Image tube for producing optical images with high resolution

Details Image tube for producing optical images with high resolution Image tube for producing optical images with high resolution

1979-12-10

1982-11-23

Demeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Image pickup tube

313383, 313102, H01J 3126, H01J 4004

Patent

active

043607594

ABSTRACT:
An image tube for electrical measurement of optical images comprises a vacuum vessel having a photocathode at one end and a mesh intermediate its ends. The images are produced with high resolution when the distance from said photocathode to said mesh (L.sub.1) and the total extension (L.sub.2) along a central axis of the tube in the path of movement of the electrons are selected by means of the following mathematical relations: ##EQU1## the symbol n denoting an integer indicating the number of revolutions rotated by the electrons along their path of movement.

REFERENCES:
patent: 2396023 (1946-03-01), Schantz
patent: 3225237 (1965-12-01), Cope
patent: 3295010 (1966-12-01), Clayton
patent: 3329856 (1967-04-01), Foote
patent: 3341734 (1967-09-01), Nicholson
"Beam Loop Shape in Image Dissectors" by E. H. Eberhardt, Technical Note No. 107 from Electro-Optical Products Division ITT, Jun. 1969, pp. 1-9.
"A Survey of Image Dissector Performance Characteristics", Technical Note 112 from Electro-Optical Products Division ITT, Jan. 1970, pp. 1-23.

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