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：EP94910141.0申请日：19940218公开号：EP0685092A1公开日：19951206

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. The CCD-based camera and theillumination apparatus may be mounted in a shroud having an opaque side wall. A firstpolarizing film may be provided intermediate the illumination apparatus and the surface,and a second polarizing film, having a polarization orientation orthogonal to that of thefirst polarizing film, may be provided intermediate the surface and the image-obtainingapparatus. Tip switches may be provided to prevent activation of the illuminationapparatus and the image obtaining apparatus except when a lower edge of the shroudside wall is in contact with the surface.

申请人：UNITED PARCEL SERVICE OF AMERICA, INC.

地址：400 Perimeter Center, Terraces North Atlanta, GA 30346 US

国籍：US

代理机构：Heusler, Wolfgang, Dipl.-Ing.

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