Gun sight compensator
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United States of America Patent
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N/A
Issued Date -
Feb 24, 2005
app pub date -
Aug 8, 2003
filing date -
Aug 8, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A range compensator for a gun sight for an associated gun is provided. The compensator includes at least one Risley prism pair that is rotatable in opposite relative directions about a common axis; mounting means for mounting the Risley prism pair to the sight between the sight and a target at a distance; and, a respective rotator associated with the Risley prism pair for rotating each prism in the Risley prism pair about the axis that is generally aligned with the path. The prisms are rotatable between an unrefracted range finding position in which a 'line of departure' required to ensure the projectile strikes the target is determined and a refracted firing position in which the path of light extending between the sight and the target is refractively deviated to maintain the target centered with the sight when the gun is positioned along the required 'line of departure'.
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