How Operating Conditions Influence ITO Glass Heater Design Choices
https://silicone-heating-insights.dovetailscope.com/posts/where-mica-heaters-are-used-in-industrial-equipment
In camera windows, an ITO glass heater must deliver heat in a controlled way. It uses a transparent conductive ITO layer applied to glass. One useful trait is full-surface heating. Still, edge losses can change the result