Light beam scanning recording method

Details Light beam scanning recording method Light beam scanning recording method

1987-12-23

1989-02-21

Goldberg, E. A.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346108, 350 68, 358296, G01D 900, G01D 942

Patent

active

048069469

ABSTRACT:
In a light beam scanning recording method, a continuous tone image is recorded on a photosensitive material by scanning a light beam deflected by a rotating polygon mirror on the photosensitive material and carrying out pulse number modulation or pulse width modulation of the light beam in accordance with image signals. A single picture element string is scanned by the light beam a plural number of times which is equal to integral multiples of the number of mirror surfaces of the rotating polygon mirror. The number of pulses per picture element or the pulse width per picture element is distributed among the plural number of times of scanning so that the total number of pulses per picture element or the total pulse width per picture element in the plural number of times of scanning coincides with a predetermined value.

REFERENCES:
patent: 4560862 (1985-12-01), Eastman

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