Fluorescent printer head

Details Fluorescent printer head Fluorescent printer head

1989-10-16

1990-08-14

Griffin, Donald A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

346160, G01D 942, G03G 1500

Patent

active

049491016

ABSTRACT:
A fluorescent printer head includes a second control electrode (4) including a plurality of grid plates (5) formed with slits (6) and arranged in parallel above anodes (104), and a first control electrode (1) comprising a single plate member formed with a plurality of slits (3) and arranged above the second control electrode (4). The second control electrode (4) has a dummy grid plate (7) at each end, while the first control electrode (1) has a contiguous dummy grid section (2) at each end. This results in the electric field near the control electrodes being uniform in the longitudinal direction of anodes, preventing nonuniformity of luminance.

REFERENCES:
patent: 4730203 (1988-03-01), Watanabe et al.
patent: 4803565 (1989-02-01), Teshigawara et al.
patent: 4825230 (1989-04-01), Shimizu

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