Does night vision work in total darkness?
Sales Engineer:Grace Gao
Email: grace@bri-elec.com
WhatsApp:0086-199 2997 5286
Night fell and darkness enveloped everything. The world sleeps during the day, but you have a unique superpower - night vision devices.
Night vision devices work by amplifying the available light in a given area, so if there is absolutely no light to amplify, your night vision device becomes an expensive eye mask. However, this does not mean that night vision equipment is useless in complete darkness.
If your night vision device is equipped with an infrared illuminator, this will provide the light the device needs to operate. To understand how it works, we must first understand the night vision device itself.
All objects reflect infrared light from a light source such as the moon or stars, and night vision devices work by intensifying this light, often producing a bright green image due to the green phosphor used in the image intensifier tube. Unfortunately, night vision goggles can become damaged if they are exposed to direct sunlight.
Now, in zero-light environments, infrared illuminators can come in handy to provide a light source. An infrared illuminator, also known as an IR illuminator, is a device that emits light in the infrared spectrum. It is used to improve visibility in low or no light conditions.
Infrared light is just beyond the visible spectrum that the human eye can detect. Although we cannot see infrared light, many cameras can detect it and use it to produce clear images even in the dark.
The working principle of infrared illuminator is as follows:
1. When it gets dark, the infrared illuminator starts to emit infrared light.
2. Infrared light illuminates the surrounding area, but because it is infrared, it is invisible to the human eye.
3. Cameras sensitive to infrared light can receive infrared lighting. This allows the camera to "see" in the dark and capture clear images in complete darkness.
Infrared illuminators are a key component of many security systems, allowing for reliable monitoring around the clock, regardless of lighting conditions. They are usually built into the camera, but can also be added to the system as a separate device to enhance its low-light capabilities.
Infrared technology is the core of night vision devices. Infrared radiation is a type of light that, although invisible to the human eye, shines brightly in the dark. Night vision devices receive infrared light through special infrared sensors and convert it into electronic signals. Then, through the enhancement and processing of the electronic signal, the night vision device converts it into an image that the human eye can see and displays it through a display or lens.
Sales Engineer:Grace Gao
Email: grace@bri-elec.com
WhatsApp:0086-199 2997 5286
