Low-light-level night vision imaging structure and application thereof

Abstract

The invention relates to a low-light-level night vision imaging structure and application thereof. The low-light-level night vision imaging structure comprises a shell, an objective lens arranged in the shell, an infrared cut-off filter switcher, a fast switching controller, an imaging chip, an image processor, a display screen and an eye lens, wherein the objective lens, the infrared cut-off filter switcher and the imaging chip are sequentially arranged on the same optical axis along the light incidence direction; the objective lens adopts a visible and near-infrared confocal lens, and each lens of the objective lens is plated with a visible and near-infrared broadband antireflection film; the fast switching controller is electrically connected to the infrared cut-off filter switcher andthe imaging chip; the imaging chip is electrically connected to the image processor, and the image processor can render color information of each point of an image obtained from a color imaging imageinto an infrared black-and-white imaging image to obtain a composite image; and the image processor is electrically connected to the display screen and is used for transmitting the composite image tothe display screen for display. According to the low-light-level night vision imaging structure and application thereof, the image with high definition can be acquired.

Description

technical field [0001] The invention relates to the field of low-light night vision imaging structures, in particular to a low-light night vision imaging structure and its application. Background technique [0002] The existing mainstream low-light night vision devices such as figure 1 As shown in the figure, 101 is an objective lens, 102 is an image intensifier, 103 is a high voltage pack, 104 is a battery, and 105 is an eyepiece. The main core component is a low-light image intensifier, which is a gallium arsenide negative electron A photoelectric vacuum device composed of an affinity photocathode, an electro-optic optical component, and a display device. The objective lens of the low-light night vision device gathers the weak light reflected by the scene onto the photocathode of the image intensifier, and the photocathode excites and emits electrons, which are amplified by high voltage to form an image on the display surface, and then the human eye sees the image intensi...

AI Technical Summary

Problems solved by technology

Such as patent: CN200810051438.7. In this way, only visible light is used for image acquisition. If the image signal of the objective lens on the CCD is very weak in an environment with low illumination, the image signal enhancement and amplification are limited.

For environments with low illumination, it cannot be observed effectively, and the imaging clarity and contrast are not high

Images