Accession Number : AD0428609


Title :   RESEARCH AND DEVELOPMENT OF TWO-COLOR DIRECT VIEW STORAGE TUBE WITH SELECTIVE ERASURE.


Descriptive Note : Interim development rept. 24 June-1 Oct 63,


Corporate Author : HUGHES AIRCRAFT CO OCEANSIDE CALIF VACUUM TUBE PRODUCTS DIV


Personal Author(s) : Damon,P P


Report Date : 05 Nov 1963


Pagination or Media Count : 36


Abstract : A direct view storage tube is being developed which is capable of displaying stored information in either of two colors or in intermediate hues, and selectively erasing that information. The operating principle is based on the fact that flood electrons which pass through holes in the storage mask when the storage-surface potential is near cutoff, fall within small areas on the viewing screen opposite the storage mask holes; whereas flood electrons which pass through the holes when the potential is near its maximum, (i.e., flood gun cathode potential), fall on larger overlapping areas of the viewing screen. The viewing screen consists of two phosphors. One occupies small areas in register with the storage-mask holes, while the other occupies areas surrounding the first. This tube is 10 inches in diameter and is apparently an extension of the work performed under a previous program. Included in this report are data on flood gun electron trajectories and spot spread and target control characteristics measured on a monochromatic version of the proposed tube. Approximate brightness and color-shift characteristics for a given phosphor dot pattern were calculated from these data. Comparisons are made between the performance expected from this two-color tube and the tube developed under the earlier program. (Author)


Descriptors :   *MANUFACTURING , COLORS , STORAGE TUBES , ELECTRON GUNS , ELECTROSTATIC FIELDS , COLLIMATORS , CATHODE RAY TUBE SCREENS , VOLTAGE , INTENSITY , LUMINESCENCE , FREQUENCY SHIFT


Distribution Statement : APPROVED FOR PUBLIC RELEASE