Note for Borofloat Window:
(1). Custom-made Borofloat windows at any size are available.
Besides round, Borofloat windows at shape of quadrate, triangular, or other polygonal are available
(2). Thickness from 1.0mm to 50.0 mm is available upon request.
(3). Better bevel is available upon request.
(4). Windows with Anti-Reflective(AR), High-Reflective(HR), Partial-Reflective(PR) coating are available.

Attribute Specification
Typical Diameter (Φmm) 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0
Typical Thickness (mm) 1.0 ~ 50.0
Diameter Tolerance (mm) +0.0/-0.2 (General), +0.0/-0.02 (High Precision)
Thickness Tolerance (mm) ±0.2 (General), ±0.005 (High Precision)
Clear Aperture >80% (Small Size), >95% (Large Size)
Parallelism 3 min. (General), 3 sec. (High Precision)
Surface Quality 60/40 (General), 10/5 (High Precision)
Flatness (per 25mm@633nm) λ /2(General), λ/10 (High Precisiion)
Bevel (face width x 450) <0.25mm
Coating Uncoated, AR, HR, PR, Coating, etc.





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