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Windows are used to admit light into an optical system and to exclude dirt and moisture. When selecting windows you should consider materials, transmission, scattering, wavefront distortion, parallelism and resistance to certain environment. Windows may also be used as coating substrates for use in a wide range of applications. RAYDA provides a wide rang of different materials, different coating (single layer or multilayer AR coating,laser coating) and different parallelism precision windows.

Our company produce windows with a variety of materials,included:
  • Float glass
  • BK7
  • Fused silica(JGS1,JGS2,JGS3)
  • Silicon
  • Germanium
  • ZnSe
  • CaF2
  • MgF2
And so on. They are good quality,durable and strong. 
To select a window,material,transmission,scattering,wavefront distortion,parallelism,and resistance to environment should be considered.
Diameter Tolerance: +0.0, -0.15mm
Thinkness Tolerance: +/-0.2mm
Clear Aperture: >85% of diameter
Parallelism: <1 arc minute(Standard), <10 arc seconds(Precision)
Surface Quality: 60-40 scratch and dig(Standard), 40-20 scratch and dig(Precision)
Flatness: lambda/4 per 25mm@632.8nm(Standard), lambda/10 per 25mm@632.8nm(Precision)
Wavefront Distortion: lambda/4 per 25mm@632.8nm(Standard), lambda/10 per 25mm@632.8nm(Precision)
Bevel.: 0.25mmx45deg


Address: BLD# 61,Jinshan Industrial Area,Fuzhou,Fujian350008 China Tel: +86-591-8780 9021
Fax: +86-591-8780 1021 Email: sales@fitecoptics.com
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