From September 1 to 7, 1936, the third International Congress for Light Researchers was held at the Wiesbaden Kurhaus. Scientists from all over the world discussed the latest findings in their field of research and explored future applications for new technologies.

At a reception in honor of the international guests, the President of the Congress, the honorary members and the President of the International Light Committee with his Vice President, the Secretary General and the Treasurer signed the city's Golden Book.