With continuous social development, people have set increasingly higher requirements for security protection. To meet the demand for round‑the‑clock security monitoring, infrared cameras have come into being. Though smart infrared cameras hold an irreplaceable position in the market, certain problems may occur during operation, which hinder their further development. What are the common issues of infrared cameras in use? Below is a summary shared by the editorial team of Kaimorui.

The common faults of infrared cameras are listed as follows:

Service‑life Issues of Infrared LEDs

From the perspective of infrared LEDs, extending service life and increasing illumination range are often contradictory. To extend the illumination distance of infrared LEDs, manufacturers have to raise their power, which in turn shortens their service life. To prolong the service life of infrared LEDs, the priority is to avoid overloading them. Meanwhile, sufficient effective illumination distance can be guaranteed by increasing the number of infrared LEDs. Some manufacturers improve heat dissipation of the device to extend service life by adopting high‑thermal‑conductivity materials such as aluminum substrates, deploying more air‑cooling components, and enlarging the housing surface area.

Image Color Cast Problem

All monochrome cameras are sensitive to infrared light. Under visible‑light conditions, infrared light acts as stray light for color cameras, reducing their clarity and color reproduction. The CCD sensor of a camera picks up all types of light. Consequently, daytime footage differs from what human eyes perceive, as human eyes only detect visible light. Since the CCD sensor captures infrared rays, it interferes with DSP computation and results in color cast.

Heat Dissipation Problem

Infrared LEDs generate substantial heat. Once activated, heat accumulates at the front section throughout operation. Uneven heat dissipation will impair the normal performance of the camera and other components.

Red‑glow Phenomenon

The red‑glow phenomenon arises because emitted infrared rays contain visible‑light components. Light with a wavelength above 700 nm is defined as infrared light. Infrared light above 900 nm produces barely any red glow. Shorter wavelengths bring more severe red glow yet higher infrared sensitivity.

The above are common faults of infrared cameras. We hope this content is helpful for you. Should you have further questions about infrared cameras, please feel free to consult our staff.