Troubleshooting Slow Heat-Up in a Glass Heater System

https://thin-film-heating.unionquill.com/posts/polyimide-heater-temperature-control-for-sensitive-components

In camera windows, a glass heater must deliver heat in a controlled way. It uses a glass panel combined with a conductive heating layer or heater element. One useful trait is anti-fog capability. Still, thermal stress can change the result