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2nd
generation night vision is primarily used by law enforcement or
for professional applications. This is because the cost of a generation
2 night vision unit is approximately $500.00 to $1000.00 more
then a 1st generation.
The main difference between a 1st
and a 2nd generation night
vision unit is the addition of a micro-channel
plate, commonly referred to as a MCP. The MCP
works as an electron amplifier and is placed directly behind the photocathode.
The MCP consists of millions of short parallel
glass tubes. When the electrons pass through these short tubes, thousands
more electrons are released. This extra process allows 2nd
generation night vision units to amplify the light many more times
than 1st generation giving
you a brighter and sharper image.
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