square windows

Introduce Windows are applied to isolate different physical environments while allowing light to pass. When selecting windows you should consider materials, transmission, scattering, wave front distortion, parallelism and resistance to certain environment. JUKE offers a wide range of different materials and different degree of precision windows.
Specifications
Material BK7 and Fused silica typically, Visible optical glass, Infrared optical glass, Colored glass.
Tolerances Low precision Standard Precision High precision
Glass Quality nd ÿ?.001 ÿ?.0005 Melt controlled
vd ÿ?.8% ÿ?.3% Melt controlled
Dimension Tolerance (mm) ÿ?.20 ÿ?.10 +0.01/-0.01
Thickness Tolerance (mm) ÿ?.20 ÿ?.1 ÿ?.005
Scratch-Dig 80-50 60-40 10-5
Wave front Distortion @632.8nm ¥Ë per 25mm ¥Ë/4per 25mm ¥Ë/20 per 25mm
Clear Aperture 80% 90% 100%
Parallelism (arc min) 3-5 minutes 1 minutes 10 second
Bevel 0.3ÿ?.20mmx45ÿãor upon requirement No bevel
Coating Coating may be available by custom order

Part No. circle: J(JUKE)01(window)-C(circle)-¥Õ(diameter)-T(thickness)
square: J(JUKE)01(window)-S(square)-A(length)-B(width)-T (thickness)
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ÿûIrregular-shaped or non-standard size substrate may be available by custom orders.