High Transmittance Optical Elements Vacuum Coated Infrared Bandpass Filter For Precision Optical Applications
Our far-infrared bandpass filters feature center wavelengths ranging from 2.0 µm to 25 µm, coated with premium materials including silicon, germanium, sapphire, magnesium fluoride, and calcium fluoride. These filters achieve peak transmission exceeding 75% with deep optical density and superior cutoff band performance. Custom solutions are available to meet specific customer requirements.
Primary applications include: infrared thermometers, thermal imaging cameras, gas detection systems, and various industrial sensing applications.
| Product Name | Far Infrared BandPass Filter |
| Customized Support | OEM, ODM |
| Place of Origin | China |
| Model Number | IF |
| Coating | Vacuum Coating |
| Substrate | Silicon, Germanium, Magnesium Fluoride, Calcium Fluoride, Sapphire |
| Working Wavelength | 1.8~9.5µm, 2.5~25µm |
| Bandwidth | 1-10µm |
| Peak Transmittance | T > 75% |
| Clear Aperture | > 95% |
| Surface Quality | 40-20 (S/D) |
| Environmental Tests | MIL-STD-810F |
| Model Number | Application | CWL | FWHM | Transmittance | OD |
|---|---|---|---|---|---|
| GA-IRB P-4260 | CO2 detection | 4260nm | 90-380nm | T > 70% | UV~11µm @ T < 1% |
| GA-IRB P-3900 | Methane detector | 3900nm | 90-170nm | T > 70% | UV~11µm @ T < 1% |
| GA-IRB P-4650 | Carbon oxide detection | 4650nm | 225nm | T > 70% | UV~11µm @ T < 1% |
| GA-IRB P-5640 | Alcohol detection | 5640nm | 230nm | T > 70% | UV~11µm @ T < 1% |
| GA-IRB P-7350 | Sulfur oxide detection | 7350nm | 225nm | T > 75% | UV~11µm @ T < 1% |
| GA-IRB P-11000 | Temperature detection | 11000nm | 6000nm | T > 70% | UV~20µm @ T < 1% |
U-safe Technology Co., Limited (hereinafter shorted as U-SAFE) is legally registered in Hong Kong, operating as a B2B trading company that builds business bridges between Chinese factories and international importers. We help clients source the correct products and solutions safely, efficiently, and reliably. Our office is strategically located in IC Park, Shenzhen, China, enabling close coordination with manufacturing partners.
Any questions? Welcome to talk with our sales team. You will receive a reply within 24 hours at the latest!
- R&D / OEM Support
- Production Process Follow-up
- Custom Packaging Solutions
- Pre-Delivery Inspection
- Comprehensive Shipping Options: EXW, FOB, FCA, CNF, CIF, Door to Door by sea, air, express, or post
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