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Modeling of Total Internal Reflection (TIR) Prism


In this example, we illustrate the modeling of interference and vignetting effects at a total internal reflection (TIR) prism, where these effects are appearing especially for the transmitted part of the light. The discussed type of prism usually consist of two parts, which are glued together with a material of a slightly different refractive index. Dependent on the characteristics of the impinging light, vignetting as well as interference effects are appearing, which are introduced by the narrow gap between both prism parts.

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