Litracon light-transmitting concrete


Our story last month about the launch of a product called TranslucentConcrete provoked a lot of comments, with many people pointing out that a similar product called Litracon was patented in 2002.

Now Litracon inventor Hungarian architect Áron Losonczi has contacted us, requesting the opportunity to set the record straight.

Below is an open letter from Losonczi, plus photos of the Cella Septichora Visitors Centre in Pécs, Hungary, which has a door made of Litracon blocks set in a steel frame. The centre, designed by Bachmann & Bachmann Architects, opened last summer - a full description follows Losonczi's letter:


Dear All,

The inventor of Litracon™ - Light-Transmitting Concrete is Hungarian architect Áron Losonczi. He invented this material in 2001. He filed his first patent in 2002 and it is now being granted internationally. Litracon is already patent protected Germany where the showcased “invention” is being advertised. ‘Litracon’ is a registered communitiy trademark.

We would like to inform you until now we have not give a license to anyone to produce or sell this material.

The only authorized manufacturer and distributor of Litracon™ products is:

Litracon Bt.
H-6640 Csongrád
Tanya 832

tel.: +36 30 255 1648


Cella Septichora Visitors Centre

Location: Káptalan utca, Pécs, Hungary

Client: Pécs/Sopianæ Örökség Közhasznú Társaság, Pécs, Hungary

Architect: Bachmann & Bachmann Architects (H)

Description of the ruins: World Heritage in Pécs

The area of Pécs has been inhabited continuously for about 2000 years, ever since the Roman times. The peoples formerly living here either side –by-side or one after the other left behind an impressing amount of archaeological finds. The ruins of the late Roman Christian Necropolis, located in the north-west of the inner city, in the vicinity of the Cathedral, are of particular interest considering they have survived several centuries of our stormy history.

The archaeological exploration of Sopianae (as Pécs was called in the Roman times) and its Necropolis has been going on for several hundred years already. The finds helped outline the town of Sopianae and the necropolis to the north of it, on the slopes of the Mecsek Hills.

The community of Sopianae built a significant number of burial structures (chapels, burial chambers, built tombs) in the 4th century. These buildings are of outstanding value both as to their architecture and artistic features. Since the year 2000 they have been on the UNESCO World Heritage list.

Cella Septichora Visitor Centre

Gyula Gosztonyi, architect-archaeologist initiated the exploration of the Cella Septichora early Christian burial structure as early as the beginning of the 20th century. It was also his idea that the burial chambers should be connected under the ground and opened to the public.

The grant of 1.5 billion HUF obtained from the Operative Programme of Regional Development for the implementation of the project ‘World Heritage in Pécs, Enhancement of its Touristic Appeal’ between 2004 and 2006, enabled us to realize that dream. As a result, visitors can admire the Wine Pitcher Burial Chamber, the Peter and Paul Burial Chamber, the Octagonal Burial Chamber, and Burial Chambers Nos. 3, 4, 19 and 20, opened to the public early 2007.

Sites open to visitors

Cella Septichora Visitor Centre

- Cella Septichora: This late Roman building with seven foils, built in the 4th century has a ground-plan which makes it unique in the area of the river Danube. In a depth of 4-6 m, on the former ground level visitors can see the walls rising as high as 2 m at places.

The door:

The 2 tons heavy Litracon door serves as the main entrance of the Visitors Centre. It was made out of 48pcs of 10cm thick blocks with post-tensioned rebars inbetween the blocks. The blocks are in steel frame to be able to move the structure. By day, on can see the shadows of the pedestrians and the surrounding trees from inside. By night, the door is illuminated from inside.

Size: W361cm / H244cm / Th10cm, in steel frame

Posted on Sunday January 20th 2008 at 9:37 pm by . Copyright policy | Comments policy

  • Nuno

    Why 3 times the same picture?

    Just in case we miss the other 2?

  • Andrew

    Good to see Aron getting his due!
    Ever since I first saw this concrete I’ve been fascinated by it.

  • xtiaan

    from what i recall of the other post, the other newer product has a more uniform light transer, which doesnt have the “patchy” quality this stuff has, which (IMOHO) is more asethetically pleasing…

    So yeah these guys did it first, but the newbies did it better

  • dsdas

    This translucent concrete thing is old stuff now..

  • Dear All,

    I am pleased to announce Litracon® won

    iF Material Award 2008

    This the 4th international honour Litracon® has received until now. 2005: “red dot: best of the best 2005”, nomination for “Designpreis 2006”, 2006: “LeaF Award 2006”.

    The outstanding entries will be presented within the framework of the material TRENDS 2008 special show at the HANNOVER FAIR from April 21-25, 2008.

    Everybody is very welcome to come and see Litracon® live!

    Kind regards,

    Áron Losonczi
    Managing Partner
    Litracon Bt

  • blue

    I am fascinated. Congrats Aron on all the awards.

  • dearbloke

    Yes Litracon was invented by Aron Losconzi ,it was way back in 2003-2004 i have seen about Litracon on an International German television channel DW TV ,an elobarate interview with Aron and the method of building the bricks was demonstrated by Aron,i could not forget this innovative invention and its inventor Aron, interview .Thank god he Patented,its really bad that some people copy and reproduce and cash on somebodies Artwork and invention and renaming (the Litracon as TranslucentConcrete),i just want to know who this fellow is who copies and renames the product,this guy should be sued and criminal charges should be imposed

  • prashant

    hello… i am a student.. and want to know all the possible details of the litracon… if possible please help me out… send me the details from where i can get full details

  • naveen

    i am intirior decorater want to know all the possible details of the litracon… if possible please help me out… send me the details from where i can get full details


  • I think Litracon will become a style in next decade..
    And congrats for the award..
    But, im still wondering, is litracon has problem for it maintenance? What it is and how do we should solve the problem?
    what is the influence of the Fiber-optics for the compressive strength? Make it stronger or weaker?
    Thanks for the invention! It really help for a architecture world.
    And afterall im really-really impressed..

  • Jose

    I make my own version of translucent concrete
    I’m an inventor of a microconcrete mix that can be used in combination with fiber optic plastic to produce floor tiles, floor lamps, bricks, folding screens, decorative walls, etc.
    The hard part was to develop the mix. Add the fiber optic is easy
    With this mix it is possible to make translucent concrete in your own table without any special tools or equipment
    I sell de microncrete mix or the tiles, bricks, etc. or develop any special project
    I sell it in 5kg and 20 kg bags
    Any further information in