A low-level low-light night vision device with low background noise

Abstract

The invention discloses a low-background-noise type low-light night vision device, which comprises a fuselage, a lens, an eyepiece, an objective lens and a strong light filter mirror, a boss is arranged on the side of the fuselage, and a microchannel plate main body is arranged in an image intensifier. The main body of the microchannel plate is provided with a protective ring radially outside, the protective ring is located in the groove formed by the protective sleeve and the inner ring, the other side of the inner ring is provided with a first pin shaft, and a curved rod is provided on the first pin shaft, The bent bar is connected with a second pin shaft, and a hard spring is arranged on the buffer block. In the present invention, a boss is arranged on the side of the fuselage, and the removed lens cap is fixed on the boss, which can not only prevent the lens cap from being lost due to the ever-changing tense situation on the battlefield during use, but also prevent the lens cap from hitting the objective lens or It is the user, which causes damage to the objective lens or affects the user's operation, avoids the ion feedback effect caused by the high-density electron cloud at the exit of the microchannel, reduces background noise, prevents electrons from reflecting at the entrance of the microchannel, and damages the photocathode.

Description

technical field [0001] The invention relates to a low-light night vision device, in particular to a low-background noise low-light night vision device. Background technique [0002] The low-light night vision device can convert, enhance, and process the weak light under weak light conditions at night so that the weak light can be seen by the user. Through the low-light night vision device, people can see what the human eye cannot see. X-rays, ultraviolet light, near-infrared radiation, etc. With the continuous development of science and technology, low-light night vision devices are widely used in military, astronomy, aerospace, biology, high-speed photography, photoelectric fire control and many other fields, and can be combined with infrared, laser, radar and other technologies to form a complete system. The importance of low-light night vision devices for photoelectric detection, measurement and warning systems has gradually become prominent, but my country's low-light ni...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a low-background noise type low-light night vision device for the defects of traditional low-light night vision devices, so as to solve the problem that the connection belt of the lens cover of the traditional low-light night vision device is easily broken and the lens cover is lost or The problem of hitting the objective lens and the user due to the user moving

Images