US Patent 7934335 Pop-up adjustment cap system for sighting device

Adjustment mechanisms that may be employed for making operational adjustments to sighting mechanisms such as riflescopes, telescopes, binoculars, monoculars or other types of viewing devices. One configuration being directed to a pop-up cap that is retained and remains connected to the adjustment mechanism, the pop-up cap translating between a first position (typically the closed position) where rotation of the cap does not engage the adjustment mechanism to a second (typically the extended position) where rotation of the cap engages the adjustment mechanism.