In one embodiment, a camera includes an image sensor, a sheath, and a housing. A first end of the sheath is closed to form a cavity to accommodate the image sensor, and the housing is adapted to mate with a second end of the sheath. One of the housing and the second end of the sheath includes at least...http://www.google.se/patents/US6413209?utm_source=gb-gplus-sharePatent US6413209 - Imaging system with condensation control
