Brand IOS
Model Optical Window
MPN 2300

Check the listing for details. Optical Window: 1.5" Dia. 1/8 λ (3 micro-inch) Surplus Working Grade Optic Flat. Condition: New. Listed at 26.00 USD. Both sidesWorking Grade. The flatness of sampled parts is verified to 1/8 wave band as shown in the monochromatic flatness images of both sides to 100% of the optical flat being compared to a larger reference grade flat in the photos.

$18.20
$26.00