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Variable optical power telescopic sight with side focus control

  • US 6,005,711 A
  • Filed: 01/21/1998
  • Issued: 12/21/1999
  • Est. Priority Date: 01/21/1998
  • Status: Expired due to Term
First Claim
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1. A telescopic sight with variable optical power and an adjustable focus, the telescopic sight including a tubular housing having a longitudinal axis, an interior and exterior, and first and second ends, the housing holding an eyepiece positioned at the second end and an erector positioned in the interior of the housing medially of the first end and the eyepiece, comprising:

  • a movable mounting member for mounting the erector;

    a manually adjustable magnification control device having a range of adjustment and operatively connected to the mounting member to move the erector generally along the longitudinal axis and thereby vary the optical power of the telescopic sight;

    a pivot mount positioned within the interior of and operatively connected to the housing for pivotal movement within the housing about a pivot point, the pivot mount operatively connected to the erector for pivotal movement of the erector about the pivot point;

    a manually adjustable windage control device projecting outwardly from the exterior of the housing in a direction transverse to the longitudinal axis and positioned opposite a manually adjustable focus control device, the windage control device in operative association with the pivot mount for movement of the erector transversely of the longitudinal axis;

    a manually adjustable holdover control device projecting outwardly from the exterior of the housing in a direction transverse to the longitudinal axis and transverse to the windage control device, the holdover control device in operative association with the pivot mount for movement of the erector transversely of the longitudinal axis and transversely of the movement imparted to the erector by the windage control device;

    an objective lens system including a stationary portion positioned in the interior of the housing near the first end and a movable portion positioned in the interior of the housing between the stationary portion and the erector, the movable portion operatively connected to the pivot mount so that adjustment of the windage and holdover control devices imparts pivotal movement to the movable portion transversely of the longitudinal axis; and

    the manually adjustable focus control device projecting outwardly from the exterior of the housing in a direction transverse to the longitudinal axis, the focus control device operatively connected to the movable portion of the objective lens system to move the movable portion generally along the longitudinal axis and thereby adjust the focus of the telescopic sight.

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