How to choose an explosion-proof infrared camera lens

Explosion-proof infrared cameras can be monitored 24 hours a day, regardless of night. In some special places, 24-hour non-stop monitoring is required. Moreover, there is evidence to suggest that the incidence of certain events at night is much higher than during the day, making it more necessary to monitor and expect better results.
The camera lens is the first threshold for images to enter explosion-proof infrared cameras, and is a key equipment for explosion-proof infrared cameras. Its high-quality directly affects the imaging effect of the explosion-proof monitoring system. Therefore, selecting a suitable camera lens is crucial for the entire explosion-proof camera imaging effect.
1. The most important issue with explosion-proof infrared camera lenses is completeness. The angle of the infrared light should be consistent with the angle of view of the camera lens. If the angle of view is different, the data obtained may experience symptoms such as blurred dead angles. The angle of view of the lens needs to be selected based on the monitoring location. In addition to selecting infrared lights, cameras, and lenses, attention should also be paid to the comprehensive consideration of protective covers, power supply, and other complete sets.
2. If you can choose a lens, it's best to choose an infrared lens. Due to ordinary optical lenses, the infrared light reflected back by the object cannot effectively focus on the CCD target surface, which greatly reduces the infrared night vision effect. Especially during day and night transitions, the clarity varies due to different focal points and areas, and the impact of infrared lenses in this regard is relatively much less.
3. The resolution and transmittance of the lens must meet the requirements, which will affect the final lighting and video effect.
4. If the monitoring distance is over 1km, a laser beam expanding and collimating lens is required. Choose an appropriate laser beam expanding and collimating lens based on the size and distance of the scene to be observed, so that the laser beam can illuminate the scene to be monitored, so that the reflected light of the monitored scene can be received by the camera; Mainly to ensure sufficient light propagation arrival rate.
5. The imaging size of the lens should be consistent with the size of the CCD target surface of the camera; Otherwise, even adjusting the focal length is difficult to achieve the best effect.
6. It is best to choose an automatic aperture lens to adapt to significant changes in lighting during the day and night. The light and focal length are different between day and night.