When exploring the secrets of night vision technology, we have to mention a key component - infrared light. It gives night vision devices extraordinary night vision capabilities. So what exactly is an infrared light?

Infrared light, as the name suggests, is a lamp that emits infrared light. It emits infrared light to the surrounding environment, allowing the image sensor to identify objects in a completely dark environment. Powerful infrared illuminators can provide a longer lighting distance and a wider lighting range, allowing you to observe without restrictions at night. In a completely dark environment, it is these infrared rays that allow the image sensor to "see" objects, thereby generating clear images for you to see.

Common types of infrared light:

Night vision devices developed on the market usually have two types of infrared lights: 850nm and 940nm, which cover the needs of most users.

850nm infrared light: It can produce a strong lighting effect, allowing night vision devices to capture clearer images at a longer distance, so it is widely used in night vision devices. This infrared light can provide enough brightness to help night vision devices capture more details in dark environments, and is suitable for situations where observation is required over a large range.

However, since the 850nm wavelength is shorter and can be detected by the naked eye, the probability of being detected when observing a target will increase compared to the 940nm infrared light.

940nm infrared light: The infrared light wavelength is completely within the infrared spectrum that is invisible to the human eye. This means that the 940nm infrared lamp beads are more concealed, and this feature makes the 940nm infrared lamp beads very suitable for applications that require high concealment, such as security, military, etc.

Although the 940nm infrared lamp can provide a certain degree of lighting effect, the observation distance is shorter than that of the 850nm infrared lamp.

In short, as one of the core components of night vision devices, the performance of infrared lamps directly affects the overall effect of night vision devices. By understanding the characteristics of 850nm and 940nm infrared lamps and their applications in night vision devices, we can better choose night vision equipment that suits us and enjoy the infinite possibilities brought by the night.