FIELD: laser machining of materials. SUBSTANCE: laser radiation is focussed with set of lenses with decentralized pupils on to mask-template placed in focal plane of set of lenses. Mask-template diaphragms peripheral radiation over external and internal outlines of pattern. Projection lens projects laser radiation on to surface of machined part through holes in mask-template with high resolving power and improved quality of machining. EFFECT: enhanced quality of machining. 1 dwg
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Authors
Dates
1995-01-20—Published
1988-01-14—Filed