Apparatus with light-modulating unit for forming pattern

Details Apparatus with light-modulating unit for forming pattern Apparatus with light-modulating unit for forming pattern

2007-07-24

2007-07-24

Nguyen, Henry Hung (Department: 2851)

Photocopying

Projection printing and copying cameras

Distortion introducing or rectifying

C250S492220

Reexamination Certificate

active

11200200

ABSTRACT:
An apparatus for forming a pattern has a light-modulating unit, a scanner, a pattern data processor, a light modulating controller, a position-error detector, and a correction value calculator. The pattern data processor generates band-pattern data corresponding to each scanning band on the basis of pattern data matching a preceding pattern that is repeatedly and regularly formed on the photo-sensitive material. The position-error detector detects a position-error of the preceding pattern relative to a pattern area. The correction value calculator calculates an alignment correction value in each pattern area on the basis of the position-error, so as to overlay the pattern on the preceding pattern. The pattern data processor corrects the band-pattern data in accordance with the alignment correction value while classifying each exposure data of the band-pattern data into a corresponding pattern area.

REFERENCES:
patent: 2004/0218161 (2004-11-01), Okuyama
patent: 2005/0030500 (2005-02-01), Okuyama
patent: 2000-122303 (2000-04-01), None
patent: 2003-057837 (2003-02-01), None
U.S. Appl. No. 10/834,236, filed Apr. 29, 2004.
English Language abstract of JP-2000-122303.
English Language abstract of JP-2003-057837.

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