Bow-tie laser scan trace using dynamic laser positioner

Details Bow-tie laser scan trace using dynamic laser positioner Bow-tie laser scan trace using dynamic laser positioner

1996-02-08

1998-09-22

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250582, 358474, H01J 314

Patent

active

058117954

ABSTRACT:
Method and apparatus for scanning in a bow-tie pattern, where such pattern is effectuated by either directing a beam or aiming a laser. Methods are provided for correcting errors in movement of the beam. One such method includes the use of a calibration grating on a recording media, with the data derived from the calibration table being used to generate a lookup table. The lookup table providing correction factors that serve to diminish variations in the beam path.

REFERENCES:
patent: 4352984 (1982-10-01), Ohara
patent: 5122659 (1992-06-01), Agano
patent: 5488489 (1996-01-01), Miyagawa
patent: 5638189 (1997-06-01), Yanagisawa

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