Apparatus for forming pattern

Details Apparatus for forming pattern Apparatus for forming pattern

2006-02-07

2006-02-07

Mathews, Alan (Department: 2851)

Photocopying

Projection printing and copying cameras

Illumination systems or details

C347S225000, C347S247000, C347S249000

Reexamination Certificate

active

06995832

ABSTRACT:
An apparatus for forming a pattern has a beam position detector, a fine-section scale corrector, a pulse data selector, and a control pulse signal generator. The beam position detector measures a position of the beam on a scanning-line. The fine-section scale corrector changes a scale of a series of fine-sections to a series of corrected fine-sections, in accordance with a scale-change rate, to change a scale of the pattern. The pulse data selector selects a set of pulse data, corresponding to a length of the corrected fine section that the beam passes, from a series of sets of pulse data. The control pulse signal generator successively generates a sequence of control pulse signals in accordance with the selected set of pulse data.

REFERENCES:
patent: 5241330 (1993-08-01), Kawabata et al.
patent: 5247373 (1993-09-01), Iwama et al.
patent: 5436728 (1995-07-01), Watanabe
patent: 6011256 (2000-01-01), Takada
patent: 6686948 (2004-02-01), Takeuchi
patent: 2549011 (1996-08-01), None

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