Light incident on an optical component undergoes reflection, transmission and absorption.

In some cases it is desired that the entire incident light will be transmitted (reflection & absorption = zero) like in lenses, in other cases it is desired that the entire incident light will be reflected (transmission & absorption = zero) like in mirrors, and there are cases where some part of the incident light is to be reflected and some part is to be transmitted (absorption = zero) like in beamsplitters

Optical coatings are used to modify the reflection/transmission ratio of an incident light and thus determine if it's going to be a lens, mirror, or a beamsplitter.Each coating is designed for a specific substrate material, wavelength range, angle of incidence, and polarization.In high power laser applications the LDT value of a coating is a critical parameter.

The Laser Damage Threshold (LDT) will determine how much power the coating can withstand before it burns.
Prolog Optics can offer you both metallic and dielectric coatings. Our solutions covers the entire range of coatings: Anti-Reflective, Reflective, Filters, Polarizers, etc.

There are various technologies used in the production of thin film coatings. No technology is best suited for all applications and the coating expert is to decide which technology is to be used in each case.


Prolog optics can offer you through its suppliers the entire range of coating technologies. Our engineers will help you find the most suitable technology for your specific application.


One of our specialists for coatings manufacturer is REO Inc.