More black technology than four-eye night vision device - AN/PVS-21 low light level night vision
When the US military night vision device is mentioned, the first thing that people think of may be the GPNVG-18 four-eye night vision device used by the seals in the action of the Poseidon. And almost everyone thinks that GPNVG-18 is the top-level low-light night vision device of the US military. In fact, the price of GPNVG-18 is the most expensive, but the technical content is also AV/PVS-21. PVS-21 The Evolution of The PVS-21 The low-light night vision device has evolved from the first generation to the fourth generation. Basically, in addition to imaging clarity, there has not been much progress, especially in the two critical issues of depth of field and field of view. GPNVG-18 mainly solves the problem of field of view through the superposition of 4 night vision devices, but compared with GPNVG-18, AN/PVS-21 low-light night vision device has achieved both depth of field and field of view. Laser holographic projection. The AN/PVS-21 folding night vision goggles The PVS-21 ...