night vision equipment systems
Military night vision goggles are commonly used as artificial lighting during military operations and combat night. This adds to the safety of military personnel much as they can move without being detected by the illumination tools.
The Army uses two main types of night vision goggles:
Intensifiers Image
Image intensifier increased light work of existing (flashlight enemy, moon, starlight), so you can see how you would during the day. However, the problem is that when a bright light source appears, is overwhelmed by the image. Its advantages are light weight, price, size and providing detailed images, while consuming little energy.
Infrared Lenses
Lenses Infrared convert the infrared into visible light, but at the expense of detail, which is low. You also have trouble distinguishing between two objects that have the same level heat (which is a problem to find out what the enemy is and who is a friend). In some cases, night vision goggles can use infrared to see through walls.
Because you donâ t ™ € need ambient light with the advantage that they will work in all conditions, only to use the heat of objects.
A Global Security Survey says that these are the drawbacks of all night vision goggles:
- 20/25 to 20/40 vision at best scenario
- Monocular or tunnel vision (no peripheral vision so you need to keep looking around to see potential hazards)
- In the same distance, larger objects seem closer to the more small
- The time it takes to adjust your eyes when you take off the glasses.
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