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Authorized Distributor for Night Optics USA, Inc
The Most Complete Site Dedicated to Night Optics

For all your Night Vision needs

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Resolution

The ability of an image intensifier or night vision system to distinguish between objects close together. Image intensifier resolution is measured in line pairs per millimeter (lp/mm). While high quality Gen 3 Image Intensifiers can achieve tube resolution in the 64 to 72 lp/mm range, overall system performance can be dramatically degraded by use of poor quality optics. Night Optics USA integrates the highest quality optics in its products to insure optimum performance.

IR Illumination

Regardless of generation all image intensifiers require some light to function. In situations where ambient light is insufficient Infrared (IR) Illuminators facilitate night operations by providing an independent source of light. Since IR illuminators operate in near infrared range of 700 to 900 nanometers (nm) they are invisible to the naked eye.

Signal-to-Noise Ratio (SNR)

The ratio of light signal to perceived noise reaching the eye. An image tube’s SNR determines its resolution capability. Therefore, the higher the SNR, the better a tube is able to resolve objects with good contrast under low-light conditions. The best single indicator of an image intensifier’s performance.

Black Spots

Cosmetic blemishes in the image intensifier which do not affect the performance or reliability of a night vision device. Some number of varying sizes is inherent in the manufacturing process.