Lysmodell

Lysmodell is a term that appears in Norwegian and other Scandinavian language contexts, combining lys meaning light and modell meaning model. In English-language technical literature, lysmodell is not a standard term, and there is no single accepted definition. When used, lysmodell generally denotes a conceptual or computational representation of how light behaves in a given environment, or a framework for simulating illumination.

Its usage tends to be domain-specific and informal. In optical engineering and photometry, a lysmodell might refer to a simplified model describing sources, surfaces, and the interaction of light with matter, intended to predict luminance, glare, or energy use. In computer graphics or architectural lighting, a lysmodell would be related to a lighting model or radiance equation used to render scenes or plan illumination.

Because lysmodell is not standardized, practitioners normally specify the exact model by naming the underlying theory (for example, a Lambertian or physically based rendering model) or describing input parameters, geometry, and material properties. The term thus functions more as a lay or regional label rather than a universal technical term.

Related concepts include lighting model, illumination model, photometric model, and radiative transfer. The term is more likely to be encountered in Scandinavian-language texts or regional discussions about lighting design or visualization rather than in international technical literature.