I saw an engineered housing for a box camera at an agricultural site in Kansas that always fascinated me.
I never was able to find out who manufactured it, but the housing featured a small rubber bladder around the front pane and sunshield of the camera.
Overnight, if icicles formed (like in the picture above) an operator could trigger a small air pump using camera outputs to inflate the bladder. The expansion would break the ice loose from the front end of the camera.
It worked really well for 'deicing' the camera, and which in this case was mounted to always be near flowing water regardless of outside temperature (it was an agriculture irrigation manufacturer), and ice formed on the camera on many days during the winter.
Like I said, I never caught the manufacturer or model information for that housing. Does anyone have an idea?