Light pattern projector especially for welding

Details Light pattern projector especially for welding Light pattern projector especially for welding

B - Operations, Transporting

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K

88/46, 327/54

B23K 9/12 (2006.01) B23K 9/095 (2006.01) B23K 9/127 (2006.01) B23Q 35/128 (2006.01)

Patent

CA 1206210

LIGHT PATTERN PROJECTOR ESPECIALLY FOR WELDING Abstract of the Disclosure Structured light patterns are introduced into the arc vicinity within the field of view of the integral optical sensor on a gas tungsten arc welding torch. Processing the image yields data needed to guide the torch and control and assess the weld process. The optical welding torch has a projector system with a remote light source and flexible fiber optic bundle over which the light pattern passes to an exit projection and relay assembly mounted on the torch. A programmable laser pattern projector, useful for other applications, has a beam deflection device that traces a two-dimensional pattern on the entrance of a coherent fiber optic bundle; no moving parts or electrical connections are needed at the terminal end. An optional modulator changes the pattern intensity spatially or temporally.

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