Capabilities
Advanced Optical Analysis
Sophisticated modeling and simulation techniques for complex optical engineering challenges
Zemax User Defined Surfaces
Sometimes it is necessary to create User Defined surfaces to accurately model an optical system. Below are shown three such surfaces: a Radial Basis Function surface, a collection of micro-prisms, and a superposition of cosine terms. A sinusoidal surface is used to model mid spatial frequency error.
Micro Prism Surface
Custom micro-prism array surface for modeling complex light redirection and diffraction effects in optical systems.
Sinusoidal Surface
2-D cross-section of a sinusoidal surface used to model mid spatial frequency error in precision optical elements.
Radial Basis Surface
Radial Basis Function surface for accurately representing freeform and aspheric optical surfaces in Zemax.
Translating FEA Results to Optical Analysis
OEA wrote surface fitting routines in MATLAB for translating deformations to optical surfaces provided by FEA modeling into parameters used in ZEMAX and FRED. A fit surface from FEA is translated into a surface sag in Zemax EE before deformation, then compared to Zemax EE after deformation to quantify the optical impact of structural loads.
FEA Surface Fit
Surface deformation data exported from finite element analysis model
Surface Sag Translation
MATLAB routines convert FEA deformations into Zemax surface sag parameters
Pre-Deformation Baseline
Zemax EE optical performance evaluated before structural deformation
Post-Deformation Analysis
Zemax EE optical performance compared after deformation to quantify impact
Tools & Software Used
MATLAB
Custom surface fitting routines for FEA-to-optical translation
Zemax OpticStudio / EE
Optical system modeling, surface sag definition, performance evaluation
FRED
Advanced stray light and non-sequential ray tracing analysis
User Defined Surfaces
Custom DLL surfaces for micro-prisms, RBF, and sinusoidal profiles
Need advanced optical modeling for your project?
Contact OEA to discuss custom analysis, FEA integration, or user defined surface modeling.