Illumination Systems
The development of illumination systems is a large part of the optical engineering business worldwide. From automotive lighting to backlit displays for laptop PCs, illumination systems are ubiquitous!

Backlit display w/gradient diffuser (left),
irradiance/uniformity calculation (right)		 True color image of white pixel projected onto a screen showing residual lateral color
FRED has all of the tools necessary for modeling and analyzing illumination systems, including:
• Geometry import from lens design and CAD programs
• Source models constructed from measured data
• Predefined prism models
• Diffuser and general scatter modeling
• Amplitude, dichroic and polarizing filter models to create color wheels, polarizing elements, etc.
• Fast non-sequential raytracing that tracks actual power (watts, lumens, etc.)
• Irradiance, intensity, and true color image calculations

With a small outlay of effort, an optical engineer using FRED can quickly and confidently build and analyze any type of illumination system.

Backlight with scatter dots

LCD Projector system with arc lamp technology  and LCD backlight with varying dot pattern (above)

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