The lighting installation L4 was set-up especially for the 175th anniversary of the Academy of Art & Design Offenbach. The interactive installation was planned in order to stage-manage and illuminate the translucent Lounge Landscape-shapes at the main square of the atrium - a hundred of people had been expected for these open days.
The outdoor setup had to fit the requirements of temporary devices, such as: technical durability, functional reliability, temperature-stability, security in every aspect - specifically in questions of electric shocks, mechanical pass trough, humidity caused by rain and thermal fluctuation - and many more. Nevertheless the whole project had to be realised with a extremly slender budget. Thus the first idea for the installation had to be rejected.
Shortly before Osram had introduced a new dimmable compact flourescent light - Osram Dulux EL Dim 20W - which seemed ideal for this kind of energy-efficient illumination project. I got in touch with Osram and enthused them to sponsor our plan with 18 of their newly launched Dulux El Dim - due to the sponsorship one main problem had been solved.
I assigned the geometrical data of those compact flourescent lights into the CAD and designed a inhouse producible, requirement-oriented outdoor lamp. The lamp consisted of two nearly similar pieces - both were rivetted together in order to achieve a highly robust housing. A conical clamping helped to seal the whole system from humidity. The lower side was constructed similar to a parabolic torus reflector with an integrated bevelling to circumvent the necessity of a galvanic reflector coating. The upper side had to appaer formally demure and shows the unabstracted parabolic torus.
The 18 lamps have been actuated by a DMX-dimmer - before the installation to run, every channel had to be coded for every step of the sequence. The installation peformed nonstop - all the 5 days - without any troubles. Osram's energy-efficienct compact flourescent lights did their job very well - thank you!