Search for: "One Magnifier for Rifle Optics"
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21 May 2013, 5:21 am
The claims were directed to riflescopes which normally have an objective lens at one end, an eyepiece lens at the other end, and in between these one finds a system of internal lenses (labelled as the field lens and movable zoom relay lens elements in the diagram above) which magnify the image and turn it the right way up. [read post]