AN/PVS-14 Night Vision Device

AN/PVS-14 Monocular Night Vision Device (MNVD) is a light-weight, third generation night vision device that gives the soldier the operational advantage to “see at night.” NVDs (known also as Night Vision Goggles) are electro-optical devices that intensify (or amplify) existing light instead of relying on a light source of their own.
The devices are sensitive to a broad spectrum of light, from visible through infrared. An accessory illuminator can increase the light available at the infrared end of the spectrum by casting a beam of light that is not visible to the human eye. When a soldier looks "through" a NVD, an amplified electronic image is seen on a phosphor screen, giving the soldier the ability to operate with little or no illumination from the moon, stars, or other ambient light sources.
The PVS-14 system can be used with the head mount, as shown, or with a Kevlar helmet mount.
Field of View (degrees): 40 degreesMin Focus Range: 40 cmWeight (unit): 420 gramsInfrared light emitting diodeAutomatic brightness protectionVariable gain control knobLow battery indicatorPower Source: 2) AA batteries (Alkaline)Operating temperature: -51 C to + 49 CStorage temperature: -51 C to + 85 CImmersion: 1 meter for 30 minutes