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Night Vision Camera Principle And Main Technical Issues

Views: 0     Author: Site Editor     Publish Time: 2022-05-05      Origin: Site

Night vision cameras can be roughly divided into infrared laser illuminator equipment, integrated. The camera device and the spherical camera device include several parts such as control circuits. In terms of function, it is the infrared laser lighting module, the image acquisition module, and the spherical camera control module. So what are the principles and main technical issues of night vision cameras? Let's take a look at it next.


night vision camera



Here is the content list:

Principle

Performance Issues of Infrared Laser Illuminators

Structure and Control Strategy Issues

Effective distance and video image effect problems



Principle

The night vision camera is generally composed of an objective lens, a lens barrel, an imaging tube, an eyepiece, a circuit system, and a connection system. The imaging tube is the core component, and it is also the component that determines the performance and generation of the night vision camera. The working principle of the night vision camera can also be said to be the working principle of the booster tube: the booster tube converts the weak light that cannot be sensed by the naked eye in the environment into electrons through the photocathode. Thousands of times of enhancement, the accelerated electrons bombard the phosphor screen on the backside of the imaging tube, which is converted into a light signal visible to the human eye. The image is directly visible to the naked eye and other advantages and has been selected by the military and police departments at home and abroad as essential equipment for law enforcement operations in low-light environments for many years.



Performance Issues of Infrared Laser Illuminators

The illumination light source of the night vision camera is provided by an infrared laser illuminator. The working conditions and performance parameters of the infrared laser illuminator directly determine the performance of the entire infrared laser spherical camera. The performance of the infrared laser is determined by the characteristics of the laser material, the optical system, and the driving power control circuit. Therefore, it is very important to design a stable and reliable laser illuminator with good performance through the research of each part of the infrared laser illuminator.



Structure and Control Strategy Issues

The night vision camera is an integrated monitoring device. The infrared laser illuminator is assembled inside the camera and connected to the dome camera control circuit for power supply control. Therefore, how to make the structure of the night vision camera more reasonable, so that the performance indicators in all aspects meet the requirements, which are both beautiful, firm, reliable, and effective, and at the same time design a superior control strategy, are all crucial.



Effective distance and video image effect problems

The night vision camera is used for video surveillance, displaying the video image data output by the camera through the back-end display storage device. In different test environments, setting different infrared laser and camera parameters will affect the final illumination distance and video images. Among them, the performance of infrared laser is determined by the characteristics of the laser material, optical system, and driving power control circuit. Therefore, it is of great significance to process and analyze the experimental data, draw conclusions and find the best solution by simulating experiments in different situations.



The above is about the principle and main technical issues of the night vision camera. If you are interested in a night vision camera, you can contact us. Our website is http://www.argustecn.com/. I look forward to your arrival very much and hope to cooperate with you.


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