Prototype of an energy enhancer for mask based laser materials processing

Jens Bastue, Flemmming Ove Olsen

    Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

    Abstract

    In general mask based laser material processing (MBLMP) is a process which suffers from a low energy efficiency, because the majority of the laser light is absorbed in or reflected by the mask. We have developed a device called an energy enhancer which is capable of improving the energy efficiency by a factor of 2 - 4 for a typical TEA-CO2 system for mask based laser marking. A simple ray-tracing model has been built in order to design and optimise the energy enhancer. Thus we present experimental results as well as simulations and show fine accordance between the two. Important system parameters like component reflectivity and alignment sensitivity are investigated in order to evaluate the possibility of making commercial use of the device. The obtainable image quality and how this is influenced by the focusing and imaging system is discussed in some detail.
    Original languageEnglish
    Title of host publicationProceedings Europto
    Place of PublicationMunich
    Publication date1997
    Pages400-411
    Publication statusPublished - 1997
    EventEUROPTO, European Symposium on Lasers and Optics in Manufacturing III - Munich
    Duration: 1 Jan 1997 → …

    Conference

    ConferenceEUROPTO, European Symposium on Lasers and Optics in Manufacturing III
    CityMunich
    Period01/01/1997 → …

    Cite this