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Limedion GmbH, Augartenstraße 110, D-68165 Mannheim, Telefon +49 (0) 621 400 40 56
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Light technology

Limedion - LichttechnikIt is our target to develop safe, high efficient and energy saving lamps with light of highest quality.

Our main focus lays on innovative materials for the filaments as well as on bulb coatings..

Limedion is working on three emphases of research: the filament, the bulb surface and the gas composition.

 

A lamp with a filament – a complex systems

Forschungsschwerpunkt Lichttechnik bei LiMedIon: Filament, Gasphase und Glaskolben-Oberfläche.The challenge on working with lamps containing a filament is the need for a perfect balance of the chemical an physical properties of the filament materials with the chemical compounds used in the filling gases. In addition safety and operational restrictions have to be taken into consideration.

Methods for analysis in detail

Light quality and colour temperature are determined in detail with the use of emission spectrometers. Additionally changes in the filament geometry and temperature changes along the filament surface are mapped in detail with infra red cameras. Long time resistance and efficiency changes as well as the lifetime determinations are carried out in multiple parallel measurement units..

After the test runs, the mechanical properties as well as structural changes in the surface are investigated with the laser scanning confocal microscope or for more detailed information in our scanning electron microscopes. Changes of the chemical composition in the surface top layers are observed with photo electron spectroscopy (XPS) and auger electron spectroscopy (AES).

Information about the chemical processes in the gas phase as well as their dynamics during operation can be collected by infra-red spectroscopy. Components generated and condensed at the bulb during operation can be analysed by XPS and AES after the experiment.    

Do you have a research request ?

How can we help you ? Just contact one of our experts by phone, email or use our contact form. We are looking forward to hearing from you.

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Research inquiry  

How can we help you ? Contact us by email, phone or by using our contact form. We are looking forward to hearing from you.

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Feel best cared from the first moment

From the first idea to final series production our researchers attend you with innovations and their know-how. Experimental works for feasibility studies, development of prototypes as well as the complete implementation of the new product into your production lines is our task. We will always support you during the whole process. Our analytical lab gives answers to questions about:

  • the composition of a sample surfaces
  • the surface morphology on nano-scale
  • the properties of coatings and thin films
  • the corrosion resistance, mechanical properties, wettability, etc.
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Your advantage with Limedion

Due to the spacial closeness of coating facilities and analysis, all located at Limedion Laboratories in Mannheim, we achieve ultra fast feed back between our branches. This short loop enables us fasten our research and to shorten the time needed for product developments and product improvements significantly.

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