Night vision goggles are precision optoelectronic instruments used to observe targets at night and in low light conditions. To work in extremely low light conditions, the night vision device is equipped with an infrared emitter. Night vision goggles are prohibited from being turned on during the day without a protective cover. When checking the performance of a night vision device in a well lit room, it must be done with the device covered and not exceed 3 minutes. And night vision devices should not be directed towards strong light sources. Strong light entering the interior of the night vision device may damage it or reduce its service life
