Night vision device can be both optical and digital device. There are quite a few varieties of the device, depending on the purpose, they serve for observation or accurate shooting at night.
General information
Before choosing a night vision device, you should pay attention to indicators such as size, range and viewing angle, as well as the ability to focus on a specific target.
Such devices can be not only built-in, but also removable, serving for additional lighting at night. Depending on the amount of light entering the lens, choose its diameter.
Its maximum value is 60mm. Another important characteristic is the viewing angle, where the largest indicator is x1. The clarity of the observed image depends on the generation of the device. Howthe newer it is, the higher the light gain.
Night vision devices: description, principle of operation
Today, this equipment is quite popular. Many people are wondering how to choose a night vision device. First you need to decide on the type of this device.
- Monoculars. This device is the most popular not only among amateurs, but also among professionals. Outwardly, it looks like a spotting scope that has a lens. Thanks to the eyepiece, you can observe various objects at a great distance. The simplest and cheapest are first-class monoculars. They are able to see an object at a distance of 300 meters. The next class belongs to the professional type, which has a detection range of 600 meters. The latest generation of monoculars are equipped with a special rangefinder eyepiece and also have a large viewing angle.
- Night vision goggles. This device is a pair of binoculars built into a special mask. She puts on her head. The main advantage is that the hands remain completely free. Therefore, glasses are used by drivers, rescuers, climbers, etc. As a rule, an adjustable illuminator is built into the glasses, thanks to which the viewing range is 600 m. Their main feature is the absence of magnification. Thus, at a certain distance, you can see the clear outlines of objects.
- Binoculars. They are no less popular than the previous types, and are also available in two versions. Such a versatile device is able to solvemany surveillance tasks at night. This is an excellent night vision device for hunting. It is used when performing search operations, as well as for monitoring a certain territory. Compared to previous types, binoculars have a huge magnification, so the range is much higher. Their technical characteristics depend on the generation. There are also binoculars with a built-in video camera capable of recording all the movements that occur.
- Sights. This is a special class of night vision devices, which is used not only for observation, but also for accurate shooting. They are installed on different types of weapons. If a person has sufficient experience, then the shots will be accurate. Like all models, scopes are divided by generation. Representatives of the first generation are able to recognize a target at a distance of more than 150 m. If you look at more modern sights, they are able to see clear contours at a distance of 900 m and above. They are produced in two types. A digital night vision device differs from an optical one in its design.
Design
Before you choose a night vision device, you need to understand its design. It does not affect the viewing distance in any way, but makes the process more comfortable. If you change the structural elements of devices, then objects may have low clarity.
Only part of the image intensifier will be visible in the lens, and its replacement is quite expensive. For scopes, it is important to have enough distance from the device to the eye so thatdo not get injured when shooting.
Most domestic manufacturers produce high-quality devices with glass optics, but such a device has a high price. There are also cheap devices with plastic parts, but the quality will be much worse.
What is an infrared illuminator?
This device is used to illuminate a certain area or object, so that it is more convenient to observe it. They must be installed in the case when there is not enough natural light. They may consist of a laser, LEDs or other lamps. The laser has a negative effect on human vision. Therefore, laser illuminators are often banned. Safer are LEDs and lamps, typically 12mW.
The most powerful illuminator is produced on the domestic market - 75mW. Thanks to him, the inspection range has increased several times. If this device is not built into the night vision device, then it can be purchased separately. Basically, the reviews of those who use such an infrared illuminator are only positive.
Key Features
Among night vision devices, there is the following pattern. The smaller the size, the greater the viewing distance. Particular attention must be paid to sights. First of all, their design must withstand the loads that occur during firing.
At the same timethe sight should not stray from its original position. In addition, the target must be clearly visible under all operating conditions. Most riflescopes on the market do not meet the requirements for impact performance. They can be installed on certain weapons upon obtaining a license.
Purchasing Tips
To choose the right night vision device, you must adhere to the following rules:
- if the device will not be used in professional activities, then there is no need to select a device with improved technical characteristics, since the cost depends on it;
- for the image to be of high quality, you should choose a device with a hole of at least 1.5;
- when buying a device, you should pay attention to manufacturers, make a deal where a warranty card is issued;
- before purchasing it is better to test the device to understand whether it suits you or not;
- before buying, you need to check its performance.
Night vision device: price
The cost depends on the technical characteristics, as well as on the type of device. So, the pricing policy of these devices is within the following limits:
- monoculars from 1,000 to 40,000 rubles;
- night vision goggles from 1000 to 180 thousand rubles;
- binoculars from 20,000 to 50,000 rubles;
- scopes from 30,000 to 600 thousand rubles.
Conclusion
Many people who use night vision goggles leave good reviews.
Each of the types is designed to improve the quality of observation in the dark. Before buying, you must clearly know for what purposes the device will be used. If for amateur observation, then a night vision device is suitable, the price of which is lower. For professional activities, it is worth purchasing devices with improved technical characteristics.
