Special Feature technology can reduce heat emission of IR lights, adjust the angles, and enable IR lights to reach a 90-percent efficiency level. This means that when selecting IR illuminators, choosing ones with longer wavelengths (910nm) reduces the chances of IR overexposure.
FrOSt and FOg iSSueS Frost and fog are caused by the condensation of water vapors. IR cameras installed outdoors are subjected to seasonal weather changes, day/night temperature differences, and rain or snow, all of which often cause fog or frost to form. These affect the visibility of scenes that the cameras have to capture and consequently their performance. The use of advanced electronic defrosting technology allows for automatic defrosting and defogging through controlling the condensation levels within the camera.
cleaning the prOtective hOuSing windOw OF ir cameraS IR dome cameras operating in rainy, snowy, or dusty conditions will likely have dirty protective windows, obstructing their lens. Typically, wipers are added to the housing window to clean it periodically; another method is to use self-cleaning glass housings, which also repel water, dirt, and snow.
ir camera temperature cOntrOl IR cameras generally operate for an average of 12 hours, during which, the
â–˛Fog or frost can affect the visibility of scenes that the cameras have to capture and consequently their performance.
heat generated by the illuminators end up being mostly concentrated in the front of the IR dome camera, especially with the higher heat-generating IR LEDs. This causes the temperature to be higher than average in this area and if heat cannot be dispersed evenly in a timely manner, the camera will cease to function properly. Thermostatic features that guard against overheating and overcooling are a reliable solution for the issue. Automatic cooling uses the principle of the Peltier effect, whereby heating or cooling occurs at electrified junctions as current flows through. This maintains a temperature inside the dome that is within the range for the camera to operate normally. Factory settings
If heat cannot be dispersed evenly in a timely manner, the camera will cease to function properly. 8222
are usually set at automatic heating if temperatures drop below 5 degrees Celsius, and automatic cooling if temperatures rise above 40 degrees Celsius. Tests have shown that IR dome cameras are able to operate normally in direct sunlight, within a temperature range of -40 degrees Celsius to 70 degrees Celsius.
cOmplete enclOSure OF ir cameraS Aside from temperature control, another advantage of an automated cooling system is the complete enclosure of the camera. This means that the camera is completely shielded from the environment to prevent dust, condensation, and corrosive elements from entering and damaging it. Hence, it can adapt to challenging environments such as mines where large amounts of dust and debris are always present.