Laser beam scanning method for maintaining a linear beam intensi

Details Laser beam scanning method for maintaining a linear beam intensi Laser beam scanning method for maintaining a linear beam intensi

1987-10-20

1989-03-21

Goldberg, E. A.

Recorders

Printing, dotting, or punching marker

Ink transfer support or moving means

358296, G01D 942, H04N 123

Patent

active

048147915

ABSTRACT:
A laser beam recording method and apparatus are constituted for recording a continuous tone image by scanning a laser beam emitted by a semiconductor laser on a photosensitive material by a beam scanning system, and controlling a drive current for the semiconductor laser based on a light emission level instructing signal corresponding to an image signal, thereby to modulate the intensity of the laser beam. The laser beam intensity is detected, and a feedback signal corresponding to the detected intensity is fed back to the light emission level instructing signal. The light emission level instructing signal is corrected by a correction table to compensate for nonlinearity of drive current-optical output characteristics of the semiconductor laser and/or nonlinearity of incident light intensity-optical transmittance characteristics of an optical element of the beam scanning system, thereby to make linear the relationship between the intensity of the laser beam based on the corrected light emission level instructing signal and the uncorrected light emission level instructing signal.

REFERENCES:
patent: 4570251 (1986-02-01), Yokota
patent: 4583128 (1986-04-01), Anderson
patent: 4698692 (1987-10-01), Fry
patent: 4727428 (1988-02-01), Futatsugi

Affiliated with

Also associated with

Rating

Laser beam scanning method for maintaining a linear beam intensi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Laser beam scanning method for maintaining a linear beam intensi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Laser beam scanning method for maintaining a linear beam intensi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-480272