Method for exposing a color tri-cathode ray tube panel to form t

Details Method for exposing a color tri-cathode ray tube panel to form t Method for exposing a color tri-cathode ray tube panel to form t

1984-10-10

1987-09-29

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

Using specific control or specific modification of exposure,...

430 23, 430 25, 430 26, 354 1, G03C 500, B05D 506, G03B 4100

Patent

active

046968792

ABSTRACT:
A method for constructing a color cathode ray tube wherein a light source is placed at a number of positions and exposures are made and a film on the inside surface of the panel is exposed to form prescribed stripe width patterns using the transmission light intensity distribution which are superposed plural Fresnel diffraction waveforms and wherein correction lens system is selected which correspond to the exposure of various light source positions and have different values and the absolute value of the transmission light intensity distribution and the derivative .differential.I/.differential.x of the transmission light intensity distribution at positions corresponding to the edge of the stripe width pattern are optimized throughout the inside surface of the panel.

REFERENCES:
patent: 3906515 (1975-09-01), Hosokoshi et al.
patent: 3949411 (1976-04-01), Yonai et al.
patent: 4001018 (1977-01-01), Tsuneta et al.
patent: 4023904 (1977-05-01), Sheets
patent: 4070498 (1978-01-01), Nishizawa et al.
patent: 4078239 (1978-03-01), Prazak et al.
patent: 4099187 (1978-07-01), Masterton
patent: 4099848 (1978-07-01), Osakabe
patent: 4183637 (1980-01-01), Ueyama et al.

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