Choose another language
Get all new posts – free!
Recent posts

Hammerborgs on film

Since becoming addicted to The Killing and Borgen we've tried out a mixed bag of other Danish TV series, and most recently have been watching [more]

Why Jo Hammerborg's Orient is incomplete without its louvre

So the first Jo Hammerborg light reproduction has finally appeared, and the wisdom of the crowd has made itself apparent in our poll by correctly [more]

Changes ahead in the market for Jo Hammerborg lights

One of the features that has driven the increasing popularity of 60s and 70s Fog & Mørup lighting as a target for collectors – along [more]

Fog & Morup did not produce Carl Thore lights

In recent months we have noticed an apparent increase in the number of eBay sellers repeating the incorrect claim that the multilayered pendant lamps usually [more]

Jo Hammerborg and the Formland lamp series

The information that emerged from our correspondence with the Hammerborg family over the past 18 months (which has informed our new biography of Jo Hammerborg) [more]

Our new website dedicated to Jo Hammerborg

In May 2011 we wrote a post laying out the few facts we had been able to gather together during ten years of trawling through [more]

Solved! the Danish star light designer mystery

A couple of years ago we wrote a post (which you can read here) about the fact that we had been unable to find reliable [more]

Another twist in the Jørn Utzon Søvaernspendel debate

The identity of the designer of the Søvaernspendel, the light produced first by Nordisk Solar Compagni and later by Louis Poulsen, has been the subject [more]

The lights of Louis Weisdorf: Multi-Lite (1974)

The economic downturn of the 1970s brought new challenges for the designers of high-end lamps and other luxury goods, as producers' support for the experiments [more]

Piet Hein’s 1969 Ra lamp for Lyfa

Bengt Rooke’s Tidsfasetter, a collation of historical art and design news items from Scandinavia, includes a 1969 clip entitled Piet and Lux and Lyfa, which reports on the innovation behind Piet Hein’s Ra lamp design for Lyfa (pictured below). Here is our translation:

Piet Hein, the Dane who has achieved world renown as a theorist, inventor and poet, has created a new lamp for Lyfa A/S. Piet Hein calls his lamp the Ra lamp, after the ancient Egyptian sun god. The Ra lamp has been introduced both in Denmark and in the international market, and is based on a new Piet Hein discovery – isoluxfladerne – which basically is a way of providing as much regular light as possible without dazzle. After Grooks and Superelipses and much more, Piet Hein now offers us a bright new light.

We have not translated the Danish term for Piet Hein’s discovery isoluxfladerne, not least because we couldn’t come up with a neat equivalent in English. The word has three components, the first of which – iso – is derived from the Greek word isos, meaning equal. The second component – lux – is the SI unit of illuminance, equal to one lumen per square metre, and more generally means luminescence or simply light. The third component – fladerne – is Danish for surfaces. Piet Hein’s innovation in the Ra lamp is thus, as described in the clip, the illumination of surfaces in an even (and non-dazzling) manner.

Piet Hein Lyfa Ra lamp

Related posts:

Leave a Reply

  • www.johammerborg.com
  • Classic Modern Vintage Design
  • www.vintage-danish-lights.com