Leading Global Supplier of Optical Filter Solutions

Wide range of high performance custom optical filters
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IDEX Corporation Continues Strategic Capital Deployment with Agreement to Acquire Iridian Spectral Technologies


Optical filters for free space telecommunication links

Spectroscopic Filters

Broadly speaking, these filters are used in optical systems based on Raman spectroscopy or laser-induced fluorescence.

Telecom Filters

High quality telecom filters at competitive prices to meet the ever increasing wireless and fiber-to-the-home traffic demand.


Optical filter solutions for LIDAR applications

Multi-Zone Filters (MZF)

Iridian offers both assembled multi-zone filter arrays and patterned multi-zone optical filters to address these growing needs.

Mid IR

Iridian’s SWIR, MWIR and LWIR bandpass filters are designed to optimize detection of spectral emission lines.

The Leader in Optical Filter Solutions

Iridian was founded in 1998 and It covers the entire spectrum from prototype development to volume production. Over the decades. Iridian has developed a high degree of automation in order to ensure high quality and low cost products. It has an unparalleled capability to produce both high volume commodity filters and custom thin film optical filters.

Latest News

Letter from Iridian President Regarding COVID-19

Letter from Iridian President Regarding COVID-19

Iridian Spectral Technologies is maintaining normal operations during this COVID-19 pandemic period. We continue our dedication to delivering your filters on time with the highest quality.
Our manufacturing capacity and lead times are unaffected; we have adequate supplies of raw materials onsite and have not been notified of any interruption in material supply from our key suppliers.

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Upcoming Events

Come Visit Iridian at SPIE DCS 2023

Come Visit Iridian at SPIE DCS 2023

Iridian will be once again exhibiting at SPIE DCS, May 2-4 in Orlando.  Please visit us at booth #822 to discuss optical filter needs in sensing applications such as Earth observation (EO), LiDAR, MWIR gas sensing and others. 

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