Laser scanning unit having automatic power control function

Details Laser scanning unit having automatic power control function Laser scanning unit having automatic power control function

1996-08-27

1998-11-03

Scott, Jr., Leon

Coherent light generators

Particular beam control device

Scanning

372 31, H01S 3110

Patent

active

058320121

ABSTRACT:
A laser scanning unit emits a laser beam for scanning a surface within a predetermined scanning range. The laser scanning unit has a laser diode, and a laser diode controller for controlling the laser diode to emit the laser beam. The laser beam has an intensity set in accordance with image data corresponding to one of a plurality of predetermined graduation steps within an intensity range defined by a first intensity and a second intensity greater than the first intensity. The laser scanning unit is further provided with a first adjusting system for adjusting the first intensity to become a first predetermined intensity, and a second adjusting system for adjusting the second intensity to become a second predetermined intensity. One of the first adjusting system and the second adjusting system is actuated during each scanning operation, and are actuated alternately during successive scanning operations.

REFERENCES:
patent: 4679057 (1987-07-01), Hamada
patent: 4802179 (1989-01-01), Negishi
patent: 4806946 (1989-02-01), Ohnishi
patent: 4849980 (1989-07-01), Shoji et al.
patent: 4879459 (1989-11-01), Negishi
patent: 4907236 (1990-03-01), Shimada
patent: 4959665 (1990-09-01), Saito et al
patent: 5305337 (1994-04-01), Araki et al.
patent: 5309463 (1994-05-01), Kasai
patent: 5408483 (1995-04-01), Kasai et al.
patent: 5473153 (1995-12-01), Araki et al.

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