Vision technology consists of two major types: image intensification (light amplification)
and thermal imaging (infrared). Most consumer night vision products are light
amplifying devices. Light amplification technology takes the small amount of light,
such as moonlight or starlight, that is in the surrounding area, and converts
the light energy (scientists call it photons), into electrical energy (electrons).
These electrons pass through a thin disk that's about the size of a quarter and
contains over 10 million channels. As the electrons travel through and strike
the walls of the channels, thousands more electrons are released. These multiplied
electrons then bounce off of a phosphor screen which converts the electrons back
into photons and lets you see an impressive nighttime view even when it's really
All image intensified night vision products
on the market today have one thing in common: they produce a green output image
.There are three important attributes for judging performance. They are: sensitivity,
signal-to-noise, and resolution. As the customer, you need to know about these
three characteristics to determine the performance level of a night vision system.
or photoresponse, is the image tube's ability to detect available light. It is
usually measured in "µA/lm," or microamperes per lumen. That's
why many of our products do not come with standard IR illuminators. With many
applications illuminators aren't necessary. Some manufacturers put IR illuminators
on their products in order to get acceptable performance under low light conditions.Signal-to-noise
plays a key role in night vision performance. A microchannel plate used to transfer
a signal from input to output. Just as high-end stereo equipment gives you quality
Resolution is the third major consideration
when purchasing night vision. This is the ability to resolve detail in your image.
Some manufacturers put magnified optics in their systems to give the illusion
that they have high resolving systems. In the trade-off, field of view is sacrificed.
Some models give the option of higher magnification so you can have it if you
want it, not because your system needs it to function effectively. Most of Morovision's
products offer a uniquely formulated phosphor to create the highest contrasting
images, therefore generating the highest resolution products available to the
You may also like this : IMode, Blue Gene , Access gateways, Computer Forensics, Direct Memory Access , Crusoe, Digital Subscriber Line , Computer Memory Based on the Protein Bacterio-rhodopsin, DNA Based Computing, Free Space Optics , Freenet, Fiber Distributed Data Interface , Dynamic Virtual Private Network, Introduction to the Internet Protocols, Graphic processing Unit, High Altitude Aeronautical Platforms, Aspect-oriented programming (Aop) , Intel MMX Technology, Hyper-Threading technology , IMAX, Brain-Computer Interface , InfiniBand, Multicast , Inverse Multiplexing, Blue Tooth , Holographic Memory , Jini Technology, Bio-metrics, Magnetic Random Access Memory , Intrution Detection System, Multiterabit Networks, Neural Networks And Their Applications, Quantum Computers , Small Computer System Interface, OpenRAN , Quadrics Interconnection Network, Plan 9 Operating System , Structured Cabling, Quantum Cryptography , Speech Application Language Tags, Real- Time Systems and Real- Time Operating Systems, Parallel Computing In India , Steganography, Virtual LAN Technology, Artificial Neural Network (ANN), Tele-immersion, VHDL, Blue Eyes , Voice Over Internet Protocol, The Tiger SHARC processor, Computer Seminars Reports and PPT