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High-Performance Infrared Dual-Channel Filter (BP+BP) from China Suppliers and Factory for Gas Detection and Smart Sensing
| Product Name | CWL1 (nm) | HPB (nm) | CWL2 (nm) | HPB (nm) | Tp (%) | Size (mm) | Sub Material | Blocking | Tavg | Spectrogram |
|---|---|---|---|---|---|---|---|---|---|---|
| BP2000+BP3200 | 2000 | 325 | 3200 | 175 | ≥70 | Φ0.1~300 | Quartz | 1000~5000 |
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| BP3070+BP3960 | 3070 | 60 | 3960 | 80 | ≥80 | Φ0.1~300 | Si | 400~11000 | <1 |
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| BP3070+BP3980 | 3070 | 60 | 3980 | 80 | ≥70 | Φ0.1~300 | Si | 400~11000 | <1 |
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| BP3100+BP4010 | 3100 | 90 | 4010 | 130 | ≥75 | Φ0.1~300 | Si | 400~11000 |
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| BP3140+BP4050 | 3140 | 90 | 4050 | 130 | ≥65 | Φ0.1~300 | Si | 400~11000 |
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1
The above list shows our current stock items.
If you don't see what you are looking for, please contact us.
Frequently Asked Questions (FAQ)
Q: What do CWL and HPB stand for in the product specifications?
CWL stands for Center Wavelength, which is the optical peak transmission wavelength of the bandpass filter. HPB stands for Half Peak Bandwidth (also known as Full Width at Half Maximum, FWHM), which indicates the spectral width of the filter at 50% of its maximum transmission.
Q: What substrate materials are available for these bandpass filters?
We offer filters fabricated on high-quality Quartz and Silicon (Si) substrates. The choice of substrate depends on the target wavelength range and application requirements.
Q: Can I request a custom size or shape for my optical filter?
Yes. While our standard filters support sizes from Φ0.1 mm to 300 mm, we can custom-cut, shape, and size the filters to fit your specific optical assembly and housing requirements.
Q: How is out-of-band blocking performance measured?
Our filters feature wide and deep blocking ranges (e.g., 400 nm to 11000 nm) to minimize out-of-band noise, ensuring high signal-to-noise ratios in precision optical measurements.
Q: What should I do if a specific filter specification is not listed in stock?
Please contact us directly. Our engineering team specializes in custom optical designs and can manufacture custom bandpass filters tailored to your unique specifications.