China Infrared Broadband Filter IWBP3000-5000 - High Transmission Suppliers and Factory Solutions

Introducing our high-performance infrared broadband filter, an essential optical device manufactured by leading suppliers in China. Designed to allow optimal transmission of infrared light from 0.9 micrometers to 12 micrometers, this advanced filter effectively blocks out unwanted wavelengths, ensuring superior efficiency. The exceptional performance of our infrared broadband filter is attributed to its sophisticated multilayer thin film structure, meticulously engineered in our factory. Each layer is crafted with precise refractive indices and thicknesses, which facilitate various degrees of reflection, absorption, and transmission for different wavelengths of light. This innovative technology confirms that our infrared broadband filter is capable of accurately filtering and transmitting the intended infrared light, making it an ideal choice for diverse applications.

Product Details

Product Technical Parameters

Substrate: Si

HT Area: 3000–5000 nm

Tp: ≥ 85%

Blocking: 1500–11000 nm

IWBP 3–5 μm Bandpass Filter

Frequently Asked Questions

The IWBP 3–5 μm bandpass filter uses a Silicon (Si) substrate. Silicon is an ideal choice for mid-infrared optical applications due to its excellent transmission properties in the 1.2–7 μm wavelength range, high refractive index, and mechanical stability.
The high-transmission (HT) area covers a wavelength range of 3000 to 5000 nm (3–5 μm). Within this passband, the filter achieves a minimum average transmittance of ≥85%, ensuring efficient signal throughput for mid-infrared sensing and imaging applications.
The filter guarantees a minimum transmittance of Tp ≥ 85% within the designated HT area (3000–5000 nm). This high transmittance level ensures minimal signal loss and is suitable for demanding scientific and industrial infrared measurement systems.
The blocking range extends from 1500 nm to 11000 nm, covering a broad spectral region outside the passband. This wide blocking ensures effective suppression of unwanted radiation, which is critical for accurate measurements and reducing background noise in infrared detection systems.
The IWBP 3–5 μm bandpass filter is widely used in applications including gas detection and analysis, thermal imaging cameras, FLIR systems, environmental monitoring, industrial process control, medical diagnostics, and scientific spectroscopy instruments operating in the mid-infrared spectral region.
Yes. The Silicon substrate provides excellent mechanical durability and thermal stability, making the filter suitable for use in challenging environments. The optical coatings are designed to maintain performance over a wide temperature range, making them appropriate for both laboratory and field-deployed infrared instruments.