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Illumination system designs using TracePro are often accomplished in an iterative manner with modifications between steps handled manually or through 2D and 3D optimization based on user-defined criteria:
TracePro models are created by importing lens design or CAD files, or by directly creating solid geometry within TracePro. You can modify imported or built geometry using move, rotate, and scale operations for solid objects and sweep and revolve operations for surfaces via the user-friendly, 3D CAD interface. Special tools allow you to insert primitive solids (tubes, blocks, cones, and spheres), and optical elements (lens elements, reflectors, and Fresnel lenses).
TracePro’s utilities allow interactive sketching to quickly enter 2D and 3D profiles and then extrude, revolve, and combine these profiles to create sophisticated geometry, like lightpipes and biconic reflectors, as well as free-form optics. Visualization options include solid rendering, silhouette, wireframe, hidden line views, and the ability to pan, rotate, and zoom, as well as other standard geometry manipulation techniques.
A wide range of material and surface properties are available to apply to objects and surfaces in the model. Optical properties that you can specify include index of refraction and absorption coefficient, aperture diffraction, reflectance and transmittance coefficients, surface absorption, surface and volume scatter, polarization, fluorescence, gradient index, and temperature distribution. You can create surfaces with random or periodic arrays of repeated structures using the RepTile™ feature. You can define custom properties or choose from TracePro’s database of commercially-available materials and coatings.
TracePro simulates the distribution of luminous intensity, irradiance/illuminance, and flux throughout a model or at selected surfaces by tracing rays using the Monte Carlo method. Light sources are modeled by emitting rays. Additionally, TracePro’s Surface Source Property Utility enables you to digitize angular and spectral information directly from a manufacturer’s datasheet.
You can define ray sets using any combination of three methods:
The TracePro ray tracing engine is known for both performance and accuracy.
TracePro provides a comprehensive set of tools to view and analyze results of the ray-trace including:
Map and plot output can be further controlled with Ray Sorting. For example, analysis results can be filtered to show only the rays intersecting a surface, rays of a certain wavelength, interaction type, or flux range.
TracePro offers sophisticated 2D (for axially or biaxially symmetric systems) and 3D (for asymmetric systems) optimization providing complete and interactive control of optimization parameters.
TracePro can generate a variety of ray trace and property reports. For example: