Abstract:
The article summarized the status quo and trend of the lowlightlevel image intenssifier in the recent years. Now,the development of lowlightlevel devices will be in the direction towards IV generation proximity focus image intensifier. The breakthrough of its technology at two points has made as follows:(1) the use of uncoated MCP;(2) the use of fusion technology of IR thermal imaging and lowlightlevel night vision for the photocathode. Night vision instruments are advancing towards smallsized, portable and cheap oneman helmetmounted displays and monocular/binocular night visions,and light arm sights.The life of LLL device is the key problem which we have to solve for applications.