Thermal Imaging, Night Vision and Infrared Camera Systems
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The quest after lost, hiding or fugitive persons in the night without uncloak ourself is a remarkable problem. With the usage of ordinary flash-lights and other light-emitter the fugitive persons can easily notice their chasers presence and position. In case of search after lost persons, the searching area reduces only for the lighted area.

Usage night vision tool provide solution for this problem. The tool helps to amplify the surrounding light within visible range make brighter the whole environment without make known the user’s position. The amplifying does not limited a narrowly defined area, so the user see his/her total environment brighter what conducive the orientation.

Operating theories, ranges of action, differences.

How the night vision works?

Answer: The night vision is a vacuumpipe, what amplify the lights of low lighted areas, make observable the surrounding area. The objective collect these surround lights and focus them to the image amplifier. The photo-cathode transfer the incident light to electronic signs.

The image amplifier boost and multiply these electronics signs. At the and of the process the multiplied signs arrive to a phosphorus-coated face and make visible picture.

Depends on the operation field there are picture amplifier pipes work in sparks, visible, and infrared province.
What is the difference between the generations?

1th Generation

Electrostaticly focused pipes with high resolution, dynamic, and low noise.

2nd Generation.

They have been made since the middle of the 80’s using MCP technology. Significantly stronger amplify feature with lower resolution.

3th Generation

The technology appeared on the late 80’s which GaAs photo-cathode provide higher sensitivity near to the infrared range. At the late 90’s appeared the advanced versions of these pipes. We call them Gen III Omni III and Gen III Omni IV.

The generations are not ment qualitative differents, they just give information about the used technology.

Which parameters are important chosen night vision:

 The important technical parameters:

- Signal-Noise Ratio
- Resolution and MTF
- Lifespan

High Signal-Noise ratio
Low Signal-Noise ratio

Lifespan

In the cases of night vision the lifespan is very important. The better products can provide around 15.000 hours, which means after that time the sensitivity around 50%