Welcome

Light does not care

whether you bend and shape metal reflectors or solve a Monge-Ampere problem (the latter is currently responsible for 90% of all publications but less than 5% of installations).

Customers don't really care

whether you set up a Poisson bracket in the phase space or you devise a thin lens from basic laws as long as the specification is fulfilled. Yes, sometimes there is not even a specs.

Successful Illumination Design

considerably benefits from mastering a wide variety of techniques. This website is part of some activities of the hosts to bring a few things closer together : • Non-imaging optics (mainly solar collection) and other Illumination design • Imaging Optics for Illumination • Freeform and real hardware • Phase space stuff the omnipresent Étendue, but also Hamiltonian optics and …

We do care

There are only a few textbooks on illumination optics. We do work on this issue. Julius is known for his Courses. And once per year we hold a live course together in Jena, Germany, and since 2024 we have been teaching the SPIE 1313 short course as well.

Le hasard ne favorise que les esprits préparés.

Fortune favors the prepared mind. (L. Pasteur)

News

Illumination Desgn Course (SC 1313) @ SPIE Optical Systems Design, Strasbourg 2026. Next Illumination Optics Course @ Optonet Jena Spring 2027

Last website update : Apr 2025

The Illumination Guild

The unicorn was saved ! Read the story.