sapphire window

Sapphire Windows AttributeSpecificationDiameter (Φmm)1.0 250.00Thickness (mm)≥0.1Diameter Tolerance (mm)±0.05Thickness Tolerance (mm)±0.02Clear Aperture>95%Parallelism10 sec.Surface Quality10/5Flatness (per 25mm@633nm)λ/4@any 25.4mm areaBevel (face width x 45°)<0.25mmCoatingUncoated, AR, HR, etc.Note for sapphire window: (1). Custom-made sapphire windows at any size from Φ1.0mm to Φ250mm clear aperture are available. Besides round, sapphire windows at shape of recangular, wedge, step windows or other shapes are available. (2). Thickness from 1.0mm to 75.0 mm is available upon request. (3). 100% clear aperture is available upon request. (4). Sharp edge is available upon request. (5). Sapphire windows with Anti-Reflective(AR), High-Reflective(HR), Partial-Reflective(PR) coating are available.