26 April 2007 The off-axis viewing device: a rifle-mounted sighting system for search and engagement from covered positions
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Abstract
Soldiers involved in urban operations are at a higher risk of receiving a bullet or fragment wound to the head or face compared to other parts of their body. One reason for this vulnerability is the need for the soldier to expose their head when looking and shooting from behind cover. Research conducted by DSTO Australia, using weapon-mounted cameras, has validated the concept of off-axis shooting but has emphasized the requirement for a system that closely integrates with both the soldier and his weapon. A system was required that would not adversely effect the usability, utility or accuracy of the weapon. Several Concept Demonstrators were developed over a two-year period and the result of this development is the Off-Axis Viewing Device (OAVD). The OAVD is an un-powered sighting attachment that integrates with a red dot reflex sight and enables the soldier to scan for and engage targets from a position of cover. The image from the weapon's scope is transmitted through the OAVD's periscopic mirror system to the soldier. Mounted directly behind the sight, the OAVD can also be swiveled to a redundant position on the side of the weapon to allow normal on-axis use of the sight. The OAVD can be rotated back into place behind the sight with one hand, or removed and stored in the soldier's webbing. In May 2004, a rapid acquisition program was initiated to develop the concept to an in-service capability and the OAVD is currently being deployed with the Australian Defence Force.
© (2007) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Thomas Chapman, Christopher Brady, "The off-axis viewing device: a rifle-mounted sighting system for search and engagement from covered positions", Proc. SPIE 6558, Display Technologies and Applications for Defense, Security, and Avionics, 655805 (26 April 2007); doi: 10.1117/12.726331; https://doi.org/10.1117/12.726331
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