H - Electricity – 01 – J
Patent
H - Electricity
01
J
316/6, 313/1.1
H01J 61/35 (2006.01) H01J 17/49 (2006.01) H01J 17/20 (2006.01)
Patent
CA 1149437
ABSTRACT A monochromatic and polychromatic display system (10) which is operative by the generation of ultraviolet energy impinging on fluorescent material compositions (54) in order to create electromagnetic wave generation within the visible bandwidth of the electromagnetic spectrum through fluorescent excitation of fluorescent material (54). The operative ultraviolet energy produced results from the ionization of metallic atoms from a metallic coating (28) applied to cathode opening sidewalls (26) of a cathode mechanism (12). The display system (10) in- cludes a matrix of cathode openings (22) formed in a cathode plate member (14). The cathode openings (22) define the cathode opening sidewalls (26) which have a metallic coating (28) applied thereto. The sidewall metallic coatings (28) and additionally, the metallic coating annular portion (30) of each hollow cathode cavity are coupled to a next succeeding cathode element in a linear column direction (32). A matrix of anode elements (46) are mounted below the cathode plate member (14) and are axially aligned with the cathode openings (22). The display sys- tem (10) is formed into a monolithic structure which in- cludes an internal chamber (??) within which an inert or combination of inert gases is introduced. Fluorescent material compositions (54) are positionally located in aligned relation above cathode openings (22). Electrical energization of the cathode elements and the anode elements (46) results in ionization of metal atoms emitted from the metallic coating (28). The ionization process pro- vides for ultraviolet radiation which is directed to the fluorescent material composition (54). The display system (10) allows for a wide dynamic range of light intensity with an optimization of the reproducibility of physical characteristics. More importantly, the display system (10) provides a visual display substantially devoid of any flicker within the visible bandwidth of the electromagnetic spectrum.
383891
Gowling Lafleur Henderson Llp
Hanlet Jacques M.
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