China Infrared Dual-Channel Filter WBP+WBP - Top Suppliers & Factory for Precision Optical Systems
| Product Name | 50% left | 50% right | WBP Blocking | Tmin | Tavg | Size (mm) | Sub Material | The cut-off area except for the passband | Tmax | Tavg |
|---|---|---|---|---|---|---|---|---|---|---|
| WBP2710~2970 + WBP4210~4490 | 2710 | 2970 | 2760~2910 | / | ≥85% | Φ0.1~300 | Ge | 1000~5500 | / | <1% |
| WBP2710~2970 + WBP4210~4490 | 4210 | 4490 | 4250~4450 | / | ≥85% | Φ0.1~300 | Ge | 1000~5500 | / | <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
Q: What is the substrate material for these filters?
The substrate material used for these wide bandpass (WBP) optical filters is Germanium (Ge), which is excellent for infrared applications.
Q: What are the available dimensions for these filters?
Our standard size range for these optical filters is from Φ0.1 mm up to 300 mm. Custom dimensions can be manufactured upon request.
Q: What is the average transmission (Tavg) in the passband?
These filters offer high transmission performance with an average transmission (Tavg) of 85% or higher (≥85%) in the specified bands.
Q: How effective is the out-of-band blocking?
The filters feature excellent blocking capability with an average transmission (Tavg) of less than 1% (<1%) across the 1000~5500 nm cut-off range (excluding the passband).
Q: Can I request a custom specification not listed in the stock table?
Yes, we provide custom optical coating and sizing services. Please use our contact form to submit your specific requirements.





