Method of producing a halftone picture by vibrating light source

Details Method of producing a halftone picture by vibrating light source Method of producing a halftone picture by vibrating light source

1978-10-26

1981-02-17

Kimlin, Edward C.

Radiation imagery chemistry: process, composition, or product th

Effecting frontal radiation modification during exposure,...

354 4, 355 54, 358283, 430 6, 430494, G03F 500, G03C 504

Patent

active

042516250

ABSTRACT:
A spot of light is formed upon a photosensitive material which is moved in a scanning direction, and the spot is vibrated to and fro along a vibration direction at a considerable angle to the scanning direction, and the amplitude of vibration, and the center of the vibration path, are controlled so that the spot exposes areas on the photosensitive material which form half-tone dots.

REFERENCES:
patent: 3075042 (1963-01-01), Levine
patent: 3461229 (1969-08-01), Oppenheimer
patent: 3667947 (1972-06-01), McKee
patent: 3668311 (1972-06-01), Bigliano et al.
patent: 3737225 (1973-06-01), Aughton
patent: 3867150 (1975-02-01), Ketley
patent: 3888673 (1975-06-01), Suzuki et al.
patent: 3985439 (1976-10-01), Kiemle
patent: 4004079 (1977-01-01), Boston
patent: 4053906 (1977-10-01), Schultz
patent: 4149194 (1979-04-01), Holladay

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