3.75μm to 5.70μm Transmission IR Wide Bandpass Filter Product Discription

Coligh is the manufacturer of ir wide and narrow bandpass filter.  3.75μm to 5.70μm Transmission IR Wide Bandpass Filter is engineered to transmit at 3.75μm to 5.70μm and block the other unwanted wavelength within 1.5μm to 7.0μm wavelength range.

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3.75μm to 5.7μm Transmission IR Wide Bandpass Filter Standard Specifications:

• Type: Infrared Bandpass Filter
• Coating Type: Hard Coating
• 50% Cut On wavelength: 3750+/-50nm
• 50% Cut off wavelength: 5700+/-50nm
• High Transmission Wavelength range: 4000-5500nm
• Peak Transmission: >=85%
• BLocking range: 1500-7000nm
• Blocking depth: Tave<1%
• Substrate Material: Silicon
• Thickness: 0.5mm
• Size: Dia25.3*0.5mm Dia25*0.5mm, we can cut and grand according to client’s request

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IR Bandpass Filter Custom Options:

• Wavelength range: 1000nm-14000nm
• Filter Type: Wide Bandpass Filter and Narrow Bandpass Filter
• Narrow bandpass Filter FWHM: 15nm to 600nm
• Wide Bandpass Filter Transmission: up to 8000nm wavelength range high transmission
• Size: Up to 150mm diameter
• Substrate Material: JGS3, Fused Silica, Sappire, Silicon Quatarz

IR Bandpass Filter Stock Status:

We have large amount of IR bandpass filters in stock. Ranging from 1000nm to 14000nm, and different wavelength in different sizes.

Welcome to inquire us about what you need.  Standard stock filters can be sent within 7 days. We also can customize economically.

 

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3.75μm to 5.7μm Transmission IR Wide Bandpass Filter Applications:

• Gas Monitoring: The 3.75-5.7μm filter covers the absorption peaks of gases such as CO, CO₂, NOx, SO₂, and CH₄. This filter is ideal for monitoring industrial emissions and detecting greenhouse gases.
• Infrared Thermal Imaging: In the mid-infrared band, the 3.75-5.7μm range is well-suited for imaging military equipment.