Did you know ? "The PVS-21 is a Low Profile Night Vision Goggle that utilizes sensor fusion technology to move the image intensifier tubes out of line with the optics creating two very unique benefits.
The first advantage is the flat, and compressed design that allows the access to weapon optics as well as movement in and around confined spaces - making the PV-21 an optimal NV rig for CQB or additional activities.
The second benefit ties into the unit’s patented see-through optics. The PVS-21 uses a patented “folded optics” system that projects the night vision image into a pair of see-through optics. This means that the operator can literally see through the lenses regardless of whether or not the unit is engaged.
See through optics add a whole new level of versatility.
No longer does the tube control the brightness of the image. If an operator is exposed to too much ambient light, the image simply fades out and the actual scene is viewed straight through the lenses (For those who been down range, you might know how useful is that when opening a door and a flashing neon light is slapping your face...)The image appears as it normally would through a set of clear goggles because the operator is not viewing through an image intensifier. This ability greatly increases the operator’s situational awareness and makes him more combat effective because threats can be more easily engaged regardless of the lighting conditions.
Another very interesting feature of the AN/PVS-21 is the Sensor Fusion Overlay HUD system - which allows the end user to receive an overlay real-time overlay of mission critical information onto the night vision image (which is normally appearing through the little transparent lenses). This system interfaces with everything from thermal weapon sights to PCs and FLIRs." #tactical #nvg #night #optic #projectgecko #pvs21 #learn #military