Low-light night vision imaging structure based on RGB-IR imaging chip and application thereof

Abstract

The invention relates to a low-light night vision imaging structure based on an RGB-IR imaging chip and application thereof. The structure comprises a shell, an objective lens, the RGB-IR imaging chip, an image processor, a display screen and an eyepiece, wherein the objective lens, the RGB-IR imaging chip, the image processor, the display screen and the eyepiece are mounted on the shell separately; the RGB-IR imaging chip is disposed in the light emitting direction of the objective lens and located on the same optical axis as the objective lens; the objective lens is a visible and near-infrared confocal lens, and each lens of the objective lens is plated with a visible and near-infrared broadband anti-reflection film; an RGB output end and an IR output end of the RGB-IR imaging chip are both electrically connected to the image processor for simultaneously transmitting an RGB image signal and an IR infrared black-and-white image signal to the image processor; the image processor renders color information in an RGB image into an IR black-and-white image to obtain a composite image; the image processor is electrically connected with the display screen to transmit the resulting composite image to the display screen for display; a display surface of the display screen is arranged in the light incidence direction of the eyepiece and located on the same optical axis as the eyepiece.

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 based on an RGB-IR imaging chip 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 ...

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

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