The cathode-ray tube—A review of current technology and future trends

The development of the CRT in response to many new application fields which have arisen in recent years has resulted in a proliferation of tube designs with a correspondingly broad extension of the overall technology. The state of the art of available electron-beam peak power and number of available resolution elements is reviewed together with a discussion of deflection speeds and limitations. New and improved luminescent and cathodoluminescent materials are described and discussed including the current status of color screen techniques. Envelope materials and fabrication techniques are examined with special attention drawn to the versatility of envelope designs resulting from frit sealing techniques. A brief discussion of activity in the fields of contrast preservation and tube reliability concludes the paper.