FIELD: optical instrument engineering.
SUBSTANCE: before conversing parallel laser radiation beam of continuous cross-section to circular-section beam, the central round-shaped part is cut out of parallel laser radiation beam for subsequent delivery to specified circular-section beam convergence point. Device has entrance and exit axions that are optically conjugated. One reflecting conic surface of axion is mounted onto ends of hollow rod connected with other reflecting conic surface of axions through pylons. Cavity of rod is divided by partition provided with nozzles for supplying coolant into mentioned compartments. Reflecting surfaces of axions and partition of rod are made with through axial holes. Diameter of axial hole of reflecting conic surface of axions is commensurable with diameter of spot of focused laser radiation. Laser radiation beams can be focused with higher power of density.
EFFECT: increased power density.
4 cl, 1 dwg
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Authors
Dates
2006-06-20—Published
2004-09-15—Filed