3.65μm to 4.27μm Transmission IR Wide Bandpass Filter
Item No: COBF3.65-4.27μm
Type: Infrared Bandpass Filter
Coating: Hard coating
3.65μm to 4.27μm Transmission IR Wide Bandpass Filter Product Discription
Coligh is the manufacturer of ir wide and narrow bandpass filter. 3.65μm to 4.27μm Transmission IR Wide Bandpass Filter is engineered to transmit at 3.65μm to 4.27μm and block the other unwanted wavelength within 1.5μm to 7.0μm wavelength range.
3.65μm to 4.27μm Transmission IR Wide Bandpass Filter Standard Specifications:
- Type: Infrared Bandpass Filter
- Coating Type: Hard Coating
- 50% Cut On wavelength: 3650+/-100nm
- 50% Cut off wavelength: 4271+/-100nm
- High Transmission Wavelength range: 3700nm-4150nm
- Peak Transmission: >=85%
- BLocking range: 1500-7000nm
- Blocking depth: Tave<1%
- Substrate Material: Silicon
- Thickness: 0.5mm
- Size: Dia100*0.5mm, we can cut and grand according to client’s request
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.
3.65μm to 4.27μm Transmission IR Wide Bandpass Filter Applications:
- Gas Monitoring and Analysis: There are many industrial and environmental infrared absorption peaks between 3.65µm and 4.27µm. For example, the absorption peaks of carbon dioxide and carbon monoxide are around 4.26µm and 4.6µm, respectively. This filter can be used with infrared gas sensors to detect industrial emissions and monitor air quality.
- Laser Systems: In the mid-infrared band, this filter can be used with mid-infrared lasers or mid-infrared LEDs to control the infrared spectrum output.









