Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1976-04-28
1978-01-24
Chatmon, Jr., Saxfield
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
313 94, 313442, H01J 3150, H01J 3912
Patent
active
040705749
ABSTRACT:
An improvement in a magnetically focused image intensifier for increasing the usable range of magnification without degradation of image quality and while keeping to a minimum the power requirements of the focusing coils. The improvement comprises an arrangement of focusing coils which reverses the direction of the axial magnetic field distribution between the planes of the photocathode and the phosphor screen.
REFERENCES:
patent: 2727182 (1955-12-01), Francken
patent: 2917645 (1959-12-01), Fries
patent: 2950405 (1960-08-01), Poole
patent: 3286114 (1966-11-01), Schlesinger
patent: 3801849 (1974-04-01), Edgecumbe
Fletcher James C.
Vine James
Chatmon, Jr. Saxfield
Manning John R.
Marchant Robert D.
Tresansky John O.
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