An apparatus for automatically providing white balance in an electronic still camera. When the camera is not in use a sliding cover is placed over the lens with a white translucent sheet facing the lens. At the beginning of use, the sliding of the lens cover to uncover the lens triggers a white balancing...http://www.google.com.au/patents/US4739394?utm_source=gb-gplus-sharePatent US4739394 - White balanced electronic still camera
