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OptiLayer:  Your Partner in Design and Post-Production Characterization of Optical Coatings


Coatings for Architectural Glass

Modern buildings and houses are often clad in double panes (double glazing) or triple panes (triple glazing) to enhance views and daylight. The optical qualities of the glass and its multilayer coatings are important from both practical and aesthetic pints of views.

Panes are manufactured with glass in range of thickness from 3 mm to 10 mm. Laminated or tempered glass may also be used as part of the construction.

OptiLayer allows designing all types of panes-coatings combinations and achieving any specified target specifications with the help of the powerful stack tool.

Simplified example: two glass panes with antireflection coatings on both of them.  

Target specifications:

  • maximize light transmittance (visible light); 
  • maximize solar transmittance;
  • provide colors of the reflected light in the range: -3<a*<2, -3<b*<2;
  • maximal Color Rendering Index (CRI);
  • working angular range is from 0 to 60 degrees;

coatings for architecture glass

OptiLayer allows simultaneous specifications of targets of different types: conventional, color, integral and electrical-field. In this particular design problem three types of targets are involved:

  • Conventional target (T=100% in the range from 300 nm to 2500 nm);
  • Integral Target: Light Transmittance=100%, Solar Transmittance=100%;

GlassPanes IntegralTarget

Spectral luminous efficiency \(V(\lambda)\) and spectral distribution of solar radiation \(S(\lambda)\), which are necessary for calculations, are built in OptiLayer (F1, F2). Of course, you can define and use your own spectral distributions (F3, F4, etc).

coatings for architecture glass coatings for architecture glass

Possible thin film materials: TiO2, SiO2, Silver.

Result: a double glazing with 8-layer metal-dielectric coatings on the internal surfaces.

OptiLayer allows evaluating integral values of spectral and color characteristics:

coatings double glazing


  •  Color target:

coatings for double glazed windows OptiLayer allows specifying color targets in all existing color coordinates systems.

One of the results:

Transmittance of the double glazing in the spectral range from 300 nm to 2500 nm for different angles of incidence.

coatings for windows

OptiLayer allows specifying targets weights. It means that depending on your preferences you will achieve a required balance between target specifications of different types.

Color coordinates for different incidence angles are plotted on the chromaticity diagram:

coatings for double glazed windows

Color Rendering Index is 90-95% in the whole angular range!

Easy to start

Icons 100x100 1OptiLayer provides user-friendly interface and a variety of examples allowing even a beginner to effectively start to design and characterize optical coatings.        Read more...

Docs / Support

Icons 100x100 2Comprehensive manual in PDF format and e-mail support help you at each step of your work with OptiLayer.



Icons 100x100 3If you are already an experienced user, OptiLayer gives your almost unlimited opportunities in solving all problems arising in design-production chain. Visit our publications page and challenge page.


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