Infrared Dual-Channel Filter (WBP+WBP)

Product Introduction:

MULTI IR WBP+WBP (Dual-Channel) Filter is constructed with optical-grade substrates and multi-layer dielectric film technology, enabling precise light transmission through dual broadbands and deep cutoff outside the bands. It features stable operation over a wide temperature range and supports customization of dual center wavelengths, bandwidths, and sizes. It is widely used in high-precision optical systems such as multi-spectral imaging, industrial testing, security monitoring, and scientific research.

WBP2710~2970+WBP4210~4490nm SPECIFIC PARAMETERS

Size	Φ0.1-300mm
Substrate	Germanium
Band Pass 1	2760~2910nm	Band Pass2	4250-4450nm
50% Cut-on	2710nm	Cut on 50%	4210nm
50% Cut-off	2970nm	Cut off 50%	4490nm
Tavg	≥85%	Tavg	≥85%
Cutoff Region Outside Passband	1000-5500nm
Average Transmittance	<1%

THE ABOVE PARAMETERS CAN BE CUSTOMIZED

product list

Introduction

related products

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

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MULTI IR IR Dual-channel Filter (WBP+WBP) is a high-performance composite optical product developed for wide-band multi-target detection needs. Its core design is to integrate two independent wide-bandpass filter channels (Wide Bandpass+Wide Bandpass), which can efficiently transmit two different ranges of wide-band infrared light simultaneously, realizing synchronous capture and distinction of two types of wide-spectrum target signals without the need for additional filter components, greatly simplifying the optical system structure and improving detection efficiency and integration.

This product adopts advanced dual-cavity wide-band interference coating technology and high-precision optical substrate processing. The bandwidth of each wide-band channel can be flexibly customized (from hundreds of nanometers to several micrometers), with a flat spectral curve and high peak transmittance (up to 85% or more). The wavelength ranges of the two channels can be flexibly matched according to needs, with excellent isolation between channels, which can effectively avoid signal interference caused by spectral overlap. It is widely used in fields such as infrared remote sensing, multi-band infrared imaging, complex environmental monitoring, industrial multi-parameter detection, and aerospace infrared detection. In infrared remote sensing, it can simultaneously capture surface infrared information of two different wide bands, providing rich data support for resource exploration and meteorological monitoring; in complex environmental monitoring, it can synchronously collect infrared signals of different wide bands in the atmosphere, realizing comprehensive monitoring and analysis of various pollutants; in industrial multi-parameter detection, it can match two different wide-band infrared characteristic signals in the production process, monitoring multiple parameters such as temperature and composition simultaneously, improving the comprehensiveness and accuracy of production control; in aerospace infrared detection, it can meet the target detection needs of different wide bands, enhancing the equipment's adaptability to complex space environments. MULTI IR IR Dual-channel Filter (WBP+WBP) supports full-dimensional customization services. Customers can freely select the wavelength range, bandwidth, and transmittance indicators of the two channels according to actual application scenarios. At the same time, the product size (1-300mm), shape (such as square, circular, lens, aspherical lens, irregular shape, hexagon, ellipse, sector, etc.), installation interface, etc. can be customized to be compatible with various terminal systems such as infrared detectors, imaging equipment, and spectrometers. It can meet the stringent requirements of wide-band multi-target synchronous detection in high-end fields such as scientific research, industry, aerospace, and environmental protection, and provide a highly integrated, stable and reliable filtering solution for complex infrared optical systems, which is a core optical component for improving the comprehensive performance of the system.