Apparatus and method for producing an improved laser beam

Optical: systems and elements – Lens – Anamorphic

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359671, 359719, 2191216, 21912161, G02B 1308, G02B 302, B23K 2600

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060162279

ABSTRACT:
This invention relates to an improved laser beam useful in material surface processing and an apparatus for producing the improved laser beam. The improved laser beam of the present invention comprises a power distribution that is more intense at the outer regions than in the central region. The invention includes an apparatus comprising a power spherical and cylindrical optical elements aligned to focus and/or shape a laser beam into a novel profile useful in material surface processing. The invention further includes a method of using this apparatus to focus and/or shape a laser beam for producing Laser Induced Surface Improvements, hereinafter referred to as "LISI".

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