What Are Night Vision Glasses?

Night vision goggles are auxiliary observation tools based on night vision technology with the help of photoelectric imagers. There are three types of night vision goggles, one is low-light night vision goggles, one is infrared night vision goggles, and car driving night vision goggles.

Low-light night vision devices are being widely equipped for troops abroad. It is divided into two types, such as enhanced low-light night vision technology (direct observation) and low-light television (indirect observation).

Low-light night-vision goggles amplify the faint light so that they show a clear picture in the line of sight. Therefore, in the absence of light at all, low-light night-vision goggles cannot see anything.

There are two types of infrared night vision goggles, one is active and the other is passive. The active type is a night vision goggle that emits a beam of infrared light and reflects it back on the object, which is equivalent to a flashlight; Amplify the infrared light emitted by the object itself into visible light. Therefore, if there is no infrared source (most things that can generate heat can become infrared sources, such as living things, vehicles,

Infrared night vision technology has experienced early active infrared night vision imaging technology and now passive infrared (thermal imaging) technology. Infrared detectors were first used as unit detectors. Later, in order to improve sensitivity and resolution, they were developed into multivariate line array detectors. Now they have developed into multivariate area array infrared detectors. The corresponding system has achieved a leap from point detection to target thermal imaging.

Night Vision Infrared Image

This technology uses the principle of photoelectric image conversion to achieve night observation. This kind of instrument includes infrared light source and night vision goggles with image tube. The infrared light source illuminates the target, and the night vision goggles convert the invisible infrared image into a visible image. This kind of technology began to be researched at the end of the 30th generation, and was developed and applied in the Second World War. Rifle scopes with active infrared night vision are widely used on the Pacific battlefield. Around the sixties, the technology became mature, with an observation distance of up to 3,000 meters. It was widely equipped with troops later, but because of its low sensitivity, large heat emission, large power consumption, large size, heavy weight, limited observation distance, and easy exposure The Achilles heel of this technology has gradually been replaced by the night vision technology developed in the future. Only a few countries now have a small amount of equipment.

Night Vision Passive Infrared

Infrared camera is one of the most promising infrared detectors, representing the development direction of night vision equipment. It uses an internal photoelectric effect semiconductor device as a detector to convert the radiation image of the scene into a charge image. After information processing, it converts the display device into a visible image. Some typical models include:

ANS / PAS-13 \ "Thermal Weapon Sight (TWS) \" developed by the United States Raytheon Systems for the US Army is the most advanced passive infrared night vision device to date. This is a second-generation forward-looking infrared Technical thermal imaging sighting system. The technology used in this system includes: high-sensitivity cadmium telluride focal plane technology for small telescope long-range target acquisition; lightweight, high-transmittance binary optical components with advanced plastic as the shell; small size, low extinguishing W large-scale integrated circuit (VLSI) electronic components; silent operation, high reliability, thumb-sized thermoelectric cooler; low B high-brightness light-emitting diode (LED) display; suitable for

Night Vision Night Fighting Time

Night and bad weather account for a large proportion of the year. Night vision equipment makes nighttime transparent, which greatly extends the effective combat time. Infrared night vision equipment has high resolution and has the advantage of detecting sea-flying targets. Shipborne tracking infrared cameras can be used to provide target data for launching missiles as well as to detect enemy sea-sweeping missiles. Equipped with a photoelectric fire control system including thermal imaging equipment, it is easy to identify targets and shorten the response time of weapon systems.

Night vision goggles military status

Developed countries in the West, along with a large number of night vision equipment, have adopted dominating night operations as a winning strategy.

Night vision goggles weapon effectiveness

The combination of night vision technology and weapons and equipment will greatly improve the effectiveness of weaponry and equipment in obtaining information, implementing strikes, commanding troops, mobile forces and coordinated operations at night and in adverse weather.

Night vision goggles reduce accidents

By using navigation silos with forward-looking infrared cameras on the aircraft and wearing pilots with night-vision goggles, aviation accidents can be greatly reduced.