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Infrared bandpass filter
- Product Description
- Parameter Introduction
- Precautions
-
Product Performance
Parameter item
Specification description
Center wavelength
0.8–14 μm
Half-peak bandwidth
30-700nm
Peak transmittance
≥80% (customizable upon request)
Product dimensions
According to customer needs
Product material
Si, Ge, ZnSe, ZnS (customizable upon request)
Spectral curve

Gas detection filter
Primarily used in online monitoring equipment for infrared optical measurement of smoke and dust concentrations, monitoring of smoke and dust emissions from pollution sources, monitoring of dust concentrations in industrial manufacturing processes, and dust load monitoring devices in production workshops and factory buildings.
Detect gas type
Center Wavelength (μm)
Transmittance (%)
Half-bandwidth (μm)
Depth limit
CO
4.5
85
0.09/0.14
OD3
CO₂
4.3
85
0.09/0.14
OD3
CO₂
10.6
85
0.09/0.14
OD3
C₂H₄
10.6
85
0.09/0.14
OD3
C₃H₆
11.6
85
0.09/0.14
OD3
C₂H₂
13
85
0.09/0.14
OD3
CH₄
3.4
85
0.09/0.14
OD3
C₆H₁₄
3.4
85
0.09/0.14
OD3
NO
5.2
85
0.09/0.14
OD3
NO₂
6.2
85
0.09/0.14
OD3
N₂O₅
8
85
0.09/0.14
OD3
NH₃
6.1
85
0.09/0.14
OD3
NH₃
10.753
85
0.09/0.14
OD3
NH₃
10.341
85
0.09/0.14
OD3
CH₂O
3.597
85
0.09/0.14
OD3
HCL
3.5
85
0.09/0.14
OD3
H₂S
7.6
85
0.09/0.14
OD3
SO₂
7.3
85
0.09/0.14
OD3
Application areas
1. Security Surveillance Field
2. Infrared Gas Analyzer
3. Night vision products
4. Infrared detector
5. Infrared Receiver
6. Infrared sensing
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