METHOD AND APPARATUS FOR ILLUMINATION AND IMAGING

专利名称：METHOD AND APPARATUS FOR

ILLUMINATION AND IMAGING OF ASURFACE

发明人：ZHENG, Joe,SUSSMEIER, John申请号：EP94910141.4申请日：19940218公开号：EP0685092B1公开日：19990519

摘要：An apparatus for illumination and imaging of a surface includes an apparatus forilluminating the surface, an apparatus for obtaining an image of the illuminated surfaceand providing an output signal representative of the obtained image, and an apparatusfor limiting the exposure time of the image-obtaining apparatus to a selected fastexposure time less than the video frame rate of the image-obtaining apparatus. Theimage-obtaining apparatus may be a CCD-based camera (40). The CCD-based camera andthe illumination apparatus may be mounted in a shroud (20) having an opaque side wall. Afirst polarizing film (100) may be provided intermediate the illumination apparatus andthe surface, and a second polarizing film (102), having a polarization orientation

orthogonal to that of the first polarizing film, may be provided intermediate the surfaceand the image-obtaining apparatus. Tip switches (130, 132) may be provided to preventactivation of the illumination apparatus and the image obtaining apparatus except when alower edge of the shroud side wall is in contact with the surface.

申请人：UNITED PARCEL SERVICE INC

地址：US

国籍：US

代理机构：Heusler, Wolfgang, Dipl.-Ing.

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