A Practical OEM Checklist for Specifying an ITO Glass Heater
https://industrial-heat-source.theglensecret.com/mica-heating-plate-installation-tips-for-reliable-heat-transfer
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