Sapphirre Windows

Sapphire Windows

Attribute Specification
Typical Diameter (Φmm) 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0
Typical Thickness (mm) 0.5, 1.0, 2.0
Diameter Tolerance (mm) +0.0/-0.2 (General), +0.0/-0.1 (High Precision)
Thickness Tolerance (mm) ±0.2 (General), ±0.05 (High Precision)
Clear Aperture >75% (Small Size), >90% (Large Size)
Parallelism 3 min. (General), 10 sec. (High Precision)
Surface Quality 80/50 (General), 40/20 (High Precision)
Flatness (per 25mm@633nm) λ(General), λ/4 (High Precision)
Bevel (face width x 450) <0.25mm
Coating Uncoated, AR, HR, PR, Coating, etc.

 

Note for Sapphire Window:
1). Custom-made Sapphire windows at any size are available.
Besides round, Sapphire windows at shape of quadrate, triangular, or other polygonal are available 
2). Other thickness from 0.5mm 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.

Standard Sapphire Window series: 

Diameter Tolerance: ----------------------- +0.0, -0.1mm 
Thickness Tolerance: ---------------------- ±0.2mm 
Clear Aperture: ------------------------------>80% 
Parallelism: ------------------------------------ 1arc minute 
Surface Quality: ----------------------------- 80/50 scratch and dig 
Wavefront Distortion: --------------------- l per 25mm @633mm 
Bevel: ------------------------------------------- <0.25mm x 45° 
Coating: ---------------------------------------- Uncoated

 

Part No.

F( mm)

T (mm)

WIN3101

8.0

0.5

WIN3102

12.7

1.0

WIN3103

20.0

2.0

WIN3104

25.4

1.0

WIN3105

25.4

2.0

WIN3106

30.0

2.0

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