Camera and temperature-controlling jacket

Claim 1

A COMBINATION TELEVISION CAMERA AND TEMPERATURE CONTROLLING JACKET COMPRISING, A TELEVISION CAMERA INCLUDING A PICKUP TUBE, DEFLECTION COILS SURROUNDING THE NECK OF SAID PICKUP TUBE, A CASE ENCLOSING SAID TELEVISION CAMERA, SAID CASE BEING CUT AWAY TO EXPOSE SAID PICKUP TUBE IN THE REGION OF SAID DEFLECTION COILS, A HEAT CONDUCTING METALLIC BLOCK IN INTIMATE CONTACT WITH SAID DEFLECTION COILS, A DOUBLE WALL U-SHAPED JACKET HAVING INNER AND OUTER WALLS, SAID OUTER WALL BEING PROVIDED WITH FINS ON ITS EXTERIOR SURFACE, SAID INNER WALL BEING CONSTRUCTED TO FORM A CLOSE FIT WITH THREE OF FOUR OUTER SURFACES OF SAID METALLIC BLOCK, A HEAT INSULATING PAD INTERPOSED BETWEEN THE FOURTH OUTER SURFACE OF SAID METALLIC BLOCK AND THE REMAINDER OF THE CAMERA CASE, A PLURALITY OF METALLIC BLOCKS MECHANICALLY CONNECTING THE INNER AND OUTER WALLS OF SAID U-SHAPED JACKET, SAID BLOCKS BEING JOINED TO BOTH WALLS BY JUNCTIONS HAVING LOW THERMAL BUT HIGH ELECTRICAL RESISTANCE, SAID BLOCKS CONSISTING OF A MATERIAL CAPABLE OF GENERATING A TEMPERATURE DIFFERENCE BY THE PELTIER EFFECT, AND MEANS FOR APPLYING AN ELECTRICAL CURRENT TO SAID BLOCKS TO LOWER THE TEMPERATURE OF SAID METALLIC BLOCK.