Abstract: A compact television camera readily convertable between indoor and outdoor use having a housing frame with front and rear face and lateral side opening to allow access to the frame's interior upon removal of housing lids placed thereover. The front face includes a mounting unit adapted to be coupled with an indoor or outdoor camera lens of which an outdoor lens with a front heating unit is illustrated. The rear face is provided with an opening to allow plug in of a power source etc., and a mounting device is provided which allows removal and remounting of the camera without problems. In addition, circuit boards are utilized for engagement with the camera elements while so positioned to allow ready access to the cameras interior for conversion, servicing and/or replacement of parts.

Abstract: A device for heating the front lens of a television camera to prevent an interfering moisture on the lens which includes a heating unit, detachable from the lens tube, comprising a front disc or lens attached to a support plate; a rear disc or lens also attached to said support plate so as to form a sealed chamber between the front and rear disc; and heat coatings deposited on the chamber side surface of the front disc for heating purposes.