Precision Flat Windows

Ideal for interferometer flats, laser windows, beamsplitter substrates, or parallel plates.


Diameter Tolerance

+/- 0.125 mm

Thickness Tolerance

+/- 0.125 mm

Surface Quality

20-10, scratch-dig or better

Clear Aperture

90%

Edges

Fine ground and beveled


Quality Optics from a Trusted Supplier

American Owned & Operated

Esco Optics is a leading manufacturer of custom and catalog optics, precision optical components, and ITAR optics in the United States.

Military & Defense Supplier

As the leader for military and defense optics in the United States, Esco Optics adheres to the International Traffic in Arms Regulations.

ITAR Registered & Compliant

ITAR registered and compliant, Esco manufactures ITAR optics for all of its customers with the strictest confidentiality.