Method and apparatus for recording a flat field image

Details Method and apparatus for recording a flat field image Method and apparatus for recording a flat field image

G - Physics

03

G

G03G 15/05 (2006.01) G02B 13/00 (2006.01) G02B 26/12 (2006.01) G02B 27/00 (2006.01)

Patent

CA 2305967

The invention features a flat field image printing apparatus. The printing apparatus includes: a light source responsive to an image modulated signal and producing an image modulated light beam; a beam deflector supported for rotary motion to deflect the image modulated light beam onto an image recording medium in response to the rotary motion; and a lens assembly configured to convert the deflected image modulated light beam into an achromatic focused beam spot which moves repeatedly in a first scan direction and over a range of scan angles to provide a highly resolved printed image across the recording medium. In other aspects, the invention features a high-speed printing apparatus employing multiple light sources, and an achromatic f- theta lens for use in such printing apparati.

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