Generation 3 is the most sophisticated night vision technology available. The photocathode is coated with sensitive gallium arsenide, which allows for a more efficient conversion of light to electrical energy at extremely low levels of light.
When you need a clearer, sharper image than the standard Generation 3 viewer provides at night. The ultra units have a higher-performing image intensifier tube with a minimum 51 lp/mm resolution, compared to the 45 lp/mm minimum of a standard Generation 3 unit. Line Pairs per Millimeter (lp/mm) are units used to measure image intensifier resolution; the higher they are the clearer the image gets. Check our product pages to see if the night vision viewer that fits your needs is offered in an ultra version.
Generation 2 was the leading night vision technology before the innovations of Generation 3. Generation 2 marked the development of a microchannel plate, which multiplies the number of electrons by the thousands. This produces a clear image in nighttime situations without the distortion of Gen 0 and Gen 1.
Generation 1 has problems with distortion and short-lived intensifier tubes. It uses materials that are better than Gen 0 to convert light to electrons. These units were able to operate at lower light levels than the Gen 0 and became known as "starlight scopes." Imported night vision viewers usually use Gen 1 image intensifiers even though they may be advertised as Gen 2.
Generation 0 technology depended on external light to increase available light energy. After the light was converted to electrons, electrical components focused these electrons through a cone-shaped device (anode) and accelerated them so they hit the phosphor screen with greater energy, creating the visible image. Unfortunately, accelerating the electrons in this manner caused distortion in the image and decreased the tube''s life.
All Generation 3 products sold internationally require an export license from the US Department of State, Office of Defense Trade Controls, in accordance with International Traffic in Arms (ITAR), Title 22, Code of Federal Regulation. Most Generation 2 products are controlled by the US Department of Commerce, Bureau of Export Administration, Commodity List Number 6A002.
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