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Optical Components from Tower Optical

Windows

Circular, Square and Rectangular
Tower Optical manufactures windows from BK7, UV Grade Fused Silica and Sapphire.

Do you have special requirements or would like individual consultation? Please contact our engineers at:

Sales
Phone: +49 89 321412-43
sales[at]imm-photonics.de


Windows

Specifications Standard Grade High Grade Laser Grade High Grade
Material BK7 grade A BK7 grade A UV fused silica Sapphire
Diameter 5 mm to 50 mm 5 mm to 50 mm 5 mm to 50 mm 5 mm to 50 mm
Dimensional tolerance + 0.0 mm / - 0.1 mm + 0.0 mm / - 0.1 mm + 0.0 mm / - 0.1 mm ± 0.1 mm
Flatness (TWF) λ/2 @ 632.8 nm λ/10 @ 632.8 nm λ/10 @ 632.8 nm λ/4 per 25.4 nm
Surface quality 40/20 scratch/dig 20/10 scratch/dig 20/10 scratch/dig 40/20 scratch/dig
Thickness tolerance ± 0.2 mm ± 0.2 mm ± 0.2 mm ± 0.2 mm
Parallelism < 1 arc min < 10 arc sec < 10 arc sec < 30 arc sec
Bevel 5 mm to 50 mm 5 mm to 50 mm 5 mm to 50 mm 5 mm to 50 mm
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