Outsourced in-house partner for

Anti-Reflection Coatings

We design to your specs and can meet high mix, low and high volume requirements.

Penn Optical Coatings is an ITAR registered and ISO certified provider of high-precision standard and custom optical thin film coatings. We are a trusted supplier to optical fabricators and manufacturers who serve the diverse needs of the commercial and defense industries.


CEO Iain MacMillan explains the design choices that impact your outcomes.


Our coating manufacturing processes define our quality and performance from optical coating design to final inspection.


Extensive tooling library for optics from 1 mm to 1 m.

Range of process technologies for AR coatings in extreme UV, visible, and IR.

Anti-Reflection Coatings Built for the Extremes

Designed to withstand extremes in temperature and humidity, our durable UV, Visible, and IR coatings improve the performance and lifetime of your application.

How can we support your next optical coating project?