13 Facts About Night vision

1.

Night vision is the ability to see in low-light conditions, either naturally with scotopic vision or through a night-vision device.

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2.

Night vision requires both sufficient spectral range and sufficient intensity range.

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3.

Humans have poor night vision compared to many animals such as cats, in part because the human eye lacks a tapetum lucidum, tissue behind the retina that reflects light back through the retina thus increasing the light available to the photoreceptors.

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4.

Human Night vision is confined to a small portion of the electromagnetic spectrum called visible light.

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5.

Active infrared night vision is commonly found in commercial, residential and government security applications, where it enables effective night time imaging under low-light conditions.

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6.

Laser range gated imaging is another form of active night vision which utilizes a high powered pulsed light source for illumination and imaging.

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7.

Night vision device is a device comprising an image intensifier tube in a rigid casing, commonly used by military forces.

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8.

Lately, night vision technology has become more widely available for civilian use.

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9.

For example, enhanced Night vision systems have become available for aircraft, to augment the situational awareness of pilots to prevent accidents.

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10.

Specific type of NVD, the night vision goggle is a night vision device with dual eyepieces.

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11.

Night vision goggles combined with magnification lenses constitutes night vision binoculars.

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12.

Night vision glasses are single or binocular with a large diameter objective.

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13.

An automotive night vision system is used to improve a vehicle driver's perception and seeing distance in darkness or poor weather.

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