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High Accuracy Infrared Dual-Channel Filter (WBP+LP) from China Suppliers and Factory for Gas Detection and Analysis
| Product Name | 50% left | 50% right | LP50% | WBP-Blocking(nm) | Tmin | Tavg | LP-Blocking(nm) | Tmin | Tavg | Size (mm) | Sub Material | Previous cut-off area | Tavg | Intermediate cut-off area | Tavg | Spectrogram |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WBP1.6~2.3+LP3.6 | 1600 | 2300 | 3600 | 1700~2200 | / | ≥93 | 4000~6000 | / | ≥90 | Φ0.1~300 | Si | 400~1550 | <1 | 2350~3550 | <2 |
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| WBP1.75~2.3+LP3.7 | 1750 | 2300 | 3700 | 1800~2250 | / | ≥80 | 3750~5000 | ≥90 | Φ0.1~300 | Si | 400~1600 | <1 | 2350~3650 | <2 |
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| WBP1.75~2.3+LP3.9 | 1750 | 2300 | 3900 | 1800~2250 | / | ≥80 | 4100~5500 | ≥90 | Φ0.1~300 | Si | 400~1600 | <1 | 2400~3650 | <2 |
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| WBP3-5+LP7500 | 3000 | 5000 | 7500 | 3250~4750 | / | ≥85 | 7750~14000 | ≥85 | Φ0.1~300 | Ge | 400~7250 |
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| WBP10.3~11.3 + LP11500 | 10600 | 11450 | 11650 | 10750~11300 | / | ≥80 | 11800~12400 | ≥80 | Φ0.1~300 | Ge |
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| Combined filter WBP+LP | 10600 | 11500 | 11700 | 10600~11300 | / | ≥80 | 11800~12550 | ≥80 | Φ0.1~300 | Ge | 7000~14000 | <1 |
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Filter Spectrogram Previews
The above list shows our current stock items.
If you don't see what you are looking for, please contact us.
Frequently Asked Questions
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What are Combined WBP + LP Filters?
Combined Wide Bandpass (WBP) and Longpass (LP) filters are optical components designed to block unwanted shorter and longer wavelengths while allowing specific bands of infrared light to pass through.
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Which substrate materials are used for these filters?
Silicon (Si) and Germanium (Ge) are the primary substrate materials listed. Silicon is commonly used for near-to-mid infrared ranges, while Germanium is ideal for mid-to-far infrared applications.
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What size ranges are available for these stock filters?
Our standard stock sizes range from Φ0.1 mm to 300 mm. We can accommodate custom sizing based on your specific requirements.
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What does Tavg represent in the product specifications?
Tavg refers to the average transmittance percentage within the specified transmission band. Most of our stock filters feature an average transmittance (Tavg) of ≥80% or ≥90%.
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Can I request a custom filter if my required specs are not listed?
Yes. If you cannot find the required specifications in our current stock list, please contact us directly and we will assist with custom fabrication options.