A variable range compensating device, including at least some of a housing having an optical cavity defined at least partially within the housing, wherein the optical cavity extends from an incoming image aperture to an outgoing image aperture; and two or more reflective optical elements, wherein each reflective optical element is adjustably positioned within at least a portion of the optical cavity, and wherein adjustment of at least one of the reflective optical elements adjusts the reflective optical elements such that a target image entering the incoming image aperture is reflected by the reflective optical elements, so as to exit the outgoing image aperture at a determined offset.

A method of evaluating camouflage for a specified area of responsibility, the method includes calculating an apparent spectrum of the camouflage at far field with respect to an observer; calculating an apparent spectrum of the specified area of responsibility at far field with respect to the observer; calculating a difference between the apparent spectrum of the camouflage with the apparent spectrum of the area of responsibility; and comparing the difference to a predetermined threshold, thereby determining suitability of the camouflage for the specified area of responsibility.

Implementations described and claimed herein provide a shield system that includes a shield, an edge protection system, and an edge coupling. The edge protection system may comprise a plurality of corner protectors disposed on a length of an edge protector. The edge protection system may be installable along a peripheral edge of the shield such that the edge protection system surrounds the outer perimeter of the shield. The edge coupling may be configured to engage the edge protection system and retain the edge protection system on the shield.

A method of evaluating camouflage for a specified area of responsibility, the method includes calculating an apparent spectrum of the camouflage at far field with respect to an observer; calculating an apparent spectrum of the specified area of responsibility at far field with respect to the observer; calculating a difference between the apparent spectrum of the camouflage with the apparent spectrum of the area of responsibility; and comparing the difference to a predetermined threshold, thereby determining suitability of the camouflage for the specified area of responsibility.

A variable range compensating device, including at least some of a housing having an optical cavity defined at least partially within the housing, wherein the optical cavity extends from an incoming image aperture to an outgoing image aperture; and two or more reflective optical elements, wherein each reflective optical element is adjustably positioned within at least a portion of the optical cavity, and wherein adjustment of at least one of the reflective optical elements adjusts the reflective optical elements such that a target image entering the incoming image aperture is reflected by the reflective optical elements, so as to exit the outgoing image aperture at a determined offset.

The present invention relates to a telescopic sight for a firearm for firing in a downward arc comprising: —a first movable mirror defining a first optical axis, the angle of said first movable mirror being adjustable so as to transmit, during use, the image of a target at an angle of 90°−α with respect to the axis of the barrel of the firearm, α being the desired angle of elevation for a given shot; —an objective lens, on the first optical axis; —a second mirror at 45° with respect to the first optical axis, defining a second optical axis that is parallel to the axis of the barrel of the firearm; —an ocular lens on the optical pathway defined by the mirrors projecting the image of the target to infinity.

The present invention relates to a telescopic sight for a firearm for firing in a downward arc comprising: a first movable mirror defining a first optical axis, the angle of said first movable mirror being adjustable so as to transmit, during use, the image of a target at an angle of 90- with respect to the axis of the barrel of the firearm, a being the desired angle of elevation for a given shot; an objective lens, on the first optical axis; a second mirror at 45 with respect to the first optical axis, defining a second optical axis that is parallel to the axis of the barrel of the firearm; an ocular lens on the optical pathway defined by the mirrors projecting the image of the target to infinity.

An optical sight with a rectifier and device for indicating turns of the rectifier includes a longitudinal body that houses sight elements coupled to the rectifier. The rectifier includes a rotatable control element and an indicator protruding from an upper surface of the rectifier. The indicator includes a longitudinal identification protrusion rotatable about an axis that is perpendicular to its length and parallel to an axis of rotation of the control element. A coding device is associated with the longitudinal identification protrusion and is mounted on the upper surface of the rectifier above an upper surface of the longitudinal identification protrusion, wherein a rotated position of the longitudinal identification protrusion relative to the coding device provides an indication to a user of the optical sight of turning of the rectifier. A zero stop mechanism is configured with the control element of the rectifier.

An optical sight with a rectifier and device for indicating turns of the rectifier includes a longitudinal body that houses sight elements coupled to the rectifier. The rectifier includes a rotatable control element and an indicator protruding from an upper surface of the rectifier. The indicator includes a longitudinal identification protrusion rotatable about an axis that is perpendicular to its length and parallel to an axis of rotation of the control element. A coding device is associated with the longitudinal identification protrusion and is mounted on the upper surface of the rectifier above an upper surface of the longitudinal identification protrusion, wherein a rotated position of the longitudinal identification protrusion relative to the coding device provides an indication to a user of the optical sight of turning of the rectifier. A zero stop mechanism is configured with the control element of the rectifier.

An optical aiming device including a first multi-faceted optical element lying on an axis and a second multi-faceted optical element juxtaposed to the first multi-faceted optical element and angled with respect thereto, the first and second optical elements each being characterized by a refractive index and a critical angle defining at least one total internal reflection plane formed by at least one facet of each one of the first and second optical elements, the at least one facet having an optical interference coating formed thereon, each one of the first and second optical elements causing light impinging on the at least one total internal reflection plane at an angle greater than or equal to the critical angle to be totally reflected and light impinging on the at least one total internal reflection plane at an angle less than the critical angle to be partially reflected and partially refracted, the totally reflected light illuminating a first region, the partially reflected light partially illuminating a second region, a demarcation being defined between the first and second regions, the first and second optical elements being oriented such that the demarcations of the first and second optical elements intersect at a point lying substantially along the axis.