Title: Method and device for regulating photoelectric module of scanner
Application Number: 99106257 Application Date: 1999.05.12
Publication Number: 1274134 Publication Date: 2000.11.22
Approval Pub. Date: Granted Pub. Date: 2003.09.10
International Classifi-cation: G06K9/20
Applicant(s) Name: Hongyou Science and Technology Co., Ltd. Address:
Inventor(s) Name:
Attorney & Agent: li qiang
Abstract:
     A method and device for regulating the photoelectric module of scanner is disclosed. A reference pattern is projected to a CCD by lens to generate relative image signals by CCD. According to said image signals, the lens and CCD are regulated in different direction to improve the solubility and amplification ratio. A block with gradually decreased width and a side edge in vertical scan direction is respectively and symmetrically arranged at both side of said reference pattern in width direction to determine the boundary and horizontal state of photoelectric module. Two line patterns respectively perpendicular and oblique to scan direction are arranged between scan widthes of reference pattern to determine the vertical and horizontal resolution of photoelectric module.
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