Illumination
The illumination feature can be used for both imaging and non-imaging systems. Light distribution can
be analyzed at any arbitrary surface and is shown as wire-grid plot, contour plot, false-colour plot, or as a
photorealistic image (RGB). Includes transmission and absorption effects, vignetting and spectral weighting.
Light Sources
The following light sources are supported:
- Flat emitting sources, with circular, elliptical or rectangular shape,
- Bitmap sources, that is, the spatial source emittance is defined in a bitmap image (e.g. photo of a source),
- Ray sources, i.e. the source emission is characterized by rays.
In addition, for all flat emitting sources and bitmap sources, the angular emission characteristics
can be adjusted, including Lambertian characteristics or arbitrary cos
x emission characteristics.
Sources may be arbitrarily defined in 3D-space. The number of rays traced for a specific source is unlimited.
Imaging of a 2D Bitmap Picture
Use photos (in PNG, GIF formats) as a source for rendering the image or light distribution at any arbitrary surface in
the optical system. The example below shows the blurred image of an eagle.
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| Source defined as bitmap |
Extended image using the illumination feature |
Ray Sources:
Ray Source Models describe the spacial and angular emittance characteristics of a source by a collection of
real rays, where each ray is defined by spatial and angular coordinates, and intensity.
Ray sources may be defined in ASCII files or binary files. Binary source files accept the ASAP *.dis file format.
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| Photo taken from a Tungsten lamp |
Image Analysis of Tungsten Source based on ray model (1 Mio rays) |
Analysis Options
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| Photorealistic rendering of light distribution |
Contour plot |
Slices |