Engineer Manager Name:Jacky
WhatsApp/ Wechat:0086-187 9245 6795
Email:mh_elec@126.comorjacky@mh-elec.com
Night vision devices (NVDs) are special devices that amplify the available light in low light conditions or, in complete darkness, enhance the infrared (IR) illumination from IR flashlights. Thanks to these devices, you can see the image in the picture at night in low light conditions. Since these devices amplify the light, very bright spots from the lanterns can be seen in the background. Night vision is used in various applications, from simple CCTV cameras to night vision rifle scopes.
The principle of operation - amplification of weak light from weak sources.
Low-light night vision equipment consists of four main components: strong light objective lens, image intensifier, eyepiece, and power supply. In terms of optical principles, low-light night vision devices are special telescopes with image intensifiers.
Weak natural light radiates through the target surface, enters the night vision device, and is focused on the photocathode surface of the image intensifier (coinciding with the back focal plane of the objective lens) under the action of the strong light objective lens, and excites photoelectrons; the photoelectrons are electronically optics inside the image intensifier It is accelerated, focused, and imaged under the action of the system, bombards the fluorescent screen of the image intensifier at an extremely high speed, and excites strong enough visible light, thereby turning a distant target illuminated only by weak natural light into something suitable for human eyes to observe. Visible light image. Through further magnification of the eyepiece, more effective visual observation is achieved. The above process includes two conversions from optical images to electronic images and then to optical images.
The imaging principle of the low-light night vision device is like this, it is very simple. By the way, our factory has a lot of pvs-14 in stock. Welcome to our factory for checking!
Engineer Manager Name:Jacky
WhatsApp/ Wechat:0086-187 9245 6795
Email:mh_elec@126.comorjacky@mh-elec.com
