Improvement in screens of the luminophore of the electron tube of the cathode-ray tube, the production of such a screen of the drawings and the tube, in particular for image projection, of television provided with such a screen

摘要

The cathode ray tube comprises a screen 14 provided with alveolus 21, 22, 23 are filled with a luminophor in the form of tubes prismatic juxtaposed and whose axes 27, 21, 29 converging towards the center of the deflection of the beam of electrons. Consequently, there is a better excitation of the luminophore by the beam of electrons and an increase of the brightness of the screen. The tube usually includes a cooling device 31, 32, 33 fed into the ed ris tho support of a screen by a flow of refrigerant fluid. / p & & p & the advantages of the projection on the support of the screen of a photosensitive resins coated of mosaic identical to that which is constituted by the openings of the alveolus on the screen, and then of the sequences of development of insolating resins from a source of radiation which is mounted on the center of the deflection and of growth in the empty parts of the partitions of the alveolus. / p & & p & application is the projection of images of television.