Bridge
The term bridge refers to a mounting assembly that allows for binocular use of either two independent monoculars or two pods, meaning housings with optics and tubes that connect to a shared power source within either the bridge itself or through the mount such as the ANVIS Ball-detent mounts.
In the parallell use of monocular units there are those that allow for either unit to be released from the bridge as needed by a so called quick-detach system.
Other bridges have different features such as, to name one, the Panobridge that allows the user to adjust the angle at which the two units sit from parallel to a wider setting as described here. Some of these dual-unit bridges are (or can be) adapted to facilitate the use of a thermal vision unit alongside a monocular night vision goggle.
In the case of pods for the bridge is considered to be integral to the unit itself and either connects to the power supply unit (PSU) by cable or contacts (ref. the aforementioned ANVIS Ball-detent) or houses the PSU as in the case of AN/PVS-31, DTNVS, RNVG and similar units that have on-board battery function (wether exclusively or not).
