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Old 12-13-2009, 06:50 AM   #16 (permalink)
NeilBlanchard
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Hi,

Quote:
Originally Posted by basslover911 View Post
Or a "ring of heat" ... simply a heated filament to melt the snow when a sensor "sees" that there is no light going through (a la iphone if you know what i mean) ... so when there is no light coming through that means its covered with ice/snow... and the heater turns on ... simple
Yes, a thermistor could turn on a backup incandescent light bulb (an infrared heater that happens to put out a little visible light!) behind the LED array to warm the whole thing up.

Because folks, it's not like the incandescent was perfect! They burn out, they use a lot of power -- and the unintended consequences of using too much power in total is what we are seeing today!

Any design solution is a mix of compromises.
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