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Ruhrlights 2010

In the rural countryside of the lower Ruhr valley that’s known for its agriculture, nature and industrial culture, the European Capital Of Culture "RUHR 2010" presents 11 internationally acclaimed light artists. From September 2010 the festivals “Ruhrlights: Twilight zone” transforms the Ruhr valley between Hagen and Duisburg into a fascinating route of light.

 

Andreas M. Kaufmann has in the frame of his project “Dem Ort seine Sprache” (The place of their speech) illuminated two particular constructions on the Ruhr. The first is an old industry wall on the Heinrichshuette in Hattingen and the other is the ruins of castle Hardenstein near Witten, both lying directly on the banks of the Ruhr.

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Self made gobos

Do you want to have a go at making your own gobo? No problem! Here we'll explain how you go about it with an outlay of about 10 cents and a bit of craftsmanship. Take into account the safety limits and power of your projector and remember that your self made gobo can get very hot when it's in use.

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Derksen LED Projector

 

A New Light Source For Projection Systems

No other light source can match the efficiency of an LED, the acronym for Light Emitting Diode. An LED generates light without UV and infra-red radiation. It also guarantees durability of up to 30.000 operating hours by low energy consumption and a compact style. You can quickly recoup the initial expenses. The first light emitting semiconductor crystals were generated in 1962 and since then as technical development progresses, we're led to expect a doubling of the light yield every two years.

Discover the LED Art Projector

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What is a gobo?

The word "gobo" is used in the world of light and lighting to mean a shaped template which is held in front of a light source to form a particular image in the light beam. The origins of the word are not proven but some sources quote it as possibly being an acronym for "graphical optical black out" (Wickipedia.org).

Gobos with simple shapes are made out of sheet metal whilst the more complicated and coloured graphics used for the majority of images are reproduced on glass gobos. Typically any free area in a metal gobo has to be connected to the gobo via a web, the inside of the letter O for instance, but the creativity allowed by glass gobos knows no bounds. Logos, graphics or texts of extremely high quality can be projected to appeal to the public. Even photographic pictures can be transferred onto glass gobos using a four coloured raster grid (CMYK). They can be in continuous use professionally and hold their colour whereas traditional slides and films begin to fade after a short time.