Shimmer Depending On Their Characteristics And Performance Of Applications Research

Since the 1930's, the LLL(Low-Light-Level) night vision technology haverapidly developed, four generations LLL night vision product which with stableperformance have been developed successfully one after another, and have beenwildly used in industry, agriculture, national defense.The LLL night vision device worked in a passive way, which depends onreceiving the radiation of the scenery reflection in skylight of nature night, its ownhiding performance is excellent. But will be greatly affected by natural environment,especially on the bad natural night sky environment such as in the thick cloud and theground smog contain, for the scenery degree of illumination and the contrast gradientdrop, the observation effect was affected. In order to enable the LLL night visiondevice work normally under each kinds of meteorological condition, the LLLincreased visual sense technology raised at the historic moment.Worked through the principle and the characteristic of LLL night vision device,the article expounded the function and the essence of the LLL increased visual sensetechnology, by use the technology correctly, change the factors: the scenery degree ofillumination, the matching degree of the scenery reflection radiation spectrumdistribution and photocathode response spectrum, the initial contrast of target andbackground and so on, to make the LLL night vision device work at the normalcondition under the different natural night sky condition, it has important practicalsignificance to improve efficiency of using LLL night vision device.This article proposed that it is not appropriate to use "the LLL increased visualsense technology can improve the times of viewing distance of the LLL night visiondevice" as a technical criterion to measure the result. This article also doespreliminary studies to the practical application of the LLL increased visual sensetechnology.