Unterwegs im Licht 2022, Freitag

Since last Friday, until tonight, our urban “Soundless Music” light composition for Potsdam Unterwegs im Licht 2022 is running. The photo shows Potsdam’s Nikolaikirche in a blue dress of winter light, with which our composition started on Friday evening. Over spring-like green light moods on Saturday and summer-like yellow-orange light scenes on Sunday, the four days of Unterwegs im Licht 2022 end today with a thoughtful backdrop of dark red tones, which are accompanied by light moods from ALL MAIN COLORS of the color spectrum for the FINALE at 9 pm.

Photo by Alexander Rentsch.

Link to the issue:


„Soundless Music”

The illuminated Potsdam city center 2022

This coming weekend our “Soundless Music” LIGHT concept will be presented in the City of Potsdam.

Starting Friday and ending Monday we have developed a lighting concept that sets the city each evening in a color composition that expresses in “Soundless Music” the universal process of THERMODYNAMICS.

Beginning with BLUES on Friday and ending with the REDS on Monday, the LIGHT composition created for the city center works with 18 buildings, each with 24 light scenarios that harmonize and play off each other to generate an immersive walk through “Gesamtkunstwerk” of public space, architecture, light and time.

Starting Friday, the Beauty of the COLD Winter months is celebrated in Serene BLUES and INDIGOS, which give way to the Optimistic Greens of Spring on Saturday and are followed on Sunday by the WARM Summer Joy of Yellows and Oranges, the dynamic process closes on Monday with the Thoughtful setting of dark Reds partnered by the full color spectrum.

“Wir haben Euch nicht vergessen”.

In these difficult times and with this LIGHT ART action, the City of Potsdam wants to communicate to its citizens and their cultural institutions that they have not forgotten the importance of CULTURE in the City and the importance of all who work in the cultural scene.

WE celebrate for all the beauty of life and art in (Licht) Culture this weekend.

The illumination is realized by the following partners: Landeshauptstadt Potsdam (organizer), P3 Projekt GmbH (organization), Ruairí O’Brien . Lichtdesign (lighting concept), TLT Event AG (technical realization)

Link to the issue:

Unterwegs im Licht. Aber sicher! – Potsdam Marketing und Service GmbH (



Daylight design in architecture

For this year’s first Design Studio at the German University in Cairo, Ruairí O’Brien worked with his students on the importance of daylight in housing.

LIGHT is an energy, life and mood-giving force in architecture.
The special properties of the morning, midday and evening sun can be used to model and shape the architectural volume (the importance of northern light). Light can be used to shape walls, position openings, and form roofs.

For example, energy conservation also begins with providing excellent daylight to building occupants and reducing the need for artificial lighting. Understanding how light and shading can be used to create thermal comfort for occupants is critical to building success.

The architecture of light is about beauty and the intelligent use of resources.
Daylight can be used for free and its tremendous value is widely underestimated in the building industry. Architectural design begins with an understanding of this resource.




Prof.’in Mary-Anne Kyriakou

Dr. Emrah Baki Ulas, University of Technology Sydney

Ruairí O’Brien, Architekt und Lichtdesigner

“Die Lichtdesigner Community ruft im Allgemeinen und was den Klimaschutz anbelangt, den Kampf für die gute Sache (Licht) auf. Wenn der Kunde es aber möchte und dafür bezahlt, machen wir vor allem schönes Licht, wir beleuchten – unabhängig von den Kosten für die Umwelt, die Architektur oder den öffentlichen Raum, die wir ausleuchten. Sind wir als Community damit im Reinen? Oder ist es uns einfach nicht so wichtig?” Ruairí O’Brien

“The lighting design community in general and as far as climate protection is concerned, calls the fight for the good cause (light). But if the customer wants it and pays for it, we make beautiful light first and foremost, we illuminate – regardless of the cost to the environment, the architecture or the public space we illuminate. Are we as a community at peace with this? Or is it simply not that important to us?” Ruairí O’Brien


Donnerstag, 18.11.2021

Zeit: 08:15-09:30

Weitere Informationen finden Sie Unter:


Informations-Licht-Skulptur Slaughterhouse Five in der Presse

The current issue of the magazine “diesseits” ( of the Humanist Association Germany published an article about Kurt Vonnegut and his book “Slaughterhouse-Five” that is well worth reading. For the illustration of the article a photo of Ruairí O’Brien’s memorial wall and information light sculpture Slaughterhouse-Five in the Messe Dresden was chosen by the Radaktion. Link to the issue:


Lichtkunst im öffentlichen Raum

University of Berlin, on 18.05.2021


UNESCO International Day of Light

Zum internationalen “Tag des Lichts” 2021 präsentieren wir den folgenden Kurzfilm von Ruairí O’Brien. Der Film ist der erste aus einer Reihe von Kurzfilmen, an denen er über das “Licht von Kairo” arbeitet. Dieser erste Film der Serie konzentriertsich auf einen Tag und eine Nacht im Kairoer Stadtgebiet von Maadi am Nil. Der nächste Kurzfilm wird sich auf das Gebiet “Downtown” konzentrieren.

To celebrate the “Day of Light” 2021, Ruairí O’Brien has put a short film online.
The film is the first from a series of short films he is working on about the “Light of Cairo”. This first film in the series focuses on a Day and a Night in the Cairo city area of Maadi on the Nile.The next short film will focus on the area of “Downtown”.


Internationaler Tag des Lichts / International Day of Light 2021

We celebrate the Unesco International Day of Light with “Light of Cairo”, a “micro” film. 

Day and night impressions filmed celebrate the simplicity and grandeur of light in our everyday life. In 2001 I stated, people have a “right to darkness” and began recording light scenes during “Light Walks” in cities. 

The film will be presented in Vimeo and YouTube on the 16.05.2021 

Finde more about the IDL 2021 Event Programme worldwide under:


Less Light to See More

The image above shows a screenshot from the Arte cultural magazine “Twist” with the theme “Design Total!” from May 2, 2021 (excerpt from a light poetry performance by Ruairí O’Brien).

The program, to which we link below the text, traces, among other things, the fascination of lighting design and introduces (from about the 21st minute) two lighting designers for whom less is more: Ulrike Brandi (internationally renowned lighting designer, including the Elbphilharmonie) and Ruairí O’Brien. In the interview, O’Brien makes the case for a “lighting culture” and clarifies his lighting design approach of “Less Light to See More”.

We thank the Arte magazine for the beautiful contribution.

“Twist” vom 02.05.2021 können Sie hier ansehen: Design durch die Zeit | TWIST | ARTE – YouTube


Living and light spaces – challenge to a new kind of lighting design

Light 2021 Online Forum

Wednesday, 24.03.2021

Time: 15:45 – 17:05 Uhr

For more information, please visit: 


Now and Here – Restaurant, Bistro, Appartmens at the Post Square

5 years anniversary of our planning of the house at the Postplatz. On the occasion of this anniversary, we have reimagined our Postplatz project.  

Weitere Informationen finden Sie hier.


Potsdam Unterwegs im Licht 2021

Today actually Potsdam – Unterwegs im Licht 2021 would take place. Because it must be cancelled due to the current Corona situation, we enjoy once again the impressions of last year and hope for a new Unterwegs im Licht 2022.

For more information, please visit: