Infrared Band Pass Filter
Product Introduction
Infrared Band Pass Filter is designed to detect gases in the atmosphere. Gases such as CO2, H2O, and HC have absorption bands in the infrared spectrum. The Band Pass Filter is designed to only allow the wavelength ranges where absorption occurs to pass through. It is specifically designed to accept only the narrow absorption bands of gases, enabling the monitoring and measurement of gas concentrations.
Product Applications
Industrial Gas Measurement, NDIR Gas Sensing, CO2 detection Sensors, etc.
Product Characteristics
Based on infrared (IR) absorption, the product can be designed and manufactured for all infrared wavelength ranges. Typically, the filter has a line width between 90nm and 200nm, but wider ranges can also be implemented depending on the product's specifications.
Product Information
| Item | CWL(λ0) | HBW (λ1~λ2) |
T (peak) | Blocking Range(um) |
Gas Info |
| NBPF-1.940–050 | 1.940±30nm | 50±20nm | 73% | 1.50 ~ 10.00 | H2O |
| NBPF-2.700-060 | 2.700±30nm | 60~100nm | 73% | 1.50 ~ 4.00 | H2O |
| NBPF-2.820-180 | 2.820±1.0% | 180±20nm | 70% | 1.50 ~ 10.0 | |
| NBPF-3.090-160 | 3.090±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.300-160 | 3.300±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | CH4 |
| NBPF-3.295-160 | 3.295±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.330-160 | 3.330±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | HC / CH4 |
| NBPF-3.310-160 | 3.310±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.375-190 | 3.375±30nm | 190±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.387-190 | 3.387±30nm | 190±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.400-120 | 3.400±30nm | 120±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.435-160 | 3.435±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | HC |
| NBPF-3.460-163 | 3.460±30nm | 163±20nm | 73% | 1.50 ~ 10.00 | HC / CH4 |
| NBPF-3.950-090 | 3.950±30nm | 90±20nm | 73% | 1.50 ~ 10.00 | Reference |
| NBPF-4.260-090 | 4.260±30nm | 90±20nm | 73% | 1.50 ~ 10.00 | CO2(narrow) |
| NBPF-4.260-180 | 4.26±30nm | 180±20nm | 73% | 1.50 ~ 10.00 | CO2(standard) |
| NBPF-4.300-600 | 4.30±30nm | 600±30nm | 73% | 1.50 ~ 10.00 | Flame |
| NBPF-4.330-160 | 4.330±30nm | 160±20nm | 73% | 1.50 ~ 10.00 | CO2 |
| NBPF-4.430-060 | 4.430±30nm | 60±20nm | 73% | 1.50 ~ 10.00 | Flame |
| NBPF-4.480-620 | 4.480±30nm | 4.17 ~ 4.79um | 73% | 1.50 ~ 10.00 | CO+CO2 |
| NBPF-4.530-085 | 4.530±30nm | 85±20nm | 73% | 1.50 ~ 10.00 | N2O |
| NBPF-4.640-180 | 4.640±30nm | 180±20nm | 73% | 1.50 ~ 10.00 | CO |
| NBPF-5.300-180 | 5.300±50nm | 180±30nm | 73% | 1.50 ~ 10.00 | NOX |
| NBPF-6.235-200 | 6.235±50nm | 200±30nm | 73% | 1.50 ~ 10.00 | NO2 |
| NBPF-7.300-180 | 7.300±50nm | 180±30nm | 70% | 1.50 ~ 10.00 | SO2 |
| NBPF-8.300-250 | 8.300±50nm | 250±30nm | 70% | 1.50 ~ 10.50 | |
| NBPF-9.076-115 | 9.076±50nm | 115±30nm | 70% | 1.50 ~ 11.50 | CH2F2 |
| NBPF-9.378-393 | 9.378±50nm | 393±30nm | 70% | 1.50 ~ 12.00 | CH3F |
| NBPF-10.10-200 | 10.10±50nm | 200±30nm | 70% | 1.50 ~ 12.50 | C5F8 |
| NBPF-10.27-210 | 10.27±50nm | 210±30nm | 70% | 1.50 ~ 13.00 | FREON R134a |
| NBPF-10.56-370 | 10.56±50nm | 370±30nm | 70% | 1.50 ~ 13.50 | SF6 |
| NBPF-11.30-200 | 11.30±50nm | 200±30nm | 70% | 1.50 ~ 14.00 | FERON R12 |
| NBPF-12.40-180 | 12.40±50nm | 180±30nm | 70% | 1.50 ~ 15.50 |