Reticle for stadiametric rangefinding

Details Reticle for stadiametric rangefinding Reticle for stadiametric rangefinding

2011-02-01

2011-02-01

Bennett, G. Bradley (Department: 2841)

Geometrical instruments

Straight-line light ray type

Reticle

Reexamination Certificate

active

07877886

ABSTRACT:
A reticle for stadiametric rangefinding has a horizontal crosshair and a vertical crosshair that are attached to an optical element. The optical element defines an optical axis and a field of view. The crosshairs intersect perpendicularly at a location that is offset from the optical axis. There may be a plurality of rangefinding indicia shaped to indicate the size of an object at a specific range. The rangefinding indicia may be arranged in a position other than vertical.

REFERENCES:
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patent: 7100319 (2006-09-01), Paige
patent: 2008/0202011 (2008-08-01), Shepherd
patent: 2010/0110378 (2010-05-01), Cheng et al.

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