N-BK7 wedge window, Schott BK7 wedge


Diameter Tolerance

+/- 0.125 mm

Thickness Tolerance

+/- 0.125 mm


30’ +/- 5’

Surface Quality

20-10, scratch-dig or better

Clear Aperture





Fine ground and safety beveled*

*parts under 25.4mm in diameter may not have beveled edges

Precision Wedge Windows, N-BK7 Optical Glass

Esco PN:
  • $ 8360

Precision laser quality round wedge windows are ideal for applications where direct back reflections would be a problem. These elements are similar to the precision flat windows but have a deliberate wedge of 30 minutes. Optical flat wedges range from λ/4 (0.25 waves) to λ/10 (0.10 waves) flatness.

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


Have a Question?

Be the first to ask a question about this.

Ask a Question

We Also Recommend

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.