Laser Photonics creates oven-less annealing method
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Laser Photonics product story
Edited by the Engineeringtalk editorial team
Mar 17, 2009
Laser Photonics, a provider of solid-state and CO2 laser systems for marking, cutting and engraving applications, has developed of a laser-based oven-less process for annealing glass coatings.
Traditionally, to anneal a coating on glass, the coating was applied to the glass, baked at 600C and then cooled for three to four hours.
However, using Laser Photonics's oven-less annealing process, the coating is applied to the glass and then a laser beam is swept over the surface to anneal.
The heat-affected zone (HAZ) is limited and the material can be handled relatively soon after the annealing is complete.
Using this process, the light transmission efficiency is increased by 35 per cent.
Additionally, the process lowers the electrical surface resistance, prevents delamination and performs recrystalisation of amorphous silicon.
Glass that has been coated and annealed is used for such applications as: architectural glass, as seen in large buildings and skyscrapers; windshields; and solar panels.
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