2.47um P/N: PIRF-INBP2470-01101,  Filter in stock  
CWL2470±25nm, HPB74±20nm, Tpeak≥70% Out of band blocking from 1500 to 5500nm,  For more detailed specifications and Transmission Curve...
Silicon 2.8um P/N: PIRF-INBP2800-01101,  Filter in stock  
CWL2800±50nm, HPB240±20nm, Tpeak≥80% Out of band blocking from 400 to 3000nm,  For more detailed specifications and Transmission Curve...
Silicon 3.4um P/N: PIRF-INBP3400-01101Filter in stock 
CWL3400±34nm, HPB140±20nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
Silicon 3.4um P/N: PIRF-INBP3400-02101,  Filter in stock 
CWL3400±34nm, HPB140±20nm, Tpeak≥90% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve... 
Silicon 3.9um P/N: PIRF-INBP3900-01101,  Filter in stock 
CWL3900±39nm, HPB90±20nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 3.9um P/N: PIRF-INBP3900-02101,  Filter in stock 
CWL3900±39nm, HPB180±20nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 4.26um P/N: PIRF-INBP4260-01101,  Filter in stock 
CWL4260±42nm, HPB90±20nm, Tpeak≥75% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 4.26um P/N: PIRF-INBP4260-02101,  Filter in stock 
CWL4260±42nm, HPB180±20nm, Tpeak≥85% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 4.67um P/N: PIRF-INBP4670-01101,  Filter in stock 
CWL4670±46nm, HPB180±20nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 5.3um P/N: PIRF-INBP5300-01101,  Filter in stock 
CWL5300±53nm, HPB610±40nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 7.3um P/N: PIRF-INBP7300-01101,  Filter in stock 
CWL7300±73nm, HPB180±20nm, Tpeak≥80% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 7.3um P/N: PIRF-INBP7300-02101,  Filter in stock 
CWL7300±73nm, HPB180±20nm, Tpeak≥85% Out of band blocking from 400 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 10.6um P/N: PIRF-INBP10600-01101,  Filter in stock 
CWL10600±100nm, HPB120±20nm, Tpeak≥60% Out of band blocking from 400 to 13600nm, For more detailed specifications and Transmission Curve...
 
Germanium 10.6um P/N: PIRF-INBP10600-02201,  Filter in stock 
CWL10600±100nm, HPB190±20nm, Tpeak≥90% Out of band blocking from 400 to 13600nm, For more detailed specifications and Transmission Curve...
 

 

IR Wide Bandpass Filters

Materials
WL Range
Part Number and Description
Silicon 3.0~5.0um P/N: PIRF-IWBP3000~5000-01101,  Filter in stock 
50% cut on 3000±50nm, 50% cut on 50050nm, Tavg≥85%, Out of band blocking from 1500 to 11000nm, For more detailed specifications and Transmission Curve...
 
Silicon 8.0~14.0um P/N: PIRF-IWBP8000~14000-01101,  Filter in stock 
50% cut on 83580nm, 50% cut on 1365100nm, Tavg≥75%, Out of band blocking from 1500 to 19000nm, For more detailed specifications and Transmission Curve...
 

 

IR Long Pass Filters

Materials
Cut-off WL
Part Number and Description
Silicon 2.0um P/N: PIRF-ILP2000-01101,  Filter in stock 
50% cut on 2000±40nm, TWR: 2100~2800nm, Tavg≥85%, Out of band blocking from 400 to 1800nm, For more detailed specifications and Transmission Curve...
 
Silicon 2.4um P/N: PIRF-ILP2400-01101,  Filter in stock 
50% cut on 2400±100nm, TWR: 2400~3600nm, Tavg≥90%, Out of band blocking from 400 to 2200nm, For more detailed specifications and Transmission Curve...
 
Silicon 3.0um P/N: PIRF-ILP3000-01101,  Filter in stock 
50% cut on 3000±300nm, TWR: 4000~13000nm, Tavg≥78%, Out of band blocking from 1500 to 2500nm, For more detailed specifications and Transmission Curve...
 
Silicon 5.5um P/N: PIRF-ILP5500-01101,  Filter in stock 
5% cut on 5500±400nm, TWR: 7500~13500nm, Tavg≥70%, Out of band blocking from 1500 to 5000nm, For more detailed specifications and Transmission Curve...
 
Silicon 7.3um P/N: PIRF-ILP7300-01101,  Filter in stock 
5% cut on 74270nm, TWR: 8100~11000nm, Tavg≥90%, Out of band blocking from 1500 to 7200nm, For more detailed specifications and Transmission Curve...
 

 

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