Method and apparatus for forming patterns of fluorescence on a c

Details Method and apparatus for forming patterns of fluorescence on a c Method and apparatus for forming patterns of fluorescence on a c

1990-07-09

1991-12-10

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

With testing or adjusting

430 24, 430 30, 430945, 354 1, H01J 9227

Patent

active

050713809

ABSTRACT:
A fluorescence pattern forming method and apparatus includes electron beams being irradiated over a face panel, on which a fluorescence layer is formed, to form a fluorescence pattern on a color CRT. The fluorescence layer is formed by coating a slurry of fluorescence substance. According to predetermined pattern designing data, a control device causes the electron beams to be irradiated over the fluorescence layer on the face panel so that the fluorescence luminesces. This luminescence is detected by a light detector located on the convex side of the face panel. A correcting device gives a correcting signal to the control device to correct the irradiated position according to the detected light quantity.

REFERENCES:
patent: 4050081 (1977-09-01), Schulz
patent: 4053904 (1977-10-01), Williams
patent: 4053905 (1977-10-01), Schiafer
patent: 4284695 (1981-08-01), Fisher
patent: 4436394 (1944-03-01), Kelly et al.
patent: 4652462 (1987-03-01), Nishizawa et al.
patent: 4797334 (1989-01-01), Glerdinning
"Electron Beam Direct Writing Technology for Printed Wiring Board" (IEEE/CHMT '89 IEMT Symposium).

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