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Canon has filed a patent that uses more of the camera as a heatsink to cool the electronics and most likely the sensor. I think this would be especially useful for video applications. 4K perhaps?
Patent Publication No. 2014-171141 (Google Translated)
- Published Date 2014.9.18
- Filing date 2013.3.5
- An electric path for heat imaging devices , electric heating member group, member boric mount ring portion (heat sink) heat to low thermal conductivity of the resin, and the order of the mount ring