Stereoscopic optical viewing system

G - Physics – 02 – B

Patent

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G02B 21/22 (2006.01) B23K 15/00 (2006.01) B23K 26/02 (2006.01) B23K 26/03 (2006.01) G02B 27/22 (2006.01) G02B 27/24 (2006.01) H01J 37/30 (2006.01)

Patent

CA 1280630

STEREOSCOPIC OPTICAL VIEWING SYSTEM ABSTRACT OF THE DISCLOSURE An improved optical system which provides the operator a stereoscopic viewing field and depth of vision, particularly suitable for use in various machines such as electron or laser beam welding and drilling machines. The system features two separate but independently controlled optical viewing assemblies from the eyepiece to a spot directly above the working surface. Each optical assembly comprises a combination of eye pieces, turning prisms, telephoto lenses for providing magnification, achromatic imaging relay lenses and final stage pentagonal turning prisms. Adjustment for variations in distance from the turning prisms to the workpiece, necessitated by varying part sizes and configurations and by the operator's visual accuity, is provided separately for each optical assembly by means of separate manual controls at the operator console or within easy reach of the operator.

535270

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