Night vision goggles
"Night glasses" is not an invention of another science fiction, but a really working tool for observation in extremely low or absent light conditions. This device is successfully used not only by hunters and military, but also nature lovers, tourists, security guards, law enforcement officers, rescuers, staykbolisty and various researchers, whose work is carried out in the dark.
The operating principle of the night vision goggles
There are several types of glasses that use a fundamentally different "filling". These are digital night vision goggles, devices on electronic converters of an optical signal and thermal imaging models. The most commonly used products collected on the TUBE.
If you do not delve into the technical "jungle", the operation of the device is as follows:
1. The lens collects the weakest night light, or the reflected light of infrared illumination, which is often used in so - called infrared night vision goggles;
2. The light rays are focused and directed to the photocathode of the electron-optical Converter, which converts the photon flux into a similar electron flux;
3. Photoelectron multiplier greatly enhances and accelerates the flow of electrons, the number of which is growing avalanche. Microchannel technologies and elements on gallium arsenide are also used, in short, the flow of electrons is enhanced;
4. The electrons fall on the fluorescent anode, which is under high voltage, and knock out of it photons, which completely repeat the original picture, but have repeatedly reinforced;
5. The resulting flow of photons, and, in other words, the light is sent by optics to the eyepieces of the glasses, and the user sees a picture that is inaccessible to the naked eye of an ordinary observer, getting the opportunity of a full night vision of objects or panorama as a whole.
As a result, you get an advantage over an animal or a person who is unable to fully see in low night light.
Digital devices operate on CCD matrices that convert the light collected by the lenses into a digital signal, amplify it and feed it to the LED monitor, which transmits the image to the viewer's eyepieces.
Thermal imaging goggles collect and amplify infrared radiation from any heated bodies. The use of such night vision goggles for hunting, military or rescue operations is particularly effective, as they do not need additional illumination. These glasses see any living objects, as their temperature is much higher than the temperature of the surrounding landscape, which distinguishes such goals from the General panorama.
For glasses, working on strengthening weak of light, is needed modicum some light. That is, in the complete absence of lighting (caves, houses, underground passages, etc.) the device has nothing to strengthen, and it does not work. In these cases, illumination is required, which is implemented using infrared LEDs or lasers.
The disadvantage of thermal imaging devices is their high price, as well as the restriction in use associated with the temperature of the surrounding objects. If the observation is carried out in a heated landscape (background), the target will merge with it and become invisible to the observer.
The main feature of night vision goggles (ONV) is the ability to observe the terrain with free hands. The device is fixed in the working position with a special mask, which is attached to the head or helmet due to the system of puffs and straps that securely hold the device in a convenient position for you.
As a result, you can hold a weapon, a video camera, a camera or drive a vehicle. At any time, the glasses can be folded up and observe the terrain in a natural way.
All this greatly simplifies the process of observation and frees hands, which is very important for a number of tasks. Binocular design (the presence of a separate eyepiece for each eye) with no approximation helps to estimate the distance between objects and their real size, simulating normal vision.
Fact!Night glasses are the most convenient type of night vision devices for long-term observations, as all other types of night vision devices have to be held in hands, which quickly tires. Also points allow you to move freely and navigate in space, because their optics has no increase.
How to choose night vision goggles
The choice of glasses for night surveillance should be taken responsibly, taking into account all aspects of their further use. Depending on what tasks you are going to solve with the help of the device, pay attention to the following parameters: Photo night vision goggles from the eyepiece on the hunt
1. Generation of EOP used. This affects not only the image quality and range of observation, but also the cost of points;
2. Availability of additional features. Ask the seller how to make night vision goggles able to bring the picture closer, highlight the panorama, put on a helmet, etc.;
3. Manufacturer. It is represented in the widest range of both domestic and foreign firms. It is important to enlist technical support, service and warranty service, availability and accessibility of all necessary parts and devices to expand the capabilities of the device;
4. Technical parameters. Carefully study all the parameters of the product. Make sure that the selected model best meets your requirements and is able to solve all the tasks that you set for it. Find the night vision goggles you are interested in on the Internet: videos and reviews will help you understand all the pros and cons of a particular device;
5. Price. Correlate the cost of the device and the benefits it will bring. Consider the tasks that you are going to solve with the help of certain ONV. Do not buy too expensive models for entertainment or cheap – for serious work.
Advice!Before buying a particular device, type in the search engine of your browser the phrase "night vision goggles photo from the eyepiece", add the name of the model and make sure the quality of the image that you have to watch. Choose sites that are not related to the manufacturer or its competitors.
Night vision goggles for hunting
Hunting is one of the types of activities in which frequently used HE B. They help to track down game in the forest at night is most effective, because your hands are always ready to throw up the gun, aim and make a shot. The important thing is that you can flip the eyepieces of the glasses and apply the night vision sight, so you get full vision support for finding and hitting the target.
There will be especially good glasses Pulsar Edge GS 1x20 with a mask. They differ convenient for shooting observation distance of 150 meters. EOP CF-Super will give a clear picture, and a single increase and a low weight of 650 grams will allow you to move without unnecessary load on your head and navigate well in the selected area.
Night vision goggles for drivers
Driving a car in a dark night, when the lights for one reason or another can not be used, as well as driving on unfamiliar rough terrain is now possible thanks to the ONV. Your hands are free to drive the vehicle, and your eyes can see all the potentially dangerous areas, obstacles and other interference that may prevent you from driving or damage your car.
For this task is well suited goggles PN 14K of Novosibirsk instrument-making plant (NPZ). At a relatively low price, the device has everything you need to drive at night: good protection from the glare of oncoming headlights, powerful IR lights, durable rubber body and EOP 2+ or 3-generation, giving a great picture at a distance that allows you to drive a car.
Night vision goggles with your hands
The network is replete with articles and video instructions for the manufacture of various night vision goggles. These experiences deserve attention and respect.
Those who want to better understand the topic, you should definitely watch the videos and even try to repeat the work shown in them. Then you should go to our store and ask to see the factory PNV. You will immediately feel the difference between an Amateur and a professional device.
Probably, there are homegrown masters who are able to collect more or less worthy PNV in his workshop. To use such a device for hunting or more serious tasks, at least, strange.
Fact!Factory devices are developed by serious designers, engineers, experts in the most different areas. The production cycle does not even make sense to describe, because it is clear to anyone that it is fundamentally different from the work of "garage Kulibin"
Conclusion to Night Vision Goggles
It is the most convenient night vision device for long-term observations and situations when it is important to free your hands. Night glasses are suitable for hunters, military, police, rescuers, researchers of night nature, speleologists, tourists and climbers.
There are many types and types of glasses, so before making a purchase is better to consult with a specialist company Optics Trade, which will provide all the information you need and give a lot of valuable advice. We wish you successful hunting, fruitful scientific research and implementation of all your most incredible plans using night vision goggles.