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Multi IR Narrowband Filter: High Precision Gas Detection Solutions from China Suppliers and Factory
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IR Longpass Filter (LP)

IR Longpass Filter (LP)
IR Broadband Filter (WBP)

IR Broadband Filter (WBP)
Infrared Narrowband Filter (BP)

Infrared Narrowband Filter (BP)
Infrared Anti-Reflective Filter (AR) Coating

Infrared Anti-Reflective Filter (AR) Coating
Diamond-Like Carbon Filter (DLC) Coating

Diamond-Like Carbon Filter (DLC) Coating
Infrared Beam Splitter Filter (BS)

Infrared Beam Splitter Filter (BS)
Infrared Dual-Channel Filter (BP+BP)

Infrared Dual-Channel Filter (BP+BP)
Infrared Dual-Channel Filter (WBP+LP)

Infrared Dual-Channel Filter (WBP+LP)
Infrared Dual-Channel Filter (WBP+WBP)

Infrared Dual-Channel Filter (WBP+WBP)
AR Coating

AR Coating
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Multi IR Narrowband Filter: High Precision Gas Detection Solutions from China Suppliers and Factory

The MULTI IR Narrowband Filter, proudly manufactured in China, stands out for its exceptional precision in center wavelength accuracy, narrow and steep passband characteristics, and impressive transmittance within the passband. This filter features a deep cutoff depth and extremely high edge transition steepness, making it a preferred choice among suppliers for various applications. It is widely utilized in gas detection and analysis, smart home technology, environmental protection, and industrial and agricultural production. Our factory offers customization options for center wavelength, passband width, cutoff range, size, and spectral parameters to meet specific needs. Choose our MULTI IR Narrowband Filter for reliable performance and innovative solutions tailored to your requirements
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    Product Name CWL (nm) HPB (nm) Tp (%) Size (mm) Sub Material Blocking(nm) Spectrogram
    BP900±30 900 70 ≥90 Φ0.1~300 Sapphire 650~1250
    Spectrogram
    BP950 Φ0.1~300 K9 Glass
    Spectrogram
    BP1380±30 1380 70 ≥85 Φ0.1~300 Sapphire 500~2000
    Spectrogram
    BP1440±20 1440 20 ≥70 Φ0.1~300 White Glass 400~2200
    Spectrogram
    BP1640±20 1640 190 ≥70 Φ0.1~300 White Glass 400~8000
    Spectrogram
    BP1645±5 1645 20 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1650±5 1650 15 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1653±5 1653 20 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1655±2 1655 20 ≥80 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1657±2 1657 20 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1658±5 1658 15 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1660±5 1660 15 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1663±5 1663 20 ≥80 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1665±5 1665 20 ≥90 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1670±20 1670 20 ≥80 Φ0.1~300 D263T 300~2500
    Spectrogram
    BP1697 1697 15 ≥85 Φ0.1~300 D263T 800~2000
    Spectrogram
    BP1700±17 1700 70 ≥75 Φ0.1~300 Sapphire 500~3000
    Spectrogram
    BP1720±15 1720 20 >60 Φ0.1~300 White Glass 400~2200
    Spectrogram
    BP1745±15 1740 20 55~65 Φ0.1~300 White Glass 400~2200
    Spectrogram
    BP1790±15 1790 30 ≥85 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP1810 1810 30 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP1820±25 1820 30 ≥85 Φ0.1~300 Si 400~3000
    Spectrogram
    BP1860±30 1860 60 ≥85 Φ0.1~300 Si 400~3000
    Spectrogram
    BP1900±20 1900 50 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP1930±15 1920 20 >70 Φ0.1~300 White Glass 400~2200
    Spectrogram
    BP1940±25 1940 50 ≥70 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP1940±18 1940 45 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP1970±20 1970 45 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2000±10 2000 45 ≥50 Φ0.1~300 Quartz 400~15000
    Spectrogram
    BP2017±10 2017 35 ≥55 Φ0.1~300 Sapphire 400~15000
    Spectrogram
    BP2010±20 2010 180 ≥80 Φ0.1~300 Sapphire 500~3000
    Spectrogram
    BP2050±20 2050 200 ≥80 Φ0.1~300 Sapphire 500~3000
    Spectrogram
    BP2080±20 2080 50 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2100±20 2100 50 ≥90 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2120±20 2120 50 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2150±20 2150 45 ≥75 Φ0.1~300 Sapphire 400~15000
    Spectrogram
    BP2180±20 2180 45 ≥70 Φ0.1~300 Sapphire 400~15000
    Spectrogram
    BP2220±20 2220 45 ≥75 Φ0.1~300 Sapphire 400~15000
    Spectrogram
    BP2200±20 2200 30 ≥70 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2240±20 2240 30 ≥80 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2250±10 2250 30 ≥85 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2290±30 2265 30 ≥85 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2300±20 2300 90 ≥90 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2310±20 2310 90 ≥90 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2330±20 2330 30 ≥70 Φ0.1~300 White Glass 400~3000
    Spectrogram
    BP2400±24 2400 70 ≥75 Φ0.1~300 Sapphire 500~3000
    Spectrogram
    BP2435±10 2435 60 ≥70 Φ0.1~300 Sapphire 400~20000
    Spectrogram
    BP2435±20 2435 60 ≥70 Φ0.1~300 Sapphire 400~20000
    Spectrogram
    BP2450±25 2450 74 ≥50 Φ0.1~300 White Glass 1500~5500
    Spectrogram
    BP2450±20 2450 74 ≥70 Φ0.1~300 Si 1500~5500
    Spectrogram
    BP2460±20 2460 50 ≥80 Φ0.1~300 Sapphire 1500~15000
    Spectrogram
    BP2465±5 2465 10 ≥60 Φ0.1~300 BF33 600~3000
    Spectrogram
    BP2475±5 2475 10 ≥60 Φ0.1~300 BF33 600~3000
    Spectrogram
    BP2470±30 2470 50 ≥75 Φ0.1~300 Si 400~6000
    Spectrogram
    1 2 3 4 5 6 7 8
    The above list shows our current stock items.
    If you don't see what you are looking for, please contact us.
    Frequently Asked Questions
    What do CWL and HPB stand for in the product specifications?
    CWL stands for Center Wavelength, which is the peak transmitting wavelength of the bandpass filter. HPB stands for Half Pass Band (often referred to as FWHM - Full Width at Half Maximum), indicating the bandwidth of the filter at 50% of its peak transmission.
    Which substrate materials are available for these optical filters?
    We offer a wide range of substrate materials depending on the wavelength requirements, including Sapphire, K9 Glass, White Glass, D263T, Silicon (Si), Quartz, and Germanium (Ge).
    What is the typical transmittance (Tp) rate of these filters?
    The peak transmittance (Tp) varies by model and substrate, typically ranging from ≥50% up to ≥90% for high-performance models, ensuring optimal signal detection and minimal insertion loss.
    Can the size of the bandpass filters be customized?
    Yes, our standard stock sizes range from Φ0.1 mm up to 300 mm. Custom dimensions, shapes, and mounting options are available upon request to fit your specific system requirements.
    What blocking ranges do these filters offer?
    Our filters provide excellent out-of-band blocking across various ranges, such as 650~1250 nm, 400~15000 nm, and up to 200~30000 nm, effectively eliminating background noise for precise optical measurements.
    How do I request a quote or custom specifications?
    You can easily contact our sales engineering team by clicking the "contact us" link in the information box above. We will provide a tailored quote based on your specifications, quantity, and application needs.