These lenses are typically made from durable borosilicate glass and heat strengthening (tempering) is available for added durability. Glass Roundels and Cover glass can also be made from Technical Filter Glass,Night Vision (NVIS), covert,and other glass formulations.
Roundels and cover glass are typically used in the following markets:
To learn more about Glass Roundels and Cover Glass,click here to contact Darin Bernardi, Sales & Marketing Manager