Electric lamp and discharge devices – Secondary emission prevention – Nonemissive material
Patent
1976-07-12
1978-05-30
Segal, Robert
Electric lamp and discharge devices
Secondary emission prevention
Nonemissive material
250213VT, 313101, H01J 3900, H01J 3902
Patent
active
040925579
ABSTRACT:
An image intensifier tube of the proximity focus type has a transparent cathode window with a curved inner surface and an anode window formed by a fiber optics plate having an inner surface curved to be substantially complementary to the cathode window inner surface. The arrangement mitigates the so-called "chicken-wire" effect and other flaws inherent in intensifiers using fiber optics at both the cathode and the anode ends. It is cheaper in manufacture and may be made of smaller depth, thereby simplifying its incorporation in existing apparatus.
REFERENCES:
patent: 3229105 (1966-01-01), Mestwerdt et al.
patent: 3267283 (1966-08-01), Kapany
patent: 3304455 (1967-02-01), Mesta
patent: 3356851 (1967-12-01), Carlson
patent: 3458744 (1969-07-01), Sowers et al.
patent: 3712986 (1973-01-01), Collings
patent: 3828192 (1974-08-01), Morsell
patent: 3989971 (1976-11-01), Santilli et al.
N. V. Optische Industrie "De Oude Delft"
Segal Robert
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