Abstract: A portable food sterilization assembly includes an ice chest defining an interior space to contain food items. The ice chest is comprised of a thermally insulating material to inhibit thermal communication between the interior space and ambient air. A lid is hingedly coupled to the ice chest for opening or closing the interior space. The lid is comprised of a thermally insulating material to inhibit thermal communication between the interior space and ambient air. A plurality of ultraviolet light emitters is integrated into the ice chest to emit ultraviolet light into the interior space for sterilizing the interior space of the ice chest thereby sterilizing food items contained in the interior space. A respective one of the plurality of ultraviolet light emitters is integrated into the lid to emit ultraviolet light into the interior space of the ice chest thereby sterilizing food items contained in the interior space.

Abstract: A portable food sterilization assembly includes an ice chest defining an interior space to contain food items. The ice chest is comprised of a thermally insulating material to inhibit thermal communication between the interior space and ambient air. A lid is hingedly coupled to the ice chest for opening or closing the interior space. The lid is comprised of a thermally insulating material to inhibit thermal communication between the interior space and ambient air. A plurality of ultraviolet light emitters is integrated into the ice chest to emit ultraviolet light into the interior space for sterilizing the interior space of the ice chest thereby sterilizing food items contained in the interior space. A respective one of the plurality of ultraviolet light emitters is integrated into the lid to emit ultraviolet light into the interior space of the ice chest thereby sterilizing food items contained in the interior space.

Abstract: A wobulator position sensing system includes a wobulator plate, having a wobulator window, and a position detector, associated with the wobulator plate. The wobulator is disposed along an image projection path, and configured to selectively tilt so as to shift the projection path. The position detector is configured to sense a magnitude of tilting of the wobulator plate, and to produce a feedback signal useable to control tilting of the wobulator plate.