| 摘要 |
A method for producing a kinescope having an image screen and an apertured target mask, the apertures of the mask being temporarily reduced in size for use as a photographic master for producing the image screen. Such reduction in aperture size is achieved by providing the target mask with a coating of a film-forming material which exhibits shrinkage during drying thereof. The coating is comprised of a number of opaque film portions which individually close the mask apertures and preferably are disposed on the aperture walls. The coating is dried so as to remove the central regions of the film portions, thereby providing a temporary mask with light-transmitting corridors in the film portions, such corridors being smaller in cross-section than the mask apertures. The temporary mask is used in screen printing. The shrinkable material is eliminated from the mask, after which the screen and target mask are incorporated into a kinescope.
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