Let us help you succeed

You are the expert in your field of application and by understanding your unique challenges, we can find the best optical filtering solution for you,

At Delta, we always engage in a dialogue with our customers and it starts with the first call.

Why not take the first step towards optimizing your application?

Book a 30-minute meeting with Soren, our Sales Director, and let’s discuss how we can tailor our expertise to your vision.

Your innovation, coupled with our solutions, could redefine what’s possible. Let’s explore together.

Do you need to know more about us?

Specifying optical filter

Read our guide on how to specify your optical filter to make sure you get the exact performance and cost you need.

Specifying optical filters

Tech Notes and Papers

Dive into our large library of knowledge about optical filter coatings and applications.

Tech notes and papers

Our history

For over six decades, we have been meeting customer and market demands for complex custom optical filters.

Read our history

Why Delta?

Discover why Delta Optical Thin Film is your choice for advanced optical filters: unmatched quality and innovation.

Why choose us