Single Surface Optical Flats
Sizes Ranging from ½" Diameter to 8" Diameter
Certified with a Zygo Interferometer
Each λ/20 Flat Includes a Certificate of Calibration
Available with Standard Metallic Mirror Coatings: λ/10 Mirrors, λ/20 Mirrors
Optical Flats are used as a reference (test plate) against which the flatness of an unknown surface may be compared. Each piece is precision polished by our master opticians and tested on a Zygo interferometer to insure the surface flatness. The secondary surfaces of our single surface flats are pitch polished to window quality for viewing the interference pattern. Each flat ships in a durable storage case for permanent protection. λ/20 flats also include a certificate of calibration.