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Close to the Christmas holidays, Goboservice introduces itself to the world of power LED projectors with a product with unique and innovative features: the DIVUM Goboprojector.

In figure 1 we see the projection of two gobos.

You notice that in the one on the left the part that should be black looks gray, so much so that you can also see the stick placed in front of the gobo. It may appear that “some light” passes through the parts that should be black in the gobo. In reality this is not the case. The phenomenon is in fact due to the so-called “back reflections”, that is to the reflections of the light on the lens as shown in figure 2.

On Friday 13th July, in an embrace of light, the past and the future met on the terraces of the Rocca di Vignola, a 13th century fortification located in the province of Modena. Towers and ramparts of the military artifact for a long time owned by the Contrari family, have returned to shine with the original decorations and colors no longer to affirm the lordship of a House over the territory as it once was, but that of the culture of color. The Vignola Foundation and the Apparati Epimeri visual design studio with the cultural project “SOGNO O SON DESTE” – created in collaboration with the foundations of the Cassa di Risparmio di Modena, Carife (Cassa di Risparmio di Ferrara) and BPER Banca – have committed themselves to an ambitious challenge: to create a highly original proposal for the iconological promotion of some of the most important artistic treasures that enrich Emilia.

On Friday, July 13, the past and the future met in an embrace of light on the rampart of the Rocca di Vignola, a Modena fortification of 1200s. The original decorations and colours of the towers and bastions of the military artifact, owned by the Contrari family for a long time, are brought back to life: not for the lordship to be as mighty as it once was, this time it’s for the colour culture. The Fondazione di Vignola along with the visual design studio Apparati Effimeri presented the “SOGNO O SON DESTE”, a cultural project implemented in collaboration with the Cassa di Risparmio di Modena, Carife (Cassa di Risparmio di Ferrara) and BPER Bank funds.

Golux, a new series of Gobo Projector made by Goboservice, recently debuted internationally in Paris, projecting gobos on architectural works such as La Tour Eiffel, the “Invalides” dome, the Arc de Triomphe and the National Library. The four most important monuments have unintentionally been the backdrop to the self-promotional incursions of the well-known French artist, John Hamon – the “most famous unknown face of the capital” – as the media renamed it, whose enigmatic smile has recently become more renowned than that of the Gioconda, especially now that it has been projected with a powerful and concentrated beam of light on the monuments of Paris.

Not everything is as it seems, especially when dealing with lights, shadows and reflections.
For example, take a look at the following picture which shows the projection of two black-and-white gobos.

When we speak about LED lamps we actually mean LED luminaires that today are mainly of two types: SMD and COB. 
LED (or light emitting diode) is a light source based on a semiconductor diode. When it is on, the electrons are able to recombine with the “holes” inside the diode, releasing energy in the form of photons: this effect is called electroluminescence.
Both SMD and COB are made of different diodes, however the COB has a single circuit.

ANSI Lumens only make sense when speaking about projectors or digital displays.

A measure expressed in lumens is meaningless for gobo projectors, as this article will show.