摘要:
A multiple electron beam cathode ray tube has a plurality of cathodes in a plane to form an array. Grids on the same substrate are positioned in spaced relation about the cathodes so that a plurality of individually controlled electron beams are formed when appropriate potentials are applied to the cathodes and grids.
摘要:
A multiple beam cathode ray tube having an improved cathode-grid structure which facilitates grid lead connections and mounting. The cathode means has a plurality of openings which are arranged in an array pattern which is identical to the desired electron beam array pattern, and has an emitter means associated with each opening for emitting a group of electrons. The grid means is located behind instead of in front of the cathode means and is comprised of a plurality of grid elements mounted on a substrate. When appropriately biased, the grid elements cause groups of electrons which are emitted by the respective emitter means to flow through the corresponding openings in the cathode in the direction of the screen, thus establishing the required electron beams.
摘要:
A cathode-ray tube comprises an evacuated envelope having therein a target and an electron-beam-producing means including a field-emission cathode therein. The beam-producing means comprises a plurality of spaced, pointed protuberances pointing in the same direction. Each protuberance has its own field-emission-producing means, a separate focusing-field-producing means for focusing the electrons emitted from the protuberance into a beam and means for modulating the individual beams in concert. The structure produces a plurality of modulated beams that are projected as a bundle in substantially parallel paths, which may be further operated upon as a single composite beam.
摘要:
A multi-beam cathode ray tube having a cathode with six-sided channels defining a substantially honeycomb type structure having electron emission coatings on flat faces thereof lying in a single plane and facing the target area. Grid and anode panels having plural rows of plural apertures paralleling and alined with the flat faces form the plural beams, and a gradient field helical anode biased at a negative voltage level throughout its extent eliminates divergence of the beams from each other arising from like charges.
摘要:
A multi-beam cathode ray tube having a cathode with six-sided channels defining a substantially honeycomb type structure having electron emission coatings on flat faces thereof lying in a single plane and facing the target area. Grid and anode panels having plural rows of plural apertures paralleling and alined with the flat faces form the plural beams, and a graient field helical anode eliminates divergence of the beams from each other arising from like charges.
摘要:
An electron discharge device, such as a high resolution cathode ray tube, utilizes an array of electron beams provided by a multibeam single electron gun structure. The plurality of beams emanating from a common emission plane are separately modulated by a planar arrangement of separate control electrode members each having a beam aperture therein forming an aperture array. At least one accelerating-collimating electrode plane having a similar array of apertures is oriented in spaced and substantially parallel relationship with the control grid plane to provide a collimated array of beams directed to impinge the cathodoluminescent screen in a defined pattern array.
摘要:
A method of fabricating a multibeam single electron gun structure for an electron discharge device, such as a high resolution cathode ray tube, wherein a plurality of beams emanating from a common emission plane are separately modulated by a planar arrangement of separate control electrode members each having a beam aperture therein forming an aperture array. At least one accelerating-collimating electrode plane having a similar array of apertures is oriented in spaced and substantially parallel relationship with the control grid plane to provide a collimated array of beams directed to impinge the cathodoluminescent screen in a defined pattern array.