Title:
SPATIAL STABILIZATION FOR BANDWISE IMAGING DEVICE
Document Type and Number:
WIPO Patent Application WO/1995/018423
Kind Code:
A1
Abstract:
An electro-optic imager, used for exposing photosensitive media, wherein a plurality of imaging beams is used for creating an image. Imaging is done in bands. Imaging and cross-scan movement alternate in time. During the cross-scan movement times, an optical interrupter (202) is preferably used to sense a ruling (114) to determine coarse positional error. Then a second fine-tuning optical element may be used to compensate for residual error. Once this is completed, imaging resumes with the next band. The coarse errors may be characterized and program data modified so as to minimize these errors on subsequent accesses to the same band positions.
Inventors:
SCHOON DAVID J
Application Number:
PCT/US1994/014085
Publication Date:
July 06, 1995
Filing Date:
December 07, 1994
Export Citation:
Assignee:
SCHOONSCAN INC (US)
International Classes:
B41B19/00; G06K15/12; (IPC1-7): G06K15/12; B41B19/00
Foreign References:
| EP0192486A2 | 1986-08-27 | |||
| US5274397A | 1993-12-28 | |||
| US5225851A | 1993-07-06 | |||
| EP0529532A2 | 1993-03-03 |
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