GEAR FOR SIMULTANEOUS DOUBLE-BEAM LASER WELDING Russian patent published in 2001 - IPC

FIELD: metallurgy, electronics, instrumentation and mechanical engineering. SUBSTANCE: separating lenses are manufactured in the form of segment circles whose end faces are matched. Distance between end face of segment circle and its optical axis is chosen equal to half-distance between welded joints. Shutter coming in the form of semicircle is mounted in optical channel in symmetry plane of objective lens coinciding with plane of end faces of segment lenses for turning through angle of 90 degrees to both sides from symmetry plane of objective lens. Welding of joints of parts with precision of ≅ 0.05 mm is secured. EFFECT: simplified design of gear with provision of required precision in matching of optical axes of both beams, cross-hairs of eye-piece and both joints of parts to be welded. 2 dwg