History and future development of night vision equipment
The channel to make the process requirements is very high. The DaoBan the method of making a variety of, generally USES the solid core pull method. Made from night-vision goggles like enhancement have two kinds, one kind is called nearly stick type, called a fall like type.
The DaoBan nearly posted declined as enhancement will be placed in the DaoBan optoelectronic cathode and between the screen. The launch of the cathode in electric field electron beam under the action of the play to the DaoBan. After after double, projected onto a screen imaging. Due to the structure, the relation between the this night-vision goggles of small size, but identify rate is low, optical gain smaller, need additional as device, also known as chip tube.
But like the DaoBan decline like enhancement, is placed in front of the screen in the DaoBan, to reach tens times more optical gain, and do not fall like again.
The second generation product than the first generation has the following advantages:
• is the total length of the first generation 1/3 even more short, light quality, make the whole machine made night-vision goggles size is reduced greatly. In 1970, for example, the American rifle with AN/PVS-3 glimmer of a sight to a shorter length than the first generation two-thirds, quality reduce half, the price is reduced by half, but sensitivity improved.
2. The channel of the electronic reach out shoot a number will saturated, so suddenly appear bright light won't burn out night-vision goggles, congenital have antiglare function.
China in the 1980 s, the second generation of the successful development of the light night-vision goggles, can be used with the aim of weapons team, also can work as a watch instrument use, eliminate strong light interference function.
- Prev:No record
- Next:National coal mine safety