2012年1月20日星期五

Night Vision Goggles are the types of glasses that can be worn during the dark or at night

Eyekepper Night Vision Goggles
Night Vision Goggles are the types of glasses that can be worn during the dark or at night. You are in a way that allows them to see things at night over the amount of light from the darkness designed. Many people have asked how to work these night vision goggles or what is the principle behind their operation and how much they cost and where to find one for yourself. These and many other concepts will be described in this article. Many films have used the representation of these principles. In addition, some documentaries of animals in the night captured a part of this principle that the use of night vision goggles interview shows. The night vision device name shows the work of glasses, in other words, the glasses are used to help you see things at night.
Such as night vision goggles work?
The question "How do night vision goggles work?" Answered after we too have an understanding of light energy. The inverse energy stored in a light wave compared to the wavelength of light. More of the wavelength, the higher its energy. An example is in the visible light spectrum, from violet to shorter wavelength is larger than the energy of light as red, which contain most of the long-wave and therefore the lowest amount of energy. Infrared spectrum, which is next to the light spectrum has a wavelength in the range of 0.7 to 1.3 microns while the length reaches mid-infrared wavelengths of 1.3 to 3 microns and thermal infrared range of 3-30 microns. Of these, the thermal infrared, in contrast to others that reflected light is a little light. This difference is the result of the excitement of the electronics on the atomic scale. The thermal imaging method in the principle of the glasses used night vision equipment uses infrared heat to the process. All night vision tool can include a camera, binoculars, sunglasses and night vision devices. The night vision devices use two types of methods to ensure its operation. These are thermal imaging and image processing to reduce the glare night. To help us understand how night vision devices work, we have a deep understanding of these two techniques that are used to have to facilitate the operation of night vision devices.
Thermal imaging cameras
Almost all the objects around the discharge of certain amounts found certain thermal infrared. The energy is discharged through a pair of special lenses that are mounted to focus the thermal infrared. The light is concentrated was then scanned by an instrument called a component infrared detector, which developed a series of light called the thermogram. The time taken in the process of development of the thermogram is about 1/30th of a second. Thermogram is then developed into electrical impulses, which has lead to a signal processing circuit with a chip that converts the electrical impulses into visual feature data changes. After all that, the signal processing unit transmits the data to the display in order of image formation. The strength of the discharge infrared determined to make the quality of the image.
Image Enhancement
This is the second technique, used in the principle of night vision devices. In this method, infrared rays are captured through the lens of the convection. After all concentrated along the light, then it is taken as an image intensifier tube. The power that is used by the image intensifier tube, comes from the N-2-2AA batteries and cells. About 5000 volts needed to be used by the image intensifier tube. The tube consists of a photocathode, which moved responsible for the conversion of protons, electrons. The electrons are then run through the tube and they emit more electrons (the electrons are released from the microchannels into the tube).
What are the micro-channels, and how they work in night vision goggles?
Microchannels in the image intensifier tube. They are very small in nature and have many small holes that can hardly be seen with the naked eye. His main work is more electrons are the largest number possible. The microchannels are using fiber optic technology. When a moving electron collides with the electrodes of the micro-channels, micro-channel electrode broke the tension, the movement of electrons causes rapid increase in movement. At the end of the imaging intensifier tube, the electrons hit a phosphor coated screen. The coalition offers to develop an image of the object because the electrons are in an arrangement such as the arrangement of the original photons. The detection of phosphorus, a green image when viewed through a glass-night viewing.
First They are used in military and legal reinforcement of the team as the FBI, etc. Political
Second They are also used by hunters to protect animals in the night, especially when chasing the animals sleep.
Third Some tourists are using night vision goggles to see the animals at night in the game parks.
4th in the course of the investigation
5th Also used in navigation, particularly of the pilot and the captain of the night.
6th They are trained for safety by welding or private agents, used to track criminals
7th In addition, some of the entertainment are mainly used to view the night sky.
8th If you want to fish at night, night vision goggles are the best compared to the torch, lamps or other light sources.
9th Children who play hide and seek in the night want to night vision devices that are much better than a flashlight.
But these and many other functions are not the most important functions for which the tool was developed. The night vision devices were originally created by the military, a man appears to be in darkness, to assist them during the war. But in recent years, many people came up with many ideas on how to use night vision equipment for other uses beyond their primary use. You can create your own night vision equipment, but it will not develop the quality as that of the manufacturers.

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