Control element for displacing components of optical systems
AssigneeJos. Schneider Optische Werke GmbH
InventorPaul Himmelsbach
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Abstract
To shift the movable lenses of a verifocal objective, or to adjust the leaves of an iris diaphragm, a flat or cylindrically curved control element is formed with camming grooves coacting with projections on the controlled members. The control element is a deformable foil, e.g. of sheet metal, in which the camming grooves are formed by deep-drawing. The foil rests against a backing element with which it is positively connected by a tongue-and-groove coupling or the like and which entrains the control element upon being rotated about their common axis by an external force.
Claims10
In an optical system comprising a plurality of members centered on an axis which are to be jointly displaced in a coordinated manner, the combination therewith of a common control element for said members comprising a substantially continuous foil of imperforate sheet material with spaced-apart deformations offset from the body of the foil constituting a plurality of camming grooves, said foil being rotatable about said axis, and projections on said members respectively received in said camming grooves, said foil being of substantially constant thickness throughout said body and said deformations.
Dependencies are inferred from the claim text.