Geometry and Meshing
Electromagnetic radiation can interact with a wide variety of geometric entities. In ray optics simulation, the most common elements include lenses, mirrors, prisms, beam splitters, light pipes, and various obstructions. Rays may also interact with buildings, vehicles, people, planets, and more.
The Geometrical Optics interface supports interaction with any type of geometric entity. The geometry can be constructed from primitives like circles and line segments, loaded from various CAD formats, or constructed with the aid of parts from the Ray Optics Part Library. Rays can also interact with both deformed and undeformed geometries, for example, when an object undergoes thermal expansion.
In this section, various considerations for setting up the model geometry and the associated finite element mesh are considered in more detail.
In this section:
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Domain Selection
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Ray Tracing in an Imported Mesh
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Part Libraries
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Meshing and Discretization Error
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Meshing Guidelines for Geometrical Optics Simulation