The Geissler tube is the predecessor to the modern neon discharge lighting, first invented by the German physicist and glassblower, Heinrich Geissler in 1857.

The Geissler tube would go on to influence many other modern discharge tubes. Read further about the history of the Geissler tube.

One of the most fascinating aspects of the Geissler Tube are the complex shapes and designs that they may be made into. Original tubes are now rare to find in working condition, and of those, in the hands of collectors.

Around 8 years ago, I had come across an Ebay seller, tyroneneumann, (Lutz Neumann) whom had various tubes for sale.

Lutz Neumann is a German Glassblower based in Cursdorf, Germany whom commercially hand manufactures scientific apparatus and Geissler Tubes. I had the privilege of meeting Lutz in 2013 while I was in Heidelberg, Germany for work.

This image are of my tubes as they are being made and prior to adding the end caps, the Geissler tubes in my collection are made by Lutz Neumann.

These series of images of three Geissler tubes in my overall collection. The Yellow Spiral image is also an award-winning image in the Science Category.

My collection also include liquid filled tubes.

The green glow is created with the use of Uranium glass which will glow green under UV light and also high-voltage.

In my collection of plasma displays, I have the privilege of owning a number of the original LuminGlas sculptures by Wayne Strattman, whom pioneered and patented LuminGlas.

I also have in my collected the more rare and larger 20" LuminGlas display that I had envisaged to incorporate into a coffee table.

- Flavio Spedalieri -
Written: 13 November 2020
Updated: 1st August 2021

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