Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Balancing
Patent
1978-01-11
1980-06-03
Rolinec, Rudolph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Balancing
324 96, 324122, 340753, G01R 1702, G01R 1900
Patent
active
042064040
ABSTRACT:
A vacuum fluorescent display has a filament heated below incandescence and phosphor coated anodes. A foraminous charge-control electrostatic lens between the filament and the viewer both controls uniform illumination of the anodes and also comprises part of a contrast-enhancement element. An embodiment of the invention with a linear array of anodes and an analog-to-digital power supply forms a linear scale indicator.
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patent: 3682531 (1972-08-01), Jeffers
patent: 3967158 (1976-06-01), Saxon
patent: 4004186 (1977-01-01), Bylander
patent: 4004220 (1977-01-01), Kerber et al.
patent: 4007396 (1977-02-01), Wisbey et al.
patent: 4023876 (1977-05-01), Fukunaga et al.
patent: 4110665 (1978-08-01), Moore
Karlsen Ernest F.
Rolinec Rudolph V.
Wagner Electric Corporation
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