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October 2022

An overview of the functionality & design of our precision Infrared (IR) Optical filters.

Infra-red filters have generally utilized rare-earth materials along with deposition systems, which require high power usage over long production times.

Brinell Vision has been developing new deposition methods utilizing environmentally sustainable materials, along with the latest electronic switch-mode power supply designs. These not only dramatically reduce power consumption in filter production but also have resulted in dense, high-hardness, non-porous, and high-performance filters for applications such as astronomy and space sensors.

Brinell Vision infrared filters in astronomy & climate monitoring from Space?

Terrestrial installations of our high-performance filters include the Gemini-8m telescopes, instruments at the Institute of Astronomy Hawaii and Mount Palomar. Recently, we have also been working with the Institute of Instituto de Astrofísica de Canarias on a unique filter technology to be used in space-based-infrared-astronomy.

Image Credits: IAC

The Indian Space research institute has adopted our Mid-IR optical filter technology for geostationary satellite sensors, which detect cloud patterns and storm systems in six spectral bands from space. The ISRO satellites were used in May 2019 to predict the landfall position of a dangerous cyclone forming in the Southern Indian Ocean, allowing the evacuation of over one million people from those areas. Without this technology, a similar cyclone in 1999 claimed close to 10,000 lives.

INSAT-3DR, is an advanced meteorological satellite and is equipped with IR imaging system and an atmospheric sounder which provides data on various aspects like temperature and humidity for weather forecasts.

Here’s How Five ISRO Satellites Playing Key Role In Saving Several Lives In Flood-Hit Kerala