How far can an infrared camera monitor? With proficient technology, an infrared night‑vision system capable of monitoring over 100 meters is entirely achievable. Proficient technology means having expertise in infrared lamp technology, infrared‑sensitive camera technology and infrared‑sensitive lens technology all at once; none of the three can be dispensed with. This article briefly lists the precautions for using infrared cameras.

Precautions for Using Infrared Cameras

1. Fogging and FrostingFog and frost form when saturated water vapour in the air condenses upon cooling. Depending on how cold the environment is, frost or fog will develop respectively. When infrared cameras are in operation, especially outdoor cameras, fog or frost often builds up on the viewing‑window glass of the protective housing due to seasonal changes, day‑night temperature differences, rain, snow and other conditions. This prevents the camera from capturing clear views and directly impairs monitoring performance.
2. Angle MatchingMatching wide‑angle infrared lamps with narrow‑angle lenses results in light waste. Furthermore, a larger emission angle of the infrared lamp does not guarantee better image quality.
3. Focus ShiftVisible light and infrared light have different wavelengths, so their imaging focal planes do not coincide. This causes blurry images either at night under infrared illumination or in daytime under visible‑light conditions — sharp by day yet fuzzy by night, or clear at night but indistinct by day.
4. Colour PerformanceAll black‑and‑white cameras are sensitive to infrared light. For colour cameras, infrared rays act as stray light under visible‑light conditions, which degrades resolution and colour reproduction. The filter fitted to colour cameras blocks infrared rays from participating in image formation.

The above are usage precautions shared by the editorial team of Kaimorui, sourced from http://www.cmr‑cctv.com/jiejuefangan.html. We hope this content is helpful to you. For more information about infrared cameras, stay tuned to Kaimorui.