Near Infrared 700 - 2500 nm Wide Bandpass Filters

Near Infrared wide bandpass filters are optical filters designed to transmit a wider range of wavelengths while blocking out unwanted wavelengths. These filters are designed by combining a long pass filter and a short pass filter which can be positioned anywhere to create a bandpass filter of any width. More on the uses and applications of near infrared wide bandpass filters as well case study examples of filters we have manufactured can be found below.

We design and manufacture custom near infrared wide bandpass filters between 700 nanometres to 2500 nanometers to any custom specification. We hold a wide range of stock substrates such as Glass, Silicon, Sapphire, Infrared Quartz, Calcium Fluoride and more. We also have onsite dicing, so we are able to design, manufacture and dice filters to their finished size with lead times as little as 2 weeks.

Please contact us to discuss your specific requirements.

Case Studies

1300 - 2500nm Wide Band Pass Filter

2100 - 2500nm Wide Band Pass Filter

1500 - 1750nm Wide Band Pass Filter

Applications

Remote sensing:

Wide band pass filters are used in satellite and aerial imaging systems for remote sensing applications to capture specific bands of near-infrared light for monitoring environmental conditions, vegetation health, and land use.

Agriculture and Environmental Monitoring:

In precision agriculture, wide band pass filters in the near-infrared range are used in sensors and cameras to monitor crop health, optimise irrigation and fertilisation practices and monitor pollution levels.

Machine Vision:

Near-infrared wide band pass filters are utilised in machine vision systems for quality control and inspection processes in manufacturing industries to detect defects, measure thickness, and assess material properties.

Medical imaging:

Near-infrared wide band pass filters are employed in medical imaging devices such as near-infrared cameras and spectroscopy systems for non-invasive diagnostics, tissue imaging, and blood oxygenation monitoring.

Security and surveillance:

Wide band pass filters in the near-infrared range are used in surveillance cameras and night vision systems to improve visibility in low-light conditions and enhance image quality for security monitoring applications.

Spectroscopy:

Wide band pass filters in the near-infrared range are essential components in spectroscopic instruments for chemical analysis, material identification, and process control applications across various industries.

Communications:

Near-infrared filters play a role in fibre optic communication systems by separating and transmitting specific near-infrared wavelengths for data transmission and telecommunications applications.