Application Note

Application Note: LuxVu Transparent Window Heaters

Source: Abrisa Technologies

LuxVu Transparent Heater Windows mitigate the adverse effect of cold weather on the functionality and visibility of outdoor security cameras. Environmental concerns are regularly an issue when dealing with outdoor optical equipment and certain measures must be taken to mitigate the impact of those concerns.

Extreme weather conditions are familiar territory for the military as they are called upon to operate in hostile environments throughout the world, and have spent a significant amount of research time to determine what specific measures should be taken to assure that equipment will continue to function properly. In arctic conditions the military takes special care to ensure that cameras, liquid crystal displays and handheld devices are kept above temperatures that risk damage to their optics such as LCD failure due to freezing. Transparent heater windows help to mitigate these conditions by keeping the components at elevated temperatures.

Outdoor security cameras are a prime example of optical equipment that are susceptible to cold weather con-ditions and must be kept above a minimum operating temperature to avoid electronics malfunction. Security camera manufacturers offer systems that help to address these concerns by heating the camera housing. In addition to preventing the electronics from malfunctioning it is also important to prevent the housing window from frosting over or collecting condensation and blocking the field of view of the camera. In some cases Transparent heater windows use an electrical current variation system to monitor and adjust the window temperature so that it is always slightly warmer than ambient conditions with a lower limit that is just above freezing temperatures.