
Sapphire Window Clear Aperture and Edge Exclusion: How to Specify the Usable Optical Area
A sapphire window may have a precisely controlled outside diameter, thickness and polished surface, but this does not mean that every part of the component can be used as an optical area. The region near the perimeter may contain an edge bevel, mounting contact, coating transition, polishing roll-off or allowable cosmetic imperfections. For this reason,









