Beam scanning apparatus and apparatus for writing image informat

Details Beam scanning apparatus and apparatus for writing image informat Beam scanning apparatus and apparatus for writing image informat

1992-07-14

1993-02-09

Ben, Loha

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359196, 359213, 250236, 356152, G02B 2608

Patent

active

051856760

ABSTRACT:
A beam scanning apparatus for scanning light beam on a scanning surface, has a deflector, a scanning mechanism, a detector and a controller. The deflector deflects the light beam so as to guide it to the scanning surface. The scanning mechanism functions to change at least one of a deflection angle and a deflection position of the deflector so that the light beam is scanned on the scanning surface. The detector detects the scanning state of the light beam by the scanning mechanism on the scanning surface by receiving the light beam from the deflector. The controller corrects at least one of the deflection angle and the deflection position of the deflector on the basis of the detection result of the detector.

REFERENCES:
patent: 3614212 (1971-10-01), Hock
patent: 4283145 (1981-08-01), Miyazawa
patent: 4318582 (1982-03-01), Minoura et al.
patent: 4321700 (1982-03-01), Russell
patent: 4829339 (1989-05-01), Dwyer
patent: 4841137 (1989-06-01), Mochizuki et al.
patent: 4878202 (1989-10-01), Slob

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